• Code: 1820
• Description: Paper feeder communication error (second cassette) A communication error from paper feeder is detected 10 times in succession.
• Remedy: Paper feeder 2 Check the wiring connection status with PF1, and if necessary, reconnect it.
  PF2 main PWB 1. Confirm that the wiring connector is firmly connected, and if necessary, connect the connector all the way in. PF2 main PWB (YC3) and PF1 main PWB (YC5,4) 2. If the wiring is disconnected, short-circuited or has ground fault, replace the wire. 3. Reinstall the PF firmware. 4. Replace the PF2 main PWB.
  PF1 main PWB Replace the PF1 main PWB.

• Code: 1830
• Description: Paper feeder communication error (third cassette) A communication error from paper feeder is detected 10 times in succession
• Remedy: Paper feeder 3 Check the wiring connection status with PF2, and if necessary, reconnect it.
  PF3 main PWB 1. Confirm that the wiring connector is firmly connected, and if necessary, connect the connector all the way in. PF3 main PWB (YC3) and PF2 main PWB (YC5,4) 2. If the wiring is disconnected, short-circuited or has ground fault, replace the wire. 3. Reinstall the PF firmware. 4. Replace the PF3 main PWB.
  PF2 main PWB Replace the PF2 main PWB.

• Code: 1900
• Description: Paper feeder 1 EEPROM error (first cassette) When writing the data, read and write data does not match 4 times in succession.
• Remedy: PF1 main PWB EEPROM 1. Unplug the power cord from the wall outlet, and wait five seconds. Then plug the power cord and then turn on the power switch. 2. Confirm that the wiring connector to the main unit is firmly connected, and if necessary, connect the connector all the way in. 3. Replace the PF1 main PWB.

• Code: 1910
• Description: Paper feeder 2 EEPROM error (second cassette) When writing the data, read and write data does not match 4 times in succession.
• Remedy: PF2 main PWB (EEPROM) 1. Unplug the power cord from the wall outlet, and wait five seconds. Then plug the power cord and then turn on the power switch. 2. Confirm that the wiring connector with the PF1 is firmly connected, and if necessary, connect the connector all the way in. 3. Replace the PF2 main PWB.

• Code: 1920
• Description: Paper feeder 3 EEPROM error (third cassette) When writing the data, read and write data does not match 4 times in succession.
• Remedy: PF3 main PWB (EEPROM) 1. Unplug the power cord from the wall outlet, and wait five seconds. Then plug the power cord and then turn on the power switch. 2. Confirm that the wiring connector with the PF2 is firmly connected, and if necessary, connect the connector all the way in. 3. Replace the PF3 main PWB.

• Code: 2101
• Description: Developer motor steadystate error (C,M,Y) After motor is stabilized, the stable signal is turned OFF for continuous 2 s.
• Remedy: Developer unit 1. Check that the developer roller can be rotated by hand, and if it is locked, replace the developer unit.
  Developer motor 1. Check if the couplings and gears rotate smoothly, and if necessary replace them. 2. Reconnect the connector if its connection is loose. 3. Check continuity within the connector wire. If none, replace the wire. Developer motor and Engine relay PWB (YC12) Engine relay PWB (YC1) and Main/ Engine PWB (YC4) 4. Replace the developer motor
  Engine relay PWB Replace the engine relay PWB.
  Main/Engine PWB 1. Check the engine firmware and upgrade to the latest version if necessary. 2. Replace the Main/Engine PWB.

• Code: 2111
• Description: Developer motor startup error (C,M,Y) After the motor starting, the stable signal is not turned ON within 3 s.
• Remedy: Developer unit 1. Check that the developer roller can be rotated by hand, and if it is locked, replace the developer unit.
  Developer motor 1. Check if the couplings and gears rotate smoothly, and if necessary replace them. 2. Reconnect the connector if its connection is loose. 3. Check continuity within the connector wire. If none, replace the wire. Developer motor and Engine relay PWB (YC12) Engine relay PWB (YC1) and Main/ Engine PWB (YC4) 4. Replace the developer motor
  Engine relay PWB Replace the engine relay PWB.
  Main/Engine PWB 1. Check the engine firmware and upgrade to the latest version if necessary. 2. Replace the Main/Engine PWB.

• Code: 2201
• Description: Drum motor CY steadystate error After motor is stabilized, the stable signal is turned OFF for continuous 2 s.
• Remedy: Drum unit C or Drum unit Y Check that the drum can be rotated by hand, and if it is locked, replace the drum unit C or drum unit Y.
  Defective connector cable or poor contact in the connector 1. Reconnect the connector if its connection is loose. 2. Check continuity within the connector wire. If none, replace the wire. Drum motor CY and Engine relay PWB (YC13) Engine relay PWB (YC1) and Main/Engine PWB (YC4
  Drive transmission system for the drum motor CY 1. Check if the couplings and gears rotate smoothly, and if not, clean or grease the gears. 2. Check broken couplings and gears, and replace if any.
  Drum motor CY Replace the drum motor CY.
  Engine relay PWB Replace the engine relay PWB.
  Main/Engine PWB Replace the Main/Engine PWB.