Path: utzoo!utgpu!water!watmath!clyde!att-cb!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!pasteur!ucbvax!shuksan.UUCP!mikey
From: mikey@shuksan.UUCP (Mike Fields)
Newsgroups: comp.laser-printers
Subject: Re: Cartridge variation in Canon printers?
Summary: Cannon engine line widths - new cart.
Message-ID: <8804151915.AA28682@brillig.umd.edu>
Date: 7 Apr 88 19:18:32 GMT
References: <8804051954.AA16233@brillig.umd.edu>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Boeing Co., BAC MMST, Seattle, WA
Lines: 27
Approved: laser-lovers@brillig.umd.edu


In article <8804051954.AA16233@brillig.umd.edu>, Tom.Lane@ZOG.CS.CMU.EDU writes:
> I just replaced the toner cartridge for the first time in my HP LaserJet
> (a Canon CX engine).  With the new cartridge, printing is much lighter than
> before, even with the print density dial turned all the way up.  The black
> areas seem to be about the same shade, but they are smaller!  Character
> strokes are thinner... the problem is particularly obvious with Computer
> Modern fonts, for some reason.
> 
> Anybody seen this before?  Can I do anything about it short of replacing
> the new cartridge?  What are the odds that that will help?


Yes - we have an imagen with the cannon engine and noticed this some time
ago.  When we change cartridges, the lines get finer etc.  Over a period of
time (as the cartridge ages), the lines seem to get wider (I think that what
you are seeing is normal print quality and it "degrades" to wider at the
end of the cartridge life).  See if you can find something which was
printed back when the machine was new and see if the lines are not finer
than what they were just before you replaced the cartridge.


-- 
Mikey (yes "he likes it!")
==============================================   Mike Fields
ssc-vax!shuksan!mikey   (206) 251-4638 [work]    12022 NE 138th Pl.
(alt) ssc-vax!mikey     (206) 821-3492 [home]    Kirkland, Wa. 98034