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authorKarl Berry <karl@freefriends.org>2020-01-28 22:36:40 +0000
committerKarl Berry <karl@freefriends.org>2020-01-28 22:36:40 +0000
commitaf8548120c959b3300b82d56734b8259ab0808ce (patch)
tree36698b6e47df01dabce0eb51db95ba5f5fca99ef /Master/texmf-dist/fonts/source/public
parent3415fbd0508eeafd0f7970490bbd418c9c476b79 (diff)
modes (28jan20)
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+% {\tt\catcode`\$=12 $Id: modes.mf,v 1.26 2020/01/28 19:14:12 karl Exp $ }
+%%\font\tenlogosl=logosl10
+%%\def\logofont{\ifdim\fontdimen1\font>0pt \tenlogosl\else\tenlogo\fi}
+%%\def\MF{{\logofont META}\-{\logofont FONT}}
+%%\def\9{${\rm\%}}% print initial comments ragged right
+%%\let\origunderscore=\_ % use character from tt font:
+%%\def\_{\ifdim\fontdimen3\font=0pt \char`\_\else\origunderscore\fi}
+%%\vbadness=10000 % all-code-example page
+%%%%
+%%% input generate
+%%% def mode_def
+%%% end bye primitive_end_
+%%% addto define_whole_vertical_blacker_pixels %%%% missing in plain.mft
+%%% addto coding_scheme font_face_byte font_family %%%% like font_size
+%%% addto BCPL_string mode_param mode_special_ mode_output_specials_
+%%% true mode_common_setup_ mode_write_white_setup_ %%%% like mode_setup
+%%% true mode_include_extra_info
+%%% true landscape landscape_
+%%% good mode_guard_ %%%% variable that take suffixes
+%%%%
+%
+% Compiled 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2002, 2004,
+% 2005, 2008, 2020 by Karl Berry. This file is not copyrighted and may
+% be used freely. You can retrieve the latest version from {\tt
+% https://ctan.org/pkg/modes}, among other places.
+%
+% Feel free to change the definitions of |localfont|, |screen_cols|,
+% and |screen_rows| at the end of file (see explanations below).
+%
+% If you make a new |mode_def|, please send it to
+% {\tt tex-fonts@math.utah.edu} (explanations below also).
+%
+% The mode definitions start at `Here are the modes', several hundred
+% lines down. The companion files {\tt modelist.txt} and {\tt
+% modenames.txt} list the modes one per line, with and without comments.
+%
+% A common use for modes nowadays is to make high-resolution bitmaps from
+% \MF-only fonts to include in PDF output or for autotracing. The
+% |dpdfezzz| mode is an 8000$\,$dpi mode with canonical parameter values,
+% intended for this purpose. (Running {\tt dvips -Ppdf} will use this.)
+% If you want a lower resolution, similar canonical modes are |supre|
+% at 2400$\,$dpi mode and |ultre| at 1200$\,$dpi.
+%
+% This file can be run through {\tt mft} and \TeX\ to produce a nice
+% pretty-printed listing; the resulting {\tt modes.pdf} file is included
+% in the distribution.
+%
+%%\begingroup \tt \catcode`\{=12 \catcode`\}=12 \obeyspaces
+% @mffile{
+% author = "The Metafont community",
+% version = "4.0",
+% date = "Tue Jan 28 11:17:07 PST 2020"
+% filename = "modes.mf",
+% email = "tex-fonts@math.utah.edu"
+% checksum = "2621 13018 95640",
+% codetable = "ISO/ASCII",
+% supported = "yes",
+% docstring = "
+%%\endgroup
+%
+% This file is a collection of putatively all extant \MF\ modes.
+%
+% If you have a device which is not mentioned in this file, the best
+% thing to do is try to find a device with similar resolution (search
+% for the appropriate lines), and see if that suits (a list of fonts to
+% try is given above). Otherwise, methods for fiddling with the
+% parameters are described in detail below.
+%
+% Unfortunately, the number of modes eats up a lot of memory; if your
+% \MF\ has not increased the table sizes, you may need to remove
+% some of the modes from this file (please rename it to something else then,
+% e.g., {\tt local.mf}). If you can suggest a way to redefine |mode_def|
+% and/or |mode_setup|, even better; right now, the amount of memory
+% used is approximately four times the length of the |mode_def| names.
+%
+% The primary names are intentionally all eight characters or less, and
+% strictly lowercase. This makes it feasible to use them for portable
+% directory names, and the \TeX\ Directory Structure standard recommends
+% doing so. The synonyms are historical equivalents.
+%
+% It also makes definitions to put specials identifying the mode in
+% the \MF\ GF output, and to put the coding scheme and
+% other so-called Xerox-world information in the TFM output. This can
+% be made to happen by calling |mode_include_extra_info|.
+%
+% It also defines a macro |landscape| that inverts |aspect_ratio| and
+% changes |pixels_per_inch|, so you can say {\tt mode := whatever;
+% landscape; ...} to get landscape fonts. But I can't think of any
+% reasonable way to reflect the |landscape| in the directory name, so
+% there are also |mode_def|'s for the devices with non-square aspect
+% ratios in landscape mode.
+%
+% Finally, it has some code to handle write-white devices better; this
+% code comes into play if a |mode_def| includes the statement
+% |mode_write_white_setup_;|. Such |mode_def|s should also define
+% |blacker_min|. For further discussion of write/white and white/black
+% devices, see Pierre MacKay's article in the proceedings of the
+% 1991 Raster Imaging and Digital Typography conference:
+%
+%%\begingroup \tt \catcode`\{=12 \catcode`\}=12 \obeyspaces
+% @String{proc-RIDT91 = "Raster Imaging and Digital Typography II"}
+% @String{pub-CUP = "Cambridge University Press"}
+%
+% @Inproceedings{Mackay:RIDT91-205,
+% author = "Pierre A. MacKay",
+% title = "Looking at the Pixels: Quality Control for 300 dpi
+% Laser Printer Fonts, especially {\MF}s ",
+% pages = "205--215",
+% crossref = "Morris:RIDT91",
+% }
+%
+% @Proceedings{Morris:RIDT91,
+% title = proc-RIDT91,
+% booktitle = proc-RIDT91,
+% year = "1991",
+% editor = "Robert A. Morris and Jacques Andr{\'e}",
+% publisher = pub-CUP,
+% address = pub-CUP:adr,
+% acknowledgement = ack-kb,
+% }
+%%\endgroup
+%
+% This file is typically loaded when making a \MF\ base; \TeX\ Live does
+% this by default, but to do it manually, for example, the command line
+%%\begingroup \tt \obeyspaces
+% inimf plain input modes dump
+%%\endgroup
+% makes a file {\tt plain.base} (or {\tt plain.bas}, or something like that)
+% with all the modes herein defined (plain itself defines modes called
+% |proof|\kern-.12em, |smoke|, and |lowres|.)
+%
+% You can make the Computer Modern base with the command line:
+%%\begingroup \tt \obeyspaces
+% inimf plain input modes input cmbase dump
+%%\endgroup
+% It's generally best to avoid doing this, since it's
+% easy to forget to update them. Just using {\tt plain.base} is simplest.
+%
+% On Unix systems, you then install the base file in the system directory
+% as {\tt mf.base}. \MF\ uses the name it was invoked as to determine
+% the format or base file to read; thus running {\tt mf} reads {\tt
+% mf.base}, running {\tt cmmf} reads {\tt cmmf.base}, and so on. {\tt
+% plain.base} and {\tt mf.base} should be the same file (either a hard
+% or soft link is ok), so the examples in {\sl The \MF book\/} work.
+%
+% A user selects a particular mode when running \MF
+% by assigning to the variable |mode|. For example:
+%%\begingroup \tt \obeyspaces
+% mf \char`\\mode:=cx; input cmr10
+%%\endgroup
+% sets up values appropriate for the CanonCX engine.
+%
+% If no mode is assigned, the default is |proof| mode, as stated in {\sl
+% The \MF book}. This is the cause of the ``{\tt .2602gf}'' files which
+% are the subject of periodic questions. The remedy is simply to assign
+% a different mode---|localfont|, for example.
+%
+% Every site should define the mode |localfont| to be a synonym for the
+% mode most commonly used. This file defines |localfont| to be |ljfour|.
+% The values for |screen_rows| and |screen_cols|, which determine how big
+% \MF's window for online output is, should perhaps also be
+% changed; certainly individual users should change them to their
+% own tastes.
+%
+% This file defines {\tt ?} to type out a list of all the known
+% |mode_def|s (once only).
+%
+% Technically, a |mode_def| is a \MF\ definition that typically
+% consists of a series of assignments to various device-specific variables,
+% either primitive or defined in plain. These variables include the
+% following (page numbers refer to {\sl The \MF book\/}:
+%
+% |aspect_ratio|: the ratio of the vertical resolution to the horizontal
+% resolution (page 94).
+%
+% |blacker|: a correction added to the width of stems and similar
+% features, to account for devices which would otherwise make them
+% too light (page 93). (Write-white devices are best handled by a more
+% sophisticated method than merely adding to |blacker|, as explained
+% above.) Compare your results with a good high-resolution example,
+% such as one of the volumes of {\sl Computers \& Typesetting}.
+% If you compare against the output of a typical write-black 300$\,$dpi
+% engine, you will almost certainly wind up with something too dark.
+% |blacker| should never be negative, the EC fonts do not compile with
+% such a value.
+%
+% |fillin|: a correction factor for diagonals and other features which
+% would otherwise be ``filled in'' (page 94). An ideal device would
+% have |fillin=0| (page 94). Negative values for |fillin| typically
+% have either gross effects or none at all, and should be avoided.
+% Positive values lighten a diagonal line, negative values darken it.
+% Changes in the |fillin| value tend to have abruptly non-linear effects
+% on the various design-sizes and magnifications of a typeface.
+%
+% |fontmaking|: if nonzero at the end of the job, \MF\ writes
+% a TFM file (page 315).
+%
+% |o_correction|: a correction factor for the ``overshoot'' of curves
+% beyond the baseline or x-height. High resolution curves look better
+% with overshoot, so such devices should have |o_correction=1|; but
+% at low resolutions, the overshoot appears to simply be a distortion
+% (page 93). Here some additional comments about |o_correction|,
+% courtesy of Pierre MacKay (edited by Karl):
+%
+% At present, I find that |o_correction| works nicely at 80 pixels per
+% em, and gets increasingly disturbing as you move down towards 50
+% pixels per em. Below that I do not think it ought to happen at all.
+%
+% The problem, of course, is that full |o_correction| is supposed to
+% occur only at the zenith and nadir of the curve of `o', which is
+% a small region at high resolution, but may be a long line of
+% horizontal pixels at medium resolution. The full |o_correction|
+% does not change a 300$\,$dpi {\tt cmr10}, but it changes a 21-pixel
+% high {\tt cmr12} to be 23 pixels high. The extra height and depth
+% is seen along a line of seven pixels at the bottom and five at
+% the top. This is a pronounced overshoot indeed.
+%
+% For high-resolution devices, such as phototypesetters, the values
+% for |blacker|, |fillin|, and |o_correction| don't matter all that much,
+% so long as the values are within their normal ranges: between
+% 0 and 1, with the values approaching 0, 0, and 1 respectively.
+%
+% |pixels_per_inch|: the horizontal resolution; the \MF\ primitive
+% |hppp| (which is what determines the extension on the GF filename,
+% as among other things) is computed from this (page 94). (An ``inch''
+% is 72.27$\,$pt in the \TeX\ world.)
+%
+% To be more precise, you can determine the resolution of a font given
+% a |mode_def| and a magnification |m| by simply multiplying
+% |pixels_per_inch| for that |mode_def| by |m|. (Your results may differ
+% from \MF's if you don't use equivalent fixed-point arithmetic.)
+% Then you can determine the number used in the name of the GF font
+% output by rounding. For example, a font generated at |magstep(.5)|
+% (which is $\sqrt{1.2}$, which \MF\ computes as 1.09544) for a printer
+% with |pixels_per_inch=300| will have a resolution of 328.63312 dots
+% per inch, and the GF filename will include the number {\tt 329}.
+%
+% |proofing|: says whether to put additional specials in the GF file for
+% use in making proofsheets via, e.g., the utility program {\tt GFtoDVI}
+% (page 323--4).
+%
+% |tracingtitles|: if nonzero, strings that appear as \MF\ statements
+% are typed on the terminal (page 187).
+%
+% Pierre MacKay {\tt mackay@cs.washington.edu} has a collection of Unix
+% tools to make up a minifont of indicator characters to help in testing.
+%
+% Neenie Billawala's article in the April 1987 issue of {\sl TUGboat}
+% describes how to test your printer for the best set of values for the
+% magic numbers above. Here are some brief comments on the subject,
+% courtesy of Rocky Bernstein and Paul Abrahams:
+%
+% For medium-to-low resolution devices, you can first set the |blacker|
+% and |o_correction| to~0 and decide on a |fillin| value by looking at
+% the diagonal of a lowercase `z' in {\tt cmtt10}, or various lines in
+% LaTeX's {\tt line10} font. The diagonal should be the same thickness
+% as the horizontal bars of the `z'. Then I decide on the |blacker|
+% value, generally by checking the smaller fonts for too much filling
+% in. Finally, you can set the |o_correction| using the guidelines
+% suggested above.
