• Code: C8160
• Description: DF tray motor error (3) Object: 1000-sheet finisher
• Causes: DF tray sensor 3 does not turn on after passing 30s when descending the DF tray.
• Remedy: 1 Checking the DF tray The DF tray is not assembled properly. If the DF tray is not shifted manually vertically, repair the part that restricts the operation. 2 Checking the DF tray drive components The DF tray drive components are not properly attached, or they are faulty. Reattach the DF tray drive components. Replace them if they are not fixed. 3 Checking the wire The wire is not properly connected or is faulty. Reinsert the following wire connectors, and replace the wires there is no continuity.• DF tray motor - DF main PWB• DF tray sensor 4 - DF main PWBOr, • DF tray sensor 5 (with the folding unit) - DF main PWB Electrical Diagram of PWBs 4 Checking the DF tray motor The DF tray motor is faulty. Replace the DF tray motor if it does not operate properly when checking the operation at U240. U240 Execution 5 Checking DF tray sensor 3 DF tray sensor 3 is not properly attached, or it is faulty. Reattach DF tray sensor 3 and execute U241 to check the operation.If it does not operate properly, replace the sensor. U241 Execution 6 Replacing the DF main PWB The DF main PWB is faulty. Replace the DF main PWB. DF Main PWB Replacement

• Code: C8160
• Description: DF tray motor error (3) Object: 4000-sheet finisher
• Causes: DF tray sensors 4, 5 does not turn on after passing 60s when descending the DF main tray.
• Remedy: 1 Checking the DF main tray The DF main tray is not assembled properly. If the DF main tray is not shifted manually vertically, repair the part that restricts the operation. 2 Checking the DF main tray drive components The DF main tray drive components are not properly attached, or they are faulty. Reattach the DF main tray drive components. Then, replace them if they are not fixed. 3 Checking the wire The wire is not properly connected or is faulty. Reinsert the following wire connectors, and replace the wires there is no continuity.• DF tray motor - DF main PWB• DF tray sensor 4 - DF main PWBOr, • DF tray sensor 5 (with the folding unit) - DF main PWB Electrical Diagram of PWBs 4 Checking the DF tray motor The DF tray motor is faulty. Replace the DF tray motor if it does not operate properly when checking the operation at U240. U240 Execution 5 Checking DF tray sensors 4, 5 DF tray sensors 4, 5 are not properly attached, or they are faulty. Reattach DF tray sensor 4, or DF tray sensor 5 (when equipping the folding unit).Next, execute U241 to the operation check. If it does not operate properly, replace each sensor. U241 Execution 6 Replacing the DF main PWB The DF main PWB is faulty. Replace the DF main PWB. DF Main PWB Replacement

• Code: C8160
• Description: DF tray motor error (3) Object: Inner finisher
• Causes: The DF tray sensor does not turn on after passing 4s when descending the DF tray.
• Remedy: 1 Checking the DF tray The DF tray is not assembled properly. If the DF tray is not shifted manually vertically, repair the part that restricts the operation. 2 Checking the DF tray drive components The DF tray drive components are not properly attached, or they are faulty. Reattach the DF tray drive components. Replace them if they are not fixed. 3 Checking the wire The wire is not properly connected or is faulty. Reinsert the following wire connectors, and replace the wires there is no continuity.• DF tray motor - DF main PWB• DF tray sensor 4 - DF main PWBOr, • DF tray sensor 5 (with the folding unit) - DF main PWB Electrical Diagram of PWBs 4 Checking the DF tray motor The DF tray motor is faulty. Replace the DF tray motor if it does not operate properly when checking the operation at U240. U240 Execution 5 Checking the DF tray sensor The DF tray sensor is not properly attached, or it is faulty. Reattach DF tray sensor 4 and execute U241 to check the operation. If it does not properly operate, replace the sensor. U241 Execution 6 Replacing the DF main PWB The DF main PWB is faulty. Replace the DF main PWB. DF Main PWB Replacement

• Code: C8170
• Description: DF side registration motor 1 error 1
• Causes: The home position cannot be detected after passing 3s when relocating to the home position.
• Remedy: 1 Checking the front DF side registration guide The front DF side registration guide is not assembled properly. If the front DF side registration guide is not shifted manually, repair the part that restricts the operation. 2 Checking the front DF side registration guide drive components The DF side registration front guide drive components are not properly attached, or they are faulty. Reattach the DF side registration front guide drive components. Then, replace them if they are not fixed. 3 Checking the wire The wire is not properly connected or is faulty. Reinsert the following wire connectors, and replace the wires if there is no continuity.• DF side registration motor 1 - DF main PWB• DF side registration sensor 1 - DF main PWB Electrical Diagram of PWBs 4 Replacing DF side registration motor 1 DF side registration motor 1 is faulty. Replace DF side registration motor 1 if it does not operate properly when checking the operation at U240. U240 Execution 5 Checking DF side registration sensor 1 DF side registration sensor 1 is not properly attached, or it is faulty. Reattach DF side registration sensor 1 and execute U241 to check the operation. If it does not properly operate, replace the sensor. U241 Execution 6 Replacing the DF main PWB The DF main PWB is faulty. Replace the DF main PWB. DF Main PWB Replacement

