View Full Version : bizhub 350 error c2557

11-03-2007, 08:09 PM
hi every one i have error code c2557 in minolta bizhub 350
so if any 1 can help me on it


11-03-2007, 09:15 PM
Did you recently replace the drum but not the developer?

11-05-2007, 07:34 PM
no i dont change any thing
but the toner finshed


11-06-2007, 06:41 PM
Are you sure it's a c350 cant find that code
on a C450 it is:

C2557: Abnormally low toner density detected Black TCR Sensor
Relevant Electrical Parts
TCR Sensor/K (UN10)
Toner Supply Motor C/K (M3)
Control Board (PWB-MC)
MFP Control Board (PWB-MFPC)
Step Action
Control Signal
Location (Electrical
Perform image troubleshooting procedure if
image density is low.

2 M3 operation check PWB-MC PJ8MC-1 to 4 C to D-14
3 Change Imaging Unit.
4 Change PWB-MC
5 Change PWB-MFPC.

11-06-2007, 07:08 PM
Is the machine a C350 or a Bizhub 350? If it is a C350 check the toner cartridge. If the mylar does not peel back properly after the cartridge is inserted the toner won't exit the cartridge. This results in an undertoned imaging unit giving the C2557 (Black). Remove the black cartridge and manually open the cover over the hole where toner is supposed to exit the cartridge. Make sure as the door is openned the mylar peels away allowing the hole to be uncovered. If not, manually peel off the mylar covering the hole and reinstall the cartridge.