Ricoh MP6000SP

[Shark]

[Iommanxman]

I am having a similar problem on an MP5000. Wonder if they have a faulty batch of Dev?

[mjmanu]

Background on copies

hi

please check the magnetic rollers, in many cases I found dirty mag rollers can make this problem. light copies with background.try this ,cheers

[Iommanxman]

hi

please check the magnetic rollers, in many cases I found dirty mag rollers can make this problem. light copies with background.try this ,cheers

This is true, however the machine's that we have in the field have been doing this since install.

[tulipano]

[jwcheek]

Have you checked your drum ground. Have had several that was not making a good connection. Installed a old ft6655 dum ground and installed new devo, and have had good cq for the last 200k.

[tcs04]

Have you checked your drum ground. Have had several that was not making a good connection. Installed a old ft6655 dum ground and installed new devo, and have had good cq for the last 200k.

Good call.... 75%+ that's the problem. If the resistance between the shaft and the "earth" contact is more that a few ohms it will screw up the process control.