Put new toner cartridge in my Pc170. now all copies come out black.

SOURCE: Photocopier 7013

Hi,
You must reset in his menu! Go in setup menu or status menu and there must be reset Drum unit!!! But it's not the same cartridge and drum unit!!! It's separate part's!!! Give me exactly message!!
Good luck!

SOURCE: xerox 5305 copier excess toner

sounds like faulty drum cleaning blade,which is usually contained in the replacement drum module.I would be inclined to take the drum unit back where you got it (unless you replaced it with a second-hand one) 99% certain the problem is contained in that module

SOURCE: Black pages when printing

Are the lamps comming on, and on brightly? They may need replaced.
You may also have a bad ground contact to your drum cartridge.
Remove the cartridge and clean the contacts. The ground contact may also be worn out.
Those are the 2 most common problem with black copies on that machine

SOURCE: Sharp AL-1631 coper - toner problem

the problem in your machine is on the drum unit there is a arching on the mc unit.located in the upper portion of the drum unit.if you have an old drum unit try to install it again just for testing.and check if ther is a dumping toner again.

SOURCE: My Canon PC-25 copier is streaking

Toner cartridge is defective - replace it