+%
+% The easiest way to make a new |mode_def| is not by modifying this file
+% and rebuilding your base file every time. Instead, use a separate file
+% that contains the appropriate values for the mode parameters and read
+% it in when running \MF. If you're using Dvips or another utility
+% that calls {\tt MakeTeXPK} to make PK files, remember you'll have to call
+% \MF\ explicitly to make fonts until you've rebuilt the base files.
+%
+% To use a separate mode file with \MF, use the following
+% command line:
+%%\begingroup \tt \obeyspaces
+% mf \char`\\smode:="newmode.mf"; mag:=magstep (2.0); input cmr10
+%%\endgroup
+% substituting whatever font and magnification you wish, or omitting
+% the magnification altogether.
+%
+% The file {\tt newmode.mf} should contain lines like this (with no
+% |mode_def| or |enddef|):
+%%\begingroup \tt \catcode`\_=12 \obeyspaces
+% mode_param (pixels_per_inch, 100);
+% mode_param (blacker, 0);
+% mode_param (fillin, 0);
+% mode_param (o_correction, 1);
+% mode_common_setup_;
+%%\endgroup
+% changing the values as appropriate, of course. Once you're satisfied
+% with the parameters, use inimf as described below to rebuild and
+% install the plain (and any other) base files.
+%
+% For more information on the use of |smode|, see page 269 of
+% {\sl The \MF book}.
+%
+% Matt Swift has contributed a short \TeX\ file to help in testing new
+% modes. Remember to remove a leading |"%% "| from each line after
+% extracting it. (Only a single \% is shown in the printed version.)
+% If you don't use this file for testing, please mention what fonts
+% at what sizes you tested your new mode on. This will help other
+% people wondering where particular values came from. Ideally,
+% you would try normal, bold, and italic variants, at sizes around
+% 5$\,$pt, 10$\,$pt and 15$\,$pt.
+%
+%%%% It seems too difficult to get the verbatim stuff right with MFT alone,
+%%%% so why not quote the lines with `%%' and leave the processing to TeX?
+%%%% The only drawback is that comment lines have to start with a blank,
+%%%% since we have two stop MFT from interpreting them as `%%%' comments.
+%%%% Therefore it seems best to quote every line with `%% ' consistently
+%%%% to make it easier to extract them.
+%%%%
+%%%% This verbatim mode is from webman.tex, it assumes that no `?' appears
+%%%% in the text being copied. I've hacked it to insert a single `%' at
+%%%% the start of each line, so that it looks like normal MFT comments.
+%%%%
+%%\def\verbatim{\begingroup \def\9{{\rm\%}}
+%% \def\do##1{\catcode`##1=12 } \dospecials
+%% \parskip 0pt \parindent 0pt
+%% \catcode`\ =13 \catcode`\^^M=13
+%% \tt \catcode`\?=0 \verbatimdefs \verbatimgobble}
+%%{\catcode`\^^M=13{\catcode`\ =13\gdef\verbatimdefs{\def^^M{\ \par\9}\let =\ }} %
+%% \gdef\verbatimgobble#1^^M{\9}}
+%%%%
+%%\verbatim
+%% % modetest.tex -- a file to test a METAFONT mode
+%% %
+%% % by Matt Swift <swift@alum.mit.edu>
+%% %
+%% % This file is in the public domain.
+%% %
+%% % \def\fileversion{v1.2}
+%% % \def\filedate{1995/12/31}
+%% %
+%% % This LaTeX 2e file generates a test page useful for finding a good
+%% % METAFONT mode for your printer. It includes the most sensitive
+%% % letters in three sizes and all standard CMR font shapes.
+%% %
+%% % I've made the macros abstract, and I think this file could easily
+%% % be adapted to test modes for other METAFONT fonts, or simply font
+%% % appearance in general.
+%% %
+%% % If you want to adapt this to a non-LaTeX format, the LaTeX-specific
+%% % commands below that must be altered are \documentclass,
+%% % \begin{document}, \end{document}, \makeatletter, \makeatother,
+%% % \@for, \@setfontsize, \encodingdefault, \pagestyle, \normalfont,
+%% % \rmfamily, \sffamily, \ttfamily, \mdseries, \bfseries, \upshape,
+%% % \itshape, \scshape, and \slshape.
+%%
+%% \def\encodingdefault{T1} % New "Cork" font encoding (dc fonts).
+%% \def\encodingdefault{OT1} % Old font encoding (cm fonts).
+%%
+%% \documentclass{article}
+%% \begin{document}
+%%
+%% % This line can be replaced (by, e.g., sed) to contain a mode name.
+%%
+%% ::Mode::
+%%
+%% \def\makesize#1#2#3{
+%% \expandafter\def\csname ptsize#1\endcsname{#2}
+%% \expandafter\def\csname blsize#1\endcsname{#3}
+%% }
+%%
+%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% % DEFINE HERE THE POINT SIZES with baselineskips you would like to test. %
+%% % With the defaults of 5, 10, and 14 point sizes, everything will fit on %
+%% % one page very easily. Twocolumn would allow several more sizes. %
+%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%
+%% \makesize {A}{5}{6}
+%% \makesize {B}{10}{12}
+%% \makesize {C}{14}{18}
+%%
+%% \def\sizelist{A,B,C}
+%%
+%% \def\letters{%
+%% MoOzZffii-a\"egsS [/$\backslash$\par
+%% }
+%%
+%% \makeatletter
+%% \let\setfontsize\@setfontsize
+%% \let\for\@for
+%% \parindent\z@
+%% \makeatother
+%%
+%% \pagestyle{empty}
+%%
+%% \def\showfonts{%
+%% %
+%% % The groups prevent warnings when intermediate fonts are not available.
+%% %
+%% {\rmfamily \mdseries \upshape \letters} % allow no space before this
+%% {\rmfamily \mdseries \slshape \letters}
+%% {\rmfamily \mdseries \itshape \letters}
+%% {\rmfamily \mdseries \scshape \letters}
+%%
+%% {\rmfamily \bfseries \upshape \letters}
+%% {\rmfamily \bfseries \slshape \letters}
+%% {\rmfamily \bfseries \itshape \letters}
+%%
+%% {\sffamily \mdseries \upshape \letters}
+%% {\sffamily \mdseries \slshape \letters}
+%%
+%% {\sffamily \bfseries \upshape \letters}
+%%
+%% {\ttfamily \mdseries \upshape \letters}
+%% {\ttfamily \mdseries \slshape \letters}
+%% {\ttfamily \mdseries \itshape \letters}
+%% {\ttfamily \mdseries \scshape \letters}
+%% }
+%%
+%% % The \expandafters expand \sizelist.
+%% %
+%% \expandafter \for
+%% \expandafter \sizename
+%% \expandafter :%
+%% \expandafter =%
+%% \sizelist
+%% \do {\setfontsize {\sizename}
+%% {\csname ptsize\sizename\endcsname}
+%% {\csname blsize\sizename\endcsname}%
+%% \vskip 1ex\noindent
+%% \llap{\normalfont\csname ptsize\sizename \endcsname\,pt\quad}%
+%% \showfonts}
+%%
+%% \end{document}
+%% % end of modetest.tex
+%%?endgroup\par
+%%%%
+%%%% Not that anyone would recognize this as the end of the docstring...
+%%\begingroup \tt \catcode`\{=12 \catcode`\}=12 \obeyspaces
+%"
+% }
+%%\endgroup
+
+% Don't let ourselves be processed twice.
+if known modes_mf: endinput; fi;
+modes_mf := 4.0;
+
+% Identify ourselves in the format file.
+base_version := base_version & "/modes 4.0";
+
+% Here are useful macros (also called definitions) we use throughout.
+
+% First, some comments about how the |mode_defs| are constructed (from
+% {\tt rocky@panix.com}). In the past, |mode_defs| unconditionally
+% assigned a value to the various mode-dependent parameters.
+% For example, they contained an assignment |fontmaking:=1|, which
+% tells \MF\ to write a TFM file.
+%
+% But suppose you want to generate a font using all of the setup for
+% some mode |m|, but do not want to generate a TFM? One could create
+% another mode that doesn't have the assignment, but this seems a bit
+% wasteful since the rest of the code in the mode would be duplicated.
+% Furthermore, given the way the mode definitions were written, it was
+% not possible to change the mode parameters. To see why, I review how
+% a \MF\ run typically works.
+%
+% First, \MF\ is invoked with some base file to load. Then you might
+% want give additional instructions, such as |scrollmode|, or |mode:=cx|.
+% Next, you input a parameter file, say {\tt cmr10}. The parameter file
+% calls a driver file such as {\tt roman.mf} with the command
+% |generate roman |. Finally, the driver finishes with |bye| or |end|.
+% Thus, any additional commands you give after the input of the
+% parameter file are ignored.
+%
+% Usually, one of the first things a driver file does is to call
+% |mode_setup|. It is here that the mode parameters are set. (In our
+% hypothetical mode, it would be here that |fontmaking| is assigned.)
+%
+% To allow a flexible setting of |fontmaking|, we can make a simple
+% change: in the |mode_def|, first test to see if a value has been
+% defined prior and only make the assignment if not. That is:
+% |if unknown fontmaking: fontmaking := 1; fi|.
+%
+% Alas, this doesn't work. Primitives, like |fontmaking|, are always
+% |known|. So instead we create ``guard'' variables, specifically,
+% |mode_guard_.fontmaking|; we set the guard when we assign the
+% parameter. Then we test whether the guard is |known| before we
+% actually do an assignment. This allows more flexible definitions: you
+% can specify some of the parameters, and keep the defaults for others.
+%
+% It is also possible to write a program that creates a |mode_def|
+% on the fly. Although useful, this has a slightly different focus
+% than starting with an existing |mode_def| and changing a couple
+% of parameters. In particular, one still has to peek inside the
+% file to see what the old values were and set them again (in the
+% new context). Also, such on-the-fly |mode_def| generation programs
+% are inherently less machine-independent than a scheme that does
+% everything in \MF\ itself.
+%
+% The upshot of all this is the following: we say, e.g.,
+% |mode_param (fontmaking, 1)| below, instead of using the assignment
+% primitive directly. The name (``|mode_param|'') is kept somewhat
+% short because you can also use this to override a mode assignment
+% on the command line or in response to the {\tt **} prompt.
+
+def mode_param (suffix v) (expr e) =
+ if unknown mode_guard_.v:
+ v := e;
+ mode_guard_.v := 1;
+ fi
+enddef;
+
+% This macro is invoked by all the modes, after |pixels_per_inch|
+% has been defined, thus saving some space and time.
+def mode_common_setup_ =
+ mode_param (proofing, 0);
+ mode_param (fontmaking, 1);
+ mode_param (tracingtitles, if pixels_per_inch > 1200: 1 else: 0 fi);
+enddef;
+
+
+% In a similar spirit, here are definitions to change to ``landscape''
+% mode. You just say {\tt mode := whatever; landscape; ...},
+% and when |mode_setup| is executed, the |aspect_ratio| will be
+% inverted, and |pixels_per_inch| changed.
+def landscape =
+ extra_setup := extra_setup & "landscape_;"
+enddef;
+
+def landscape_ =
+ begingroup
+ interim warningcheck := 0;
+ pixels_per_inch := aspect_ratio * pixels_per_inch;
+ aspect_ratio := 1 / aspect_ratio;
+ fix_units; % Too bad we can't do this after any |extra_setup|.
+ endgroup
+enddef;
+
+
+% Here are macros to add specials with mode information to the GF file.
+%
+% Specifically, we add the |pixels_per_inch|, |o_correction|,
+% |aspect_ratio| (if not 1), |mag|, |fillin|, and |mode_def| name. This
+% information can be used to automatically verify that a font file name
+% matches the specification within the file. For example, you could
+% check that the number in the filename matches |mag*pixels_per_inch|.
+% Or, if the |mode_def| name is part of the font directory path
+% (e.g., you put fonts in {\tt .../texmf/fonts/pk/cx}), that all of the
+% bitmap files in the directory have the expected |mode_def| name.
+def mode_special_ (suffix $) =
+ string s, d;
+ s := str $;
+ d := decimal scantokens s;
+ special s & "=" & d;
+enddef;
+
+def mode_output_specials_ =
+ begingroup
+ save d, s, p, p_p_i;
+ string p;
+
+ interim warningcheck := 0; % In case |pixels_per_inch>4096|.
+
+ % We need the old |pixels_per_inch| to compute
+ % the true device resolution.
+ p_p_i = pixels_per_inch / mag;
+
+ % But now we want to change |pixels_per_inch|,
+ % so |save| the old value.
+ save pixels_per_inch;
+ pixels_per_inch := p_p_i;
+
+ special "jobname=" & jobname;
+ mode_special_ (mag);
+
+ p := if string mode:
+ mode
+ else:
+ substring (0, length (mode_name[mode]) - 1) of mode_name[mode]
+ fi;
+ special "mode=" & p;
+
+ mode_special_ (pixels_per_inch);
+ if aspect_ratio <> 1:
+ mode_special_ (aspect_ratio);
+ fi;
+ mode_special_ (blacker);
+ mode_special_ (fillin);
+ mode_special_ (o_correction);
+ endgroup
+enddef;
+
+
+% Here are macros for Xerox-world font info, which can be useful even
+% if you never use a Xerox printer. For instance, {\tt crudetype} uses
+% the |coding_scheme| and it is nice to have the font family on record.
+% This goes into both the TFM file (as |headerbyte| information), and
+% into the GF file (as a |special|).
