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Printer and Photocopier Troubleshooting and Repair Collection : Smudged vertical line on HP Laserjet III
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1994-2007, Samuel M. Goldwasser. All Rights Reserved. Reproduction of this document in whole or in part is permitted if both of the following conditions are satisfied: 1. This notice is included in its entirety at the beginning. 2. There is no charge except to cover the costs of copying.
I may be contacted via the Sci.Electronics.Repair FAQ (www.repairfaq.org) Email Links Page.
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(From: Dan Bourque (danbou@nbnet.nb.ca).)
The common problem with these printers is that the fuser drum gets scratched
by the heat sensors of the fuser assembly which gets dirty with toner. Take
a look at the drum of the fuser if the protective coating was scratched to
the metal. If this is the case then the fuser needs to be replaced (around
$80.00 for refurbished). If the protective coating is not scratched to the
metal then the fuser can be removed and disassembled to clean the heat
sensors. Use alcohol and Q-tips to clean.
To print a test page hit the On_Line button to put it off-line and then press
test button for about 5 seconds.