Question about HP LaserJet 4 plus Printer

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Paper jam laserjet 4

Printer will run a sheet or two through then it will jam, crumpling the bottom of the paper. Sometimes we can pull it out of the finished bin, sometimes we need to open the back.

Up to this point, printer has performed flawlesly. Any suggestions.

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  • 148 Answers

The rollers and guide on the back need to be cleaned and lubed. On the rubber rollers use a mild cleaning solution, on the bearings use a light oil and on the black plastic rollers you will see post that sticks out from the center of the roller here you will want to use a light grease (lithium).

Hope that helps...

Posted on Jun 18, 2008

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Posted on Jan 02, 2017

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