+
+% Make the string |s| be |n| bytes long.
+def BCPL_string (expr s, n) =
+ for l := if length (s) >= n: n-1 else: length (s) fi: l
+ for k := 1 upto l: , substring (k - 1, k) of s endfor
+ for k := l + 2 upto n: , 0 endfor
+ endfor
+enddef;
+
+% The string |s| names the encoding scheme, e.g., {\tt TeX text}.
+def coding_scheme expr s =
+ headerbyte 9: BCPL_string (s, 40);
+ special "codingscheme=" & s
+enddef;
+
+% The string |s| names the font family, e.g., {\tt CMR}.
+def font_family expr s =
+ headerbyte 49: BCPL_string (s, 20);
+ special "fontid=" & s
+enddef;
+
+% The integer |x| gives the family member number, which should be
+% between 0 and 255.
+def font_face_byte expr x =
+ headerbyte 72: x;
+ special "fontfacebyte";
+ numspecial x
+enddef;
+
+% So users can say |if known Xerox_world: ... fi|, per {\sl The \MF book}.
+Xerox_world := 1;
+
+% For users who want extra information in the output file.
+% This used to be done automatically by redefining end, but DEK reported
+% that as a serious bug on 19 February 2008 to tex-implementors.
+%
+def mode_extra_info =
+ if fontmaking > 0:
+ font_family font_identifier_;
+ coding_scheme font_coding_scheme_;
+ font_face_byte max (0, 254 - round 2designsize);
+ mode_output_specials_;
+ fi;
+enddef;
+
+% This macro |mode_include_extra_info| will insert the above extra
+% information, most importantly the |coding_scheme|, upon |end|.
+% This is called from the {\tt mktextfm} and {\tt mktexpk} scripts if
+% the environment variable {\tt MF\_MODE\_EXTRA\_INFO} is set; the {\tt
+% mftrace} program ({\tt https://ctan.org/pkg/mftrace}) can use this.
+%
+% We need to redefine |end| in the macro to output the information, so
+% save the primitive meaning. And we must make both |end| and |bye|
+% |inner| tokens, so we can define them in the macro.
+%
+let original_end_ = end;
+inner end, bye;
+%
+def mode_include_extra_info =
+ def end =
+ mode_extra_info;
+ original_end_;
+ enddef;
+
+ % {\sl The \MF book} gives |bye| two different definitions (on pages\]
+ % 278 and 321). The first is used in {\tt plain.mf} and is merely\]
+ % a synoynym for the primitive |end|. The second, which is not part\]
+ % of {\tt plain.mf}, is similar to the code given above. We want the\]
+ % extra information to get into the output files regardless of whether\]
+ % the \MF\ source used |end| or |bye|. We just changed |end|;\]
+ % now we have to redefine |bye| again (as on page 278).\]
+ let bye = end;
+enddef;
+
+% Now make |end| and |bye| |outer| again; it seems |let| does not
+% restore this attribute.
+%
+outer end, bye;
+
+% Here are macros to handle write-white devices.
+%
+% The basic correction for write-white fonts occurs in the definition
+% of |font_setup|. This can be used to extend or change the write-black
+% definition in Computer Modern's {\tt cmbase.mf} or other base files
+% based on CM, such as {\tt dxbase.mf}. This has no effect at 1200$\,$dpi.
+def mode_write_white_setup_ =
+ newinternal blacker_min;
+ def define_whole_blacker_pixels(text t) =
+ forsuffixes $=t: $:=hround($.#*hppp+blacker);
+ if $ <=blacker_min-1: $:=blacker_min; fi endfor enddef;
+
+ def define_whole_vertical_blacker_pixels(text t) =
+ forsuffixes $=t: $:=vround($.#*hppp+blacker);
+ if $ <=blacker_min-1: $:=blacker_min _o_; fi endfor enddef;
+
+ % Only do the above once, in case a font file (unnecessarily)
+ % calls |mode_setup| more than once.
+ let mode_write_white_setup_ = relax
+enddef;
+
+
+%%%% Continue to print block comments ragged right, but also check
+%%%% if comments start with \[ indicating lines to be set flush right.
+%%
+%%\def\9{$\futurelet\next\doit}
+%%\let\[=\relax
+%%\def\doit{\ifx\next\[%
+%% \def\next{\hfill{\rm\%}}\else\def\next{{\rm\%}}\fi\next}
+%%%%
+%%\vfill\eject
+% Here are the modes, given mostly in alphabetical order.
+
+% From {\tt J.Hicks@warwick.ac.uk}.
+mode_def agfafzz = %\[ AGFA 400PS (406dpi)
+ mode_param (pixels_per_inch, 406);
+ mode_param (blacker, .2);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .6);
+ mode_common_setup_;
+enddef;
+AgfaFourZeroZero := agfafzz;
+
+% From {\tt picheral@univ-rennes1.fr}.
+mode_def agfatfzz = %\[ AGFA P3400PS (400dpi)
+ mode_param (pixels_per_inch, 400);
+ cx_;
+enddef;
+AgfaThreeFourZeroZero := agfatfzz;
+
+% From {\tt rokicki@neon.stanford.edu}.
+mode_def amiga = %\[ Commodore Amiga (100dpi)
+ mode_param (pixels_per_inch, 100);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .2);
+ mode_common_setup_;
+enddef;
+onezz := amiga;
+OneZeroZero := amiga;
+
+mode_def aps = %\[ Autologic APS-Micro5 (723dpi)
+ mode_param (pixels_per_inch, 722.909);
+ mode_param (blacker, .2);
+ mode_param (fillin, .2);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+
+% From {\tt rocky@panix.com}. Tested on the single APS-6 at IBM Research.
+mode_def apssixhi = %\[ Autologic APS-Micro6 (1016dpi)
+ mode_param (pixels_per_inch, 1016);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+
+% From {\tt ee@dacth51.bitnet}.
+mode_def atariezf = %\[ Atari ST SLM 804 printer (300dpi)
+ mode_param (pixels_per_inch, 300);
+ mode_param (blacker, 0);
+ mode_param (fillin, .5);
+ mode_param (o_correction, 0);
+ mode_param (blacker_min, 2);
+ mode_common_setup_;
+ mode_write_white_setup_;
+enddef;
+AtariSLMEightZeroFour := atariezf;
+
+% From {\tt W.Spit@fys.ruu.nl}. {\tt N.Poppelier@elsevier.nl} says that
+% different previewers use different resolutions (95$\,$dpi, 96$\,$dpi,
+% or 101$\,$dpi), but no one seems to know what the real resolution is.
+mode_def atarinf = %\[ Atari previewer (95dpi)
+ mode_param (pixels_per_inch, 95);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 0.1);
+ mode_common_setup_;
+enddef;
+AtariNineFive := atarinf;
+
+mode_def atarins = %\[ Atari previewer (96dpi)
+ mode_param (pixels_per_inch, 96);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 0.1);
+ mode_common_setup_;
+enddef;
+AtariNineSix := atarins;
+
+% From {\tt ee@dacth51.bitnet}.
+mode_def atariotf = %\[ Atari ST SM 124 screen (101dpi)
+ mode_param (pixels_per_inch, 101);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .4);
+ mode_common_setup_;
+enddef;
+AtariSMOneTwoFour := atariotf;
+
+mode_def bitgraph = %\[ BBN Bitgraph (118dpi)
+ mode_param (pixels_per_inch, 118);
+ mode_param (blacker, .55);
+ mode_param (fillin, .1);
+ mode_param (o_correction, .3);
+ mode_common_setup_;
+enddef;
+
+% From {\tt sjwright@cix.compulink.co.uk}, 9 February 1994.
+mode_def bjtenex = %\[ Canon BubbleJet 10ex (360dpi)
+ mode_param (pixels_per_inch, 360);
+ mode_param (blacker, .6);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .6);
+ mode_common_setup_;
+enddef;
+
+% {\tt cgweav@eskimo.com} (Clayton Weaver), 4 February 1997.
+% Might want to recheck |o_correction|, which could vary per unit.
+mode_def bjtzzex = %\[ Canon BubbleJet 200ex (360 dpi)
+ mode_param (pixels_per_inch, 360);
+ mode_param (blacker, 1.2);
+ mode_param (fillin, .2);
+ mode_param (o_correction, 0);
+ mode_common_setup_;
+enddef;
+
+% {\tt Alastair.Jenkins@nrsc.no}, 30 January 1997.
+mode_def bjtzzs = %\[ Canon BubbleJet 200 (720x360dpi)
+ mode_param (pixels_per_inch, 720);
+ mode_param (aspect_ratio , 0.5);
+ mode_param (blacker, 0.0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1.0);
+ mode_common_setup_;
+enddef;
+
+% {\tt Alastair.Jenkins@nrsc.no}, 30 January 1997.
+mode_def bjtzzl = %\[ BubbleJet 200 landscape (360x720 dpi)
+ bjtzzs_;
+ landscape;
+enddef;
+
+mode_def boise = %\[ HP 2680A (180dpi)
+ mode_param (pixels_per_inch, 180);
+ mode_param (blacker, .55);
+ mode_param (fillin, .1);
+ mode_param (o_correction, .3);
+ mode_common_setup_;
+enddef;
+
+% From {\tt Yves.Arrouye@imag.fr}.
+mode_def canonbjc = %\[ Canon BJC-600 (360dpi)
+ mode_param (pixels_per_inch, 360);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .8);
+ mode_common_setup_;
+enddef;
+CanonBJCSixZeroZero := canonbjc;
+
+% From {\tt swartz@cs.wisc.edu}, 8 April 1993. The straightforward
+% mode with |blacker=0|, |fillin=0|, |o_correction=1| seems to
+% work fine for the Canon EX engine inside Apple's LaserWriter Pro 630.
+% It produces light, clear lines and type. But {\tt ajcarr@ccvax.ucd.ie}
+% sent in the revised values below on 12 December 1993, tested on
+% the major CM fonts at 5, 7, and 10$\,$pt and producing slightly
+% better results.
+mode_def canonex = %\[ LaserWriter Pro 630 (600dpi)
+ mode_param (pixels_per_inch, 600);
+ mode_param (blacker, .2);
+ mode_param (fillin, .1);
+ mode_param (o_correction, .85);
+ mode_common_setup_;
+enddef;
+CanonEX := canonex;
+
+mode_def canonlbp = %\[ Symbolics LGP-10 (240dpi)
+ mode_param (pixels_per_inch, 240);
+ mode_param (blacker, .2);
+ mode_param (fillin, .2);
+ mode_param (o_correction, .4);
+ mode_common_setup_;
+enddef;
+CanonLBPTen := canonlbp;
+
+% This is really 1301.5; MF produces 1301, so use that.
+mode_def cg = %\[ Compugraphic 8600 (1301x1569dpi)
+ mode_param (pixels_per_inch, 1301);
+ mode_param (aspect_ratio, 1569 / pixels_per_inch);
+ mode_param (blacker, .2);
+ mode_param (fillin, .2);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+CompugraphicEightSixZeroZero := cg;
+
+mode_def cgl = %\[ Compugraphic 8600 landscape (1569x1302dpi)
+ cg_;
+ landscape;
+enddef;
+
+% These values from Linotype Linotronic [13]00 modified to 1200$\,$dpi.
+% From {\tt wagman\%muse.hepnet@Csa2.LBL.Gov}.
+mode_def cgnszz = %\[ Compugraphic 9600 (1200dpi)
+ mode_param (pixels_per_inch, 1200);
+ mode_param (blacker, .65);
+ mode_param (fillin, -.1);
+ mode_param (o_correction, .5);
+ mode_common_setup_;
+enddef;
+CompugraphicNineSixZeroZero := cgnszz;
+
+% This has a resolution of |5333 + 1/3| pixels per inch.
+mode_def crs = %\[ Alphatype CRS (5333dpi)
+ mode_param (pixels_per_inch, 4000 + 4000/3);
+ mode_param (blacker, 4);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+
+% This applies to the LaserWriter Plus, HP LaserJet, HP LaserJet Plus,
+% and also the Canon LBP-LX engine, in the LaserJet IIP, QMS 410,
+% and Apple Personal LaserWriter, and also to the CanonSX engine,
+% in the LaserWriter II family. And {\tt hammond@jila02.Colorado.EDU}
+% says it works well for the ``enhanced-resolution'' LaserJet III.
+% {\tt swartz@cs.wisc.edu} is developing a mode for the Canon EX engine
+% inside an Apple Pro 630 printer.
+mode_def cx = %\[ Canon CX, SX, LBP-LX (300dpi)
+ mode_param (pixels_per_inch, 300);
+ mode_param (blacker, 0);
+ mode_param (fillin, .2);
+ mode_param (o_correction, .6);
+ mode_common_setup_;
+enddef;
+CanonCX := cx;
+corona := cx;
+dp := cx; % some kind of DataProducts
+hplaser := cx;
+imagen := cx;
+kyocera := cx;
+laserwriter := cx;
+% I have seen a claim the LaserJet II was the Canon SX
+% write-white engine, but I don't think that's right.
+laserjethi := cx;
+laserjet := cx;
+% {\tt ogawa@orion.arc.nasa.gov} says that this is definitely not a
+% write-white engine, despite earlier versions of this file claiming
+% the contrary. Thus, probably the same parameters as |cx| will do.
+CanonSX := cx;
+CanonLBPLX := cx;
+
+% At least magstep 2 is recommended at this low resolution.
