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In article <9105021429.AA11953@crayola.cs.UMD.EDU> jdonovan@GARNET.BERKELEY.EDU (John Donovan) writes:
>We have a HP LJIII with Postscript Cartridge; it works fine. However
>if we try to use the cartridge with an old HP LJII it does not seem
>to recognize it. If we print a postscript file, we just get a text copy
>of the postscript codes. The original purpose was to print from a
>Mac Classic to the HP LJII. Any ideas? Please respond to my e-mail
>address, since I'm not a newsgroup reader usually. Thank-you.
>-- 
>| JOHN J. DONOVAN                   Electron Beam Micro-Analytical Laboratory |
>| DEPARTMENT OF GEOLOGY                       *** PROBE THE EARTH ***         |
>| UNIVERSITY OF CALIFORNIA          Phone :  (415) 642-5459 or (415) 642-3996 |
>| BERKELEY, CA, 94720               Internet :   jdonovan@garnet.berkeley.edu |

The Postscript Cartridge for the LJII is different than the
cartridge for the LJIII.  The only explanation seems to be that
HP wanted to get a small headstart on the other cartridge makers
for the LJIII(read: Greed).  

The LJII looks for a key word on the cartridge to determine if 
it is a program (eg Postscript) or data (eg font).  HP changed the 
key word for LJIII.

So you have to buy two cartridges if you want to run Postscript on
both machines.  Adobe and Pacific Page have cartridges for the
LJII.  Adobe's is offical Adobe, while Pacific Data Products' is 
licensed from Phoenix (clone).  HP's cartridge is Adobe Postscript
and runs only on the LJIII. 

-- 
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| Peter Tapscott - Xerox Engineering Systems, Versatec Products        |
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