Code :

Code: C580
Description: Communication error between CNV board and finisher
Causes: CNV board Finisher controller PC board
Remedy: Setting of the equipment • Check if the MJ-1101, MJ-1106, MJ-1032 or MJ-1033 is set as the specified finisher on the equipment (08-4548). CNV board • Check if the harness connecting the CNV board and the finisher controller PC board is disconnected or open circuited. • Check if the conductor pattern on the CNV board is short circuited or open circuited. Finisher controller PC board Check if the conductor pattern on the finisher controller PC board is short circuited or open circuited.

Code: C8E0
Description: ADF communication abnormality: The system has to be stopped because the control abnormality occurred
Causes:
Remedy: Turn the power OFF and then back ON to check if the equipment operates normally.

Code: C940
Description: Engine-CPU abnormality
Causes: LGC board
Remedy: Main power switch Turn OFF the main power switch, then back ON. Engine-CPU and FROM Check if the conductor pattern between the Engine-CPU and FROM is short circuited or open circuited. LGC board Board check

Code: C970
Description: High-voltage transformer abnormality: Leakage of the main charger is detected.
Causes:
Remedy: 2. Check if the spring of high-voltage supply contact point is deformed. 3. Check if the needle electrode is broken or the main charger grid is deformed. 4. Check if any foreign matters is on the needle electrode or the main charger grid. 5. Check if the transfer roller and the separation needle are installed securely. 6. Check if the transfer roller or the separation needle is removed. 7. Check if there is any foreign matter attached on the transfer roller or the separation needle.

Code: CA10
Description: Laser optical unit related service call Polygonal motor abnormality: The polygonal motor is not rotating normally.
Causes: LGC board Laser optical unit
Remedy: 1 Is the polygonal motor rotating? Yes 1. Check if the conductor pattern on the LGC board is short circuited or open circuited. 2. Replace the LGC board. 3. Replace the laser optical unit. No 1. Check if the connector of the harness is disconnected between LGC board (CN314) and the laser optical unit. Reconnect it securely if so. Even if the connector is not apparently disconnected, it may be connected loosely. Therefore check carefully that it is secure. 2. Check if the harness is open circuited and the connector pin is disconnected. 3. Check if the conductor pattern on the LGC board is short circuited or open circuited. 4. Replace the laser optical unit. 5. Replace the LGC board.

Code: CA20
Description: Laser optical unit related service call H-Sync detection error: H-Sync detection PC board cannot detect laser beams.
Causes: LGC board Laser optical unit
Remedy: 1 Are the harness open circuited and the connectors disconnected between the LGC board (CN313) and the laser optical unit? Yes 1. Even if the connector is not apparently disconnected, it may be connected loosely. Therefore check carefully that it is secure. No 1. Replace the LGC board. 2. Replace the laser optical unit

Code: CB00
Description: Finisher not connected
Causes: Converter board Finisher control PC board
Remedy: Setting of the equipment • Check if the MJ-1101, MJ-1106, MJ-1032 or MJ-1033 is set as the specified finisher on the equipment (08-4548). Finisher • Check if the harness connecting the equipment and the finisher controller PC board is disconnected or open circuited. • Check if the conductor pattern on the finisher controller PC board is open circuited or short circuited. • Update the finisher firmware. Converter • Check if the connector connecting the converter board and the LGC board on the equipment is disconnected or open circuited. • Check if the conductor pattern on the converter PC board is open circuited or short circuited. • Update the converter firmware.

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