+mode_def datadisc = %\[ DataDisc (70dpi)
+ mode_param (pixels_per_inch, 70);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .2);
+ mode_common_setup_;
+enddef;
+DD := datadisc;
+
+mode_def newdd = %\[ DataDisc (70x93dpi)
+ mode_param (aspect_ratio, 4/3);
+ datadisc_;
+enddef;
+DataDiscNew := newdd;
+
+mode_def newddl = %\[ DataDisc landscape (93x70dpi)
+ newdd_;
+ landscape;
+enddef;
+
+% From {\tt mcgrant@rascals.stanford.edu}. True resolution is 98.2236
+% by 102.4. See comments for |DECsmall| just above.
+mode_def declarge = %\[ DEC 19-inch, 1280 x 1024 (100dpi)
+ mode_param (pixels_per_inch, 100);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 0);
+ mode_common_setup_;
+enddef;
+DEClarge := declarge;
+elvira := declarge;
+
+% From {\tt mcgrant@rascals.stanford.edu}. True resolution is 78.1069
+% by 86.0612, but a square aspect ratio works better; furthermore,
+% Computer Modern isn't prepared to deal with fractional pixel values.
+mode_def decsmall = %\[ DEC 17-inch, 1024 x 768 (82dpi)
+ mode_param (pixels_per_inch, 82);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 0);
+ mode_common_setup_;
+enddef;
+DECsmall := decsmall;
+
+% From {\tt fieberjr@whitman.bitnet}.
+mode_def deskjet = %\[ HP DeskJet 500 (300dpi)
+ mode_param (pixels_per_inch, 300);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .6);
+ mode_common_setup_;
+enddef;
+HPDeskJet := deskjet;
+
+% From {\tt stsmith@ll.mit.edu}, 10 May 93.
+% With |fillin=0|, the diagonal of {\tt cmtt10}'s `z' is too thin.
+% |blacker=.8| too thin, 2 too thick.
+mode_def docutech = %\[ Xerox 8790 or 4045 (600dpi)
+ mode_param (pixels_per_inch, 600);
+ mode_param (blacker, 1);
+ mode_param (fillin, .1);
+ mode_param (o_correction, 0.9);
+ mode_common_setup_;
+enddef;
+XeroxDocutech := docutech;
+
+% From {\tt waits.mf}.
+mode_def dover = %\[ Xerox Dover (384dpi)
+ mode_param (pixels_per_inch, 384);
+ mode_param (blacker, 1.2);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .6);
+ mode_common_setup_;
+enddef;
+
+% Reported by Silas Brown, 4 April 2003, via Debian bug 184875.
+% {\tt dvips -Ppdf} wants 8000$\,$dpi fonts, so define a mode for that.
+mode_def dpdfezzz = %\[ dvips -Ppdf (8000dpi)
+ mode_param (pixels_per_inch, 4000 * 2);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+
+% {\tt ghibo@galileo.polito.it}, for the Amiga ShowDVI previewer.
+mode_def eighthre = %\[ EightThree (83dpi)
+ mode_param (pixels_per_inch, 83);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .2);
+ mode_common_setup_;
+enddef;
+EightThree := eighthre;
+
+% {\tt arno.wagner@acm.org}, 25 November 1997. To print in 360dpi (much
+% faster, but lower quality) use the |epstylus| mode instead. This
+% printer seems to make smaller dots when printing at 720$\,$dpi and
+% larger ones when printing at 360$\,$dpi. I tried 720x1440 resolution
+% as well, but found it not worth the additional time. If you use
+% Ghostscript, you need at least version 5.03 to support 720$\,$dpi on
+% this printer. This mode may work with the Epson Stylus color 800 as
+% well. I tested this mode with Matt Swift's test, found above.
+% With |fillin| set to zero, the test had no `\' at 5$\,$pt.
+%
+mode_def epscszz = %\[ Epson Stylus Color 600 (720 dpi)
+ mode_param (pixels_per_inch, 720);
+ mode_param (blacker, .25);
+ mode_param (fillin, 0.5);
+ mode_param (o_correction, .8);
+ mode_common_setup_;
+enddef;
+
+% From {\tt metcalf@catfish.LCS.MIT.EDU}, 5 Dec 1992.
+mode_def epsdrft = %\[ Epson (120x72dpi)
+ mode_param (pixels_per_inch, 120);
+ mode_param (aspect_ratio, 72 / pixels_per_inch);
+ epson_;
+enddef;
+epsdraft := epsdrft;
+
+mode_def epsdrftl = %\[ Epson (72x120dpi)
+ epsdrft_;
+ landscape;
+enddef;
+
+% From {\tt metcalf@catfish.LCS.MIT.EDU}, 5 Dec 1992.
+mode_def epsfast = %\[ Epson fast (60x72dpi)
+ mode_param (pixels_per_inch, 60);
+ mode_param (aspect_ratio, 72 / pixels_per_inch);
+ epson_;
+enddef;
+
+mode_def epsfastl = %\[ Epson fast landscape (72x60dpi)
+ epsfast_;
+ landscape;
+enddef;
+
+% From Hippocrates Sendoukas {\tt <isendo@mail.ariadne-t.gr>}, 17 April 1999.
+mode_def epsmed = %\[ Epson med MX/FX 9-pin (240x144dpi)
+ mode_param (pixels_per_inch, 240);
+ mode_param (aspect_ratio, 144 / pixels_per_inch);
+ epson_;
+enddef;
+
+mode_def epsmedl = %\[ Epson med MX/FX 9-pin landscape (144x240dpi)
+ epsmed_;
+ landscape;
+enddef;
+
+% These values from Charles Karney, {\sl TUGboat} 8(2), page 133. This
+% is for the Epson MX/FX family (-85, -286), which are 9-pin printers.
+% The 24-pin LQ family have higher resolutions; no one has sent me
+% definitions for them yet. Ditto for Epson's laser printer.
+% (Thanks to {\tt cargo@escargot.cray.com} for all this information.)
+mode_def epson = %\[ Epson MX/FX 9-pin (240x216dpi)
+ mode_param (pixels_per_inch, 240);
+ mode_param (aspect_ratio, 216 / pixels_per_inch);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .2);
+ mode_common_setup_;
+enddef;
+EpsonMXFX := epson;
+epshi := epson;
+epsonfx := epson;
+
+mode_def epsonl = %\[ Epson MX/FX 9-pin landscape (216x240dpi)
+ epson_;
+ landscape;
+enddef;
+
+% From {\tt sdh@po.cwru.edu}, 6 September 93.
+% The modes |cx| and |HPLaserJetIIISi| are too spindly.
+% This works (not awesome, o's and e's are slightly taller than
+% they should be in large pt. fonts) on my Epson Action Laser 1500
+% with LaserJetIIIsi emulation and RITech (Epson's Resolution
+% Enhancement). It might work for the model 1000 or some HP's.
+mode_def epsonact = %\[ Epson Action Laser 1500 (300dpi)
+ mode_param (pixels_per_inch, 300);
+ mode_param (blacker, .8);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 0.95);
+ mode_common_setup_;
+enddef;
+EpsonAction := epsonact;
+
+% Corrected to 216$\,$dpi vertically, 5 Dec 1992.
+% From {\tt metcalf@catfish.LCS.MIT.EDU}.
+mode_def epsonlo = %\[ Epson (120x216dpi)
+ mode_param (pixels_per_inch, 120);
+ mode_param (aspect_ratio, 216 / pixels_per_inch);
+ epson_;
+enddef;
+epslo := epsonlo;
+
+mode_def epsonlol = %\[ Epson landscape (216x120dpi)
+ epsonlo_;
+ landscape;
+enddef;
+
+% From {\tt Sebastian\_Kirsch@kl.maus.de}, 19 April 1996. In comparison
+% to some postscript fonts, the characters seemed to light with blacker
+% 0, but much too heavy with a blacker greater than 1. I tried blacker
+% .6 and finally settled for .7. All the other values are rather
+% fictional, I didn't really test them out.
+mode_def epsonsq = %\[ Epson SQ 870 (360dpi)
+ mode_param (proofing, 0)
+ mode_param (pixels_per_inch, 360);
+ mode_param (blacker, .7);
+ mode_param (fillin, .2);
+ mode_param (o_correction, .9);
+ mode_common_setup_;
+enddef;
+EpsonSQEightSevenZero := epsonsq;
+
+% Following three modes from {\tt marc@mpi.nl} (Marc Fleischeuers).
+% I could not quite get the `z' diagonal to get as thin as the
+% horizontal lines, even pushing |fillin| up to 0.8. This printer tends
+% to make things lighter on lower resolutions so I compensate a little
+% with increasing |blacker|. But not all the way, as this would fill in
+% the little holes in the `e' and `s' at 5$\,$pt. Otherwise it's pretty
+% cool, not as crisp as an |ljfour| but better than most inkjets I've seen.
+mode_def epstypro = %\[ Epson Stylus Pro (360dpi)
+ mode_param (pixels_per_inch, 360);
+ mode_param (blacker, 0.2);
+ mode_param (fillin, 0.8);
+ mode_param (o_correction, 0);
+ mode_common_setup_;
+enddef;
+EpsonStylusPro := epstypro;
+
+mode_def epstyplo = %\[ Epson Stylus Pro (180dpi)
+ mode_param (pixels_per_inch, 180);
+ mode_param (blacker, .35);
+ mode_param (fillin, 0.8);
+ mode_param (o_correction, 0);
+ mode_common_setup_;
+enddef;
+EpsonStylusProLow := epstyplo;
+
+% Good time saver, almost as good as 720x720 but a lot faster.
+mode_def epstypmd = %\[ Epson Stylus Pro (720x360dpi)
+ mode_param (pixels_per_inch, 720);
+ mode_param (aspect_ratio, 360 / pixels_per_inch);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0.8);
+ mode_param (o_correction, 0);
+ mode_common_setup_;
+enddef;
+EpsonStylusProMed := epstypmd;
+
+mode_def epstypml = %\[ Epson Stylus Pro landscape (360x720dpi)
+ epstypmd_;
+ landscape;
+enddef;
+epstypmdl := epstypml;
+
+mode_def epswlo = %\[ Epson low MX/FX 9-pin (120x144dpi)
+ mode_param (pixels_per_inch, 120);
+ mode_param (aspect_ratio, 144 / pixels_per_inch);
+ epson_;
+enddef;
+
+mode_def epswlol = %\[ Epson low MX/FX 9-pin landscape (144x120dpi)
+ epswlo_;
+ landscape;
+enddef;
+
+mode_def esphi = %\[ Epson Stylus Pro (720dpi)
+ mode_param (pixels_per_inch, 720);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0.8);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+EpsonStylusProHigh := esphi;
+
+% From {\tt Tobias.Guenzler@uni-konstanz.de}, 8 December 1994.
+%
+% The |blacker| parameter is the most critical; changing |o_correction|
+% has lesser effect, and may also be increased or decreased somewhat.
+% I tested this by comparing output with printouts of a HP LaserJet
+% printer using the LJ fonts. This printer had the fancy resolution
+% enhancement feature (RET) which makes the pixel steps almost
+% invisible. I did most of the comparison with {\tt cmr12}, {\tt cmbx12},
+% {\tt cmr12} magstep2 and {\tt cmss9}.
+%
+% The Stylus printer is a ink printer, but it works with a piezo drive
+% instead of a bubble jet. This may be the reason why it draws its lines
+% very tiny and thin. At least the pixel diameters are very sharp and
+% they are far away from that bulky dots produced by the needles of
+% a NEC P6.
+mode_def epstylus = %\[ Epson Stylus (360dpi)
+ mode_param (pixels_per_inch, 360);
+ mode_param (blacker, .35);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .8);
+ mode_common_setup_;
+enddef;
+
+% {\tt ghibo@galileo.polito.it}, for the Amiga ShowDVI previewer.
+mode_def fourfour = %\[ FourFour (44dpi)
+ mode_param (pixels_per_inch, 44);
+ mode_param (blacker, 0.05);
+ mode_param (fillin, .1);
+ mode_param (o_correction, .2);
+ mode_common_setup_;
+enddef;
+FourFour := fourfour;
+
+% From {\tt drstrip@intvax.uucp}.
+% Revised by {\tt dak@pool.informatik.rwth-aachen.de}, 24 May 1994.
+mode_def gtfax = %\[ G3fax (204x196dpi)
+ mode_param (pixels_per_inch, 204);
+ mode_param (aspect_ratio, 196 / pixels_per_inch);
+ mode_param (blacker, 0);
+ mode_param (fillin, .2);
+ mode_param (o_correction, .2);
+ mode_common_setup_;
+enddef;
+GThreefax := gtfax;
+gtfaxhi := GThreefax;
+
+mode_def gtfaxl = %\[ G3fax landscape (196x204dpi)
+ gtfax_;
+ landscape;
+enddef;
+
+% From {\tt dak@pool.informatik.rwth-aachen.de}, 24 May 1994.
+mode_def gtfaxlo = %\[ G3fax (204x98dpi)
+ mode_param (pixels_per_inch, 204);
+ mode_param (aspect_ratio, 98 / pixels_per_inch);
+ gtfax_;
+enddef;
+
+mode_def gtfaxlol = %\[ G3fax landscape (98x204dpi)
+ gtfaxlo_;
+ landscape;
+enddef;
+
+% {\tt ron@mlfarm.com}, 30 October 1995.
