How to reset xerox 7120 - Xerox WorkCentre M20i All-In-One Laser Printer

Fault Code 092-315: ATC Fail [K] (Black Toner)
https://www.support.xerox.com/en-us/article/en/1244657.html

http://www.copytechnet.com/forums/xerox/121809-xerox-wc-7120-error-code-042-345-a.html

change the developer motor

bonjour j'ai un code erreur sur ma xerox workcenter 7125 je trouve pas de solution si qlq px m'aide merci d'avance code 093-320

i need activation code xerox workcentre 7120

ERROR 093-320

ERROR 92 313

The trick about cleaning out the waste toner container is you have to also swab out the clear plastic piece the optical sensor reads so the device knows the waste toner is full. Clean that out and you should be able to get more than a weeks usage out of the waste toner container.
Hope this helps.

Better off replacing it, if you google it , the price normally is $20 or less. But you can take it out and empty it into a garbage bag, but there is a clear plastic window that must be cleaned to allow it to reset. They are pretty cheap. Google The Parts Drop. Most likely they have them.