• Code: C8310
• Description: BF side registration motor 2 error Object: 4000-sheet finisher with the folding unit BF side registration sensor 2 does not turn on after passing 1s during the initial operation.
• Remedy: Checking the upper BF side registration guide The upper BF side registration guide is not assembled properly. If the BF side registration upper guide does not move front and back manually, repair the position where restricts the operation. 2 Checking the upper BF side registration guide drive parts The BF side registration upper guide drive parts are not properly attached, or they are faulty. Reattach the BF side registration upper guide drive parts. If not repaired, replace them. 3 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . BF side registration motor 2 - BF PWB . BF side registration sensor 2 - BF PWB Section 8 "PWBs" 4 Replacing BF side registration motor 2 BF side registration motor 2 is faulty. Replace BF side registration motor 2 if it does not operate properly when checking the operation at U240. Maintenanc e Mode List 5 Checking BF side registration sensor 2 BF side registration sensor 2 is not properly attached, or it is faulty. Reattach BF side registration sensor 2, then execute U241 [Booklet] > [Width Down HP]. If BF side registration sensor 2 does not operate properly, replace it. Maintenanc e Mode List 6 Replacing the BF PWB The BF PWB is faulty. Replace the BF PWB.

• Code: C8320
• Description: BF adjustment motor error Object: 4000-sheet finisher with the folding unit At the initialization, turning on of the BF adjustment sensor is not detected after 2.5s passes.
• Remedy: 1 Checking the BF shift belt The BF shift belt is not assembled properly. If the BF shift belt is not operated manually, repair the part that restricts the operation. 2 Checking the BF shift belt drive parts The BF shift belt drive parts are not properly attached, or they are faulty. Reattach the BF shift belt drive parts. If the belt comes off, reattach it. If not repaired, replace the BF shift belt drive parts. 3 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . BF adjusting motor 1, 2 - BF PWB . BF adjusting sensor 1, 2 - BF PWB Section 8 "PWBs" 4 Replacing BF adjustment motors 1, 2 BF adjustment motors 1, 2 are faulty. Execute U240 [Booklet] > [Bundle Down] or [Bundle Up]. If DF adjusting motor 1 or 2 does not operate properly, replace it. Maintenanc e Mode List 5 Checking BF adjustment sensors 1, 2 BF adjustment sensors 1, 2 are not properly attached, or they are faulty. Reattach BF adjusting sensor 1 or 2, then execute U241 [Booklet] > [Bundle Down HP] or [Bundle Up HP]. If BF adjusting sensor 1 or 2 does not operate properly, replace it. Maintenanc e Mode List 6 Replacing the BF PWB The BF PWB is faulty. Replace the BF PWB.

• Code: C8330
• Description: BF blade motor error Object: 4000-sheet finisher with the folding unit The BF blade sensor does not turn on after passing 3s during the initial operation.
• Remedy: 1 Checking the BF blade The BF blade is not assembled properly. If the BF blade does not operation manually, repair the position where restricts the operation. 2 Checking the BF blade drive parts The BF blade drive parts are not properly attached, or they are faulty. Reattach the BF blade drive parts. If not repaired, replace them. 3 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . BF blade motor - BF PWB . BF blade sensor - BF PWB Section 8 "PWBs" 4 Replacing the BF blade motor The BF blade motor is faulty. Execute U240 [Booklet] > [Blade]. If the BF blade motor does not operate properly, replace it. Maintenanc e Mode List 5 Checking the BF blade sensor The BF blade sensor is not properly attached. Reattach the BF blade sensor, then execute U241 [Booklet] > [Blade HP]. If the BF blade sensor does not operate properly, replace it. Maintenanc e Mode List 6 Replacing the BF PWB The BF PWB is faulty. Replace the BF PWB.

• Code: C8340
• Description: BF staple motor error 1 Object: 4000-sheet finisher with the folding unit BF staple JAM is detected 2 times continuously. (The condition of JAM detection for the second time: after the motor is started, home position cantbedetectedeven600mspassed.)'
• Remedy: 1 Checking the BF staple unit The BF staple unit is not assembled properly. If the BF staple unit does not operation manually, repair the position where restricts the operation. 2 Checking the BF staple unit drive parts The BF staple unit drive parts are not properly attached, or they are faulty. Reattach the BF staple unit drive parts. If not repaired, replace them. 3 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . BF staple unit - DF PWB Section 8 "PWBs" 4 Replacing the BF staple unit The BF staple motor is faulty. Execute U240 [Booklet] > [Staple]. If the BF staple motor does not operate properly, replace the BF staple unit. Maintenanc e Mode List 5 Replacing the BF PWB The BF PWB is faulty. Replace the BF PWB.

