MP 9002 Dusting

[Imprestik]

Re: MP 9002 Dusting

I don't understand why everyone is having so many issues with these devices. I look after at least 50 of these MP9002 machines and absolutely think they are a excellent machine. I don't get toner scattering like a lot of you are having.

My personal opinion is you are not servicing the devices correctly. The PM schedule I use is on the drum, charge, transfer, dev and filters is at 600K, I usually rebuild the entire fuser after 750K as they just go and go and go.

These devices require airflow, the more the better, so I bet if you guys are not replacing any of the filters, specifically the intake filter, the cavity of the device is extremely hot, the humidity sensors are picking this up and adding more toner/over toning which is most likely the cause of your issue. Please make sure you replace the ozone filter as well cause if that gets blocked up, well your just adding to the issue.

I also find scrubbing the mag rollers with a copper brush works the best, give the mag rollers a good scrub as well, shine them up.

Also I do change the entire dev unit and toner hopper after 2 million copies. If you leave them in all the sponge peels off the hopper and the seals on the dev unit blow out and drops dev down the back of the device which end up taking out your feed stations.

[zed255]

Re: MP 9002 Dusting

I'm not convinced it is a servicing issue as we get these dumping toner right from day one, brand new and can't even make it to its first service. I have been working with a couple co-workers on this and are making some headway, but have not gotten through to a full cure.

[impetus73]

Re: MP 9002 Dusting

Ricoh....Innovators in hole punch technology. Why have chads drop into a container when you can design a conveyor belt to move em. What a great idea especially if it didn't clog up all time.

I call this; "The confetti production line" unit :-D

[Codex]

Re: MP 9002 Dusting

Hello Guys

I write from Europe
We have the same issue with our machines from the Aficio 1075 to MP 8000, poor copy quality, even with machines with new developer, streaks in the morning that seems to be a humidity problem, all machines have the Ricoh Original Type 9002 toner,we fight since two or thre months with this problem, i called Ricoh a lot of times and the answer first was " it only happend to you" or " No one else had this problem".........Now the answer changed to " a lot of techs called us with the same problem".They told me they passed the problem to Ricoh Japan, our type 9002 toner is "Made in France"

[rustydog]

Re: MP 9002 Dusting

Yep, the developer is garbage, ricoh knows it but doesn't seem to care, sucks to be doing 100k (or less) PM's on a supposed 500k dev life. This model started life several generations ago as a 45-60 cpm machine and they bumped it up to 90 cpm and it can't take it, piece of junk. It will be the last ricoh my customers buy.

[anothertech]

Re: MP 9002 Dusting

Yep, the developer is garbage, ricoh knows it but doesn't seem to care, sucks to be doing 100k (or less) PM's on a supposed 500k dev life. This model started life several generations ago as a 45-60 cpm machine and they bumped it up to 90 cpm and it can't take it, piece of junk. It will be the last ricoh my customers buy.

We have been saying that too, probably the last Ricoh these customers will buy.
Between these models and the MPC6501's, we will lose many.

[MStalkfleet]

Re: MP 9002 Dusting

Nice to see that I am not the only one having this issue. I have two MP 6002's that are doing this. Almost like clockwork every two weeks I have to go clean the laser shield glass on one of them because there is so much toner dusting on it. Am getting ready to do a PM on it because it is due for it. Have already changed the developer and cleaned the mag roller on the other one and seem to be getting a longer stretch on it so far but still am getting calls for fade especially at the top of the page.

[slimslob]

Re: MP 9002 Dusting

There have been at least 3 part numbers for the drum cleaning brush: B065 2347, AD04 2038 and B247 2330. Be sure that the ones you are getting are the B247 ones. Also, to reduce toner dropping on the ID sensor, which can leas to toner hazing, replace the cleaning entrance seal before the 1M mark. There also seals on the development unit that might need to be replaced. The classification unit on the toner unit must be replace at 600K or you are asking for trouble. the classification unit on the 9002 only is different. Use the correct part. Check the pressure release tube for clogging. If present, replace the tube.

[Lagonda]

Re: MP 9002 Dusting

We prefer to change the waste toner classification / recycle unit at the 350k PM as by the time the 600k recommended PM comes around the brush inside has turned into a lump of coal.
Also like to change the toner delivery hoppers around the 1 mil mark as the seals on the delivery roller are past their best and leak toner into the dev.

[impetus73]

Re: MP 9002 Dusting

Also, dusting increases when the air is too dry. When I have problems with dusting, I install a moisturizer machine to get the humidity up to around 30-40%

[CableGuy]

Re: MP 9002 Dusting

Hi. Just created a thread about one of these and their dirty habits. I replaced the drum shaft and bracket because the continuity between the Shaft and the earthing plate was pretty much non existent due to wear. All I did when starting it up again was to run the 'Automatic adjustment of drum condition' and the run around 400 pages through it and the Print Quality came back. I'll find out over the next few weeks if it sorts the dusting problem, but I'm hopeful.

[slimslob]

Re: MP 9002 Dusting

Hi. Just created a thread about one of these and their dirty habits. I replaced the drum shaft and bracket because the continuity between the Shaft and the earthing plate was pretty much non existent due to wear. All I did when starting it up again was to run the 'Automatic adjustment of drum condition' and the run around 400 pages through it and the Print Quality came back. I'll find out over the next few weeks if it sorts the dusting problem, but I'm hopeful.

Most likely you did not need to replace the drum shaft. The problem is caused by the conductive bearing in the bracket losing its conductivity. Would be nice if Ricoh sold just the bearing.

Quick fix in the field is to mount a piece of a paper clip under the screw for the electrode plate and position it to ride on the drum shaft. Gives you time to order a new bracket.