Remedy: Is the main motor working? (Perform the output check: 03-101/151) ↓→ NO → 1) Check if the connector J581 of the main motor is disconnected. 2) Check if the connector CN336 on the LGC board is disconnected. 3) Check if the connector pins are disconnected or the harnesses are open circuited. 4) Check if the conductor patterns on the main motor board and LGC board are short circuited or open circuited. 5) Replace the main motor. 6) Replace the LGC board. YES 1) Check if the PLL lock signal CN336-8 pin output from the LGC board is always level “L”. 2) Check if the voltage supplied to the ASIC input terminal IC40-152 pin is always “L”. 3) Replace the LGC board.
Code: C020
Description: Developer motor abnormality
Remedy: Is the developer unit motor working? (Perform the output check: 03-112/162) ↓→ NO → 1) Check if the connector J578 of the developer motor is disconnected. 2) Check if the connector CN337 on the LGC board is disconnected. 3) Check if the connector pins are disconnected or the harnesses are open circuited. 4) Check if the conductor patterns on the developer motor board and LGC board are short circuited or open circuited. 5) Replace the developer motor. 6) Replace the LGC board. YES 1) Check if the PLL lock signal CN337-B6 pin output from the LGC board is always level “L”. 2) Check if the voltage supplied to the ASIC input terminal IC40-150 pin is always “L”. 3) Replace the LGC board.
Code: C030
Description: Transport motor abnormality
Remedy: Is the transport motor working? (Perform the output check: 03-123/173) ↓→ NO → 1) Check if the connector J582 of the transport motor is disconnected. 2) Check if the connector CN337 on the LGC board is disconnected. 3) Check if the connector pins are disconnected or the harnesses are open circuited. 4) Check if the conductor patterns on the transport motor board and LGC board are short circuited or open circuited. 5) Replace the transport motor. 6) Replace the LGC board. YES 1) Check if the PLL lock signal CN337-A7 pin output from the LGC board is always level “L”. 2) Check if the voltage supplied to the ASIC input terminal IC40-149 pin is always “L”. 3) Replace the LGC board.
Code: C040
Description: PFP motor abnormality
Remedy: Is the PFP motor working? (Perform the output check: 03-109/159) ↓→ NO → 1) Check if the signal line connector CN503 of the PFP motor is disconnected. 2) Check if the power line connector CN502 of the PFP motor is disconnected. 3) Check if the connector CN246 on the PFP board is disconnected. 4) Check if the signal line connector CN241 on the PFP board is disconnected. 5) Check if the power line connector CN242 on the PFP board is disconnected. 6) Check if the connector CN332 on the LGC board is disconnected. 7) Check if the connector pins are disconnected or the harnesses are open circuited. 8) Check if the conductor patterns on the PFP motor board, PFP board and LGC board are short circuited or open circuited. 9) Replace the PFP motor. 10)Replace the PFP board. 11)Replace the LGC board. YES Is the LED on the PFP motor board lit without flashing? ↓→ NO → 1) Check if the connector pins are disconnected or the harnesses are open circuited. 2) Check if the conductor patterns on the PFP motor board, PFP board and LGC board are short circuited or open circuited. 3) Replace the PFP motor. 4) Replace the PFP board. 5) Replace the LGC board. YES 1) Check if the PLL lock signal CN246-8 pin output from the PFP board is always “L” level. 2) Check if the voltage supplied to the microcomputer input terminal IC5-17 pin is always “L” level. 3) Replace the PFP board. 4) Replace the LGC board.
Remedy: Does the tray go up? (Perform the output check: 03-242, 243) ↓→ NO → 1) Check if the connector of the tray-up motor is disconnected. 2) Check if the connector CN341 on the LGC board is disconnected. 3) Check if the connector pins are disconnected or the harnesses are open circuited. 4) Check if the conductor pattern on the LGC board is short circuited or open circuited. 5) Replace the tray-up motor. 6) Replace the LGC board. YES Is the tray-up sensor working? (Perform the input check: 03-[FAX]OFF/[6]/[H], /[6]/[G]) ↓→ NO → 1) Check if the connector of the sensor is disconnected. 2) Check if the connector CN341 on the LGC board is disconnected. 3) Check if the slit reaches the sensor. 4) Check if the connector pins are disconnected or the harnesses are open circuited. 5) Check if the conductor pattern on the LGC board is short circuited or open circuited. 6) Replace the tray-up sensor. 7) Replace the LGC board. YES 1) Check if the conductor pattern on the LGC board is short circuited or open circuited. 2) Replace the LGC board.
Remedy: Does the tray go up? (Perform the output check: 03-278, 280) ↓→ NO → 1) Check if the connector of the tray-up motor is disconnected. 2) Check if any of the connectors CN241, CN242 and CN244 on the PFP board is disconnected. 3) Check if the connector CN344 on the LGC board is disconnected. 4) Check if the connector pins are disconnected or the harnesses are open circuited. 5) Check if the conductor patterns on the PFP board and LGC board are short circuited or open circuited. 6) Replace the tray-up motor. 7) Replace the PFP board. 8) Replace the LGC board. YES Is the tray-up sensor working? (Perform the input check: 03-[FAX]OFF/[2]/[H], /[4]/[H]) ↓→ NO → 1) Check if the connector of the sensor is disconnected. 2) Check if any of the connectors CN241, CN247 and CN248 on the PFP board is disconnected. 3) Check if the connector CN344 on the LGC board is disconnected. 4) Check if the slit reaches the sensor. 5) Check if the connector pins are disconnected or the harnesses are open circuited. 6) Check if the conductor patterns on the PFP board and LGC board are short circuited or open circuited. 7) Replace the tray-up sensor. 8) Replace the PFP board. 9) Replace the LGC board. YES 1) Check if the conductor pattern on the LGC board is short circuited or open circuited. 2) Replace the LGC board.