Aficio 2090 / 2105, Dirty at the Bottom after Aprox 50 Copies, see attachment

[mterrero]

Hello, Ricoh Aficio 2105, Dirty at the bottom after aprox 50 Copies.

I haved changed the PCU, Developer Unit, Corona Unit, but Is the same,

I changed the transfer Unit with a old one and the problem start happend On the top too, them I reinstall the original transfer Unit and them the problem is on the bottom

Do you think is a Belt Problem ?

Please see the pictures attached...

Thanks..

[Polarbear]

Are you sure that the transfer cleaning path is not blocked or the coil has failed and used toner is not carried away to the waste bottle, but rather smeared on the page?

[Imprestik]

100% transfer unit

Had this many times on the Bellini, new transfer unit should sort it out

[mterrero]

100% transfer unit

Had this many times on the Bellini, new transfer unit should sort it out

Hello, I install a New Transfer Belt on another transfer unit, the dirty appear after 60 prints, please check the two new pictures attached,

after the dirty appear, if you print one sheet is completly clean without dirty.

I dont have new transfer unit, just used but working units...

[ali.alhaj]

This problem come from Brush roller, brush roller replace with new drum.

[mterrero]

This problem come from Brush roller, brush roller replace with new drum.

Drum Unit, developer unit, Charge corona unit and Transfer Belt with Blade was changed

I think is a electrical problem, after the copies became dirty, if you make one copy, the copy is clean ...

[slimslob]

Drum Unit, developer unit, Charge corona unit and Transfer Belt with Blade was changed

I think is a electrical problem, after the copies became dirty, if you make one copy, the copy is clean ...

A drum cleaning unit that is due for rebuild or replacement will give this symptom. During a multiple copy run, waste toner will build up in the cleaning unit and cause the blade and brush roller to not fully the drum surface.

The other thing that can cause this is the HVPS starting to go flaky. Charge voltage drops slightly as the HVPS heats up form being on constantly. In the time between copy jobs, the HVPS cools back down.

[Codex]

i had the same problem, its the Transfer Belt or the charge roller under the belt....check also the Bias voltage (SP 2201), 550V is normal, try to set it lower.But the best thing is to change the transfer unit

[a-copy]

Hello, Ricoh Aficio 2105, Dirty at the bottom after aprox 50 Copies.

I haved changed the PCU, Developer Unit, Corona Unit, but Is the same,

I changed the transfer Unit with a old one and the problem start happend On the top too, them I reinstall the original transfer Unit and them the problem is on the bottom

Do you think is a Belt Problem ?

Please see the pictures attached...

Thanks..

test with new drum

[mdfurqan2012]

I also face same problem
When I make 10 prints starting 2 prints were clean and after that print becomes dirtier.
I found that opc drum crosses its recommended life.
Issue resolved by replacing new opc drum.