Re: Mp 9000 dirty copies, only leading edge
Are you running original toner in this thing?
Are you running original toner in this thing?
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It's 106 miles to Chicago. We've got a full tank of gas, half a pack of cigarettes, it's dark and we're wearing sunglasses.
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Re: Mp 9000 dirty copies, only leading edge
Yes only original tonerMemento Audere SemperComment
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Re: Mp 9000 dirty copies, only leading edge
3M prints & i didn't see where you replaced the developer unit? The filters are critical on the higher speed machines also!Comment
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Re: Mp 9000 dirty copies, only leading edge
The filters are new.... I never replaced the development unit...Memento Audere SemperComment
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Re: Mp 9000 dirty copies, only leading edge
I saw that you replaced the collection bottle and the suction pump, but have you replaced the tubing from the development unit to the suction pump. They have a white Teflon coating on the inside that eventually wears away. If the coating has worn toner will stick to the inside wall of the tube and create a blockage. This will in turn cause toner hazing from the development unit as pressure builds up.
I don't know if I mentioned this before, but if the customer is using a booklet finisher, multi-fold unit or any other finishing option where the 9000 has to wait for the finishing option to complete before starting the next set, the development unit sits there spinning while waiting. This will contribute to excessive toner gassing.Comment
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Re: Mp 9000 dirty copies, only leading edge
I'll check the tubes on Monday, thx. Hes they have a booklet finiher but they didn't use the booklet options... They print only booksMemento Audere SemperComment
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Re: Mp 9000 dirty copies, only leading edge
If by printing only books you are referring to the GB5000 Perfect Binder, the 9000 has to pause while the signature stack is moved from the sub grip to the main grip and the cover sheet is fed. If the page count of the book is not sufficient for the gluing and trimming to complete before the complete next book has finished entering the sub grip an additional pause is created. It is during these pauses that additional toner hazing can occur.Comment
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Re: Mp 9000 dirty copies, only leading edge
They print books without the binMemento Audere SemperComment
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Re: Mp 9000 dirty copies, only leading edge
I would suggest to test good working development unit your machine Sir... doctor blade may tend to have a higher gap in a long run or your lower mag roller at dev unit had weaken causing excess toner. The bias is also applied to the lower casing to prevent toner from being attracted back from the drum.fix the customer first then fix the machine... its simple and makes life more easy.
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Re: Mp 9000 dirty copies, only leading edge
check your cleaning unit maybe its hard to rotate, or check your developing unit shafting MAYBE YOUR DV SHAFTING IS WORN OUT. AND CLEAN all the filters near the drum unit and fusing unit.
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Re: Mp 9000 dirty copies, only leading edge
toner dusting on the big bertha....
check and clean filter at back of machine as well as filter beside the fusing unit...
i had a 8001 and dropping the voltage on dev was a good cure for low volume acct helped prevent that little dust cloud forming inside the machine...
clean or replace dev filters now remember if you swapped a new assembly in it doesn't come with filter and filter plates that will cause immediate dustingComment
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