• Code: CD71
• Description: Waste toner transport motor locking error: The auger in the waste toner transport path does not rotate.
• Remedy: (1) Pull out the process unit, rotate the gear counterclockwise and check if the load is extremely heavy. (2) Is the load still extremely heavy after the gear is rotated for a while to discharge the toner from the waste toner transport path? (3) Is the load still extremely heavy after the actuator is removed, the auger is pulled out and clean them? (4) Check if there is any abnormality of the mechanism in the waste toner transport path. (5) Does the waste toner transport motor (M31) rotate? (Output check: 03-234) (6) Are the connector of the waste toner transport motor and the relay connector disconnected? (7) Is the driving gear of the waste toner transport motor damaged or abnormal? (8) Is the connector (CN331) on the LGC board disconnected? (9) Check if the connector pins are disconnected or the harnesses are open-circuited. (10) Check if the conductor pattern on the LGC board is short circuited or open circuited. (11) Replace the waste toner transport motor. (12) Replace the LGC board. (13) Are the auger lock detection sensor (S42) working? (Input check: 03-[FAX]ON/[0]/[B]) (14) Check if each Normal/Highlighted display is reflected correctly to judge the malfunction. (15) Is the connector of the auger lock sensor disconnected? (16) Is the connector (CN557) on the EPU board disconnected? (17) Check if the connector pins are disconnected, the EPU drawer connector pins are disconnected or bent or the harnesses are open-circuited. (18) Check if the conductor pattern on the EPU board is short circuited or open circuited. (19) Replace the auger lock detection sensor. (20) Replace the EPU board. (21) Check if there is any abnormality of the mechanism such as the sensor's actuator.

• Code: CD80
• Description: TRU waste toner motor locking error: The auger (TRU side) in the TRU waste toner transport path does not rotate.
• Remedy: (1) Check if the TRU waste toner motor rotates.(Output check: 03-239) (2) Check if toner is clogged at the entrance of the TRU waste toner transport path. (3) Check if any of the motor and the driving gears is improperly installed or deformed. (4) Check if the connector of the motor is disconnected, and CN491 and CN492 on the ADU board are disconnected. (5) Check if the connector pins are disconnected or the wires of harnesses are open circuited. (6) Replace the TRU waste toner motor. (7) Replace the ADU board. (8) Replace the PFC board.

• Code: CD81
• Description: TRU waste toner transport motor locking error: The auger (waste toner box side) in the TRU waste toner transport path does not rotate.
• Remedy: (1) Take off the TRU waste toner box, and then rotate the gear by hand to discharge the waste toner on the transport path. (2) If the gear still does not rotate smoothly, apply grease to it. (3) Check if the TRU waste toner transport motor rotates.(Output check: 03-240) (4) Check if toner is clogged on the TRU waste toner transport path. (5) Check if any of the motor and the driving gears is improperly installed or deformed. (6) Check if the connector of the motor is disconnected, and CN497 and CN490 on the ADU board are disconnected. (7) Check if the connector pins are disconnected or the wires of harnesses are open circuited. (8) Replace the TRU waste toner transport motor. (9) Replace the ADU board. (10) Replace the PFC board.

• Code: CD82
• Description: TRU waste toner full-status error
• Remedy: (1) Check if the TRU waste toner box is full of used toner. (2) Replace it, if it is full. Check the following steps, if not. (3) Check if the TRU waste toner amount detection sensor is working normally. (Input check: 03- [FAX]OFF/[5]/[E]) (4) Check if the connector and the relay connector of the TRU waste toner amount detection sensor disconnected. (5) Are the connectors (CN491 and CN493) on the ADU board disconnected? (6) Check if the conductor pattern on the ADU board or the harness is open circuited or short circuited. (7) Replace the TRU waste toner amount detection sensor. (8) Replace the ADU board. (9) Replace the PFC board.

• Code: CDE0
• Description: Paddle motor abnormality: The paddle motor is not rotating or the paddle is not rotating normally. [MJ1103/1104]
• Remedy: MJ-1103/1104 Is there any mechanical problem with the paddle is rotated? YES Fix the mechanism. NO Is the harness between the paddle motor (M8) and the finisher control PC board (CN6) disconnected or open circuited? l YES • Reconnect the connector securely. • Replace the harness. NO 1. Replace the paddle motor (M8). 2. Replace the finisher control PC board.

