Bizhub Pro 5501

[radu]

Dear firends,

I've been checking this machine quite a few times by now, and it used to work fine until one day when it started to print
like in the documents attached to this post. It's quite strange and I admit I haven't seen anything like this so far.
I don't have the slightest ideea what it could be causing this image error.
I can only say that:

- no errors are coming - machine is printing or copying without any sort of error.
- auto gamma sdjustments and calibration don't come with errors
- testing the laser with state confirmation did not come NG. (the laser values from the bracodes labels are entered correctly in the LD area)
- If I jam the process, the image is like this (like in the samples) when it reaches the transfer...
- I have checked for visual damage on the harnesses and I did disconnect and reconnect most of the motherboard wires/laser with no impact on image output.

The first 2 prints are from list output
The last 2 from test pattern....

Please if you have any ideea of what it could be ...let me know. Any help is appreciated!
Thank you,
Radu

[jotunn]

I would check Memory Control Board Assy or Image Processing Board Assy.