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Re: lines priniting on copies
This problem happens with the PCU unit. Depending on the the usage of the Printer Control Unit it can be covered under warranty. This is a typical problem with these printers. Contact Ricoh for a replacement.
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Hi, thin black lines are most likely (but not definitely) caused by something in the black PCU (photoconductor unit), either the drum or the charger. Replacing the black PCU will likely get rid of your lines. The Ricoh code for a black PCU if you don't already have one is 402448.
Fuser hot belt has wear lines transfering to the page
Black pcu needs to be replaced
Transfer unit is not being cleaned properly and needs to be replaced.
Remove each of these assy and inspect them for wear or lines that corespond to the lines on your prints.
Depending on the age of the model, it could be a couple of things. ***Never touch the drum or expose it to bright light*** The drum unit is bad. It's the shiny brightly-colored large roller in the center of the machine. On most recent smaller machines like this on it's integrated into the toner cartridge. Check it out. If it has toner build up on the ends, it's bad. or The corona wires need cleaning. Some machines have a small slide that moves from one side of the printer to the other which cleans the hidden corona wires. It's usually brightly colored.
The corona wires are also integrated into the toner cartridge in many smaller machines
I don't think it is anything to do with the toner cartridge as this doesn't put the toner on the page seems to me that the drum unit is faulty either the cleaning blade has failed or the charge roller. Best thing to do is call a service engineer or copier company that deal with Richo or Rex Rotary.