Maintenance Kit Life Code - Error displayed when kit reaches 200K pages (Install Maint kit and reset in service mode by performing "New release" procedure)


Trouble Code List


0202 Code - Tray 1 feeder up/down abnormality

0204 Code - Tray 2 feeder up/down abnormality

0206 Code - Tray 3 lift up failure

0208 Code -  Tray 4 lift up failure

1109 Code - Stapler motor drive malfunction

2201 Code - Toner cartridge motor rotation failure

2350 Code - Cooling fan error

2564 Code - Black toner toner density sensor failure

2A94 Code - Toner empty sensor error

3423 Code - Fuser warm up trouble

4091 Code - Engine communication error

4501 Code - Laser malfunction

4901 Code - FW/OS integrity verification error

5102 Code - Main motor failure to turn

5501 Code - AC signal abnormality

5601 Code - Engine control malfunction

6751 Code - CCD clamp/gain adjustment failure

6790 Code - AFE offset adjustment failure

6791 Code - AFE register setting error

6792 Code - White reference plate search error

6793 Code - Scanner communication error

7A00 Code - Failed to arrive home

9401 Code - Exposure lamp lighting failure detected

B001 Code - Fax board error 1

B002 Code - Fax board error 2

B003 Code - Fax board error 3

B051 Code - Fax board mount failure line 1

B110 Code - Instance generation error or observer registration error

B111 Code - Configuration space initialization NG

D004 Code - Hard disk access error (connection failure)

D091 Code - Hard disk full error

D092 Code - No hard disk (found during a disk check)

D093 Code - Wrong hard disk (found during a disk check)

D094 Code - Hard disk check disk error

D095 Code - Hard disk recovered (requiring reboot)

D096 Code - Hard disk access fault

D097 Code - Hard disk mount fault

E301 Code - Usually caused by corrupt print jobs or resolved by updating firmware.

F### Code - Abort trouble code. refer to  "K.4. Abort code"


How to Reset Access Lock -  "Locked out of machine due to too many failed attempts to login to Service mode"

​(works on 4050/4750/C3850/C3350 series)

​1. Menu

2. Counter

3. Keypad

4. Press Stop 09317 

​5. wait 5 minutes and lock is released












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Konica Bizhub 4750 Bizhub 4050 Error Codes