+mode_def highfax = %\[ G3fax (200dpi)
+ mode_param (pixels_per_inch, 200);
+ mode_param (blacker, 0);
+ mode_param (fillin, .2);
+ mode_param (o_correction, .2);
+ mode_common_setup_;
+enddef;
+hifax := highfax;
+
+% {\tt brumski+@osu.edu}, 27 August 1993.
+mode_def hprugged = %\[ HP RuggedWriter 480 (180dpi)
+ mode_param (pixels_per_inch, 180);
+ mode_param (blacker, .55);
+ mode_param (fillin, .1);
+ mode_param (o_correction, .3);
+ mode_common_setup_;
+enddef;
+
+% Some general comments on the IBM printers, courtesy of {\tt rocky@panix.com}.
+%
+% IBM 3820's, 3825's, 3827's and 3835's have some sort of corner imaging
+% or shading that the IBM 3812's and 3816's don't. The latter two models
+% may get this feature in the future.
+%
+% The IBM 3827 is made by Kodak, the rest are IBM engines.
+%
+% Some of the other printers have a knob that allows a service engineer
+% to set one of up to ten levels of darkness. At IBM Research, we run
+% very black. The service engineer sets the level by running a completely
+% black page and then two completely blank ones. The black page
+% must be black and the following two must be completely white.
+%
+% Thanks to Jim Hafner ({\tt hafner@ibm.com}) for experimenting with
+% |blacker|, and Paul Dantzig for information about these printers.
+%
+% From {\tt ARNALDO@RIOSC.bitnet}. This is for the 3820, but can be used
+% for 3812, 3816, 3825, 3837 3800 and 3827 printers (these are all
+% 240$\,$pels IBM printers that use the same font format when driven
+% by PSF/VM).
+mode_def ibm_a = %\[ IBM 38xx (240dpi)
+ mode_param (pixels_per_inch, 240);
+ mode_param (blacker, .35);
+ mode_param (fillin, -.2);
+ mode_param (o_correction, .2);
+ mode_common_setup_;
+enddef;
+
+% From {\tt rocky@panix.com}. For the typewriter, slanted, and italic
+% fonts, |blacker=0| makes the `M's and `W's more legible. But then
+% the weight of the font does not match the others.
+mode_def ibmd = %\[ IBM 38xx (240dpi)
+ mode_param (pixels_per_inch, 240);
+ mode_param (blacker, .3);
+ mode_param (fillin, .4);
+ mode_param (o_correction, .75);
+ mode_common_setup_;
+enddef;
+
+% These values from {\tt melvin@math.psu.edu}.
+mode_def ibmega = %\[ IBM EGA monitor (96x81dpi)
+ mode_param (pixels_per_inch, 96);
+ mode_param (aspect_ratio, .841);
+ mode_param (blacker, .3);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 0);
+ mode_common_setup_;
+enddef;
+
+mode_def ibmegal = %\[ IBM EGA monitor landscape (81x96dpi)
+ ibmega_;
+ landscape;
+enddef;
+
+% From {\tt sperber@provence.informatik.uni-tuebingen.de}, 30 October 1993.
+% The difference of 0.1 in |blacker| really does make a difference.
+mode_def ibmfzon = %\[ IBM 4019 (300dpi)
+ mode_param (pixels_per_inch, 300);
+ mode_param (blacker, .1);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .75);
+ mode_param (blacker_min, 2);
+ mode_common_setup_;
+ mode_write_white_setup_;
+enddef;
+IBMFourZeroOneNine := ibmfzon;
+
+% From {\tt rocky@panix.com}. The print engine is made by Lexmark. The
+% printing person I asked, Paul Dantzig, says that the print quality of
+% the 4019 is fairly regular. Unlike the IBM 4216's, to his knowledge
+% only there is only one print engine by Lexmark has been ever used in
+% the 4019. And unlike the IBM 4029, there are not knobs on the inside
+% that would permit one to adjust the blacker to ones taste.
+%
+% While both RicohA and cx modes settings are acceptable, it looks
+% to me that the RicohA fonts are superior. I base this judgement on
+% tops and bottoms of curves on {\tt cmr10} such as `S', `U' `e' `o' and
+% the apostrophes. This effect is especially noticeable in a small font
+% like {\tt cmr6}.
+%
+% If you want to experiment with another setting, I'd start with |RicohA|
+% and set |blacker| to .1 or 0 instead of .2 but definitely keep
+% |mode_write_white_setup_|; I'd leave |fillin| and |o_correction| unchanged.
+%
+% From {\tt vumalki\%weizmann.weizmann.ac.il@taunivm.tau.ac.il}
+% and {\tt plotkin@theory.stanford.edu}.
+%
+% {\tt hafner@almaden.ibm.com} (Jim Hafner) reports that this works fine
+% for the Lexmark 4039, a.k.a.\ IBM 4039, as along as the ``Printer
+% Darkness'' control is set to ``darker''.
+%
+mode_def ibmfztn = %\[ IBM 4029-30-39, 4250 (600dpi)
+ mode_param (pixels_per_inch, 600);
+ mode_param (blacker, .05);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .75);
+ mode_common_setup_;
+enddef;
+IBMFourZeroTwoNine := ibmfztn;
+IBMFourTwoThreeZero := ibmfztn;
+IBMFourTwoFiveZero := ibmfztn;
+IBMFourZeroThreeNine := ibmfztn;
+LexmarkFourZeroThreeNine := ibmfztn;
+
+% From Rick Simpson via {\tt erikjan@icce.rug.nl}.
+mode_def ibmpp = %\[ IBM ProPrinter (240x216dpi)
+ mode_param (pixels_per_inch, 240);
+ mode_param (aspect_ratio, 216 / pixels_per_inch);
+ mode_param (blacker, 0);
+ mode_param (fillin, .2);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+IBMProPrinter := ibmpp;
+proprinter := IBMProPrinter;
+
+mode_def ibmppl = %\[ IBM ProPrinter (216x240dpi)
+ ibmpp_;
+ landscape;
+enddef;
+
+% From Rick Simpson via {\tt erikjan@icce.rug.nl}. Also gave values
+% of zero for |blacker|, |fillin|, and |o_correction|.
+mode_def ibmsoff = %\[ IBM 6154 display (118dpi)
+ mode_param (pixels_per_inch, 118);
+ mode_param (blacker, .8);
+ mode_param (fillin, .2);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+IBMSixOneFiveFour := ibmsoff;
+
+% From {\tt rocky@panix.com}. This is an old, untested definition.
+mode_def sherpa = %\[ IBM 6670 (Sherpa) (240dpi)
+ mode_param (pixels_per_inch, 240);
+ mode_param (blacker, 1);
+ mode_param (blacker_min, 2);
+ mode_param (fillin, 1);
+ mode_param (o_correction, .5);
+ mode_common_setup_;
+ mode_write_white_setup_;
+enddef;
+IBMSixSixSevenZero := sherpa;
+
+% From {\tt vumalki\%weizmann.weizmann.ac.il@taunivm.tau.ac.il}.
+mode_def ibmteot = %\[ IBM 3812 (240dpi)
+ mode_param (pixels_per_inch, 240);
+ mode_param (blacker, .6);
+ mode_param (blacker_min, 2);
+ mode_param (fillin, .4);
+ mode_param (o_correction, 0);
+ mode_common_setup_;
+ mode_write_white_setup_;
+enddef;
+IBMThreeEightOneTwo := ibmteot;
+IBMUlfHolleberg := IBMThreeEightOneTwo;
+
+% These values from {\tt d\_webb@chcc.harwell.aea-technology.uk}.
+mode_def ibmtetz = %\[ IBM 3820 (240dpi)
+ mode_param (pixels_per_inch, 240);
+ mode_param (blacker, .78);
+ mode_param (fillin, .25);
+ mode_param (o_correction, .5);
+ mode_common_setup_;
+enddef;
+IBMThreeEightTwoZero := ibmtetz;
+
+% From {\tt x92@vm.urz-uni-heidelberg.de} via {\tt schoepf@sc.zib-berlin.de}.
+mode_def ibmtont = %\[ IBM 3193 screen (100dpi)
+ mode_param (pixels_per_inch, 100);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 0);
+ mode_common_setup_;
+enddef;
+IBMThreeOneNineThree := ibmtont;
+
+% From {\tt x92@vm.urz-uni-heidelberg.de} via {\tt schoepf@sc.zib-berlin.de}.
+mode_def ibmtosn = %\[ IBM 3179 screen (87x65dpi)
+ mode_param (pixels_per_inch, 87);
+ mode_param (aspect_ratio, 0.75);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 0);
+ mode_common_setup_;
+enddef;
+IBMThreeOneSevenNine := ibmtosn;
+
+mode_def ibmtosnl = %\[ IBM 3179 screen landscape (65x87dpi)
+ ibmtosn_;
+ landscape;
+enddef;
+
+% These values from {\tt d\_webb@chcc.harwell.aea-technology.uk}.
+% {\tt melvin@math.psu.edu} thinks |pixels_per_inch=96| might be better.
+mode_def ibmvga = %\[ IBM VGA monitor (110dpi)
+ mode_param (pixels_per_inch, 110);
+ mode_param (blacker, .3);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 0);
+ mode_common_setup_;
+enddef;
+
+% The Chelgraph IBX is the machine introduced to North American \TeX\
+% users by Type~2000 in Mill Valley, California; telephone (415)~388-8873.
+% Since the machine's stated output resolution is only 2000$\,$dpi
+% this truly spectacular 9600$\,$dpi must be used for translation to
+% an outline font description. This has been tested and used in a
+% publication of the University of Washington Press. These values
+% from Pierre MacKay, based on Lance Carnes' crs values, at magstep~1.8.
+mode_def ibx = %\[ Chelgraph IBX (9600dpi)
+ mode_param (pixels_per_inch, 4000 + 4000 + 1600);
+ mode_param (blacker, 4);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+ChelgraphIBX := ibx;
+
+% From {\tt local.mf} via {\tt cudat@cu.warwick.ac.uk}.
+mode_def itoh = %\[ CItoh 8510A (160x144dpi)
+ mode_param (pixels_per_inch, 160);
+ mode_param (aspect_ratio, 144 / pixels_per_inch);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .1);
+ mode_common_setup_;
+enddef;
+CItohEightFiveOneZero := itoh;
+
+mode_def itohl = %\[ CItoh 8510A landscape (144x160dpi)
+ itoh_;
+ landscape;
+enddef;
+
+% From {\tt rokicki@cs.umb.edu}.
+mode_def itohtoz = %\[ CItoh 310 (240x144dpi)
+ mode_param (pixels_per_inch, 240);
+ mode_param (aspect_ratio, 144 / pixels_per_inch);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .2);
+ mode_common_setup_;
+enddef;
+citohtoz := itohtoz;
+CItohThreeOneZero := itohtoz;
+cthreeten := itohtoz;
+
+mode_def itohtozl = %\[ CItoh 310 landscape (144x240dpi)
+ itohtoz_;
+ landscape;
+enddef;
+
+% Perhaps the value for |fillin| should be 0.
+mode_def iw = %\[ Apple ImageWriter (144dpi)
+ mode_param (pixels_per_inch, 144);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0.3);
+ mode_param (o_correction, .2);
+ mode_common_setup_;
+enddef;
+imagewriter := iw;
+
+% From {\tt stsmith@ll.mit.edu}, 20 August 93.
+% The mode |cx| is too spindly.
+mode_def jetiiisi = %\[ HP Laser Jet IIISi (300dpi)
+ mode_param (pixels_per_inch, 300);
+ mode_param (blacker, .2);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .7);
+ mode_common_setup_;
+enddef;
+HPLaserJetIIISi := jetiiisi;
+
+% From John Sauter.
+mode_def lasf = %\[ DEC LA75 (144dpi)
+ mode_param (pixels_per_inch, 144);
+ mode_param (blacker, .3);
+ mode_param (fillin, -.1);
+ mode_param (o_correction, 0);
+ mode_common_setup_;
+enddef;
+LASevenFive := lasf;
+
+% Michael Covington's ({\tt mcovingt@ai.uga.edu}) definition for the
+% Lexmark Optra R (4049), reflecting a taste for a heavier than
+% normal rendition of the Computer Modern fonts.
+%
+% You may prefer a lesser value of blacker (down to maybe 1.0).
+% Initially tested on 10, 12, 17-point CMR and 10-point math italic.
+%
+% While we're talking about the Optra R, here's another useful fact:
+% it takes 32-bit-wide 72-pin SIMMs, 70 or 80 ns. Contrary to the
+% documentation, you do not have to use IBM's special SIMMs.
+%
+% The resolution of 1200 and the |blacker| value of 3 causes {\tt cmbsy7}
+% to be generated with incorrect arrows and radical sign. The
+% |vtftzzlo| mode also fails. Decreasing |blacker| to 2 works around.
+% From {\tt infovore@xs4all.nl} (Olaf Weber) and Henrik Schmiediche.
+%
+mode_def lexmarkr = %\[ Lexmark Optra R 4049 (1200dpi)
+ mode_param (pixels_per_inch, 1200);
+ mode_param (blacker, 2); % used to be 3; works around {\tt cmbsy7} bug
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+LexmarkOptraR := lexmarkr;
+
+% Klaus Guntermann {\tt <guntermann@iti.informatik.tu-darmstadt.de>}.
+% 19 January 1998. Mode for a Lexmark Optra S laser printer in true
+% 1200dpi mode. This printer model seems to be the successor of the
+% Optra R series above.
