• Code: CD40
• Description: Toner bag full
• Remedy: (1) Check the toner bag. • Is the toner bag full? (2) Check thetoner bag full detection sensor (S11). • Is the tone full detection sensor working properly? • Is the connector not disconnected? (3) Check the used toner transport motor. • Is the used toner transport motor driving? • Does the pulley beside the motor become heavy when it is turned toward the direction of arrow (counterclockwise)? (4) Replace the LGC board. (5) Release the status counter. • Turn the power ON while pressing both the [0] and [8] keys. • Press the [START] key after inputting [476] with digital keys. • Change the status counter "1", "2" or "3" to "0" and press the [SET] or [INTERRUPT] key ([CD4] released). • Check if the copier becomes to a standby state normally when power is turned ON again. • In case that the used toner transport motor does not drive or [CD4] is not released when power is turned ON again, do the above procedure after manually turning the pulley beside the motor toward the direction of arrow (counterclockwise) several times.

• Code: CD50
• Description: Fuser unit
  Web motor signal path abnormality
• Remedy: (1) Check if the connector of the web motor and connector pins are not disconnected. (2) Check if the harness at the fuser unit is not open-circuited. (3) Check if the connector of the LGC board and connector pins are not disconnected. (4) Check if the harness between the connector of the LGC board and the fuser unit is not open circuited. (5) Replace the LGC board. (6) Replace the fuser unit.

• Code: CE50
• Description: Image quality control
  Temperature/humidity sensor abnormality: The output value of the temperature/humidity sensor is out of the specified range.
• Remedy: sensor (S7) disconnected? Is the harness between the LGC board and the temperature/humidity sensor disconnected? → YES → Connect the connector securely. Replace the harness. NO 1) Check the connection of the KEY1 board and DSP board. 2) Check the connection of the DSP board and LGC board. 3) Replace the temperature/humidity sensor. 4) Replace the LGC board.

• Code: CE90
• Description: Image quality control
  Drum thermistor abnormality: The output value of the drum thermistor is out of the specified range.
• Remedy: Is the connector CN337 on the LGC board, or the connector of the drum thermistor disconnected? Is the harness between the LGC board and the drum thermistor (THM5) disconnected? → YES → Connect the connector securely. Replace the harness. NO 1) Replace the drum thermistor. 2) Replace the LGC board.

• Code: CF70
• Description: New toner transport motor abnormality: The new toner transport motor does not run normally when new toner is supplied.
• Remedy: (1) Check if the transport auger and paddle are not locked (no extraneous material or toner clod in both the toner transport sections at the cleaner unit). (2) Is the new toner transport motor disconnected? (3) Check if the connector of the LGC board and connector Pins are not disconnected. (4) Replace the new toner transport motor. (5) Replace the LGC board.

• Code: CF80
• Description: Hopper motor lockup: The hopper motor does not run normally when the power is ON or the copying is started.
• Remedy: (1) Check if the recycle toner transport motor is not locked (no extraneous material or toner clod in both the toner transport sections at the recycle toner unit). (2) Is the disconnected? (3) Check if the connector of the LGC board and connector Pins are not disconnected. (4) Replace the hopper motor. (5) Replace the LGC board.

• Code: E010
• Description: Paper not reaching fuser transport sensor: Paper which has passed the fuser unit does not reach the fuser transport sensor.
• Remedy: Open the jam access cover. Is there any paper on the transport path or in the fuser unit? → YES → Remove the paper. NO Is the fuser transport sensor working? (Perform the input check in the test mode: 03-[FAX]OFF/[7]/[C]) ↓ → NO → 1) Check if the connector of the fuser transport sensor is disconnected. 2) Check if the connector CN332 on the LGC board is disconnected. 3) Check if the connector pins are disconnected and the harnesses are open circuited. 4) Check if the conductor pattern on the LGC board is short circuited or open circuited. 5) Replace the fuser transport sensor. 6) Replace the LGC board. YES Is the transfer belt working? ↓ → NO → 1) Check if the connector of the transport belt is disconnected. 2) Check if the connector on the transport motor driving PC board is disconnected. 3) Check if the connector CN341 on the LGC board is disconnected. 4) Check if the connector pins are disconnected and the harnesses are open circuited. 5) Check if the conductor pattern on the LGC board is short circuited or open circuited. 6) Replace the transport motor driving PC board. 7) Replace the LGC board. YES Is the drum separation finger solenoid working? (Perform the output check in the test mode: 03-111,161) ↓ → NO → 1) Check if the connector of the drum separation finger solenoid is disconnected. 2) Check if the connector CN339 on the LGC board is disconnected. 3) Check the installation state of cleaner. 4) Is the relay connector connecting the cleaner unit and the equipment disconnected or stained with toner? 5) Replace the drum separation finger solenoid. 6) Replace the LGC board. YES Is the registration sensor working? (Perform the input check in the test mode: 03-[FAX]ON/[4]/[E]) ↓ → NO → 1) Check if the connector of the registration sensor is disconnected. 2) Check if the registration sensor is installed correctly. 3) Check if the registration actuator is operating properly. 4) Check if the connector CN341 on the LGC board is disconnected. 5) Check if the connector pins are disconnected and the harnesses are open circuited. 6) Check if the conductor pattern on the LGC board is short circuited or open circuited. 7) Replace the registration sensor. 8) Replace the LGC board. YES Is the registration motor working? (Perform the output check in the test mode: 03-108/158) ↓ → NO → 1) Check if the connector of the registration roller clutch is disconnected. 2) Check if the connector CN341 on the LGC board is disconnected. 3) Check if the connector pins are disconnected and the harnesses are open circuited. 4) Check if the conductor pattern on the LGC board is short circuited or open circuited. 5) Replace the registration roller clutch. 6) Replace the LGC board. YES Check if there is any abnormality in the space between the registration motor and the registration roller (metal). Check if the registration roller (rubber) is rotating smoothly. Check the condition of the registration roller at the horizontal transport section and clean or replace it. * If the error [E010] caused by a paper jam underneath the drum cleaner often occurs due to an insufficient paper separation from the photoconductive drum, set a smaller value in the code 08-841, and see what happens. At this time, however, pay attention to the transferability at the leading edge of the paper since this transferability can be slightly narrowed depending on the environments and conditions under which the equipment is placed or the media type of the paper used. (Refer to 3.6.1 in this manual about the details of the code 08-841.)

• Code: E020
• Description: Paper stopping at fuser transport sensor: The trailing edge of paper does not pass the fuser transport sensor after its leading edge has reached the fuser transport sensor.
• Remedy: Is the fuser transport sensor working? (Perform the input check in the test mode: 03-[FAX]OFF/[7]/[C]) ↓ → NO → 1) Check if the connector of the fuser transport sensor is disconnected. 2) Check if the connector CN332 on the LGC board is disconnected. 3) Check if the connector pins are disconnected and the harnesses are open circuited. 4) Check if the conductor pattern on the LGC board is short circuited or open circuited. 5) Replace the fuser transport sensor. 6) Replace the LGC board. YES Is the reverse motor driving? (Perform the output check in the test mode: 03-126) ↓ → NO → 1) Check if the connector of the reverse transport unit is not disconnected. 2) Check if the connector CN335 on the LGC board is not disconnected. 3) Check if the connector pins are not disconnected and the harness is not open circuited. 4) Check if the conductor pattern on the LGC board is not short- or open-circuited. 5) Replace the LGC board YES 1) Check if the separation finger for the fuser unit is working normally. 2) Replace the LGC board