Laser Jet printer leaving black streaks on printed pages

MattV1 · ‎10-08-2019

My laser Jet printer has started to leave black streaks down the side of the page when it prints. I have tried using the cleaning junction but it still leaves streaks. Anyone know how to rectify. Its only just over a year old!!

Repairatrooper · ‎10-08-2019

Can you post a sample? Could be cartridge, remove the black cartridge and look at the blue roller on the bottom, it should be clean with no residue on it. If there is debris then cartridge is probably bad. May be a problem with the transfer belt. Remove all cartridges and look at the Mylar belt in the cavity where cartridge drawer slides in. It should have no toner on it. If it does then check for paper stuck may be smearing toner. Or the toner waste bin could be full and toner is backing out onto the belt. Last possibility is a failed fuser. These are pretty hard to see on this model.

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