[CQ] Ricoh aficio MP4000b dirty copies and backside very dirty

[bejoyjohn]

Hi
backside of the copy very very dirty. Can see a lot of toner getting accumulated on the transfer belt and also on drum. I cleaned the drum unit but to no avail. Transfer belt seems to be not moving ,is it possible and what to do ?please help

[rsyarcia]

Re: Ricoh aficio MP4000b dirty copies and backside very dirty

are you using orig toner? how's the counter? maybe need parts replacement.

[Tecnicopia]

Re: Ricoh aficio MP4000b dirty copies and backside very dirty

Transfer Belt can be clogged. The back side of xfer belt is a waste toner bottle. Open and vacuum It. Rotate by hand the belt, when they're a lot of time stopped, get sticked to the rollers.

If this doesn't work, change the part.

Hi
backside of the copy very very dirty. Can see a lot of toner getting accumulated on the transfer belt and also on drum. I cleaned the drum unit but to no avail. Transfer belt seems to be not moving ,is it possible and what to do ?please help

Enviado desde mi Redmi 4X mediante Tapatalk

[8T2]

Re: Ricoh aficio MP4000b dirty copies and backside very dirty

I've had a few where the transfer belt drive gear has disappeared... presumably users manage to lose them while removing a jam.

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[Phil B.]

Re: Ricoh aficio MP4000b dirty copies and backside very dirty

as others have asked... life/page count on consumables?

dirty backside can also be fuser.

is inside clean?

"stop test"? image or smears on belt like you see on page? what about on PCU's? ( post examples )

again so many questions and soooo little info.

[slimslob]

Re: Ricoh aficio MP4000b dirty copies and backside very dirty

This model and the 5000, its predecessors and subsequent models are well known for crappy copy quality. Ricoh has changed toner manufacturers in the past because of the problem. Quick check, look at the development roller. If the roller is coated black, not just toner that wipes off easily with a soft cloth but a film that has to be scrubbed off with a copper bristle brush or a scratchy pad. To correct it you need to first have in your possession Genuine Ricoh developer and toner.

Dump the development unit. Scrub the costing off the roller completely. Some also recommend coating the roller with a metal polish. Now clean all toner and residue from the pcu to include the toner recycle system and the toner hopper. If there is any toner residue in the waste toner/transfer belt unit, clean it as well.

Once all old toner is gone you're ready to put back together using Genuine Ricoh supplies and toner.

[sturmtrooper]

Re: Ricoh aficio MP4000b dirty copies and backside very dirty

This model and the 5000, its predecessors and subsequent models are well known for crappy copy quality. Ricoh has changed toner manufacturers in the past because of the problem. Quick check, look at the development roller. If the roller is coated black, not just toner that wipes off easily with a soft cloth but a film that has to be scrubbed off with a copper bristle brush or a scratchy pad. To correct it you need to first have in your possession Genuine Ricoh developer and toner.

Dump the development unit. Scrub the costing off the roller completely. Some also recommend coating the roller with a metal polish. Now clean all toner and residue from the pcu to include the toner recycle system and the toner hopper. If there is any toner residue in the waste toner/transfer belt unit, clean it as well.

Once all old toner is gone you're ready to put back together using Genuine Ricoh supplies and toner.

Having dealt with many of these I can sadly attest that this is the ONLY mostly sure way to get the machine running cleanly. Even then if the machine is underused it may well go to crap again.

These things are the devil spawn.

[Mark Bbb]

Re: Ricoh aficio MP4000b dirty copies and backside very dirty

if you replace the develoment fliters at approx. 90K, it will last longer...

[8T2]

Re: Ricoh aficio MP4000b dirty copies and backside very dirty

Having dealt with many of these I can sadly attest that this is the ONLY mostly sure way to get the machine running cleanly. Even then if the machine is underused it may well go to crap again.

These things are the devil spawn.

I actually really like these machines. Forgot the SP number but SP2 somewhere is P Pattern Setting. Drop that from 100 to 25 and they run like a dream even when printing small jobs

Provided it's up to date with PM's

[sturmtrooper]

Re: Ricoh aficio MP4000b dirty copies and backside very dirty

I actually really like these machines. Forgot the SP number but SP2 somewhere is P Pattern Setting. Drop that from 100 to 25 and they run like a dream even when printing small jobs

Provided it's up to date with PM's

You'd be running process control patterns 4 times as often which would consume some toner. Probably why it works better. These and the larger machines like the MP6002 really do NOT like to be underused, especially in the coverage department.

[slimslob]

Re: Ricoh aficio MP4000b dirty copies and backside very dirty

I actually really like these machines. Forgot the SP number but SP2 somewhere is P Pattern Setting. Drop that from 100 to 25 and they run like a dream even when printing small jobs

Provided it's up to date with PM's

And let them get one bottle of crap toner and your quality can go all over the ballpark. Under toned one day and over toned a couple of hours later. No matter what you do you can't fix it until you get all that toner out .

[FrohnB]

Re: Ricoh aficio MP4000b dirty copies and backside very dirty

Remove transfer unit from machine. Remove Transfer belt from unit. Take out three screws that hold cover on transfer unit. Vacuum out the transfer unit waste toner. Put back together and back into machine. This should take care of toner on backside of copies/prints. If you have background on the front also, then I would do what a couple techs on here suggested, and clean the mag roller in Dev. Unit, replace developer, and while you're at it, just replace the drum and blade.

**Note** - If the machine has been sitting long enough, the transfer belt can stick to the rollers in transfer unit. Have not seen it on this machine, but have seen it on earlier models that have sat in our graveyard for a long time. If it is seized/stuck on the rollers, then you'll have to replace transfer belt too and clean the roller/s.

[slimslob]

Re: Ricoh aficio MP4000b dirty copies and backside very dirty

Remove transfer unit from machine. Remove Transfer belt from unit. Take out three screws that hold cover on transfer unit. Vacuum out the transfer unit waste toner. Put back together and back into machine. This should take care of toner on backside of copies/prints. If you have background on the front also, then I would do what a couple techs on here suggested, and clean the mag roller in Dev. Unit, replace developer, and while you're at it, just replace the drum and blade.

Ricoh advises against vacuuming the waste toner box. It can easily blow the waste toner full sensor.

[Imprestik]

Re: Ricoh aficio MP4000b dirty copies and backside very dirty

Don't you guys just use the 8200 maintenance kits when there due for PM???

You get everything in Kit A and B and its a 20 minute PM even if the machine is dirty

Surely you don't rebuild everything.......

[8T2]

Re: Ricoh aficio MP4000b dirty copies and backside very dirty

Don't you guys just use the 8200 maintenance kits when there due for PM???

You get everything in Kit A and B and its a 20 minute PM even if the machine is dirty

Surely you don't rebuild everything.......

Yup we rebuild over here...cutting costs I guess

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