[comp.sys.ibm.pc] C.ITOH 8510ap prom changes?

kerl@ingr.com (Dan Kerl) (12/21/89)

I have a 5 year old C.ITOH 8510 printer that works fine. However, it isn't
compatable with the what DOS expects to see for a printer; ESC
sequences different, characters 128-255 different, etc.

My question:
Does anyone know if there are aftermarket proms available for this
printer that would make it ibm/epson compatable? I hate to dispose of
this printer, since it works well and has a push tractor (unlike the
printer I am now using, an Epson LX-800).

Any other suggestions for getting around this compatability problem
would be most appreciated. Thanks.

Dan Kerl - Intergraph Corp.  205-730-6118
internet: b11!cmack!kerl@ingr.com
UUCP:     uunet!ingr!b11!cmack!kerl

emmo@moncam.co.uk (Dave Emmerson) (12/22/89)

In article <8066@ingr.com>, kerl@ingr.com (Dan Kerl) writes:
> I have a 5 year old C.ITOH 8510 printer that works fine. However, it isn't
> compatable with the what DOS expects to see for a printer; ESC
> sequences different, characters 128-255 different, etc.
> [deleted]
> Any other suggestions for getting around this compatability problem
> would be most appreciated. Thanks.
> 

If you're really determined to keep using it, you'll find it easier to write
a filter programme than hacking the printer's ROM. In fact you may well find
almost anything is easier.
Modifying the founts isn't quite so bad - if you write youself a small
screen editor, you can step through the existing ones and modify where
needed. I did this once with a Brother 1109 (or was it 1209?) - it wasn't
much fun finding the base. Try searching for 7 0x00 bytes contiguously,
if you're lucky there'll only be a few, and one will be the start of the
space character bitmap.

Good luck, you'll need it!

Dave E.

(NB : I KNOW the brother has downloadable font capability, I had my reasons.)