I would appreciate any help on this one. I got a call from a fellow tech who has replaced the following: black drum unit, primary transfer belt unit and is still getting washed out and light B/W images whether it's print/copy. I tried different laser unit and no luck. Posible bad primary transfer belt? The B/W image "confidential reporting hotline" was a full color page copied only in B/W. When printing in color the images look decent.
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How was it before? What was the reason for changing the units?
Did you try the old ones one by one to find out which unit has the problem?
Did you open it up to see? Did you carefully clean the belt, the cylinder, and the charge?
It seems like some contact on the black unit is bad. -
If you have a developer unit try exchanging it. Colour copies/prints use composite black which is enhanced by adding the colours to it.Larhal
Retired
If all else fails read the Service Manual!
If that fails, meet me at the pub and we will discuss it.Comment
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hi guys can you help with firmware for canon irc5560 and canon irc5535 please?Comment
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Please check the ITB transfer charge Contact Spring at the back when pulling out ITB unit, sometime that spring contact comes out of position, thus no charge to roller inside the itb belt, some time you can put that spring into position, if not than you many have to take apart whole back of the device to get to the charge contact springComment
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