• Code: CC93
• Description: Knurled roller shift solenoid abnormality [MJ-1036]
• Causes: Knurled roller shift solenoid (SOL3) 2nd transport motor (M4) Knurled roller home position sensor (S10)
• Remedy: The knurled roller home position sensor (S10) does not detect that the knurled roller is at the upper position after the 2nd transport motor (M4) has been driven at the specified number of pulses during the initial rising movement of the knurled roller. The knurled roller home position sensor (S10) does not detect that the knurled roller is not at the upper position after the 2nd transport motor (M4) has been driven at the specified number of pulses during the initial lowering movement of the knurled roller. The knurled roller home position sensor (S10) does not detect that the knurled roller is at the upper position when the pressurization of stack exit movement is finished.

• Code: CC94
• Description: Fan motor abnormality[MJ-1036]
• Causes:
• Remedy: MJ-1036 Fan motor (M10) The turning ON of the fan locking signal is detected consistently after the specified time*. * A locking signal is not monitored from the start driving the motor until the specified time has passed.

• Code: CCF1
• Description: Tray safety switch abnormality -(1) The tray safety switch turned on during tray operation (moving up or down).(2) The tray operated with the tray safety switch turned on.
• Causes: Tray safety switch (SW2) Stack tray shift motor (M2) Finisher control PC board
• Remedy: Tray safety switch (SW2) Check the connectors and harnesses between the tray safety switch (SW2) and the connector J110 on the finisher controller PC board. Stack tray shift motor (M2) Check the connectors and harnesses between the stack tray shift motor (M2) and the connector J114 on the finisher controller PC board.

• Code: CDE0
• Description: Paddle motor abnormality: The paddle motor is not rotating or the paddle is not rotating normally. [MJ-1107/1108]
• Causes: MJ-1107 Paddle motor Finisher control PC board
  MJ-1108 Paddle motor (M8) Finisher control PC board
• Remedy: MJ-1107 Paddle Rotate the paddle. Fix any mechanical problem. Paddle motor Check if the connector (CN22) on the finisher controller PC board is disconnected from the paddle motor (M3) and the harnesses are open circuited. Correct if so.
  MJ-1108 Paddle IRotate the paddle. Fix any mechanical problem. Paddle motor (M8) Check the connectors and harnesses between the paddle motor (M8) and the finisher control PC board (CN6).

• Code: CE00
• Description: Communication error between finisher and punch unit: Communication error between finisher controller PC board and punch controller PC board[MJ-1107/1108 (when MJ-6104 is installed)]
• Causes: MJ-1107 (When MJ-6104 is installed) Hole punch control PC board (HP) Finisher control PC board
  MJ-1108 (When MJ-6104 is installed) Hole punch control PC board (HP) Finisher control PC board
• Remedy: MJ-1107 (When MJ-6104 is installed) Hole punch control PC board (HP) • Check the connectors and harnesses between the hole punch control PC board (HP) and the finisher control PC board. • Board check
  MJ-1108 (When MJ-6104 is installed) Hole punch control PC board (HP) • Check the connectors and harnesses between the hole punch control PC board (HP) and the finisher control PC board. • Board check

• 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.
• Causes: Switching power supply Image quality sensor LGC board
• Remedy: Image quality sensor Connector check LGC board • Connector check (CN366) • Check the harnesses between the LGC board and the image quality sensor. • Check the harnesses between the LGC board and the switching power supply.

