cdlee@swell.cs.indiana.edu (Chan-Do Lee) (06/19/91)
>HOMH@QUCDN.QueensU.CA writes: >I down loaded Ghostscript 2.2 from SIMTEL20 on Friday. I tested it >with my SVGA monitor and an LQ800 compatible printer and it worked >fine. >gened@techbook.com (Gene Daniel) writes: >I glad to see that it seems to work for the LQ800 printer, however, I can't >get it to work on my Epson FX-286 printer. Many other graphic programs output >graphics to this printer and I have never had any problems. I get nothing but >garbage characters on the printer. It's almost like it doesn't get into >graphics mode. >cdlee@iuvax.cs.indiana.edu (Chan-Do Lee) writes: >I cannot get it to work on my Epson LQ-510, either. It seems that it >has problems with horizontal spacing. For example, a rectangle with >letters in it comes out something like: > > ----- > | | > | a| > | ab | > _____ > >rather than > ----- > | | > | a | > | ab | > _____ tom@dvnspc1.Dev.Unisys.COM (Tom Albrecht) writes >And I can't get it to work with my EX-800. Just prints a lot of junk and >linefeeds. Does anyone know whether the Epson driver in gs is compatible >with the EX series? brian@nsc.nsc.com (Brian Marley) writes >However, when I try to print to my Epson >LQ-1050 (-sDEVICE=epson), the resulting image is distorted. >On some lines, the print head doesn't travel as far, leaving >a ragged right border and shifting part of the picture with >it. It looks like information is being lost within areas of >totally white space (i.e. no pins firing), and at least somewhat >proportionately to the amount of whitespace in the line. This >distinction is especially visible when printing the golfer.ps file. >I've now tried it also on a Compaq 286 connected to an LQ-850, with >identical results. jansteen@cwi.nl (Jan van der Steen) writes: >I noticed in "gdevepsn.c" that the Espon printer codes used for >both horizontal and vertical positioning have been changed since >ghostscript version 2.1.1. >They used to set the linefeed and change the vertical position >with a <lf>. Now the "<esc>Jn" escape sequence is used. >The horizontal positioning used to be done by setting tabs. >Now, "dot tabs" are used: > /* Tab over to the appropriate position. */ > /* Relative tabs work in half-dots. */ > tab *= 2; > fputc(033, prn_stream); > fputc('\\', prn_stream); /* dot tab */ > fputc(tab & 0xff, prn_stream); > fputc(tab >> 8, prn_stream); >So, it will go to the correct horizontal position by means of: > "<esc>\<n1><n2>" I tried to print golfer.ps with gsherc.exe in gs211a.zip. It printed out O.K. without the ragged right border problem. As Jan van der Steen suggests, problems of printing on various Epson printers might be due to the changes for horizontal and vertical positioning.
w8sdz@rigel.acs.oakland.edu (Keith Petersen) (06/20/91)
Ghostscript 2.2 was uploaded to SIMTEL20 by: nate@neutron.lcs.mit.edu (Nate Liskov) PLEASE correspond with him via e-mail instead of posting to the world. He wants to help but is unable to post to Usenet news. He asked me to let you know that he's willing to help but you have to use e-mail to contact him. If you don't know how to use e-mail, press the "r" key now. I have set the "Reply-To:" address in this posting to point to his address. Keith -- Keith Petersen Maintainer of the MSDOS, MISC and CP/M archives at SIMTEL20 [192.88.110.20] Internet: w8sdz@WSMR-SIMTEL20.Army.Mil or w8sdz@vela.acs.oakland.edu Uucp: uunet!umich!vela!w8sdz BITNET: w8sdz@OAKLAND