Lanier 5222 Sound

[Guest]

I have a Lanier 5222 and just replaced the Drum unit with new developer.
The machine worked great for about a month but now the machine is making a grinding sound inside the machine. I pulled out the drum unit and it looks like the toner maybe got backed up as there is toner around the drum unit and in a couple other spots..

I know there isnt alot of information here but does anyone have any ideas of what the sound could be?

Thanks
Greg

[copyaction]

you should just replace the entire PCU on these, not worth rebuilding.

[DedicMort]

i really dont want to keep spending money on this machine if this isnt the problem is there a way that I can test the drum unit to make sure thats where the sound is coming out? maybe take it out of the machine and let it cycle cause that is where i am hearing the grinding sound.. after the machine warms up..

[DedicMort]

could the sound be coming from the fuser assembly its one of the two..

[techspec]

Remove the fuser assembly and drive the hot roller gear with your thumb, are you getting a clicking noise. If so replace the bearings or either remove the bearings and coat with grease or lubricate with oil or WD40. This is a common fault with this range of machines and Ricoh have a Tech. Bulletin on this. Also on the Drum/Dev. You are better replacing this a full unit as another poster has stated.

[DedicMort]

how fast does the fuser assembly turn?

[techspec]

how fast does the fuser assembly turn?

Quickly checked over the manaul, there is no reference that I can see to fuser speed, but if you remove the fuser and turn the fuser gear by hand you will hear the clicking if that is were it is coming from.

[DedicMort]

i have the fuser in my hand and dont hear the clicking and there is grease on the gears as i can see so i dont think it is this. It had to be the drum assembly. but when i pull the drum apart i dont hear anything and nothing is jammed up.

[techspec]

remove the grease and lub the bearings on both the pressure and hot roller, worth a try ?

[DedicMort]

just tried it and still the grinding sound..
in the drum assembly what do u think could be grinding like that.

could it be the magneto I believe that was the only thing that i didnt try turning as it is covered in toner and developer and i didnt want to hurt anything

[techspec]

If you have previously opened the PCU unit while redeving check the gearing for the stirring rods, maybe they could be seized or dev has got into them.

[techspec]

I have just another forum and this post was on it, maybe of help to you.

Apparantly there are some recycled DMU 23's (PCU 1027) in circulation. I have already had prolems with two units both were causing jamming problems and one was noisy and also causing spotted backgroung.
There is no distinguishing marks on these units but on both units the spring that closes the drum shutter when you open the R/H cover was distorted ( a good indication the unit has been dimantled) and while the shutter works with the unit out of the machine, it doesn't open and close properly when in the machine.
Please inform stock control if you are having problems with these PCU's.

[Fearless V K]

Dude, it's the drum. Gears are shot.

[copytechman]

Agreed, known for gear failures/breakage, auger lockups etc, like others have said, replace the entire drum unit with an new oem one. If the toner add port is backed up likely gears broken/drive. You can turn the mag drive manually to check to see if the toner add auger rotates... if it doesnt, replace the whole unit.. Its toast.
Regards!
A.

[b003ace]

Absolutely Right!

The dev drive gears are stripped. On early models, there was a small plastic plug in the top of the dev unit you could remove to see/check the auger for movement. But Ricoh's infinite intelligence demanded the little hole and plug go away.

Grinding noises are almost always the PCU. The one exception is a broken rib in the bottom of the fuser housing that holds the bearing in place laterally. If it is broken, just order an entire fuser assembly, as the time and glued on parts involved to replace just the housing will cost more.

Much more commonly, the fuser only ticks, from the bearings rocking back and forth on the hot roller. The recommended special Barrierta grease will stop it, but sometimes only for 30 to 45K.