• Code: CAE
• Description: Primary scanning tap amount measurement error
• Remedy: Are the harness(es) between the PLG board and the galvanomirror, PLG board and laser drive board, and PLG board and HSYNC board broken, and connector(s) disconnected? Yes Replace the harness(es), and re-connect the connector(s). No • Replace the PLG board. • Replace the unit.

• Code: CAF
• Description: Primary scanning inter-page compensation error
• Remedy: Are the harness(es) between the PLG board and the galvanomirror, PLG board and laser drive board, and PLG board and HSYNC board broken, and connector(s) disconnected? Yes Replace the harness(es), and re-connect the connector(s). No • Replace the PLG board. • Replace the unit.

• Code: CB2
• Description: Delivery motor is abnormal
• Remedy: [Procedure 1] Try rotating the exit motor by hand. Does it operate smoothly? No Correct the mechanical mechanism. Yes Is the exit motor clock sensor (PI10) normal? No Replace the sensor. Yes Is the voltage across J11-6 and -7 on the finisher controller board 24V when the exit motor operates? No Replace the finisher controller board. Yes Is the wiring from the motor up to the controller board normal? No Correct the wiring. Yes Replace the motor. [Procedure 2] Try turning the exit motor in the reverse by hand. Does the oscillation guide move up and down? No Correct the oscillation mechanism. Yes Is oscillation guide close detection switch 2 (MS6) normal? No Replace the microswitch. Yes Is the exit motor (M2) operating in reverse at the fixed timing? No Replace the motor. Yes Replace the finisher controller board. [Procedure 3] Try turning the exit motor in the reverse by hand. Does the oscillation guide move up and down? No Correct the oscillation mechanism. Yes Is oscillation guide open sensor (PI18) normal? No Replace the sensor. Yes Is the exit motor (M2) operating in reverse at the fixed timing? No Replace the motor. Yes Replace the finisher controller board. [Procedure 4] Is the safety area detection switch (MS3) normal? No Replace the switch. Yes Is the safety area detection switch (MS3) correctly pressed? No Correct the mechanical mechanism. Yes Is the oscillation guide close detection switch (MS6) normal? No Replace the switch. Yes Is the oscillation guide close detection switch (MS6) correctly pressed? No Correct the mechanical mechanism. Yes Replace the finisher controller board.

• Code: CB3
• Description: Tray lift motor is abnormal
• Remedy: [Procedure 1] Is the tray home position sensor (PI8) normal? No Replace the sensor. Yes Is the tray elevator mechanism normal? No Correct the mechanism. Yes Is 24V DC being supplied to the tray elevator motor (M5) from the finisher controller during tray drive? No Replace the finisher controller board. Yes Is the wiring from the finisher controller board up to the tray elevator motor (M5) normal? No Correct the wiring. Yes Replace the tray elevator motor (M5). [Procedure 2] Is the tray arriving at the tray upper limit switch (MS5) position? Yes Lower the tray position. No Is the tray upper limit switch (MS5) normal? No Replace the switch. Yes Is the wiring from the finisher controller board up to the tray upper limit detection switch normal? No Correct the wiring. Yes Replace the finisher controller board. [Procedure 3] Is the tray rising? No Is power being supplied to the motor from the finisher controller board during tray elevation? No Replace the finisher controller board. Yes Is there a trouble on the tray elevation mechanism? No Replace the tray elevator motor (M5). Yes Correct the tray elevation mechanism. Yes Are tray elevation motor clock sensors 1/2 (PI19/9) normal? No Replace the sensor board. Yes Replace the finisher controller.

• Code: CB4
• Description: Alignment motor is abnormal
• Remedy: Is the aligning plate home position sensor normal? No Replace the sensor. Yes Is the wiring between the finisher controller board and the aligning motor normal? No Correct the wiring. Yes Is there a mechanical object caught on the aligning plate movement path? Yes Correct the mechanical mechanism. No Does replacement of the aligning motor (M5) rectify the trouble? No Replace the finisher controller board. Yes END

• Code: CB5
• Description: Staple motor is abnormal
• Remedy: Is the wiring between the stapler and the finisher controller board normal? No Correct the wiring. Yes Does replacement of the stapler rectify the trouble? No Replace the finisher controller board. Yes END

• Code: CB6
• Description: Stapler shift motor is abnormal
• Remedy: Is the stapler movement home position sensor (PI7) normal? No Replace the sensor. Yes Is the wiring between the finisher controller board and the stapler movement motor normal? No Correct the wiring. Yes Is there a mechanical object caught on the stapler stand movement path? Yes Correct the mechanical mechanism. No Does replacement of the stapler movement motor (M4) rectify the trouble? No Replace the finisher controller board. Yes END

• Code: CB7
• Description: Height sensor is abnormal
• Remedy: [Procedure 1] Does turning the copier’s power switch OFF then ON again rectify the trouble? Yes END No Is the wiring between the finisher controller board and the sensor normal? No Correct the wiring. Yes Is the voltage across J6-2(+) and J6-4(-) on the finisher controller board 5V DC? No Replace the finisher controller board. Yes Re-adjust the height sensor. Replace the height sensor if this trouble occurs frequently. [Procedure 2] Is connector J6 on the finisher controller board, J114 on the height sensor or relay connector J212 disconnected? Yes Re-connect the connector(s). No Is the voltage across J6-2(+) and J6-4(-) on the finisher controller board 5V DC? No Replace the finisher controller board. Yes Is the wiring between the finisher controller board and the sensor normal? No Correct the wiring. Yes Replace the height sensor. [Procedure 3] Does re-adjusting by the DIP switches rectify the trouble? Yes END No Is the wiring between the finisher controller board and the sensor normal? No Correct the wiring. Yes Is the voltage across J6-2(+) and J6-4(-) on the finisher controller board 5V DC? No Replace the finisher controller board. Yes Replace the height sensor.