• Code: C8180
• Description: DF side registration motor 1 error 2
• Causes: J6810/J6811/J6812 (Front DF side registration jam) was detected 2 times continuously.
• Remedy: 1 Checking the front DF side registration guide The front side registration guide is not assembled properly. If the front DF side registration guide is not shifted manually, repair the part that restricts the operation. 2 Checking the front DF side registration guide drive components The DF side registration front guide drive components are not properly attached, or they are faulty. Reattach the front DF side registration guide drive components. 3 Replacing the front DF side registration guide drive components The front DF side registration guide drive components are faulty. Replace the front DF side registration guide drive components. 4 Checking the wire The wire is not properly connected or is faulty. Reinsert the following wire connectors, and replace the wires if there is no continuity.• DF side registration motor 1 - DF main PWB• DF side registration sensor 1 - DF main PWB Electrical Diagram of PWBs 5 Checking DF side registration motor 1 DF side registration motor 1 is faulty. Replace DF side registration motor 1 if it does not operate properly when checking the operation at U240. U240 Execution 6 Checking DF side registration sensor 1 DF side registration sensor 1 is not properly attached, or it is faulty. Reattach DF side registration sensor 1 and execute U241 to check the operation. If it does not properly operate, replace the sensor. U241 Execution 7 Replacing the DF main PWB The DF main PWB is faulty. Replace the DF main PWB. DF Main PWB Replacement

• Code: C8190
• Description: DF side registration motor 2 error 1
• Causes: The home position cannot be detected after passing 3s when relocating to the home position.
• Remedy: 1 Checking the rear DF side registration guide The rear DF side registration guide is not assembled properly. If the rear DF side registration guide is not shifted manually, repair the part that restricts the operation. 2 Checking the rear DF side registration guide drive components The DF side registration rear guide drive components are not properly attached, or they are faulty. Reattach the DF side registration rear guide drive components. Then, replace them if they are not fixed. 3 Checking the wire The wire is not properly connected or is faulty. Reinsert the following wire connectors, and replace the wires if there is no continuity.• DF side registration motor 2 - DF main PWB• DF side registration sensor 2 - DF main PWB Electrical Diagram of PWBs 4 Replacing DF side registration motor 2 DF side registration motor 2 is faulty. Replace DF side registration motor 2 if it does not operate properly when checking the operation at U240. U240 Execution 5 Checking DF side registration sensor 2 DF side registration sensor 2 is not properly attached, or it is faulty. Reattach DF side registration sensor 2 and execute U241 to check the operation. If it does not properly operate, replace the sensor. U241 Execution 6 Replacing the DF main PWB The DF main PWB is faulty. Replace the DF main PWB. DF Main PWB Replacement

• Code: C8200
• Description: DF side registration motor 2 error 2
• Causes: J6910/J6911/J6912 (Rear DF side registration jam) was detected 2 times continuously.
• Remedy: 1 Checking the rear DF side registration guide The rear DF side registration guide is not assembled properly. If the rear DF side registration guide is not shifted manually, repair the part that restricts the operation. 2 Checking the rear DF side registration guide drive components The side registration rear guide drive components are not properly attached, or they are faulty. Reattach the DF side registration rear guide drive components. Then, replace them if they are not fixed. 3 Checking the wire The wire is not properly connected or is faulty. Reinsert the following wire connectors, and replace the wires if there is no continuity.• DF side registration motor 2 - DF main PWB• DF side registration sensor 2 - DF main PWB Electrical Diagram of PWBs 4 Checking DF side registration motor 2 DF side registration motor 2 is faulty. Replace DF side registration motor 2 if it does not operate properly when checking the operation at U240. U240 Execution 5 Checking DF side registration sensor 2 DF side registration sensor 2 is not properly attached. Reattach DF side registration sensor 2 and execute U241 to check the operation. If it does not properly operate, replace the sensor. U241 Execution 6 Replacing the DF main PWB The DF main PWB is faulty. Replace the DF main PWB. DF Main PWB Replacement

• Code: C8210
• Description: DF staple motor front/rear error
• Causes: The home position could not be detected after passing 3s when replacing to the home position at the initial operation.
• Remedy: 1 Checking the DF staple unit The DF staple unit is not assembled properly. If the DF staple unit is not shifted manually back and forth, repair the part that restricts the operation. 2 Checking the DF staple unit drive components The DF staple unit drive components are not properly attached, or they are faulty. Reattach the DF staple unit drive components. Then, replace them if they are not fixed. 3 Checking the wire The wire is not properly connected or is faulty. Reinsert the following wire connectors, and replace the wires when they have no continuity.• DF staple motor - DF main PWB• DF staple sensor - DF main PWB Electrical Diagram of PWBs 4 Replacing the DF staple motor The DF staple motor is faulty. Replace the DF staple unit if the DF staple motor does not operate properly when checking the operation at U240. DF Staple Unit Replacement 5 Checking the DF staple sensor The DF staple motor is not properly attached, or it is faulty. Reattach the DF staple sensor. Then, replace the DF staple unit if the sensor is not fixed. DF Staple Unit Replacement 6 Replacing the DF main PWB The DF main PWB is faulty. Replace the DF main PWB. DF Main PWB Replacement