Error code C-8201 Minolta Bizhub 420

[domenico1952]

Can you tell me what it is and what to do?
Could you send me the service manual bizhub 420 dmsc@libero.it
Thanks in advance

[Dominggus]

may be c-2801 not 8201

[domenico1952]

Hi, yes display visualize C-2801.
Tank you

[xmasvn]

check TCR or Printer control board (PRCB) this TCR sensor in developer under this developer maybe die

if the TCR ok check ic301 on top left hand of main board this may be die, use multimeter check it

[tech51]

The developer unit is driven by a toothed belt, sometimes these slacken and cause this code. The belt is behind the main control board in the back of the machine and has an adjuster on it. Also make sure the pins on the developer unit connector are clean as this can also cause error codes. Also see this excerpt from troubleshooting guide. Cheers...

Description
C-2803 (C2803)with poor copy quality/jamming.
Solution
PROBABLE CAUSES:
1.The developer drive belt has fallen off, so the agitator drive gear does not turn.
Reinstall and adjust the tension of the drive belt for the agitator drive gear. If necessary, replace the Developing Drive Pulley-Lower 45t (p/n 50GA 1565 0).
2.TCR output abnormality.
Replace TCR sensor (p/n 26NA 8804 1).

3. TheHV supply unit has failed.
Replace the HV supply unit (p/n 50GA84010).
Note : Developer is also being pulled from the developing unit to the drum.
4. Pulling developer onto the drum andcopies or constant jamming at the registration rollers andconstant failing of the PRCB after it is replaced due toshorted
Toner Addition Solenoid (SD5).A longer screw was inserted for solenoid which shorts the windings in the solenoid. Longer screw inserted when the C-2803
modification is installed or the assembly is removed.
Replace the PRCB (p/n 50GA-9020E), the toner solenoid (p/n 26NA82513) and install shorter screws.

[domenico1952]

Thanks for the technical news that you gave me, the problem is resolved.