liuqing@cvl.umd.edu (Larry Liuqing Huang) (03/18/90)
Does any one out here has a DVI driver for EPSON 24-pin (Actually, PANASONIC emulation) printers on Unix Sys V? Thanks a lot. liuqing@cvl.umd.edu
jdc@naucse.UUCP (John Campbell) (03/20/90)
From article <4382@cvl.umd.edu>, by liuqing@cvl.umd.edu (Larry Liuqing Huang): > Does any one out here has a DVI driver for EPSON 24-pin > (Actually, PANASONIC emulation) printers on Unix Sys V? > > Thanks a lot. > liuqing@cvl.umd.edu In fact, I'd like to have a larger discussion by anyone willing to explain some things. I too have a 24-pin printer--actually a NEC P5200 and I wonder about what font files I should try to use even if I ever find or build a dvi driver. The dots on this printer are 360 dpi, but the pins are .2mm circles which gives about 20% overlap last time I did the calculations. Do I want 240 dpi fonts? 300 or even 360? Do I even want to be in the highest resolution mode or do I want to drop back to 180 dpi and use 180 dpi fonts? Those who have experience and are willing to share information--especially general information about resolution, etc.--please step forward! Thanks, -- John Campbell ...!arizona!naucse!jdc CAMPBELL@NAUVAX.bitnet unix? Sure send me a dozen, all different colors.
wsinpdb@lso.win.tue.nl (Paul de Bra) (03/20/90)
In article <1953@naucse.UUCP> jdc@naucse.UUCP (John Campbell) writes: >From article <4382@cvl.umd.edu>, by liuqing@cvl.umd.edu (Larry Liuqing Huang): >In fact, I'd like to have a larger discussion by anyone willing >to explain some things. I too have a 24-pin printer--actually a >NEC P5200 and I wonder about what font files I should try to use >even if I ever find or build a dvi driver. The dots on this printer >are 360 dpi, but the pins are .2mm circles which gives about 20% >overlap last time I did the calculations. > >Do I want 240 dpi fonts? 300 or even 360? Do I even want to be in >the highest resolution mode or do I want to drop back to 180 dpi and >use 180 dpi fonts? You want 360dpi fonts of course. The thickness of the dots can be (partially) compensated by metafont. Here is a modedef I used: mode_def nec = proofing:=0; % no, we're not making proofs fontmaking:=1; % yes, we are making a font tracingtitles:=0; % no, don't show titles at all pixels_per_inch:=360; % that's the meaning of lowres blacker:=-0.2; % make pens a bit less black fillin:=0; % compensate for diagonal fillin o_correction:=0; % but don't overshoot as much enddef; Metafont does run into a few problems when you specify a negative blacker value, just like when the resolution is a bit too low. In any case, I am a very happy Tex and Nec user. If you want a copy of my dvi2nec driver, please drop me a note. Given a few requests I will send the driver by e-mail, but given many requests I will simply make it available for anonymous ftp. Paul. (debra@research.att.com)