Ricoh Aficio 450, back side of the copy is dirty?

[m_donakov]

Hi every one, i am new to this forum.
I have old copier Ricoh Aficio 450, i want to work with them agean. I have a probelm. When i try to copy/print 1-slide copy then the copy is ok, but put when i tray duplex print/copy back side of the copy is dirty, also when i open right cover there is a litle toner on the OPC drum it isnt 100% clean.

- i changed OPC drum and cleaning blade and the problem is here agean, a dont think that is charge roller problem becouse if charge roller not ok than first side of the copy will be dirty too, t tested that when i put out tonner botle anf copy onli with toner that is in the developer copy is ok, when i put back toner agean same problem, i dont know what to do

Please
any solution
Regrads
Mile

[Jomama46]

Take the cover off of the duplex unit and clean it out.

[m_donakov]

But when toner is out of the copier thats not hapend? and why is that toner on OPC drum i think that OPC shoud be clean

[m_donakov]

i thouoght is there any service setting that i shoud change?

[Jomama46]

I think you should call a tech

[Fearless V K]

The toner on the drum is most likely being caused by worn out developer, bad drum ground, toner buildup on the mag roller, or all of the above.

[samiranbairagya]

Is the problem same (i.e. dirty background on the reverse side), when you are taking single side in multi copy mode ?

[ccchuah]

back side dirty

Mostly is the transfer belt and blade are giving problem.

[mikadonovan]

x2 I think what he is saying is that when he uses the bypass he is getting toner on the back side. The solution for that is to vacuum the hell out of the paper path, reg area and the inside of the machine. These machines are pigs, so change developer, clean or replace the mag roller

The toner on the drum is most likely being caused by worn out developer, bad drum ground, toner buildup on the mag roller, or all of the above.

[thebigmaster]

Mostly is the transfer belt and blade are giving problem.

right ...this reason is the most
the transfer unit want to maintenance or change the blade

[Fearless V K]

When the transfer unit is the problem, you usually see dirty backsides on single sided copies as well.

[mikadonovan]

That's a fact.

[thebigmaster]

sorry man

[QUOTE=m_donakov;119110 t tested that when i put out tonner botle anf copy onli with toner that is in the developer copy is ok, when i put back toner agean same problem, i dont know what to do

[/QUOTE]

when you take some copies without the toner bottle the copy is well and when you put back the bottle the problem shows again???
then change the toner bottle

[samiranbairagya]

It seems due to overtoning, the transfer roller is getting dirty & problem starts. Please replace the toner bottle first, if it will not solve the problem, you can check the machine performance by replacing TD sensor. Please share the progress.

[m_donakov]

Problem Solved

I take out toner bottle, emty toner inside clean well, bottle and bottle holder too. After that i copy 100 copies without tonner so developer become empty, after that clean developer fine, then i put toner back and i do
- developer initalization, i cant remeber what code was
and TD senzor initalization SP 3001-2
and that sloves problem

thanks for your replays