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From: rjn@hpfcmp
Newsgroups: net.micro
Subject: Re: Canon Personal Copier Cartridges
Message-ID: <34400001@hpfcmp>
Date: Tue, 15-Apr-86 18:27:00 EST
Article-I.D.: hpfcmp.34400001
Posted: Tue Apr 15 18:27:00 1986
Date-Received: Sat, 19-Apr-86 08:35:11 EST
References: <272@copper>
Lines: 24

re:  "Can anyone tell me if the cartridges sold for Canon Personal Copiers
     will also work properly in either the HP LaserJet ..."

I asked the same question when the LJ was introduced.  What I heard was:

* The Canon LBP-CX print engine (as used in the LJ and other printers) is a
  reversal processor - where light (the laser) hits the imager, it will be
  dark (take toner) on the printed page.

* The copiers are positive processors - where light (reflected from the
  original document) hits the imager, it will remain light (no toner) on the
  printed page.

* If you could install a copier cartridge in the LBP-CX, the pages would
  have white print on a black background.  Canon, in their infinite wisdom,
  made the cartridges mechanically different to prevent this.

Regards,                                              Hewlett-Packard
Bob "would like to be wrong about this" Niland        3404 East Harmony Road
[ihnp4|hplabs]!hpfcla!rjn                             Fort Collins CO  80525

This article does not represent the official position of the
Hewlett-Packard Company.  The above data is provided for informational
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