Question about HP LaserJet 4 plus Printer
My HP Laserjet 4+ prints with grey lines. What is the problem?
I am using an HP LaserJet 4 and there is a little brush attached to the left side of the printer. I used that to clean the little "teeth" mechanism behind the sponge roller. I also cleaned the sponge roller and got rid of the gray lines for now.
Posted on May 16, 2008
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Posted on Jan 02, 2017
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