• 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.
• Causes:
• Remedy: • Check the image quality sensor detection value (05-2757). • Is the value of 05-2757-0 "0", and is the value of 05-2757-1 "255"? Yes 9 No 2 2 • Is the transfer belt or the transfer belt unit securely installed? • Are there any abnormal stains (cleaning defects), large scratches or breaking on the transfer belt surface? • Are the drum and the transfer belt rotating smoothly? • Is the transfer belt tight? Yes 6 No 3 3 Transfer belt unit Check if the transfer belt unit is securely installed. Correct it if not. 4 4 Transfer belt 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. 5 5 Drum and transfer belt Check if the drum and the transfer belt are properly operated. (ON: 03-101 / OFF: 03-151) If the transfer belt rotates normally, check if any abnormal stains (cleaning defects), large scratches or breaking are on the surface of transfer belt by making full rotation of transfer belt. Replace the transfer belt if any. Check if the transfer belt is loose or heaving, and correct it if needed. If they are not rotating normally, check if their drive gears are damaged or if they contact the equipment. Correct it if needed. 19* 6 • Is the sensor shutter of the image quality sensor opening or closing normally? Or is it normal without any damage? • Is the sensor surface of the image quality sensor clean? Yes 9 No 7 7 Sensor unit Take off the transfer belt unit so that you can see the sensor unit. 8 Sensor shutter • Check if the sensor shutter is opening or closing normally. (Opening: 03-125 / Closing: 03- 175) If the sensor shutter is not opening or closing, check if it is damaged or there is any abnormality in the sensor shutter solenoid. * If the shutter is opened (03-125), close the shutter (03-175). • Check the connector and the harness between the sensor shutter solenoid and the LGC board. (LGC CN337-8pin, 9pin) • Slide the sensor shutter so that the sensor surface can be seen. Clean the sensor surface with a cotton swab or a soft cloth. Clean the area around the sensor (e.g.: sensor shutter) if it is stained, so that the sensor surface does not become dirty. 9 Image quality sensor Check the connectors and harnesses between the LGC board (CN366) and the image quality sensor. * 10 • Is +5V power supply voltage normally supplied to the image quality sensor? • Is +5V voltage normally output by the CN345-7pin on the LGC board? Yes 13 No 11 11 Switching power supply Check if +5V voltage is output by the switching power supply (PS-ACC CN404-7pin). 12 LGC board • Check if +5V voltage is output by the C33 + terminal on the LGC board. • Check if the supply harness between the switching power supply and the LGC board is open circuited, damaged or disconnected. 19* 13 Set the values of "Image quality closed-loop control / Contrast voltage (08-2486)" to "0" (Invalid). 14 Perform “Enforced performing of image quality open-loop control (05-2740)”. 15 Output the image quality control test pattern (04-270) more than one time and the list print ([9][START]). Is the image normal? Yes 17 No 16 16 Abnormal image Correct the 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. 18 17 Replace the image quality sensor or the LGC board. 18 Set the values of “Image quality closed-loop control / Contrast voltage (08-2486)” to “1” (Valid). 19 Perform "Forced performing of image quality closed-loop control (05-2742)" and make sure it is completed normally. (Error [CE10], [CE20] and [CE40] do not appear.) Yes 21 No 20 20 Check and correct it accordingly. 21 Perform "Automatic gamma adjustment". 22 Reset all of the values in the codes “Abnormality detection count (Y/M/ C/K) Display/0 clearing (08-2528 to 08-2531)”.

• Code: CE40
• Description: Image quality control test pattern abnormality: The test pattern is not formed normally.
• Causes:
• Remedy: 1 Check if there is any abnormality on the hand grips and rods of the main charger cleaner. Correct if there is. 2 Check if the drum is rotated properly by turning the coupling of the developer unit. Correct the auger and the surrounding hardware if not. 3 LED head • Check the connectors and harnesses between the LGC board (CN380, CN381, CN382, CN383, CN384, CN385, CN386, CN387, CN592, CN593, CN594, CN595, CN596, CN597, CN598 and CN599) and theLED head. • Check if there is any stain or scratch on the LED head. Clean or correct if there is. 4 Check if there is any stain on the image quality sensor (Rear). 5 Check if the sensor shutter is working properly. 6 Transfer belt Check if the transfer belt is properly operated. (ON: 03-101 / OFF: 03-151) If the transfer belt rotates normally, check if any abnormal stains (cleaning defects), large scratches or breaking are on the surface of transfer belt by making full rotation of transfer belt. Replace the transfer belt if any. Check if the transfer belt is loose or heaving, and correct it if needed. If the transfer belt is not rotating normally, check if the drive gears are damaged or if it contacts the equipment or if the transfer belt cleaning unit is normal. Correct it if needed. 17* 7 Check if any of the springs for supplying power to the transfer belt unit is deformed. Replace the spring if it is deformed. 8 Use “Image quality control abnormal detection counter Y to K display/0 clearing (08-2528 to 2531)” to check the abnormal occurring condition for each color. 9 Check the first pattern detection value for each color of image quality sensor detection value (05- 2758-2 to 5), and identify the color of unit which causing test pattern abnormality. Identify the color of unit by check the value which exceeds "600". (Sub-code 2: Y, 3: M, 4: C, 5: K) 10 Check if the developer unit identified in step 9 has been installed properly. Visually check the installation status of the developer unit, and correct it if there is any abnormality. 17* 11 Set the values of "Image quality closed-loop control / Contrast voltage (08-2486)" to "0" (Invalid). 12 Perform "Enforced performing of image quality open-loop control (05-2740)". 13 Output several number of sheets of the image quality control test pattern (04-270) and the list print ([9][START]->101), and check the pattern of the color identified in step 9. Is the image normal? Yes 15 No 14 14 Abnormal image Correct the 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. 16 15 Replace the image quality sensor or LGC board. 16 Set the values of “Image quality closed-loop control / Contrast voltage (08-2486)” to “1” (Valid). 17 Perform “Forced performing of image quality closed-loop control (05-2742).” Is it completed normally? Yes 19 No 18 18 Check and correct it accordingly. 19 Perform "Automatic gamma adjustment". 20 Clear all “Image quality control abnormal detection counter Y to K display/0 clearing (08-2528 to 2531)”.