Bizhub accuriopress c2070

[AhmedChamumi]

Hello everyone,

I have visited a client with AccurioPress C2070 who reported white spots on yellow, I inspected, cleaned charger, wiped the drum upon testing the printer alternatively showed errors C2802, 4661 which all relates to yellow...the printer is refurbished with about 200k clicks, also I have noticed the clients used toner TN627 to refill also there are yellow, cyan and sometimes magenta and black faint banding on both sides of paper and they are more noticeable on thick paper.

Also the black and yellow developers do not coat evenly on the left side of magnetic rollers.

Steps taken,
1. Cleaned IDC sensors
2. Inspected, reseated chargers on transfer belt.
3. Carried out Gamma correction
4. Carried out colour registration auto adjust

I have attached the samples showing the banding.

Your help please, I'm totally stuck.

Regards,

Ahmed Chamumi

[wjurls]

If they are refilling toner with C14000 toner, who knows what other shenanigans they have tried pulling. While the toner may be the same formula. I can't verify it. I would start by replacing all 4 developers and also the transfer belt cleaning blade. Put a fresh full set of the correct toner in it and recalibrate toner density init, gamma, auto color registration, and density balance.
Don't forget to reset the developer counters.