Xerox wc 7855 makes dirty copies

[Sema]

Hello colleges
I have a machine xerox wc 7855 makes copies with dirty dots at the edges especially when using long edge feed and sometimes the dots reach the center of the copy.
The dots may be of any of the four colors cyan, black,yellow or magenta and it comes worse when you interchange the drum cartridges.

I replace drum cylinders(OPC), I serviced the belt assembly, and the entire machine but no change.
Attached a copy indicating the fault.COPY.pdf
I need some help

[Jettdog]

Re: Xerox wc 7855 makes dirty copies

Hello colleges
I have a machine xerox wc 7855 makes copies with dirty dots at the edges especially when using long edge feed and sometimes the dots reach the center of the copy.
The dots may be of any of the four colors cyan, black,yellow or magenta and it comes worse when you interchange the drum cartridges.

I replace drum cylinders(OPC), I serviced the belt assembly, and the entire machine but no change.
Attached a copy indicating the fault.[ATTACH]52447[/ATTACH]
I need some help

Whats the belt cleaner or waste toner box look like? Belt cleaner may be full

[copier tech]

Re: Xerox wc 7855 makes dirty copies

Hello colleges
I have a machine xerox wc 7855 makes copies with dirty dots at the edges especially when using long edge feed and sometimes the dots reach the center of the copy.
The dots may be of any of the four colors cyan, black,yellow or magenta and it comes worse when you interchange the drum cartridges.

I replace drum cylinders(OPC), I serviced the belt assembly, and the entire machine but no change.
Attached a copy indicating the fault.[ATTACH]52447[/ATTACH]
I need some help

Are you using genuine Xerox toner ?

[shinchan]

Re: Xerox wc 7855 makes dirty copies

My guess
you need to replace cyan drum. there are cyan dots
you may need to replace black drum.

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