Re: How Should I document Printing a DHGR image on an Apple II?

From	"Christopher G. Mason" <cgm1@my-deja.com>
Newsgroups	comp.sys.apple2, comp.sys.apple2.programmer
Subject	Re: How Should I document Printing a DHGR image on an Apple II?
Date	2014-10-24 23:01 -0400
Organization	A noiseless patient Spider
Message-ID	<m2f3qm$154$1@dont-email.me> (permalink)
References	<m2ddsc$nbe$1@speranza.aioe.org> <m2ernh$5kp$1@speranza.aioe.org>

Cross-posted to 2 groups.

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On 10/24/2014 8:43 PM, Bill Buckels wrote:
> "Bill Buckels" <bbuckels@mts.net> wrote:
>
> I can get info for Epson info printers freely but this ImageWriter seems to
> want money for the Technical Reference Manual. I might just do the PRN file
> conversion for an Epson for now.
>

The ESC codes are documented in the GSport source (check 
imagewriter.cpp). Graphics bits are handled in the REVERSE manner from 
Epson ESC/P printers, least significant bit is the top pin while most 
significant is the bottom pin. Parameter numbers for ESC codes are sent 
as ASCII strings, not raw hex values. I have both the Imagewriter II and 
Imagewriter LQ Technical Reference manuals if you have any questions. 
They were not easy to acquire and unfortunately I have no access to a 
book scanner.

Setting Horizontal resolution (pitch):
ESC n: print in 72 horizontal dpi
ESC N: print in 80 horizontal dpi
ESC E: print in 96 horizontal dpi
ESC e: print in 107 horizontal dpi
ESC q: print in 120 horizontal dpi
ESC Q: print in 136 horizontal dpi
ESC p: print in 144 horizontal dpi
ESC P: print in 160 horizontal dpi

Double the above values when printing with the Imagewriter LQ commands 
below. EG: ESC P produces 320 horizontal dpi when printing with ESC C 
and ESC U.

Graphics codes (8 pins/72 vertical dpi):
ESC G nnnn: Print nnnn standard resolution graphics columns
ESC g nnn: Print 8 x nnn standard resolution graphics columns
ESC V nnnn c: Print nnnn repetitions of graphics bit c.
ESC K n: change color (IW II and LQ only)

Imagewriter LQ only high resolution graphics commands (24 pins/216 
vertical dpi):
ESC C nnnn: Print nnnn x 3 high resolution graphics columns
ESC U nnnn abc: Print nnnn repetitions of high res graphics bits abc.

Parts of the original Imagewriter manual are here: 
<http://lisaem.sunder.net/cgi-bin/bookview2.cgi?zoom=-3?page=0?book=10?Go=Go>

Imagewriter II Codes are here: 
<http://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Peripherals/Printers/Apple%20ImageWriter%20II/Manuals/Apple%20ImageWriter%20II%20-%20Quick%20Reference%20Card.pdf>

Imagewriter II manual: 
<http://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Peripherals/Printers/Apple%20ImageWriter%20II/Manuals/Apple%20ImageWriter%20II%20-%20Owner%27s%20Manual.pdf>

Thread

How Should I document Printing a DHGR image on an Apple II? "Bill Buckels" <bbuckels@mts.net> - 2014-10-24 06:40 -0500
  Re: How Should I document Printing a DHGR image on an Apple II? scott@alfter.diespammersdie.us (Scott Alfter) - 2014-10-24 17:04 +0000
    Re: How Should I document Printing a DHGR image on an Apple II? "Bill Buckels" <bbuckels@mts.net> - 2014-10-25 05:26 -0500
      Re: How Should I document Printing a DHGR image on an Apple II? scott@alfter.diespammersdie.us (Scott Alfter) - 2014-10-28 18:16 +0000
      Re: How Should I document Printing a DHGR image on an Apple II? scott@alfter.diespammersdie.us (Scott Alfter) - 2014-10-28 19:37 +0000
  Re: How Should I document Printing a DHGR image on an Apple II? "Christopher G. Mason" <cgm1@my-deja.com> - 2014-10-24 17:19 -0400
  Re: How Should I document Printing a DHGR image on an Apple II? "Bill Buckels" <bbuckels@mts.net> - 2014-10-24 19:43 -0500
    Re: How Should I document Printing a DHGR image on an Apple II? Steve Nickolas <usotsuki@buric.co> - 2014-10-25 02:30 +0000
    Re: How Should I document Printing a DHGR image on an Apple II? "Christopher G. Mason" <cgm1@my-deja.com> - 2014-10-24 23:01 -0400
      Re: How Should I document Printing a DHGR image on an Apple II? "Bill Buckels" <bbuckels@mts.net> - 2014-10-25 05:12 -0500
      Re: How Should I document Printing a DHGR image on an Apple II? scott@alfter.diespammersdie.us (Scott Alfter) - 2014-10-28 19:20 +0000
        Re: How Should I document Printing a DHGR image on an Apple II? "Bill Buckels" <bbuckels@mts.net> - 2014-10-28 16:24 -0500
    Re: How Should I document Printing a DHGR image on an Apple II? gids.rs@sasktel.net - 2014-10-24 21:15 -0700

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