• Code: 8230
• Description: DF staple motor error 1
  Staple JAM (DF) has been detected twice in a row. (The second JAM detection condition fullfilled with the home position did not detected in 600 ms after the motor was driven.)
• Remedy: DF staple motor: 1. Remove the staple unit and check that stapling is possible without a jam. 2. Confirm that the FCC wiring connector is not distorted and connect the FCC wiring all the way in. Staple unit and DF main PWB (YC17) (4000-sheet finisher) Staple unit and DF main PWB (YC11) (1000-sheet finisher) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the staple unit.
  DF staple sensor: Replace the staple unit.
  DF main PWB: Replace the DF main PWB

• Code: 8240
• Description: DF staple motor error 2
  Staple JAM (DF) has been detected twice in a row. (The second JAM detection condition fullfilled with a lock detection signal maintained 1 V for 500 ms continuously, while the stapler motor was driven.)
• Remedy: DF staple motor: 1. Remove the staple unit and check that stapling is possible without a jam. 2. Confirm that the FCC wiring connector is not distorted and connect the FCC wiring all the way in. Staple unit and DF main PWB (YC17) (4000-sheet finisher) Staple unit and DF main PWB (YC11) (1000-sheet finisher) 3. If the wiring is disconnected, shorted or grounded, replace the wiring. 4. Replace the staple unit.
  DF main PWB: Replace the DF main PWB

• Code: 8300
• Description: Center-folding unit communication error
  (4000-sheet finisher) Communication with the center- folding unit is not possible.
• Remedy: CF unit set switch: 1. Execute U241 Booklet - Set to check the finisher switch. 2. Check that the switch and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF main PWB (YC7) and DF main PWB (YC9) 4. If the wiring is disconnected, shorted or grounded, replace the wiring. 5. Replace the CF unit set switch.
  CF main PWB: Replace the CF main PWB.
  DF main PWB: Replace the DF main PWB.

• Code: 8310
• Description: CF side registration motor 2 error
  (4000-sheet finisher) When initial operation, CF side registration sensor 2 does not turn on within 1 s.
• Remedy: CF side registration motor 2: 1. Execute Motor - Width Test of U240 finisher operation check . 2. Manipulate the side registration upper guide back and forth to check it can smoothly move back and forth. 3. Check that the drive from the motor reaches the side registration upper guide. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF side registration motor 2 and CF main PWB (YC10) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the CF side registration motor.
  CF side registration sensor 2: 1. Execute U241 Booklet - Width Up HP to check the finisher switch. 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF side registration sensor 2 and CF main PWB (YC20) 4. Replace the CF side registration sensor 2.
  CF main PWB: Replace the CF main PWB

• Code: 8320
• Description: CF adjustment motor error
  (4000-sheet finisher) When initial operation, CF adjustment sensor does not turn on within 2.5 s.a
• Remedy: CF adjustment motor1,2: 1. Execute U240 Motor - Bundle Up / Down to check the finisher operation . 2. Manipulate the fold moving belt up and down to check it is smoothly operable. 3. Check that the drive from the motor reaches the fold moving belt. (Check if the belt is bent.) 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF adjustment motor 1,2 and CF main PWB (YC10) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the CF adjustment motor1,2.
  CF adjustment sensor1,2: 1. Execute U241 Booklet - bundle Up / Down HP to check the finisher switch . 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF adjustment sensor 1,2 and CF main PWB (YC20) 4. Replace the CF adjustment sensor1,2.
  CF main PWB: Replace the CF main PWB.

• Code: 8330
• Description: CF blade motor error
  (4000-sheet finisher) When initial operation, CF blade sensor does not turn on within 1500 ms.
• Remedy: CF blade motor: 1. Execute U240 Booklet - Blade to check the finisher operation . 2. Manipulate the fold blade up and down to check it is smoothly operable. 3. Check that the drive from the motor reaches the fold blade. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF blade motor and CF main PWB (YC15) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the CF blade motor.
  CF blade sensor: 1. Execute U241 Booklet - Blade HP to check the finisher switch. 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF blade sensor and CF main PWB (YC20) 4. Replace the CF blade sensor.
  CF main PWB: Replace the CF main PWB.

• Code: 8340
• Description: CF staple motor error 1
  (4000-sheet finisher) Staple JAM (center-folding unit) has been detected twice in a row. (The second JAM detection condition fullfilled with the home position did not detected in 600 ms after the motor was driven.)
• Remedy: CF staple motor: 1. Execute U240 Booklet - Staple to check the finisher operation. 2. Manipulate the staple up and down check it is smoothly operable. 3. Check that the drive from the motor reaches the staple unit. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF staple unit and CF main PWB (YC13) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the CF staple motor.
  CF staple sensor: Replace the CF staple unit.
  CF main PWB: Replace the CF main PWB.

• Code: 8350
• Description: CF side registration motor 1 error
  (4000-sheet finisher) When initial operation, CF side registration sensor 1 does not turn on within 1 s.
• Remedy: CF side registration motor 1: 1. Execute U240 Booklet - Width Test to check the finisher operation. 2. Manipulate the side registration lower guide back and forth to check it can smoothly operable. 3. Check that the drive from the motor reaches the side registration lower guide. 4. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF side registration motor 1 and CF main PWB (YC10) 5. If the wiring is disconnected, shorted or grounded, replace the wiring. 6. Replace the CF side registration motor 1.
  CF side registration sensor 1: 1. Execute U241 Booklet - Width Down HP to check the finisher switch. 2. Check that the sensor and its mounting bracket are correctly positioned. 3. Confirm that the wiring connector is firmly connected and, if necessary, connect the connector all the way in. CF side registration sensor 1 and CF main PWB (YC20) 4. Replace the CF side registration sensor 1.
  CF main PWB Replace the CF main PWB.