[mod.computers.laser-printers] LaserWriter probs.

GFoster@USC-ISI.ARPA (Glen Foster) (01/17/86)

Recently our LaserWriter developed a blotchy line down the left center
of the page.  It's about 1/4" wide and gets darker as the density of
the printed image gets higher but always appears in the same place on
the paper.  Blank, or nearly blank pages do not cause it to appear.
It can be erased (with difficulty) with a regular pencil eraser (the
specified markings don't erase) but this is a real pain.  It is not
heavily used and the problem seems to get worse the more it is used.
(This may be my imagination.)

I've tried all the obvious (to me) fixes like replacing the cartridge,
a thorough cleaning etc. and nothing works.  (The new cartridge made
it worse!)  The machine is practically new (about 4000 copies) and
hasn't had any problems before this one.

If anybody has experienced this problem with any Canon-engine machine,
I would appreciate learning how it was resolved.  Our vendor's
"LaserWriter specialist" is on vacation and nobody else there seems to
know anything.  Please don't be too hard on me if I'm missing
something obvious!

Thanks in advance,
Glen   GFOSTER@USC-ISIA.ARPA
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