Question about HP LaserJet 4100 Printer

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Black marks and words on paper

The print is ok, but I have black smudges and words paper, not a clean copy. Will putting a maintenance kit solve this problem?

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Toner Black marks can only come from two places.

The toner cartridge or the fuser.
The best course of action would be to remove the fuser with the power off and line up a sheet with the problem with the fuser to see if possible to line up the mark and see if the fuser has a like defect in that position. I use inches but it is possible 79-80mm would be the edge of an envelope if you print them and I have seen instances where some envelopes over time cause a line on the fuser which then shows up on regular paper.

Hope this helps.

One more Method to sort out.

1. If a duplexer is installed, remove it. If a duplexer is not installed, remove the tray 2 dust cover from the rear of the printer by pulling from the bottom.

2 Remove the rear cover/rear output bin.

3. Rotate the two blue levers on the fuser assembly up to the unlocked position.

4 Pull the fuser assembly straight out of the printer.end chek de fuser.
5. When reinstalling the fuser assembly, be sure the blue levers are initially in the unlocked position.
6 Make sure the fuser assembly is seated fully before rotating the blue levers down into the locked
position.



Hope both informations will solve your problem.

Please have a regular maintenance agreement with local vendors for your printer to get serviced every month.

Best of Luck.


Posted on Jul 21, 2009

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