Printer/Cartridge Mismatch Service Check; Flash Full Service Check - Konica Minolta bizhub 4020 Service Manual

4.5.7

Printer/cartridge mismatch service check

Action
Step 1
Check if the toner cartridge is supported.
Replace with a supported toner cartridge if
necessary.
Does the problem remain?
Step 2
1. Make sure the toner cartridge smart
chip contact cable JARW1 is properly
connected to the controller board.
2. Make sure the toner cartridge smart
chip contact is free of debris.
3. Check the toner cartridge smart chip
contact for damaged pins.
Is it free of damage?
Step 3
Check if the firmware level matches the
serial number.
Do they match?
4.5.8

Flash full service check

Action
Step 1
Format the flash memory. Navigate to Settings > Print Settings
> Utilities, then select Format Flash.
Does the error remain?
Step 2
Remove the installed memory, and then POR the machine.
Does the error remain?
Step 3
Replace the controller board. See
Does the error remain?
bizhub 4020/3320 Service Manual
Yes
Go to step 2.
Go to step 3.
Replace the controller
board. See Controller
board removal.
Controller board removal.
- 115 -
No
The problem is solved.
Replace the toner cartridge smart
chip contact. See Toner cartridge
smart chip contact
Reflash the firmware.
Yes
Go to step 2.
Go to step 3.
Contact the next level
of support.
removal.
No
The problem is
solved.
Replace the
memory card.
The problem is
solved.