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cristian
05-02-2013, 07:43 PM
Thought that I have solve my problem with an Minolta Bizhub 750, but unfortunatelly, the image problem is still here...
So what i have done >
- Replaced : drum, developer, cleaning blade, transfer corotron wires.
-Washed and cleaned : fixing corotron
-Cleaned: sensors under the drum
For a double side copy: the first face is acceptable, but the second half of the verso is poorly covered with toner, with white spots .
The problem appear before the fuser entrance also at copies and prints.
I have made some excelent copies with the whole drum ansamble on another machine. I suppose that the problem is on the fixing corotron, but i have also made some copies on my machine with some another corotron, and the problem is 80 % maintained, the copy is improved with 20% but white area is still visible.. What i know for sure is that the machine has the DC power supply DCPS1 changed...
Has anyone encounter such a problem ?

cristian
05-02-2013, 08:19 PM
I put also the photos for the 1 and 2 face of the paper and the way out
2061020611

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05-02-2013, 09:37 PM
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mastafa
05-03-2013, 12:57 AM
I put also the photos for the 1 and 2 face of the paper and the way out
2061020611

i would look at your t/s unit, there a mylar underneath guide of transfer part, and check hv wires for same unit.

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