Ricoh MP 7001 overtoning

[copytrust]

I have remove all the filters from the machine just to be sure before I changed the developer.

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I mean the ozon filter.

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[copytrust]

For a quick test, do you have another development unit to try?
The drum unit is dirty just with toner or is there developer too?
Did you disassemble the development unit when replacing developer?
Check the charge corona, or try with another.
Is SP2208 "0"?

I was thinking about the developer unit because before I changed it I cleaned the magnetic with metal brush, the magnetic was very dirty, and had a brown coat, after 60.000 copies there was again the same thing!!!!

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[Codex]

Is there any way to check the clutch?

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If you opens the right side panel and make an "forced toner supply"..... You can hear the clutch making "click" noises..... And you can see the movement from the right side..... The problem is that often during the work the clutch remains "on"..... This was my case in the Mp6001...... If you have another machine or an Mp7500 (same part number) you can try to change it.

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[eccelobo]

Is there any way to check the clutch?

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Open the door, put an actuator, open the toner hopper to the right and look into the entrance of the toner supply unit. If the transport screw spins at all times, it means that the clutch is activated.

[eccelobo]

I was thinking about the developer unit because before I changed it I cleaned the magnetic with metal brush, the magnetic was very dirty, and had a brown coat, after 60.000 copies there was again the same thing!!!!

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If you try another development unit you would find out faster where to check afterwards

[Coptech]

I vote run SP5990 non default settings and make sure someone hasn't changed the toner add timer settings or even have it on a fixed add setting.

[MIKON]

if it has 2mil or more i would suspect the developer unit.

[copytrust]

if it has 2mil or more i would suspect the developer unit.

The machine has almost 5.000.000 copies.

[copytrust]

I vote run SP5990 non default settings and make sure someone hasn't changed the toner add timer settings or even have it on a fixed add setting.

i was thinking about that, i ll keep that in mind if i dont have anything else to try.