Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

[usta]

Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

Sihirli silindirden mi bahsediyorsunuz?

yes.

[satins]

Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

Hi guys, we have a lot of Ricoh MP5500/6001/7000/7500 series.


Sometimes they have this problem:
The amount of developer inside the development unit decreases and it's attracted to the drum.
A large quantity of developer also accumulates under the cleaning blade, causing damage to the drum.


Has this happened to any of you? How can it be fixed?
Thank you very much

Try replacing the LED array that sits on top of drum unit.
Do not use the used one, use new.

[satins]

Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

I use genuine toner/developer, I am just anxious because good luck finding a used good developing unit to replace it if it ever fails!

Yes, anxiety levels are high with a non forgiving customer!
We all go through it once in while,
You could also try to replace the existing set of developer agitator bushing with this one with the seal and of course have provisioning for covering
of registration/feed unit with seals as suggested in this thread.

B0703170

BUSHING CASE: FRONT ASSY:

A2943173

BUSHING SEAL

This part is from Aficio 551/700.
It can increase the life cycle of bushings.
I hope it helps.

[luca72]

Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

Maybe that is why I never had to replace bushings or anything else even though I had machines go over 5M before being traded in. And continue to work at another placement. Always used Genuine Ricoh and always did PMs within 5 % over recommended. Now the conductive bearing in the drum shaft holder were another thing. Replaced a couple of holders until some one posted the part number for the bearing here on CTN.

I tried in the past as a test, to put very hard grease, inside the new bush before mounting it, to trap the developer.

problems I have not had....but I can not say that it is better

[orestesp]

Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

If you are using the genuine toner,you may not need to change the bushings or anything else.
However, if you use Compatible toner you may need to replace the developer agitator bushing every 200k-400k cycle and the worst case scenario can have a spillover effect on the paper registration and feeding unit down below.
So, be careful with the compatible toner!

Maybe that is why I never had to replace bushings or anything else even though I had machines go over 5M before being traded in. And continue to work at another placement. Always used Genuine Ricoh and always did PMs within 5 % over recommended. Now the conductive bearing in the drum shaft holder were another thing. Replaced a couple of holders until some one posted the part number for the bearing here on CTN.

I use genuine toner/developer, I am just anxious because good luck finding a used good developing unit to replace it if it ever fails!

[KeviM]

Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

We found that the problem was solved when the developer unit changed the magnet, we had the same problem before.

Are you referring to the mag-roller?

[usta]

Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

We found that the problem was solved when the developer unit changed the magnet, we had the same problem before.

[slimslob]

Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

If you are using the genuine toner,you may not need to change the bushings or anything else.
However, if you use Compatible toner you may need to replace the developer agitator bushing every 200k-400k cycle and the worst case scenario can have a spillover effect on the paper registration and feeding unit down below.
So, be careful with the compatible toner!

Maybe that is why I never had to replace bushings or anything else even though I had machines go over 5M before being traded in. And continue to work at another placement. Always used Genuine Ricoh and always did PMs within 5 % over recommended. Now the conductive bearing in the drum shaft holder were another thing. Replaced a couple of holders until some one posted the part number for the bearing here on CTN.

[satins]

Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

Sorry to "hijack" the thread, so to speak, but what parts that can be ordered from Ricoh do you guys, from experience, replace preventatively in order to keep the developing unit functioning for as long as possible and prevent the spillage of developer everywhere?

I have heard that the all 4 x 8mm bushings should be replaced every other developer change (assuming they are done at 350-400k), is there anything else?

If you are using the genuine toner,you may not need to change the bushings or anything else.
However, if you use Compatible toner you may need to replace the developer agitator bushing every 200k-400k cycle and the worst case scenario can have a spillover effect on the paper registration and feeding unit down below.
So, be careful with the compatible toner!

[orestesp]

Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

Sorry to "hijack" the thread, so to speak, but what parts that can be ordered from Ricoh do you guys, from experience, replace preventatively in order to keep the developing unit functioning for as long as possible and prevent the spillage of developer everywhere?

I have heard that the all 4 x 8mm bushings should be replaced every other developer change (assuming they are done at 350-400k), is there anything else?

[satins]

Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

It will be a good option to replace the development module and
you could also look to replace the LED array that sits on top of drum in the drum unit.


B234 2270 LED Array

Thanks

[Codex]

Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

True! After 800k prints,
this problem can occur, I have found that it happens from model 9000 upwards, perhaps the material of the bushings yields as the speed of the machine increases (?)
Infact, i put a cover over the station zone, with a short strip of magnetic adesive cuttable, that catch and keep the falled developer, and protect the espensive martini pick up station.

[ATTACH=CONFIG]52296[/ATTACH] [ATTACH=CONFIG]52296[/ATTACH] [ATTACH=CONFIG]52297[/ATTACH]

we had the same problem years ago, and we did exact the same!!

[Gift]

Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

True! After 800k prints,
this problem can occur, I have found that it happens from model 9000 upwards, perhaps the material of the bushings yields as the speed of the machine increases (?)
Infact, i put a cover over the station zone, with a short strip of magnetic adesive cuttable, that catch and keep the falled developer, and protect the espensive martini pick up station.

[ATTACH=CONFIG]52296[/ATTACH] [ATTACH=CONFIG]52296[/ATTACH] [ATTACH=CONFIG]52297[/ATTACH]

Another Luca Mod, very nice^^ We're going to test your jogger roller mod tomorrow with a SR3210 btw

[emiliorsg]

Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

True! After 800k prints,
this problem can occur, I have found that it happens from model 9000 upwards, perhaps the material of the bushings yields as the speed of the machine increases (?)
Infact, i put a cover over the station zone, with a short strip of magnetic adesive cuttable, that catch and keep the falled developer, and protect the espensive martini pick up station.

[ATTACH=CONFIG]52296[/ATTACH] [ATTACH=CONFIG]52296[/ATTACH] [ATTACH=CONFIG]52297[/ATTACH]

I think all do it too.
I would try to change the seals of the PCU and the cleaning brush.

[luca72]

Re: Drum damaged by developer on Ricoh MP5500/6001/7000/7500 etc series

With those all being older models, you most likely have excessively worn shaft seals. They probably also have had problems with developer/toner getting on the first feed module. In fact I have a feeling that you have already had to replace one-way gears on the feed module as a result of paper jamming.

True! After 800k prints,
this problem can occur, I have found that it happens from model 9000 upwards, perhaps the material of the bushings yields as the speed of the machine increases (?)
Infact, i put a cover over the station zone, with a short strip of magnetic adesive cuttable, that catch and keep the falled developer, and protect the espensive martini pick up station.

IMG_20210621_155348.jpg IMG_20210621_155348.jpg IMG_20210621_155152.jpg