+%
+mode_def lexmarks = %\[ Lexmark Optra S 1250/1650/2450 (1200dpi)
+ mode_param (pixels_per_inch, 1200);
+ mode_param (blacker, 1);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+LexmarkOptraS := lexmarks;
+
+% {\tt uri@watson.ibm.com} (Uri Blumenthal), 9 March 1997.
+% This is really a 1200$\,$dpi printer, but it can be operated in 600dpi mode.
+mode_def lexmarku = %\[ Lexmark Optra R+ 4049 (600dpi)
+ mode_param (pixels_per_inch, 600);
+ mode_param (blacker, .5);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .75);
+ mode_param (tracingtitles, 0);
+ mode_common_setup_;
+enddef;
+
+mode_def linolo = %\[ Linotype Linotronic [13]00 (635dpi)
+ mode_param (pixels_per_inch, 635);
+ linoone_;
+enddef;
+LinotypeOneZeroZeroLo := linolo;
+linohalf := LinotypeOneZeroZeroLo;
+
+% Mode for Linotype Linotronic L-330 with a RIP-50 raster.
+% From: Steven T. Smith {\tt stsmith@ll.mit.edu}, 26 October 95.
+mode_def linolttz = %\[ Linotronic L-300 with RIP-50 (3386dpi)
+ mode_param (pixels_per_inch, 3386);
+ mode_param (blacker, 0);
+ mode_param (o_correction, 1);
+ mode_param (fillin, 0);
+ mode_common_setup_;
+enddef;
+LinotypeLThreeThreeZero := linolttz;
+
+% These values from {\tt d\_webb@chcc.harwell.aea-technology.uk}.
+% The `a' in {\tt cmr5} looks better with |blacker=.3|. Values of .2
+% for both |blacker| and |fillin| have also been used.
+mode_def linoone = %\[ Linotronic [13]00 (1270dpi)
+ mode_param (pixels_per_inch, 1270);
+ mode_param (blacker, .65);
+ mode_param (o_correction, 1);
+ mode_param (fillin, -.1);
+ mode_common_setup_;
+enddef;
+LinotypeOneZeroZero := linoone;
+linohi := LinotypeOneZeroZero;
+linothreelo := LinotypeOneZeroZero;
+
+% These values from {\tt d\_webb@chcc.harwell.aea-technology.uk}.
+mode_def linotzzh = %\[ Linotype Linotronic 300 (2540dpi)
+ mode_param (pixels_per_inch, 2540);
+ mode_param (blacker, .2); % Copied from |aps|---conjectural.
+ mode_param (fillin, .2); % (ditto)
+ mode_param (o_correction, 1); % (ditto)
+ mode_common_setup_;
+enddef;
+linothree := linotzzh;
+LinotypeThreeZeroZeroHi := linotzzh;
+linosuper := linotzzh;
+
+% (From Matt Swift {\tt swift@alum.mit.edu}, 1 Jan 1996.) This is a mode for
+% the HP LaserJet 5P, using dvipsk-5.58f and gs-2.6.2. I tuned it using
+% the file modetest.tex. The first sweep was (b,f,o) = (0, {0, .3, .6},
+% 0). The diagonal of 10$\,$pt lowercase z was too thin at .6, too thick
+% at 0. The second sweep was ({.4, .5, .6, .7}, .3, 0). At .6, the 5$\,$pt
+% small-cap lower-case A was on the verge of being filled in, but .6 is
+% a reasonable value. Blacker .4 looked a little spindly for many of
+% the 5$\,$pt fonts, especially italic and small-cap. The next sweep was
+% (.5, .3, {0, .4, .7, 1}). The sides of the 14$\,$pt upper-case O
+% (especially roman and small-cap) are relatively fatter with
+% o-correction 0 as opposed to 1. Almost every other mode for 600$\,$dpi
+% printers has 1, so I'm going with that.
+%
+mode_def ljfive = %\[ HP LaserJet 5 (600dpi)
+ mode_param (pixels_per_inch, 600);
+ mode_param (blacker, .75);
+ mode_param (fillin, .3);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+laserjetfive := ljfive;
+
+% From Michael Neuhauser {\tt neuhauser@eiunix.tuwien.ac.at}. This is a
+% mode for HP LaserJet 5MP. I started with ljfive and found the Computer
+% Modern fonts much too black. Therefore I experimented with different
+% values of |blacker| to find .4 to be best.
+mode_def ljfivemp = %\[ HP LaserJet 5MP (600 dpi)
+ mode_param (pixels_per_inch, 600);
+ mode_param (blacker, .4);
+ mode_param (fillin, .3);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+laserjetfivemp := ljfivemp;
+% There have been many modes for the LaserJet 4. The current values were
+% found by {\tt kb@tug.org} to be reasonable on a LaserJet 4MP
+% (at the default density setting, with resolution enhancement enabled).
+% I don't intend to change them again (unless someone convinces me
+% that they are truly mistaken in some way), although I would consider adding
+% different modes for other LaserJet 4 printers, if people contribute them.
+%
+% ({\tt cthiele@ccs.carleton.ca} gets better results with the density
+% setting on the printer at 4, instead of 3.)
+%
+% The first LaserJet 4 mode came from {\tt tonnie@ctrl.phys.tue.nl},
+% 13 January 1993, with |blacker=0|, |fillin=0|, and |o_correction=.6|.
+% (This definition was forwarded to me by Barbara Beeton, and was
+% intended to be preliminary.)
+%
+% {\tt fj@iesd.auc.dk} says that |IBMFourZeroTwoNine| works fine.
+%
+% {\tt mbr@research.nj.nec.com} supplied another set of values:
+% |blacker=.6|, |fillin=0|, and |o_correction=1|. He writes:
+% I've tested it extensively at 10$\,$pt and 12$\,$pt in both roman, italic,
+% and bold, and I've checked all the standard smaller sizes (5, 6, 7, 8,
+% and 9$\,$pt). Works reasonably well on both the LaserJet 4 and the 4si,
+% although characters come out somewhat lighter on the 4si. Assumes
+% that the density controls are set to their default values and that the
+% resolution enhancement feature is enabled. The |blacker| value was
+% chosen to make 12$\,$pt text look good; for 10$\,$pt text, set |blacker=.66|.
+%
+% I felt the output with |blacker=.6| was too dark; Computer Modern
+% was never intended to be as dark as it appears on 300$\,$dpi printers.
+% So I've decreased |blacker| to the value below. The other parameters
+% don't seem to matter much. (Even |blacker| doesn't matter all
+% {\it that} much.)
+%
+% Works for a 600$\,$dpi Accel-a-Writer {\tt mackay@cs.washington.edu},
+% 16 August 95.
+%
+% Possibly also usable for the LaserJet 6 family.
+% From {\tt chj@lin.foa.se} (Christian Jvnsson), 29 January 1997.
+%
+mode_def ljfour = %\[ HP LaserJet 4 (600dpi)
+ mode_param (pixels_per_inch, 600);
+ mode_param (blacker, .25);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+laserjetfour := ljfour;
+% {\tt fn@junior.mathtok.polymtl.ca} uses this for the QMS-860.
+qmsesz := ljfour;
+% {\tt pete@lovelace.thi.informatik.uni-frankfurt.de} uses this for the
+% Apple LaserWriter Select 360, with a Fuji Xerox Xerographic engine.
+aselect := ljfour;
+
+% {\tt jrenkema@worldonline.nl}, 2 January 1998. The LaserJet 5M
+% |mode_def|, |blacker=.35|, had very light output on the 4000. The
+% |blacker=2| setting results in output comparable to the LaserJet 5M
+% with |blacker=.35|. It is also noteworthy that in the ProRes 1200 mode
+% HP's resolution enhancement technology (RET) is not used, thus output
+% is exactly according to \MF. But perhaps |blacker=2| is too much, as
+% Computer Modern is supposed to be pretty light.
+mode_def ljfzzz = %\[ LaserJet 4000N, ProRes mode (1200dpi)
+ mode_param (pixels_per_inch, 1200);
+ mode_param (blacker, 1);
+ mode_param (fillin, .1);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+laserjetfourzerozerozero := ljfzzz;
+laserjetfourthousand := ljfzzz;
+
+% {\tt Nicolai Langfeldt <janl@math.uio.no>}, 16 May 1998.
+% This is for the default 16ppm 600dpi mode.
+%
+mode_def ljfzzzfr = %\[ HP LaserJet 4000 FastRes (600dpi)
+ mode_param (pixels_per_inch, 600);
+ mode_param (blacker, 0);
+ mode_param (fillin, .2);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+
+% From {\tt ST-TeX.MF} via {\tt braams@pttrnl.nl}. (The 300dpi LaserJet
+% is another |cx|.)
+mode_def ljlo = %\[ HP LaserJet (150dpi)
+ mode_param (pixels_per_inch, 150);
+ mode_param (blacker, 0);
+ mode_param (fillin, .1);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+laserjetlo := ljlo;
+
+% {\tt Niko Sauer <nikos@friedrichs.up.ac.za>}, 11 October 2000.
+% Here are modes developed for and tested on the HP LaserJet 2100T/TN.
+% Mode ljtozz is for a resolution of 1200dpi, and ljtozzfr for 600dpi
+% Tradeoffs between |fillin| and |blacker| resulted in very clear,
+% sharp renderings of Computer Modern fonts which appears to be
+% preferable to what the modes ljfzzz ljfzzzfr for HP LaserJet 4000
+% yield on this printer. Preferences were tested by scrutiny of the
+% results by sample of people in the vicinity.
+%
+mode_def ljtozz = %\[ HP LaserJet 2100T/TN (1200dpi)
+ mode_param (pixels_per_inch, 1200);
+ mode_param (blacker, .7);
+ mode_param (fillin, .15);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+laserjettwoonezerozero:=ljtozz;
+%
+mode_def ljtozzfr = %\[ HP LaserJet 2100T/TN (600dpi)
+ mode_param (pixels_per_inch, 600);
+ mode_param (blacker, .25);
+ mode_param (fillin, .3);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+laserjettwoonezerozerofastres:=ljtozzfr;
+
+% From {\tt mackay@cs.washington.edu}, 13 January 1993. The actual
+% machine resolution of this machine is $1000 \times 400$, but it is
+% adjusted with the aid of software so that a $1000 \times 1000$ PK file
+% is used. The |o_correction|, however, seems grossly overdone if
+% the expected value of at or near unity is applied (on the grounds
+% that a 1000$\,$dpi font should be able to do full o-correction).
+% Apparently the 400$\,$dpi physical resolution has some effect here.
+% In any case, |o_correction=0.4| looks better, and lines up with
+% about the right optical adjustment on curves. Tested at American
+% School of Classical Studies Publications on 18 July, 1992.
+mode_def lmaster = %\[ LaserMaster (1000dpi)
+ mode_param (pixels_per_inch, 1000);
+ mode_param (blacker, 0.2);
+ mode_param (fillin, 0.0);
+ mode_param (o_correction, 0.4);
+ mode_common_setup_;
+enddef;
+lasermaster := lmaster;
+
+% From {\tt fran@hexamon.demon.co.uk}, 10 March 1996. I tried the entry
+% in modes.mf for a DEC LN03. This turned out much too dark---everything
+% looks bold. I did try sending write-black fonts to this printer, the
+% hairlines disappear. I don't know if these printers have a
+% blackness knob $\ldots$
+mode_def lnotr = %\[ DEC LN03R Scriptprinter (300dpi)
+ mode_param (pixels_per_inch, 300);
+ mode_param (blacker, 0);
+ mode_param (blacker_min, 2);
+ mode_param (fillin, -.6);
+ mode_param (o_correction, .5);
+ mode_common_setup_;
+ mode_write_white_setup_;
+enddef;
+LNOthreR := lnotr;
+
+% From Richard Watson at the Queensland Institute of Technology. This
+% printer is said to have some kind of Xerox engine, but I don't know which.
+mode_def lnzo = %\[ DEC LN01 (300dpi)
+ mode_param (pixels_per_inch, 300);
+ mode_param (blacker, .9);
+ mode_param (blacker_min, 2);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .5);
+ mode_common_setup_;
+ mode_write_white_setup_;
+enddef;
+LNZeroOne := lnzo;
+lps := lnzo;
+LPSFourZero := lnzo;
+
+% From {\tt hammond@jila.Colorado.EDU}, 21 January 1993. Modified from
+% |qms|. Prints exactly like the QMS fonts from Northlake Software.
+mode_def lpstz = %\[ DEC lps20 (300dpi)
+ mode_param (pixels_per_inch, 300);
+ mode_param (blacker, .6);
+ mode_param (fillin, -.3);
+ mode_param (o_correction, .6);
+ mode_common_setup_;
+enddef;
+LPSTwoZero := lpstz;
+
+mode_def lqlores = %\[ Epson LQ-500 (180dpi)
+ mode_param (pixels_per_inch, 180);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .1);
+ mode_common_setup_;
+enddef;
+EpsonLQFiveZeroZeroLo := lqlores;
+
+% This and |EpsonLQFiveZeroZeroLo| also work for a Mannesmann 300
+% (from {\tt cudat@csv.warwick.ac.uk}, 4 September 1991). The $360\times360$
+% modes for these printers fails for {\tt cudat}, however.
