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xpedx102
03-26-2010, 06:32 AM
Any reason why the developer unit on the black would cause the following problem.

No matter the paper stock- if running paper fast- no problems- clean sheets
When running paper slow- get black smearing across half the page. Even on thin stock.

Happens on all paper trays. I know it is the DV unit because I took the unit out and installed on another C6500 and the problem followed.

Developer brand new
177k prints on the machine.

Any thoughts?

kmcopier
03-26-2010, 02:19 PM
Is the black toner recently exchanged?. What is the TC ratio?

xpedx102
03-26-2010, 03:01 PM
On the first machine, no I did not recently change the toner. On the second machine, I did. Sorry, What is TC ratio?

alexstl
03-31-2010, 06:01 AM
have seen this on an our machine, caused by toner clotted in dv unit ( customers uses machine and stock toners pipes in hight umidity and temp environment ).

Solved in this way:

vacumed toner hpopper
changed toner pipe in machine with a new fresh toner
made a lot of bk copies

Hope this helps

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