• Code: CAA
• Description: Secondary scanning fine 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: CAB
• Description: Secondary scanning inter-page compensation 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: CAC
• Description: Primary scanning dot 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: CB1
• Description: Abnormal feed motor
• Remedy: [Procedure 1] Is second feed motor (M8) rotating in reverse at the fixed timing? NO Replace second feed motor or finisher controller PC board. YES Is the shutter securely attached to the shutter upper/lower bars? NO Attach it securely. YES Turn the feed roller-2 in reverse by hand. Do the shutter upper/lower bars move up and down? NO Fix the mechanism including the shutter upper/lower bars and gears of the feed roller-2. YES Is the shutter closed detecting switch (MS4) working normally? NO Replace the switch. YES Replace the finisher controller PC board. [Procedure 2] Is second feed motor (M8) rotating in reverse at the fixed timing? NO Replace second feed motor or finisher controller PC board. YES Is the shutter securely attached to the shutter upper/lower bars? NO Attach it securely. YES Turn feed roller-2 in reverse by hand. Do the shutter upper/lower bars move up and down? NO Fix the mechanism including the shutter upper/lower bars and gears of the feed roller-2. YES Is the shutter open sensor (PI5) working normally? NO Replace the sensor. YES Replace the finisher controller PC board. [Procedure 3] Check the safety zone switch (MS3). Is the switch working normally? NO Replace the switch. YES Is the safety zone switch (MS3) correctly pressed? NO Fix the mechanism. YES Is the shutter closed detecting switch (MS4) working normally? NO Replace the switch. YES Is the shutter closed detecting switch (MS4) correctly pressed? NO Fix the mechanism. YES Replace the finisher controller PC board.

• Code: CB2
• Description: Abnormal delivery motor
• Remedy: Rotate the delivery motor by hand. Does it rotate smoothly? NO Fix the mechanism. YES Is the delivery motor clock sensor (PI10) working normally? NO Replace the sensor. YES Does the voltage between J11-4 and -5 on the finisher controller PC board become 24V when the delivery motor starts rotating? NO Replace the finisher controller PC board. YES Is the wiring between the delivery motor and finisher controller PC board correct? YES Correct the wiring. NO Replace the motor.

• Code: CB3
• Description: Abnormal tray lift motor
• Remedy: <Procedure 1> Is the tray 1 home position sensor working properly? Replace the tray 1 home position sensor. Is the tray 1 lifting mechanism working properly? Correct the defect of the mechanism. Is 24V supplied to the tray1 lifting motor from the finisher control board at the timing of tray driving? Replace the finisher control board. Is the harness between the finisher control board and tray 1 lifting motor normal? Replace the harness. Replace the tray 1 lifting motor. <Procedure 2> Is the tray 1 lifted/lowered? Are the tray 1 lifting motor clock sensor 1 and 2 working properly? Replace the sensor board. Replace the finisher control board. Is the power supplied to the motor from the finisher control board at the timing of tray 1 lifting? Replace the finisher control board. Is there any abnormality at the tray 1 lifting mechanism? Correct the defect of the mechanism. Replace the tray 1 lifting motor. <Procedure 3> Is the tray 2 home position sensor working properly? Replace the tray 2 home position sensor. Is the tray 2 lifting mechanism working properly? Correct the defect of the mechanism. Is 24V supplied to the tray 2 lifting motor from the finisher control board at the timing of tray driving? Replace the finisher control board. Is the harness between the finisher control board and tray 2 lifting motor normal? Replace the harness. Replace the tray 2 lifting motor. <Procedure 4> Is the tray 2 lifted/lowered? Are the tray 2 lifting motor clock sensor 1 and 2 working normally? Replace the sensor board. Replace the finisher control board. Is the power supplied to the motor from the finisher control board at the timing of tray 2 lifting? Replace the finisher control board. Is there any abnormality at the tray 2 lifting mechanism? Correct the defect of the mechanism. Replace the tray 2 lifting motor.

• Code: CB4
• Description: Abnormal alignment motor
• Remedy: Is the alignment guide home position sensor (PI6) working normally? NO Replace the sensor. YES Is the wiring between the finisher controller PC board and the alignment motor (M3) correct? YES Correct the wiring. NO Is there any mechanical problem with the alignment guide movement path? YES Fix the mechanism. NO Is the problem solved by replacing the alignment motor? NO Replace the finisher controller PC board. YES END

• Code: CB5
• Description: Abnormal staple motor
• Remedy: Is the wiring between the stapler and the finisher controller PC board correct? YES Connect or replace the harness. NO Is the problem solved by replacing the stapler? NO Replace the finisher controller PC board. YES END