• Code: CE00
• Description: Communication error between finisher and punch unit: Communication error between finisher controller PC board and punch controller PC board [MJ-1103/1104 (when MJ-6102 is installed)]
• Remedy: Download the latest version of the PNC board (HP) firmware again and then check its operation. NO Replace the hole punch control PC board (HP).

• Code: CE10
• Description: Image quality sensor abnormality (OFF level): The output value of this sensor is out of a specified range when sensor light source is OFF.
• Remedy: Is the connector of the image quality sensor, or the connector CN307 on the LGC board disconnected? Is the harness between the LGC board and the image quality sensor, or the harness between the LGC board and the switching power supply open circuited? YES Connect the connector securely. Replace the harness. NO Is the output voltage from the 12V-power supply normal? NO Check the power supply system and replace the switching power supply. YES 1. Replace the image quality sensor. 2. Replace the LGC board.

• Code: CE20
• Description: Image quality sensor abnormality (no pattern level): The output value of this sensor is out of a specified range when the image quality control test pattern is not formed.
• Remedy: Are there any abnormal stains (cleaning defects), large scratches or breaking on the transfer belt surface? Are the drum and the transfer belt rotating? NO <Checking procedure> 1. Check if the transfer belt unit is securely installed. Correct it if not. 2. Check if any toner image remains on the transfer belt surface. If any, check the installation status of the TBU cleaner unit. If there is any abnormality, correct it, and clean the transfer belt. 3. Check if the drum and the transfer belt are properly operated. (ON: 03-101 / OFF: 03-151) If they are not rotating normally, check if their drive gears are damaged or if they contact the equipment. Correct it if needed. Proceed to step (6). (to step (1) for the second time) YES Is the sensor shutter of the image quality sensor opening or closing normally? Or is it damaged? Is the sensor surface of the image quality sensor stained with toner? If so, has it been cleaned? NO <Checking procedure> 1. Take off the transfer belt unit so that you can see the sensor unit. 2. Check if the sensor shutter is opening or closing normally. (Opening: 03-118 / Closing: 03-168) If the sensor shutter is not opening or closing, check if it is damaged or there is any abnormality in the sensor shutter solenoid. Check the connector and the harness between the sensor shutter solenoid and the LGC board. (LGC CN307-A7pin, A8pin) 3. Slide the sensor shutter so that the sensor surface can be seen. 4. Clean the sensor surface with a cotton swab or a soft cloth. 5. Clean the area around the sensor (e.g.: sensor shutter) if it is stained, so that the sensor surface does not become dirty. Proceed to step (6). (to step (1) for the second time) YES Is the connector of the image quality sensor securely connected? Is the connector CN307 on the LGC board securely connected? Is the harness between the LGC board and the image quality sensor disconnected? NO <Checking procedure> • Reconnect the connector. • Replace the harness. Proceed to step (6). (to step (1) for the second time) YES Is +12V power supply voltage normally supplied to the image quality sensor? Is +12V voltage normally output by the CN301-9pin on the LGC board? NO <Checking procedure> 1. Check if +12V voltage is output by the switching power supply (PS-ACC CN404-7pin). 2. Check if +12V voltage is output by the CN301-9pin on the LGC board. Check if the supply harness between the switching power supply and the LGC board is open circuited, damaged or disconnected. Proceed to step (6). (to step (1) for the second time) YES (1) Set the values of “Image quality closed-loop control / Contrast voltage (08-556)” and “Drum surface potential sensor control setting (08-2561)” to “0” (Invalid). (2) Perform “Enforced performing of image quality open-loop control (05-394)”. (3) Output the image quality control test pattern (04-270) more than one time and the list print ([9][START]) in the adjustment mode (05), and then check if the image is normal. Normal Abnormal Abnormal image: Blank print, Solid print, White banding, Color banding, White spots, Poor transfer, Uneven image density, Faded image (low density), Uneven light distribution, Blotched image. * Blank print: including when one of the YMCK colors is not printed. Correct the abnormal image. Proceed to step (5). (4) Replace the image quality sensor or the LGC board. (5) Set the values of “Image quality closed-loop control / Contrast voltage (08-556)” and “Drum surface potential sensor control setting (08-2561)” to “1” (Valid). (6) Perform “Automatic initialization of image quality control (05-396)” and make sure it is completed normally. (Error [CE10], [CE20] and [CE40] do not appear.) Then perform “Automatic gamma adjustment”. | When an error occurs: Check and correct it accordingly. (7) Reset all of the values in the codes “Abnormality detection count (Y/M/C/K) Display/0 clearing (08-573 to 08-576)”.