hello there! i have a problem on konica 7033. intermittent vertical lines on copies increases as the copying continue with half high background on copies. I have cleaned mirrors on laser assy , charge/ transfer/separation assy, corona wires, etc. I tried to output internal test prints, still problem occurs. So, i set aside that Scanning is not the problem.
other symptoms is the copy is enlarge or elongated on part. I clean the developer clutch for the suspicion that the developer intermittent slows down.
at first the machine will copy clean. but as you contunue copying vertical lines appears (front to rear).(not lead to trail edge), from few to many until it produces the whole page with line accompanied by high background.
Here is the link for copy samples:
copy sample 1.jpg
copy sample 2.jpg
other symptoms is the copy is enlarge or elongated on part. I clean the developer clutch for the suspicion that the developer intermittent slows down.
at first the machine will copy clean. but as you contunue copying vertical lines appears (front to rear).(not lead to trail edge), from few to many until it produces the whole page with line accompanied by high background.
Here is the link for copy samples:
copy sample 1.jpg
copy sample 2.jpg
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