MP4000 ligth copy

**YHEL23** · 01-06-2009

Hi to all,

After 100k copy become blurred copy but after i force toner the copy fine in 5k only..I already cleaned the drum unit assy.

Any idea on this...thanks and happy new year to all..

**mikeezoz** · 01-06-2009

Originally Posted by YHEL23

Hi to all,

After 100k copy become blurred copy but after i force toner the copy fine in 5k only..I already cleaned the drum unit assy.

Any idea on this...thanks and happy new year to all..

Hello YHEL23, have you tried cleaning the mirrors in the scanner assembly?

**Shadow1** · 01-06-2009

Sounds like the typical toner problems with these machines - definately change the developer, sometimes the entire developer assy has to be replaced before it will run (sort of) correctly.

**FRIDGEMAGNET** · 01-06-2009

Hot off the press
There is now a new dev unit available that they say helps to prevent the toner sticking to the mag roller.
D009 2301

**YHEL23** · 01-07-2009

Also cleaned all the optic unit.PM for the Developer is 320k.

**3bok3bok68** · 01-07-2009

Did you tried to clean the Lazer Unit? if yes change the new developer and performed the initialization of new developer.

**YHEL23** · 01-07-2009

Originally Posted by 3bok3bok68

Did you tried to clean the Lazer Unit? if yes change the new developer and performed the initialization of new developer.

Hi 3bok3bok68,

My client only make 100k copies and the developer can copy unto 320k copies.If i force toner the copy become fine for 5k only.....

**rthonpm** · 01-07-2009

It's not unusual to have to replace developer on this model well before the PM limit. There is an issue with this model with toner sticking to the mag roller and throwing off the settings. Ricoh has put out several bulletins on this issue. Also check your drum ground. Anything higher than 5 ohms and you should replace that as well.
Start with developer though, also make sure your customer is using the correct toner.

**Shadow1** · 01-07-2009

Never seen one of these make it to PM on the developer yet. The new assembly helps, but it's not a fix. 100k seems to be the limit before it barfs, but I've been told some accounts only got 15k...