• Code: E020-0003
• Description: The developing assembly is out of toner. The buffer motor rotation is faulty. The toner feed motor (sub hopper) rotation is faulty. After correcting the fault, be sure to reset the error. (COPIER>FUNCTION>CLEAR>ERR)
  The absence of toner inside the buffer is detected for 210 sec or more even when there is toner inside the sub hopper and after toner supply operation of that buffer following the replacement of the toner bottle.
• Remedy: Disconnect and connect the connector (J504, J511) of the DC controller PCB. Replace the buffer motor (M18). Replace the following: magenta roller drive clutch (CL1), toner transport motor (sub hopper; M22), toner transport clutch (sub hopper; CL23), buffer inside toner sensor (TS1), buffer inside toner lower limit sensor (TS2).

• Code: E020-0004
• Description: The developing assembly is out of toner. The buffer motor rotation is faulty. The toner feed motor (sub hopper) rotation is faulty. After correcting the fault, be sure to reset the error. (COPIER>FUNCTION>CLEAR>ERR)
  The absence of toner inside he buffer is detected for 150 sec or more even when there is toner inside the buffer and after toner supply operation has been executed for the buffer following the replacement of the toner bottle.
• Remedy: Disconnect and connect the connector (J504, J511) of the DC controller PCB. Replace the buffer motor (M18). Replace the following: magenta roller drive clutch (CL1), toner transport motor (sub hopper; M22), toner transport clutch (sub hopper; CL23), buffer inside toner sensor (TS1), buffer inside toner lower limit sensor (TS2).

• Code: E020-0005
• Description: The developing assembly is out of toner. The buffer motor rotation is faulty. The toner feed motor (sub hopper) rotation is faulty. After correcting the fault, be sure to reset the error. (COPIER>FUNCTION>CLEAR>ERR)
  When installation mode (COPIER>FUNCTION>INSTALL>TONER-S) is executed, the developing assembly inside toner sensor does not detect the presence of toner
• Remedy: Disconnect and then connect the connector (J504) of the DC controller PCB. Replace the developing assembly inside toner sensor (TS3).

• Code: E020-0006
• Description: The developing assembly is out of toner. The buffer motor rotation is faulty. The toner feed motor (sub hopper) rotation is faulty. After correcting the fault, be sure to reset the error. (COPIER>FUNCTION>CLEAR>ERR)
  When installation mode (COPIER>FUNCTION>INSTALL>TONER-S) is executed, the developing assembly inside toner sensor detects the presence of toner, but it does not detect the presence for 600 sec or more thereafter.
• Remedy: Disconnect and then connect the connector (J504) of the DC controller PCB. Replace the developing assembly inside toner sensor (TS3).

• Code: E020-0007
• Description: The developing assembly is out of toner. The buffer motor rotation is faulty. The toner feed motor (sub hopper) rotation is faulty. After correcting the fault, be sure to reset the error. (COPIER>FUNCTION>CLEAR>ERR)
  When installing mode (COVER>FUNCTION>INSTALL>TONER-S) is executed, the buffer inside toner sensor does not detect the presence of toner for 60 sec or more.
• Remedy: Disconnect and connect the connector (J504, J511) of the DC controller PCB. Replace thetoner transport motor (sub hopper; M22), toner transport clutch (sub hopper; CL23), buffer inside toner sensor (TS1).

• Code: E020-0008
• Description: The developing assembly is out of toner. The buffer motor rotation is faulty. The toner feed motor (sub hopper) rotation is faulty. After correcting the fault, be sure to reset the error. (COPIER>FUNCTION>CLEAR>ERR)
  When the toner feed motor (sub hopper) is driven, a fault is detected for 3 sec or more for the motor.
• Remedy: Disconnect and connect the connector (J511) of the DC controller PCB. Replace the toner feed motor (sub hopper; M22).

• Code: E020-0009
• Description: The developing assembly is out of toner. The buffer motor rotation is faulty. The toner feed motor (sub hopper) rotation is faulty. After correcting the fault, be sure to reset the error. (COPIER>FUNCTION>CLEAR>ERR)
  There is a fault in the rotation of the buffer motor.
• Remedy: Disconnect and then connect the connector (J504) of the DC controller PCB. Replace the buffer motor (M18).

• Code: E020-0010
• Description: The developing assembly is out of toner. The buffer motor rotation is faulty. The toner feed motor (sub hopper) rotation is faulty. After correcting the fault, be sure to reset the error. (COPIER>FUNCTION>CLEAR>ERR)
  The power has been turned off and then on without resetting the error.
• Remedy: Reset the error. (COPIER>FUNCTION>CLEAR>ERR)