+mode_def lqmed = %\[ Epson LQ-500 (360x180dpi)
+ mode_param (pixels_per_inch, 360);
+ mode_param (aspect_ratio, 180 / pixels_per_inch);
+ mode_param (blacker, 0); % 0.3 avoids `holes'.
+ mode_param (fillin, 0);
+ mode_param (o_correction, .1);
+ mode_common_setup_;
+enddef;
+lqmedres := lqmed;
+EpsonLQFiveZeroZeroMed := lqmed;
+
+mode_def lqmedl = %\[ Epson LQ-500 landscape (180x360dpi)
+ lqmed_;
+ landscape;
+enddef;
+
+% These values from {\tt karl@cs.umb.edu}. |blacker = .8| or more
+% thickens dots, to their detriment. |blacker = .6| produces two-pixel
+% stems, which looks pretty good for {\tt cmr}, but it's a little dark
+% for {\tt cmti}, and {\tt cmbx} and {\tt cmr} then turn out the same.
+% |o_correction = 1| made no difference. |fillin = 1| made no
+% difference.
+mode_def lview = %\[ Sigma L-View monitor (118x109dpi)
+ mode_param (pixels_per_inch, 118.06);
+ mode_param (aspect_ratio, 109.25 / pixels_per_inch);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 0);
+ mode_common_setup_;
+enddef;
+
+mode_def lviewl = %\[ Sigma L-View monitor landscape (109x118dpi)
+ lview_;
+ landscape;
+enddef;
+
+% From {\tt Pierre.Soille@ipk.fhg.de}, 13 February 1995.
+% This printer also runs at 300$\,$dpi (try |cx|), 400$\,$dpi (|next|),
+% and 600$\,$dpi (|ljfour|).
+mode_def lwpro = %\[ Apple LaserWriterPro 810 (800dpi)
+ mode_param (pixels_per_inch, 800);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+
+% This is untested.
+mode_def macmag = %\[ Mac screens at magstep 1 (86dpi)
+ mode_param (pixels_per_inch, 86.4);
+ mode_param (blacker, .35);
+ mode_param (fillin, .1);
+ mode_param (o_correction, .3);
+ mode_common_setup_;
+enddef;
+
+% From the VMS distribution tape (except {\tt karl@cs.umb.edu} changed
+% the |o_correction| to zero).
+mode_def mactrue = %\[ Mac screen (72dpi)
+ mode_param (pixels_per_inch, 72);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 0);
+ mode_common_setup_;
+enddef;
+MacTrueSize := mactrue;
+
+% From {\tt mcgrant@rascals.stanford.edu}, 17 December 1992.
+% Various other values made little difference.
+mode_def ncd = %\[ NCD 19-inch (95dpi)
+ mode_param (pixels_per_inch, 95);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 0);
+ mode_common_setup_;
+enddef;
+
+% From {\tt rokicki@neon.stanford.edu}.
+mode_def nec = %\[ NEC (180dpi)
+ mode_param (pixels_per_inch, 180);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .2);
+ mode_common_setup_;
+enddef;
+
+% This is the same as |cx|, except for the resolution.
+mode_def nechi = %\[ NEC-P6 (360dpi)
+ mode_param (pixels_per_inch, 360);
+ cx_;
+enddef;
+lqhires := nechi;
+
+% {\tt fkr@tooyoo1.l.u-tokyo.ac.jp}, 7 June 1995.
+mode_def neclm = %\[ NEC PC-PR406LM (320dpi)
+ mode_param (pixels_per_inch, 320);
+ mode_param (blacker, .1);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .6);
+ mode_common_setup_;
+enddef;
+
+% {\tt fkr@tooyoo1.l.u-tokyo.ac.jp}, 7 June 1995.
+mode_def nectzo = %\[ NEC PC-PR201 series (160dpi)
+ mode_param (pixels_per_inch, 160);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .2);
+ mode_common_setup_;
+enddef;
+NecTwoZeroOne := nectzo;
+
+% From {\tt rokicki@neon.stanford.edu}.
+mode_def nexthi = %\[ NeXT Newgen (400dpi)
+ mode_param (pixels_per_inch, 400);
+ cx_;
+enddef;
+NeXTprinter := nexthi;
+Newgen := nexthi; % From {\tt lambert@silver.cs.umanitoba.ca}.
+
+% From {\tt rokicki@neon.stanford.edu}.
+mode_def nextscrn = %\[ NeXT monitor (100dpi)
+ mode_param (pixels_per_inch, 100);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 0);
+ mode_common_setup_;
+enddef;
+NeXTscreen := nextscrn;
+nextscreen := nextscrn;
+
+% {\tt ghibo@galileo.polito.it}, for the Amiga ShowDVI previewer.
+mode_def nineone = %\[ NineOne (91x91) (91dpi)
+ mode_param (pixels_per_inch, 91);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .2);
+ mode_common_setup_;
+enddef;
+NineOne := nineone;
+
+% From {\tt jbotz@mtholyoke.edu}, 21 April 1993.
+% Make TFM files only.
+mode_def nullmode = %\[ TFM files only (101dpi)
+ % The resolution is irrelevant, but \MF\ always ships out
+ % characters, so don't use the default huge |proof| resolution.
+ mode_param (pixels_per_inch, 101);
+ mode_param (proofing, -1);
+ mode_param (fontmaking, 1);
+enddef;
+
+% {\tt ghibo@galileo.polito.it}, for the Amiga ShowDVI previewer.
+mode_def onetz = %\[ OneTwoZero (120/120) (120dpi)
+ mode_param (pixels_per_inch, 120);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .2);
+ mode_common_setup_;
+enddef;
+OneTwoZero := onetz;
+
+% From {\tt deby@cs.utwente.nl} and {\tt issue@vax.oxford.ac.uk}.
+mode_def ocessfz = %\[ OCE 6750-PS (508dpi)
+ mode_param (pixels_per_inch, 508);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .7);
+ mode_common_setup_;
+enddef;
+OCESixSevenFiveZeroPS := ocessfz;
+
+% From {\tt rokicki@neon.stanford.edu}.
+mode_def okidata = %\[ Okidata (240x288dpi)
+ mode_param (pixels_per_inch, 240);
+ mode_param (aspect_ratio, 288 / pixels_per_inch);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .2);
+ mode_common_setup_;
+enddef;
+okihi := okidata;
+
+mode_def okidatal = %\[ Okidata landscape (288x240dpi)
+ okidata_;
+ landscape;
+enddef;
+
+% {\tt roussel@henri.chem.uleth.ca}. For the dark smoothing mode.
+mode_def okifte = %\[ Okidata 410e in 600DPI mode (600dpi)
+ mode_param (pixels_per_inch, 600);
+ mode_param (blacker, .6);
+ mode_param (fillin, .1);
+ mode_param (o_correction, .85);
+ mode_common_setup_;
+enddef;
+okifourten := okifte;
+
+% From {\tt AMSmodes.def}.
+mode_def pcscreen = %\[ also, e.g., high-resolution Suns (118dpi)
+ mode_param (pixels_per_inch, 118);
+ mode_param (blacker, .5);
+ mode_param (fillin, .1);
+ mode_param (o_correction, .3);
+ mode_common_setup_;
+enddef;
+
+% {\tt fkr@tooyoo1.l.u-tokyo.ac.jp}, 7 June 1995. With the existing
+% |bitgraph| and |pcscreen| modes, `m' looks bad: a long vertical
+% line extends higher than the letter itself.
+mode_def pcprevw = %\[ PC screen preview (118dpi)
+ mode_param (pixels_per_inch, 118);
+ mode_param (blacker, .2);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .2);
+ mode_common_setup_;
+enddef;
+
+% Tektronix Color PostScript printer, from {\tt craig@sunspot@noao.edu}
+% on 14 January 1993. He writes: This is a thermal wax paper printer.
+% The values were determined using the {\tt cmr10} and {\tt cmti10} fonts.
+% The generated fonts look reasonable, although vertical lines and
+% things like the {\tt [}, {\tt ]}, and {\tt /} characters are pretty thin.
+mode_def phaser = %\[ Tektronix Phaser PXi (300dpi)
+ mode_param (pixels_per_inch, 300);
+ mode_param (blacker, 1.1);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+
+% From {\tt metod.kozelj@rzs-hm.si} (Metod Kozelj), 30 July 1998.
+% Parameters other than |blacker| have little effect.
+mode_def phaserfs = %\[ Tektronix Phaser 560 (1200dpi)
+ mode_param (pixels_per_inch, 1200);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+phaserfivesixzero := phaserfs;
+
+% Tektronix Phaser 350 is a 600-by-300 colour wax printer.
+% From {\tt dag@ifi.uio.no} (Dag Langmyhr), 10 January 1997.
+% Perhaps too fat at small sizes (5$\,$pt) but looks OK for 8$\,$pt and more.
+mode_def phasertf = %\[ Tektronix Phaser 350 (600x300dpi)
+ mode_param (pixels_per_inch, 600);
+ mode_param (aspect_ratio, 300/pixels_per_inch);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .6);
+ mode_common_setup_;
+enddef;
+
+mode_def phasertl = %\[ Tektronix Phaser 350 landscape (300x600)
+ phasertf_;
+ landscape;
+enddef;
+phasertfl := phasertl;
+
+% From Aries Arditi {\tt <aries@play.lighthouse.org>}, 3 February 1998.
+% This definition makes one pixel one point, which is convenient when
+% you want to image-process the letter images after rendering, and don't
+% want to add any device corrections. If you want to grab the images off
+% the screen, it's useful to add lines to the definition, as well:
+%
+%%\begingroup \tt \catcode`\_=12 \obeyspaces
+% |mode_param (proofing, 1);
+% extra_endchar:=extra_endchar\&"showit";
+% extra_setup := extra_setup\&"def openit = openwindow currentwindow from
+% origin to (screen_rows,screen_cols) at (0,50) enddef";
+%%\endgroup
+mode_def pixpt = %\[ one pixel per point (72.27dpi)
+ mode_param (pixels_per_inch, 72.27);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+
+% This is a write-white PostScript laser-setter, made by a Xerox
+% subsidiary. Its true aspect ratio is 1200$\,$dpi horizontally and
+% 600$\,$dpi vertically, but {\tt mis@apsedoff.bitnet} says that the
+% printer hides this, and PostScript programs should treat it as having
+% a square aspect ratio. But {\tt george@trevnx.bio.dfo.ca} says that
+% using the nonsquare aspect ratio produces identical output and uses
+% only half the disk space. He also says the fonts are much too dark
+% in general, and produce invisible diagonals in the CM typewriter
+% fonts---but other changes either produce errors or dark output.
+%
+% Printware's headquarters is in Minnesota; telephone (612) 456-1400.
+mode_def prntware = %\[ Printware 720IQ (1200dpi)
+ mode_param (pixels_per_inch, 1200);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+PrintwareSevenTwoZeroIQ := prntware;
+printware := prntware;
+
+% From John Gourlay. See {\sl TUGboat} 8(2), page 133.
+mode_def qms = %\[ QMS (Xerox engine) (300dpi)
+ mode_param (pixels_per_inch, 300);
+ mode_param (blacker, .6);
+ mode_param (blacker_min, 2);
+ mode_param (fillin, -.3);
+ mode_param (o_correction, .6);
+ mode_common_setup_;
+ mode_write_white_setup_;
+enddef;
+
+% From {\tt Boris.Hemkemeier@HRZ.Uni-Bielefeld.De}, 24 June 1993.
+% With the QMSOneSevenZeroZero mode, the left stem of `M'
+% in {\tt cmr10} vanishes completely.
+mode_def qmsostf = %\[ QMS 1725 (600dpi)
+ mode_param (pixels_per_inch, 600);
+ mode_param (blacker, 1);
+ mode_param (blacker_min, 2);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+ mode_write_white_setup_;
+enddef;
+QMSOneSevenTwoFive := qmsostf;
+
+% From {\tt queinnec@geant.cenatls.cena.dgac.fr}, 24 March 1993.
+% {\tt k316670@aearn.bitnet} says this print has a CanonNX engine
+% switchable between 300 and 600$\,$dpi.
+%
+% From {\tt mimi@scri.fsu.edu} (Mimi Burbank), 12 September 1996:
+% $\ldots$ When I found the note about the left stem of the `M'
+% disappearing I was concerned.
+%
+% The error, I believe, is due to the fact that the font is generated at
+% 600$\,$dpi, and was most likely printed on a QMS printer with 300$\,$dpi
+% resolution. I just had the same thing happen to me, but with our QMS
+% 860 set at 600dpi (the default for only one of our printers) the
+% output was beautiful! (I printed the same ps file on a QMS 2000 with
+% 300$\,$dpi resolution, and on a QMS 860 with 600$\,$dpi resolution.)
+mode_def qmsoszz = %\[ QMS 1700 (600dpi)
+ mode_param (pixels_per_inch, 600);
+ mode_param (blacker, .2);
+ mode_param (blacker_min, 2);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+ mode_write_white_setup_;
+enddef;
+QMSOneSevenZeroZero := qmsoszz;
+
+% From {\tt teddy@fukt.hk-r.se}, 28 September 1996.
+mode_def qmstftf = %\[ QMS 2425 (1200dpi)
+ mode_param (pixels_per_inch, 1200);
+ mode_param (blacker, .3);
+ mode_param (fillin, .5);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+QMSTwoFourTwoFive := qmstftf;
+
+% These values from Stan Osborne, {\sl TUGboat} 8(2), page 134.
