Canon imageRUNNER ADVANCE 4045 Trouble Error Codes List page 43

Developing Assembly toner
absent error
E020-
Toner in the Developing
0000
Assembly was empty for 2
minutes.
Error in Developing Toner
E020- Sensor connection detection
0001 The connection detection
port was OFF at power-on.
Error in Buffer Toner Sensor
E020- connection detection
0002 The connection detection
port was OFF at power-on.
43
Motor side: J2107, J3044 (relay), PCB side: J330
(Duplex Driver PCB (PCB4)) 3. Replace the ETB
Disengage Sensor (PS56). 4. Replace the Duplex
Feed Left Motor (M19). 5. Replace the Duplex
Driver PCB (PCB4). 6. Replace the DC Controller
PCB (PCB1). NOTE: Check if the Disengagement
Cam is stained. If necessary, clean it. Check if the
drive system (gear, Motor, one-way) is failed. If
necessary, replace it. Check if the link with the
Fixing Feed Handle is failed. If necessary, replace
it.
1. Check the connection of the Developing Toner
Sensor (TS1). Sensor side: J2133, J3089 (relay),
PCB side: J3088 (relay), J114 (Main Driver PCB
(PCB2)) 2. Check the connection of the Magnet
Roller Clutch (CL5). Sensor side: J2036, J3124
(relay), J3090 (relay) PCB side: J3091(relay),
J115 (Main Driver PCB (PCB2)) 3. Check the
connection of the Toner Feed Motor (M28). Motor
side: J2035, J3124 (relay), J3090 (relay) PCB
side: J3091(relay), J115 (Main Driver PCB
(PCB2)) 4. Check the connection of the Buffer
Toner Sensor (TS3). Sensor side: J2039, J3124
(relay), J3090 (relay) PCB side: J3091(relay),
J115 (Main Driver PCB (PCB2)) 5. Replace the
Developing Toner Sensor (TS1). 6. Replace the
Magnet Roller Clutch (CL5). 7. Replace the Toner
Feed Motor (M28). 8. Replace the Buffer Toner
Sensor (TS3). 9. Replace the Main Driver PCB
(PCB2). 10. Replace the DC Controller PCB
(PCB1).
1. Check the connection of the Developing Toner
Sensor (TS1). Sensor side: J2133, J3089 (relay),
PCB side: J3088 (relay), J114 (Main Driver PCB
(PCB2)) 2. Replace the Developing Toner Sensor
(TS1). 3. Replace the Main Driver PCB (PCB2). 4.
Replace the DC Controller PCB (PCB1).
1. Check the connection of the Buffer Toner
Sensor (TS3). Sensor side: J2039, J3124 (relay),
J3090 (relay) PCB side: J3091 (relay), J115 (Main
Driver PCB (PCB2)) 2. Replace the Buffer Toner
Sensor (TS3). 3. Replace the Main Driver PCB
(PCB2). 4. Replace the DC Controller PCB
(PCB1).