Oki C910 Troubleshooting Manual page 32

Display Cause
Service Call Waste Toner
929 Transfer Motor
Lock Error
Service Call Sub-CPU Clock
930 Frequency Error
Service Call Duplex CPU
931 Clock Fre-
quency Error
Service Call Inverter CPU
932 Clock Fre-
quency Error
Service Call Trya2 CPU
933 Clock Fre-
quency Error
Service Call Trya3 CPU
934 Clock Fre-
quency Error
Service Call Trya4 CPU
935 Clock Fre-
quency Error
Service Call Trya5 CPU
936 Clock Fre-
quency Error
Service Call Waste Toner
940 Transfer Error
Software not Keychip check
authorized failed
001
Software not Unauthorized
authorized hard disk copy
002
Software not Unauthorized
authorized software
003 configuration
Software not EEPROM
authorized missing
004
Table 7-1-1 Operator Alarm (10/10)
Error Description and Analysis
The waste toner transfer
motor is not operating
properly.
Does the error still occur?
The Sub-CPU clock fre-
quency is not correct.
Does the error still occur?
The duplex CPU clock
frequency is not correct.
Does the error still occur?
The inverter CPU clock
frequency is not correct.
Does the error still occur?
The tray-2 CPU clock fre-
quency is not correct.
Does the error still occur?
The tray-3 CPU clock fre-
quency is not correct.
Does the error still occur?
The tray-4 CPU clock fre-
quency is not correct.
Does the error still occur?
The tray-5 CPU clock fre-
quency is not correct.
Does the error still occur?
The transfer mechanism of
the toner duct for ID is not
operating properly.
Does the error still occur?
ASP PCB KeyChip un-
mounted or KeyChip Error is
detected.
The ASP PCB HDD is not a
standard (official) product.
The ASP PCB HDD program
does not match the destina-
tion.
The ASP PCB EEPROM
unmounted or EEPROM Error
is detected.
Troubleshooting Guide Page 32
Remedy
judgment
Check to confirm that the
waste toner transfer system
is operating properly.
Yes Replace the waste toner
motor.
Check the connection of the
S2M board.
Yes Replace the S2M board.
Check the connection of the
V72-2 board.
Yes Replace the V72-2 board.
Check the connection of the
V72-3 board.
Yes Replace the V72-3 board.
Check the connection of the
V72-1 board of tray 2.
Yes Replace the V72-1 board.
Check the connection of the
V72-1 board of tray 3.
Yes Replace the V72-1 board.
Check the connection of the
V72-1 board of tray 4.
Yes Replace the V72-1 board.
Check the connection of the
V72-1 board of tray 5.
Yes Replace the V72-1 board.
Check to confirm that the
basket assembly is in
position (if it is engaged with
the gear of the printer).
Yes Check to confirm that the
holder magnet D contains a
magnet, and check the
magnetic polarity.
Yes Replace the HAL IC circuit
board.
Yes Replace the duct assembly
toner.
Power OFF/ON
Replace KeyChip
Power OFF/ON
Replace HDD
Power OFF/ON
Replace HDD
Power OFF/ON
Replace EEPROM
600 1200
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓
-
✓
-
✓
-
✓
-