Description: Large original exit sensor adjustment error
Remedy: Is there any extraneous material between the large original exit sensor and reflective mirror? Remove the extraneous material. Is the reflective mirror tainted? Clean up the mirror. Is the conductor pattern around IC6, IC11 and CN11 on the ADF board short- or open-circuited? 1. Replace the ADF board. 2. Perform the EEPROM initialization of RADF, sensor automatical adjustment and tray width sensor adjustment. 1. Replace the large original exit sensor. 2. Perform the EEPROM initialization of RADF, sensor automatical adjustment and tray width sensor adjustment.
Code: C94
Description: Abnormal main CPU
Remedy: Is the “Call for Service” displayed even after the main switch is turned OFF and back ON ? NO Leave it and see what happens. YES 1. Check if the circuit pattern between the main CPU and MROM is short- or open-circuited. 2. Replace the LGC board if this error occurs frequently.
Code: CA1
Description: Abnormal polygonal motor
Remedy: Is the polygonal motor rotating? NO 1. Check if the connector J302 on the LGC board is disconnected. 2. Check if the connector J203 on the POL board is disconnected. 3. Check if the harness is open-circuited and the connector pin is disconnected. 4. Check if the conductor pattern on the LGC board is short- or open-circuited. 5. Replace the laser optical unit. 6. Replace the LGC board. YES Are the pins-3 and -4 of the connector J203 on the POL board always level “L”? NO 1. Check if the conductor pattern on the LGC board is short- or open-circuited. 2. Replace the laser optical unit. 3. Replace the LGC board. YES 1. Check if the conductor pattern on the LGC board is short- or open-circuited. 2. Replace the LGC board.
Code: CA2
Description: H-Sync detection error
Remedy: Are the harness connecting the connector (J308) on the LGC board and connector (J202) on the SNS board open-circuited? Are the connectors disconnected? YES Replace the harness. Connect the disconnected connectors. NO 1. Replace the LGC board. 2. Replace the laser optical unit.
Remedy: Is any harness between the PLG board and galvanic mirror, PLG board and laser drive PC board and PLG board and H-Sync detection PC board open-circuited or any connector disconnected? Replace the harness. Reconnect the connector. 1. Replace the PLG board. 2. Replace the laser optical unit.
Code: CA5
Description: Laser power adjustment error
Remedy: Is any harness between the PLG board and galvanic mirror, PLG board and laser drive PC board and PLG board and H-Sync detection PC board open-circuited or any connector disconnected? Replace the harness. Reconnect the connector. 1. Replace the PLG board. 2. Replace the laser optical unit.
Code: CA6
Description: Laser calibration error
Remedy: Is any harness between the PLG board and galvanic mirror, PLG board and laser drive PC board and PLG board and H-Sync detection PC board open-circuited or any connector disconnected? Replace the harness. Reconnect the connector. 1. Replace the PLG board. 2. Replace the laser optical unit.
Code: CA9
Description: Image data transmission error from SYS board
Remedy: Is the harness between the PLG board and SYS board open-circuited or the connector disconnected? Replace the harness. Reconnect the connector. 1. Replace the PLG board. 2. Replace the SYS board.