+mode_def ricoh = %\[ e.g., TI Omnilaser (300dpi)
+ mode_param (pixels_per_inch, 300);
+ mode_param (blacker, .2);
+ mode_param (blacker_min, 2);
+ mode_param (fillin, -.2);
+ mode_param (o_correction, .5);
+ mode_common_setup_;
+ mode_write_white_setup_;
+enddef;
+RicohFourZeroEightZero := ricoh;
+RicohFortyEighty := ricoh;
+
+% From {\tt Martin.Ward@durham.ac.uk}. Apparently the engine is
+% different from the Ricoh 4080. With a larger value of |blacker|,
+% characters like the `e' in {\tt cmtt8} look bad.
+mode_def ricoha = %\[ e.g., IBM 4216 (300dpi)
+ mode_param (pixels_per_inch, 300);
+ mode_param (blacker, .2);
+ mode_param (blacker_min, 2);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .75);
+ mode_common_setup_;
+ mode_write_white_setup_;
+enddef;
+RicohA := ricoha;
+IBMFourTwoOneSix := ricoha;
+
+% From John Sauter.
+mode_def ricohlp = %\[ e.g., DEC LN03 (300dpi)
+ mode_param (pixels_per_inch, 300);
+ mode_param (blacker, .65);
+ mode_param (blacker_min, 2);
+ mode_param (fillin, -.2);
+ mode_param (o_correction, .5);
+ mode_common_setup_;
+ mode_write_white_setup_;
+enddef;
+RicohLP := ricohlp;
+LNOthree := ricohlp;
+LNZeroThree := ricohlp;
+
+% From {\tt nishida@src.ricoh.co.jp} (Akihiro Nishida), 30 August 1996.
+% These printers are available only in Japan.
+mode_def ricohsp = %\[ Ricoh sp10ps/lp7200-ux (600dpi)
+ mode_param (pixels_per_inch, 600);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0.2);
+ mode_param (o_correction, .6);
+ mode_common_setup_;
+enddef;
+
+% From {\tt dickson@eeserv.ee.umanitoba.ca}. {\tt gil.cc.gatech.edu}
+% has different values; {\tt img@ai.edinburgh.ac.uk} sets |blacker=.1|.
+% Corrected by {\tt andy@vlsi.cs.caltech.edu}, 28 August 1991.
+% The darkness knob on the printer has a much larger effect than
+% any of these parameters. {\tt carlos@snfep1.if.usp.br} points out
+% that the printer can operate at either 300$\,$dpi or 400$\,$dpi, and
+% if your fonts don't match the setting, naturally they won't look
+% very good. He says the following works in Dvips' {\tt config.ps} file
+% to set 400$\,$dpi:
+%%\begingroup \tt \catcode`\%=12 \catcode`\{=12 \catcode`\}=12 \obeyspaces
+% /SetResolution {
+% /setres where {
+% /setres get exec
+% }{
+% pop
+% } ifelse
+% } def
+% %%BeginFeature *SetResolution 400
+% 400 SetResolution
+% %%EndFeature
+% %%EndSetup
+%%\endgroup
+%
+% (This is the file {\tt resolution400.ps} supplied with NeWSprint.)
+% {\tt simpson@math.psu.edu} only got this work by downloading the code
+% via an extra header file, i.e., having this in the Dvips config file:
+%%\begingroup \tt \obeyspaces
+% M sparcptr
+% D 400
+% h resolution400.ps
+%%\endgroup
+%
+mode_def sparcptr = %\[ Sun SPARCprinter (400dpi)
+ mode_param (pixels_per_inch, 400);
+ mode_param (blacker, .25);
+ mode_param (fillin, .2);
+ mode_param (o_correction, .6);
+ mode_common_setup_;
+enddef;
+SparcPrinter := sparcptr;
+
+% From {\tt ee@dacth51.bitnet}.
+mode_def starnlt = %\[ Star NL-10 (240x216dpi)
+ mode_param (pixels_per_inch, 240);
+ mode_param (aspect_ratio, 216 / pixels_per_inch);
+ mode_param (blacker, 0);
+ mode_param (fillin, .2);
+ mode_param (o_correction, .4);
+ mode_common_setup_;
+enddef;
+StarNLOneZero := starnlt;
+
+mode_def starnltl = %\[ Star NL-10 landscape (216x240dpi)
+ starnlt_;
+ landscape;
+enddef;
+
+% From {\tt alejolo@sue.ideam.gov.co}, 26 November 1998. I have tested
+% the default stylewriter mode in modes.mf v3.4 with Oz\TeX\ and my
+% StyleWriter II, and still output is too light, particularly the serifs
+% and thin cusps such as in CMR's small e, c, t, b and d. Thus I cooked
+% up this mode that prints output similar to a standard system font (I
+% compared text output with Minion Web as it comes with Internet
+% Explorer 4). In general I'd suggest that this mode definition is
+% appropriate for all inkjet printers using a BJC-02 ink cartridge.
+mode_def styletwo = %\[ Apple StyleWriter II (360dpi)
+ mode_param (pixels_per_inch, 360);
+ mode_param (blacker, 0.25);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 0.6);
+ mode_common_setup_;
+enddef;
+swtwo := styletwo;
+
+% |stylewriter| mode added by Andrew Trevorrow
+% {\tt <akt@netspace.net.au>} for Oz\TeX\ users. All
+% parameters (except |pixels_per_inch|) are the same as the |cx| mode so
+% that PK files can be shared by both types of printers.
+%
+% With |blacker=0|, hbar is indistinguishable for h, i.e., the bar
+% disappears. Thus 0.1. From Wulf Hofbauer {\tt <wh@echo.chem.TU-Berlin.DE>},
+% 5 June 1998.
+mode_def stylewri = %\[ Apple StyleWriter (360dpi)
+ mode_param (pixels_per_inch, 360);
+ mode_param (blacker, 0.1);
+ mode_param (fillin, .2);
+ mode_param (o_correction, .6);
+ mode_common_setup_;
+enddef;
+stylewriter := stylewri;
+stylewr := stylewri;
+% From {\tt px@fct.unl.pt (Joaquim Baptista [pxQuim])}. I find
+% |epstylus| far too dark. It seems to me that plain values of 0 to
+% |blacker| and |fillin| work perfectly with values of |o_correction| in
+% the range of .6 to .8. I ended up using [this mode:]
+epstylwr := stylewri;
+% Andrew defines |sw| as well, but I am reluctant to use such a
+% potentially common identifier --{\tt kb@cs.umb.edu}, 8 October 1996.
+
+% From {\tt grunwald@foobar.colorado.edu}. Sun monitors have several
+% different resolutions, but this seems the most common of the lot.
+% Use |pcscreen| for high-resolution monitors.
+mode_def sun = %\[ Sun and BBN Bitgraph (85dpi)
+ mode_param (pixels_per_inch, 85);
+ mode_param (blacker, .35);
+ mode_param (fillin, .1);
+ mode_param (o_correction, .3);
+ mode_common_setup_;
+enddef;
+
+mode_def supre = %\[ Ultre*setter (2400dpi)
+ mode_param (pixels_per_inch, 2400);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+
+mode_def toshiba = %\[ Toshiba 13XX, EpsonLQ (180dpi)
+ mode_param (pixels_per_inch, 180);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .2);
+ mode_common_setup_;
+enddef;
+epsonlq := toshiba;
+
+mode_def ultre = %\[ Ultre*setter (1200dpi)
+ mode_param (pixels_per_inch, 1200);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+Prism := ultre;
+
+% From {\tt Martin.Ward@durham.ac.uk}.
+mode_def vs = %\[ VAXstation monitor (78dpi)
+ mode_param (pixels_per_inch, 78);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 0);
+ mode_common_setup_;
+enddef;
+VAXstation := vs;
+gpx := vs;
+
+% From {\tt erikjan@icce.rug.nl}, 23 August 1991.
+mode_def vtftzz = %\[ Varityper 4200 B-P (1800dpi)
+ mode_param (pixels_per_inch, 1800);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+VarityperFourTwoZeroZero := vtftzz;
+
+% From {\tt mjm@as.arizona.edu}, 26 February 1992.
+mode_def vtftzzhi = %\[ Varityper 4300P (2400dpi)
+ mode_param (pixels_per_inch, 2400);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+VarityperFourThreeZeroZeroHi := vtftzzhi;
+
+% From {\tt mjm@as.arizona.edu}, 26 February 1992.
+mode_def vtftzzlo = %\[ Varityper 4300P (1200dpi)
+ mode_param (pixels_per_inch, 1200);
+ mode_param (blacker, 2); % used to be 3.5, see |lexmarkr| comments.
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+VarityperFourThreeZeroZeroLo := vtftzzlo;
+
+% From {\tt rocky@panix.com}. This can also be used for the Autologic's
+% APS6 cut sheet dry process printer. For that printer, perhaps
+% |blacker=0.8| is better. For the Varityper, though, at |blacker=0.8|
+% the dots of the umlaut start to fill in. For |blacker<0.6|, the tops
+% and bottoms of lowercase g's and s's in {\tt cmr5} drop out.
+mode_def vtfzszw = %\[ Varitype 5060W, APS 6 (600dpi)
+ mode_param (pixels_per_inch, 600);
+ mode_param (blacker, .7);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+VarityperFiveZeroSixZeroW := vtfzszw;
+APSSixMed := vtfzszw;
+
+% The worst problem is toner irregularity. This may be the same printer
+% as the IBM 4250.
+mode_def vtszz = %\[ Varityper Laser 600 (600dpi)
+ mode_param (pixels_per_inch, 600);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+VarityperSixZeroZero := vtszz;
+VTSix := vtszz;
+varityper := vtszz;
+
+% Some information about Xerox printers, from {\tt siemsen@barnard.usc.edu}:
+% The Docutech system and the 4135 have the same engine.
+% The 4050, 4075 and 4090 have the same engine.
+% The 4650 has a unique engine.
+% The 4850 has a unique engine.
+
+% From {\tt SamuelKey@comcast.net}, for enhanced resolution mode. In
+% 600x600 mode, |ljfour| works ok.
+mode_def xpstzz = %\[ Xerox Phaser 6200DP (2400x600dpi)
+ mode_param (pixels_per_inch, 2400);
+ mode_param (aspect_ratio, 600 / pixels_per_inch);
+ mode_param (blacker, 0);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 1);
+ mode_common_setup_;
+enddef;
+XeroxPhaserSixTwoZeroZeroDP := xpstzz;
+
+mode_def xpstzzl = %\[ Xerox Phaser 6200DP landscape (600x2400dpi)
+ xpstzz_;
+ landscape;
+enddef;
+
+
+% From {\tt u12570@uicvm.uic.edu}. These values are mostly guesses.
+mode_def xrxesnz = %\[ Xerox 8790 or 4045 (300dpi)
+ mode_param (pixels_per_inch, 300);
+ mode_param (blacker, 0.4);
+ mode_param (blacker_min, 2);
+ mode_param (fillin, 0);
+ mode_param (o_correction, 0.2);
+ mode_common_setup_;
+ mode_write_white_setup_;
+enddef;
+XeroxEightSevenNineZero := xrxesnz;
+
+% From {\tt u12570@uicvm.uic.edu}. Many variations for different fonts.
+% {\tt bart@cs.tamu.edu} says this works for the Xerox 4700, also.
+mode_def xrxfzfz = %\[ Xerox 4050/4075/4090/4700 (300dpi)
+ mode_param (pixels_per_inch, 300);
+ mode_param (blacker, .7);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .5);
+ mode_common_setup_;
+enddef;
+XeroxFourZeroFiveZero := xrxfzfz;
+
+% From {\tt u12570@uicvm.uic.edu}. He sent many variations of this,
+% for different fonts. I don't know a reasonable way to put them in
+% yet, so this is just the basic entry.
+mode_def xrxnszz = %\[ Xerox 9700 (300dpi)
+ mode_param (pixels_per_inch, 300);
+ mode_param (blacker, .7);
+ mode_param (fillin, 0);
+ mode_param (o_correction, .5);
+ mode_common_setup_;
+enddef;
+XeroxNineSevenZeroZero := xrxnszz;
+
+% From {\tt lee@sq.com}. These values may be improvable.
+mode_def xrxtszz = %\[ Xerox 3700 (300dpi)
+ mode_param (pixels_per_inch, 300);
+ mode_param (blacker, .85);
+ mode_param (blacker_min, 2);
+ mode_param (fillin, -.1);
+ mode_param (o_correction, .5);
+ mode_common_setup_;
+ mode_write_white_setup_;
+enddef;
+XeroxThreeSevenZeroZero := xrxtszz;
+
+mode_def help = %\[ What modes are available?
+ for i = 1 upto number_of_modes:
+ message mode_name[i];
+ endfor;
+ % Doesn't make sense to be able to do this twice, so forget this
+ % definition after it's been used.
+ save ?;
+enddef;
+
+let mode_help = help_;
+
+% These variables determine the size of \MF's (window system)
+% window for online output. These numbers should match whatever
+% the window system is told, or bizarre positioning of the output
+% in the window results. Properly implemented online device drivers
+% will use these values as the default size. The defaults here are
+% from {\tt plain.mf}.
+screen_rows := 400;
+screen_cols := 500;
+
+% The mode most commonly used to make fonts here.
+localfont := ljfour;
+
+%%\bye
+%%%% Local variables:
+%%%% page-delimiter: "^% here are"
+%%%% End: