Question about HP LaserJet 2840 Printer
Just installed new image drum and the first page was fine, but the second page printed the first page in the background (but lighter). What can I do?
That is called ghosting. This is typically caused by a worn or fatigued component inside the imaging drum unit called the primary charge roller (PCR). It is a small black rubber roller. If you are careful and confident you can clean this yourself, otherwise the drum unit needs replacing.
Please read in full before attempting.
!Do not touch the imaging components with your hands or allow any foreign matter (i.e. grease) to touch them either!
To clean the PCR you have you remove it from the drum. It is held in place above the actual imaging drum, just above the drum shutter. On either side you will see two screws down in the cartridge that need to be removed. Once they are out you simply retract the imaging drum shutter and remove the plastic bar above the drum. The PCR is attached to this plastic bar. I would recommend cleaning the PCR in place so as to not disrupt the conductive lubricate that should be in place. Use a lightly dampened, with ONLY steam distilled water, lint free cloth and gently wipe and grime off. Repeat with a clean section of cloth until the PCR is an even dark color. COMPLETELY DRY BEFORE RE-INSTALLATION. Installation is the opposite of removal, a magnetic tipped screwdriver will help. Good luck and email with any questions.
Posted on Jan 14, 2010
Need to replace the drive gear assy.
if you are a printer tech. would be easy but if not then take it to a printer replace shop.
Posted on Oct 03, 2009
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Posted on Jan 02, 2017
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