Changing drum blades every ~20K copies becouse it starts jumping and makes thin vertical grey line o every copy ? Have more 55/65/80 copiers and have to change drum blades after every ~150k copies. But this one is crazy.. Any ideas ?
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are you using oem blades?
there is no glory without sacrifice
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Not OEM blades and not OEM toner. But with OEM is the same.Comment
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Found the problem - it was becouse of loose flywheel.Comment
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Thanks for feedback.I'll never ask if I didn't check user manual, service manual, parts list, BSI/TNI/TAD... web, existing threads.Comment
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it could have been not only becouse of flywheel, room temperature was about 10 deg. celsius - in mornings
told to turn and hold heat up 24/7 and no more opened window condicioneering 
becouse copier was standing near it.. Used to go everyday all last week and now 2 days without problem.. Hope i'll return there only for PM. 
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