• Code: C1B
• Description: LCF motor is abnormal (paper can be fed from the cassettes other than the LCF cassette)
• Remedy: Is the LCF motor working? (Perform the output check in the test mode: 03-122/172) NO 1. Check if the connector CN1 of the LCF motor is disconnected. 2. Check if the connector CN102 on the LCF board is disconnected. 3. Check if the signal line connector CN100 on the LCF board is disconnected. 4. Check if the power line connector CN101 on the LCF board is disconnected. 5. Check if the connector J312 on the LGC board is disconnected. 6. Check if the connector pins are disconnected and the harnesses are open-circuited. 7. Check if the conductor patterns on the LCF motor board, LCF board and LGC board arer short- or open-circuited. 8. Replace the LCF motor. 9. Replace the LCF board. 10. Replace the LGC board. YES 1. Check if the connector pins are disconnected and the harnesses are open-circuited. 2. Check if the conductor patterns on the LCF motor board, LCF board and LGC board are short- or open-circuited. 3. Check if the PLL lock signal CN102-3 output from the LCF board is always “L” level. 4. Check if the voltage supplied to the microcomputer input terminal IC103-17 is always “L” level. 5. Replace the LCF motor. 6. Replace the LCF board. 7. Replace the LGC board.

• Code: C26
• Description: Peak detection error
• Remedy: Does the exposure lamp light? YES 1. Check if the connectors on the CCD and SLG boards are disconnected. 2. Check if the shading correction plate is dirty. 3. Check if the conductor pattern on the CCD board is short- or open-circuited. 4. Check if the conductor pattern on the SLG board is short- or open-circuited. 5. Replace the lens unit. 6. Replace the SLG board. NO 1. Check if the connectors of the exposure lamp and inverter are disconnected. 2. Check the SLG board if the connector pin J9 is disconnected and the harness is short- or opencircuited. 3. Check if the conductor pattern on the SLG board is short- or open-circuited. 4. Replace the SLG board. 5. Replace the inverter. 6. Replace the exposure lamp.

• Code: C27
• Description: Carriage home position sensor not going OFF within a fixed time
• Remedy: Are the carriages slightly moved to the feeding direction?/Are the carriages staying at a position other than home position? YES Check if the circuits of the SLG and SDV boards are abnormal. NO 1. Check if the connector pin is disconnected and the harness is short- or open-circuited. 2. Check if the conductor pattern on the SDV board is short- or open-circuited. 3. Check if the conductor pattern on the SLG board is short- or open-circuited. 4. Replace the SDV board. 5. Replace the SLG board.

• Code: C28
• Description: Carriage home position sensor not going ON within a fixed time
• Remedy: Do the carriages make a big noise after they arrive at the home position? YES The carriage home position sensor is not turned ON. 1. Check if the connector of the sensor is disconnected. 2. Check if the circuits of the SDV and SLG boards are abnormal. NO The carriages are stopped at the home position and do not move. 1. Check if the connector pins are disconnected and the harnesses are short- or open-circuited. 2. Check if the conductor pattern on the SDV board is short- or open-circuited. 3. Check if the conductor pattern on the SLG board is short- or open-circuited. 4. Replace the SDV board. 5. Replace the SLG board.

• Code: C41
• Description: Thermistor or heater is abnormal at power ON
• Remedy: 1. Check the thermistors (1) Check if the connectors are disconnected. (2) Check if the center and side thermistors are in contact with the surface of the fuser roller properly? (3) Check if the harnesses of the center and side thermistors are open-circuited. 2. Check the IH control board and IH coil (1) Check if the IH coil is broken. (2) Check if the connector of the IH coil is disconnected. (3) Check if the thermostat is blown. (4) Check if the connectors on the IH control board are disconnected (AC input connector and LGC I/F connector J552). (5) Check if the IH control board or the switching power supply unit are abnormal. • Replace the IH control board. 3. Check the LGC board (1) Check if the connectors J315 and J317 are disconnected. (2) Check if the conductor pattern on the LGC board is short- or open-circuited. (3) Replace the LGC board. 4. Clear the status counter After repairing the matter which caused the error [C41], perform the following: (1) Turn ON the power while [0] and [8] are pressed simultaneously. (2) Enter “400” with the digital keys, then press the [START] key. (3) Change the current status counter value “1” or “2” to “0”, then press the [SET] key or [INTERRUPT] key (to cancel [C41]). (4) Turn the power OFF and then back ON. Make sure that the copier enters the normal standby state.

• Code: C43
• Description: Thermistor is abnormal after abnormality judgment
• Remedy: 1,2.3. Check the thermistors, IH control board, IH coil and LGC board Check the above components following the procedure 1, 2 and 3 for [C41]. 4. Clear the status counter Change the current status counter value (08-400) “4” or “6” to “0” for [C43] and “5”, “7” or “9” to “0” for [C44], taking the same procedure as that for [C41]. * The status counter value is as follows in the following cases. Change them to "0" respectively. • The error occurred during warming-up: "4" or "5" • The error occurred after the machine has become ready: "6" or "7" • The temperature detected by the center thermistor is 230°C or higher: "9" • The temperature detected by the side thermistor is 270°C or higher: "9"

• Code: C44
• Description: Fuser is abnormal after abnormality judgment
• Remedy: 1,2.3. Check the thermistors, IH control board, IH coil and LGC board Check the above components following the procedure 1, 2 and 3 for [C41]. 4. Clear the status counter Change the current status counter value (08-400) “4” or “6” to “0” for [C43] and “5”, “7” or “9” to “0” for [C44], taking the same procedure as that for [C41]. * The status counter value is as follows in the following cases. Change them to "0" respectively. • The error occurred during warming-up: "4" or "5" • The error occurred after the machine has become ready: "6" or "7" • The temperature detected by the center thermistor is 230°C or higher: "9" • The temperature detected by the side thermistor is 270°C or higher: "9"

• Code: C45
• Description: Side thermistor is abnormal after the copier has become ready
• Remedy: 1. Check the side thermistor (1) Check if the connector is disconnected. (2) Check if the side thermistor is in contact with the surface of the fuser roller properly. (3) Check if the harness of the side thermistor is open-circuited. 2. Check the LGC board (1) Check if the connector J315 is disconnected. (2) Check if the conductor pattern on the board is short- or open-circuited. (3) Replace the LGC board. 3. Clear the status counter Change the current status counter value (08-400) “8” to “0”.