• Code: C8350
• Description: BF side registration motor 1 error Object: 4000-sheet finisher with the folding unit BF side registration sensor 1 does not turn on after passing 1s during the initial operation.
• Remedy: 1 Checking the lower BF side registration guide The lower BF side registration guide is not assembled properly. If the BF side registration lower guide does not operation manually, repair the position where restricts the operation. 2 Checking the lower BF side registration guide drive parts The BF side registration lower guide drive parts are not properly attached, or they are faulty. Reattach the BF side registration lower guide drive parts. If not repaired, replace them. 3 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . BF side registration motor 1 - BF PWB . BF side registration sensor 1 - BF PWB Section 8 "PWBs" 4 Replacing BF side registration motor 1 BF side registration motor 1 is faulty. Replace BF side registration motor 1 if it does not operate properly when checking the operation at U240. Maintenanc e Mode List 5 Checking BF side registration sensor 1 BF side registration sensor 1 is not properly attached, or it is faulty. Reattach BF side registration sensor 1, then execute U241 [Booklet] > [Width Up HP]. If BF side registration sensor 1 does not operate properly, replace it. Maintenanc e Mode List 6 Replacing the BF PWB The BF PWB is faulty. Replace the BF PWB.

• Code: C8360
• Description: BF main motor error Object: 4000-sheet finisher with the folding unit The lock-up signal was detected for 1s continuously during the motor operation.
• Remedy: 1 Checking the BF conveying roller The BF conveying roller is not assembled properly. If the BF conveying roller is not rotated manually, repair the part that restricts the operation. 2 Checking the BF conveying roller drive parts The BF conveying roller drive parts are not properly attached, or they are faulty. Reattach the BF conveying roller drive parts. If not repaired, replace them. 3 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . BF main motor - BF PWB Section 8 "PWBs" 4 Replacing the BF main motor The BF main motor is faulty. Execute U240 [Booklet] > [Blade]. If the BF blade motor does not operate properly, replace it. Maintenanc e Mode List 5 Replacing the BF PWB The BF PWB is faulty. Replace the BF PWB.

• Code: C8370
• Description: BF staple motor error 2 Object: 4000-sheet finisher with the folding unit BF staple JAM is detected 2 times continuously. (The condition of JAM detection for the second time: during the motor is operating, home position cantbedetectedeven600mspassed.)'
• Remedy: 1 Checking the BF staple unit The BF staple unit is not assembled properly. If the BF staple unit does not operation manually, repair the position where restricts the operation. 2 Checking the BF staple unit drive parts The BF staple unit drive parts are not properly attached, or they are faulty. Reattach the BF staple unit drive parts. If not repaired, replace them. 3 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . BF staple unit - DF PWB Section 8 "PWBs" 4 Replacing the BF staple motor The BF staple motor is faulty. Execute U240 [Booklet] > [Staple]. If the BF staple motor does not operate properly, replace it. Maintenanc e Mode List 5 Replacing the BF staple unit The BF staple unit is faulty. Replace the BF staple unit. 6 Replacing the BF PWB The BF PWB is faulty. Replace the BF PWB.

• Code: C8410
• Description: PH slide motor error 1 Object: 4000-sheet finisher or 1000-sheet finisher with the punch unit The PH slide sensor does not turn on after shifting 30mm when relocating to the home position.
• Remedy: 1 Checking the punch unit The punch unit is not assembled properly. If the punch slide section does not move front and back manually, repair the position where restricts the operation. 2 Checking the PH drive parts The PH drive parts are not attached properly, or faulty. Reattach the PH drive parts. If not repaired, replace them. 3 Checking the connection The connector is not connected properly, or the wire is faulty. Clean the terminal of the following wire connectors and reconnect the connectors. If there is no continuity, replace the wire. . PH slide motor - PH PWB . PH slide sensor - PH PWB . PH PWB - DF PWB Section 8 "PWBs" 4 Replacing the PH slide motor The PH slide motor is faulty. Execute U240 [Motor] > [Punch Move]. If the PH slide motor does not operate properly, replace the DF staple unit. Maintenanc e Mode List 5 Checking the PH slide sensor The PH slide sensor is not properly attached, or it is faulty. Reattach the PH slide sensor, then check the sensor operation by executing U241. If the PH slide sensor does not operate properly, replace it. Maintenanc e Mode List 6 Replacing the PH PWB The PH PWB is faulty. Replace the PH PWB. Detaching and reattaching the PH PWB (PH- 7A/C/D Installation Guide) 7 Replacing the DF PWB The DF PWB is faulty. Replace the DF PWB. Detaching and reattaching the DF PWB