Canon imageRUNNER ADVANCE C3330 Series Service Manual page 539

020-02B8-05
Detection Description
Remedy
020-02C8-05
Detection Description
Remedy
020-03A8-05
Detection Description
Remedy
Toner Density Sensor (M) output error
The output value did not exceed 120 although the control voltage of the Toner Density Sensor (M)
in the Developing Unit (M) was increased to 192 or higher, or it did not fall below 120 although the
voltage was decreased to 42 at initialization.
[Related parts]
- Harnesses from the Toner Density Sensor (M) to the DC Controller PCB
1. Toner Density Sensor (M) (UN22/J1051) to Developing Unit (M) (J1041) (Unit of replacement:
CABLE, DEVELOPING)
2. Developing Unit (M) (J1041) to Relay Connector (4P) (Unit of replacement: CABLE, RELAY)
3. Relay Connector (4P) to DC Controller PCB (UN04/J128) (Unit of replacement: CABLE,
SENSOR)
- Developing Unit (M) (Unit of replacement: DEVELOPING ASSEMBLY, M)
- DC Controller PCB (UN04) (Unit of replacement: DC CONTROLLER PCB ASSEMBLY)
[Remedy] Check/replace the related harness/cable, connector and parts.
[Reference] Before replacing the DC Controller PCB, back up the service mode data (approx. 2
min) and restore the backup data after the replacement so the data may be able to be protected.
- Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMBUP
- Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES
Error in take-up of Sealing Member (M)
The patch output value (SigR) failed to be 900 or less during initialization of the Developing Unit
(M).
[Related parts]
- Harnesses from the Registration Patch Sensor Unit to the DC Controller PCB
1. Registration Patch Sensor Unit to Relay Connector (16P) (Unit of replacement: REGISTRATION
SENSOR ASSEMBLY)
2. Relay Connector (16P) to DC Controller PCB (UN04/J120) (Unit of replacement: NEW OLD
SENSING HOLDER ASS'Y)
- Harness between the Secondary Transfer High Voltage PCB (UN03/J501 and J502) and the DC
Controller PCB (UN04/J114 and J112) (Unit of replacement: CABLE, 2ND TRNSFR. H.V. PCB)
- Registration Patch Sensor Unit (Unit of replacement: REGISTRATION SENSOR ASSEMBLY)
- Developing Unit (M) (Unit of replacement: DEVELOPING ASSEMBLY, M)
- Secondary Transfer High Voltage PCB (UN03) (Unit of replacement: 2ND TRANSFER H.V. PCB
ASSEMBLY)
- DC Controller PCB (UN04) (Unit of replacement: DC CONTROLLER PCB ASSEMBLY)
[Remedy] Check/replace the related harness/cable, connector and parts.
[Reference] Before replacing the DC Controller PCB, back up the service mode data (approx. 2
min) and restore the backup data after the replacement so the data may be able to be protected.
- Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMBUP
- Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES
Toner Density Sensor (C) output error
The output value of the Toner Density Sensor (C) in the Developing Unit (C) did not fall within the
range between 38 and 214 for 2 consecutive times during printing.
[Related parts]
- Harnesses from the Toner Density Sensor (C) to the DC Controller PCB
1. Toner Density Sensor (C) (UN23/J1052) to Developing Unit (C) (J1042) (Unit of replacement:
CABLE, DEVELOPING)
2. Developing Unit (C) (J1042) to Relay Connector (4P) (Unit of replacement: CABLE, RELAY)
3. Relay Connector (4P) to DC Controller PCB (UN04/J128) (Unit of replacement: CABLE,
SENSOR)
- Developing Unit (C) (Unit of replacement: DEVELOPING ASSEMBLY, C)
- DC Controller PCB (UN04) (Unit of replacement: DC CONTROLLER PCB ASSEMBLY)
[Remedy] Check/replace the related harness/cable, connector and parts.
[Reference] Before replacing the DC Controller PCB, back up the service mode data (approx. 2
min) and restore the backup data after the replacement so the data may be able to be protected.
- Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMBUP
- Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES
527
7. Error/Jam/Alarm