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Cardco +G and Music Const. Set [message #112151] Mon, 16 September 2013 13:39 Go to next message
rcf is currently offline  rcf
Messages: 10
Registered: February 2013
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Junior Member
Message-ID: <709@inuxd.UUCP>
Date: Mon, 18-Feb-85 10:08:42 EST
Article-I.D.: inuxd.709
Posted: Mon Feb 18 10:08:42 1985
Date-Received: Wed, 20-Feb-85 03:24:39 EST
Organization: AT&T Consumer Products Div., Indianapolis
Lines: 14

	My Cardco +G never worked with graphics so I copied
a ROM from a freinds and now appears to work. The problem is
with the Music Construction Set software print command. The
print head cycles rapidly back and forth approximately one
inch as if it were scanning. It takes over 15 minutes just to
draw the Bass and Treble Cleff symbols and much wear and tear
on the printer mechanism. I am using an Epson RX-80 printer.
Has anyone else seen this problem or have I not got the correct
ROM yet ?????

		Thanks in Advance!     R. C. Fitch
Re: Cardco +G and Music Const. Set [message #112166 is a reply to message #112151] Mon, 16 September 2013 13:40 Go to previous message
Originally posted by: aronov@csd2.UUCP (Boris Aronov)
Message-ID: <3290001@csd2.UUCP>
Date: Thu, 21-Feb-85 12:41:00 EST
Article-I.D.: csd2.3290001
Posted: Thu Feb 21 12:41:00 1985
Date-Received: Tue, 26-Feb-85 05:39:29 EST
References: <709@inuxd.UUCP>
Organization: New York University
Lines: 24

I have a Microline 92 and use it with Cardco/G+. It prints OK all non-graphics (standard ASCII).
All PET graphics is printed in a weird way: the printhead scans
back and forth over the character to be printed a couple of times.
This repeats for EACH graphics character.
I suspect that G+ tries to emulate Commodore graphics including
the 8x8 dot format. For this it sometimes has to
print in two (or more) passes. It does a CR and a dot-addressed TAB before each pass. 
Because of shortest-pass seeking of the printer the head only moves about 1/2" to each side.
(Note: Okidata M92 does NOT have 8-bit graphics, only 7-bit. Hence multiple passes. It also uses (I suspect)
enhanced/emphasized mode to get denser, more readable graphics characters.
Epson probably does multiple density graphics, hense multiple passes.)

Cure -- Unknown to me. I prefer (when programming myself & using packaged programs) 
to declare that I have an ASCII printer and do everything in 
transparent mode.
(Obvious disadvantage -- I don't use the "G" in G+ -- it behaves
as a dumb interface)


P.S. Okidata (whatever is the number) color graphics printer 
supposedly directly compatible with Commodore is said to print the same way.
( I cannot guarantee that, for it might just be doing a pass for each color ).
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