I to have this problem with a B405. The drum, toner, the LVPS, the ESS, the MCU, the HVPS, the auger motor have all been replaced. Still have the issue. Aslo tried a different drum/toner after the HVPS was replaced. verified voltages on the MCU and HVPS boards. I had A servicer(Clearchoicetechnical) come to fix and the tech replaced the laser, but when he left the laser was not install properly and was missing the screws to fastenen it.
They charged me for the repair and won't come back to resolve the issue.
In this case it will be better to have a tech, because it could be a contact problem of BTR (transfer roll) or from the HVPS (High Voltage Power Supply).
Ok I replaced the Drum with another new one and the print is the same, did I miss something?
I really dont want to replace this printer as this is the first ptoblem Ive had with it and I have had it for 6 years.
Please help if you can.
after replacing the fuser unit, drum and toner cartridge the printer is printing too light can barely see the printed text. I have tried replacing the toner cartridge again thinking this might be the problem, but still now working correctly. I keep thinking I missed something. Please any help would be greatly appreciated.
Solved! Go to Solution.