• Code: 0970
• Description: 24V power down detect
• Remedy: Low voltage power supply PWB 1. Check that the interlock switch (ILSW) is turned on properly by the rear cover closing. 2. Check if there is a defective connection in the connector of the low voltage power supply PWB, and then check the 24V output from the main/ engine PWB (YC1-7, 8). 3. Replace the low voltage power supply PWB.
  Main/Engine PWB 1. Unplug the power cord from the wall outlet, and wait five seconds. Then plug in the power cord and then turn on the power switch. 2. Check that the connectors on the main/engine PWB are properly connected, and if not, re-connect them. 3. Replace the main/engine PWB.

• Code: 1810
• Description: Paper feeder Communication error No PF connection is detected after PF connection is detected at powerup PF detection.
• Remedy: Paper feeder Check the wiring connection status with the main unit, and if necessary, reconnect it.
  PF main PWB 1. Confirm that the wiring connector is firmly connected, and if necessary, connect the connector all the way in. DP main PWB - Main/Engine PWB (YC47) 2. If the wiring is disconnected, short-circuited or has a ground fault, replace the wire. 3. Replace the PF PWB.
  Main/Engine PWB 1. Check the engine firmware and upgrade to the latest version if necessary. 2. Replace the main/engine PWB.

• Code: 2200
• Description: Main motor steady-state error After the motor is stabilized, the ready signal is turned OFF for continuous 1 s.
• Remedy: Drum unit BK Check that the drum can be rotated by hand, and if it is locked, replace the drum unit BK.
  Defective connector cable or poor contact in the connector 1. Reconnect the connector if its connection is loose. 2. Check the continuity within the connector wire. If none, replace the wire. Main motor - Main/Engine PWB (YC11)
  Main motor drive transmission system 1. Check if the couplings and gears rotate smoothly, and if not, clean or grease the gears. 2. Check for broken couplings and gears, and replace if any are found.
  Main motor Replace the main motor.
  Main/Engine PWB Replace the main/engine PWB.

• Code: 2500
• Description: Paper feed motor error After the motor starting, the ready signal is not turned ON for continuous 2 s. In case the Ready signal does not turn ON 1s in succession after the motor is in the steady-state.
• Remedy: Defective connector cable or poor contact in the connector 1. Reconnect the connector if its connection is loose. 2. Check the continuity within the connector wire. If none, replace the wire. Paper feed motor - container relay PWB (YC11)
  Drive transmission system for the paper feed motor 1. Check if the rollers and gears rotate smoothly. If not, clean or grease the bushes and gears. 2. Check for broken gears and replace if any are found.
  Paper feed motor Replace the paper feed motor.
  Main/Engine PWB Replace the main/engine PWB.

• Code: 3100
• Description: Carriage error When turning the power on, or when the reading of the original document by table or DP scanning has completed, the home position sensor is not turned off, even if the home position sensor is on and the scanner carriage moves to the scanning direction. ?Or, the home position sensor does not turn on, even if the home position sensor is off and the scanner carriage moves to the return direction.
• Remedy: Scanner motor 1. Move the scanner by hand to check whether it smoothly moves. 2. Check that the scanner drive belt is not disengaged. 3. Confirm that the wiring connector is firmly connected, and if necessary, connect the connector all the way in. Scanner motor - Main/Engine PWB (YC19) 4. If the wiring is disconnected, short-circuited or has a ground fault, replace the wire. 5. Replace the scanner motor.
  Home position Sensor 1. Check that the sensor is correctly positioned. 2. Confirm that the wiring connector is firmly connected, and if necessary, connect the connector all the way in. Home position sensor - Main/Engine PWB (YC17) 3. Replace the home position sensor.
  CIS Replace the image scanner carriage and execute U411.
  Main/Engine PWB Replace the main/engine PWB.

• Code: 3200
• Description: CIS lamp error The white standard data obtained when the lamp is turned on at the time of an initialization is lower than the rated value.
• Remedy: CIS Replace the image scanner carriage and execute U411.
  Main/Engine PWB Replace the main/engine PWB.

• Code: 3210
• Description: DP CIS lamp error The white standard data obtained when the lamp is turned on at the time of an initialization is lower than the rated value. (M26 ppm model only)
• Remedy: DP CIS 1. Confirm that the wiring connector is firmly connected, and if necessary, connect the connector all the way in. DP CIS - Main/Engine PWB(YC4) 2. Replace DP CIS and execute U411.

• Code: 3300
• Description: CIS AGC error In case a normal input could not be obtained from the CCD at AGC.
• Remedy: CIS 3. Confirm that the wiring connector is firmly connected, and if necessary, connect the connector all the way in. CIS - Main/Engine PWB(YC18) 4. If the wiring is disconnected, short-circuited or has a ground fault, replace the wire. 5. Replace the image scanner carriage and execute U411.
  Main/Engine PWB Replace the main/engine PWB.