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From: smcguire@eagle.mit.edu (Scott McGuire)
Newsgroups: comp.sys.mac.hardware
Subject: LW problem: black streaks, replacing toner doesn't help
Message-ID: <1991Apr18.152635.17868@athena.mit.edu>
Date: 18 Apr 91 15:26:35 GMT
Sender: news@athena.mit.edu (News system)
Organization: Sloan School of Management, MIT
Lines: 23

We have a very annoying problem here in the Mac lab I administer.  One of 
our LaserWriter IINTX's prints black lines down the left side of the 
pages.  I know, I know, you're thinking "Replace the toner cartridge!"  
But before you think that, let me say that I have replaced the toner 
cartridge.  Lots of times.  Lots of toner cartridges.  The problem stops 
for a while when I put in a new cartridge - for three or four days - but 
then it starts up again.  To provide satisfactory output (most students 
are printing resumes and theses) I have to keep replacing the toner 
cartidges long before they're at the end of their life (i.e. there's 
plenty of toner left in them).

I've talked to the repair people here and they don't have any suggestions. 
 Are our LaserWriters doing something to the toner cartridges that cause 
them to go bad quickly?  Do we have a bad batch of cartridges (although 
we're on a second order of them, they are the same brand - HP)?  Has 
anyone seen this before?  Is there something I can clean?

Any help would be appreciated.  I keep hoping this problem will go away, 
but it won't.  Thanks!

--Scott
Scott McGuire / Macintosh Support / Sloan School, MIT
Internet: smcguire@eagle.mit.edu  / Bitnet: smcguire@sloan