• Code: C1301
• Description: Fan motor drive malfunction
  <When FS-529 is installed> • While the motor is rotating, the fan lock signal remains L for the set period of time.
• Remedy: 1 Check the connector between FM1-FSCB CN19 for proper connection and correct as necessary. 2 Check the connector of FM1 for proper drive coupling, and correct as necessary. 3 FM1 operation check. 4 Change FM1. 5 Change FSCB.

• Code: C1402
• Description: FS NVRAM memory error
  <When FS-529 is installed> • When the main power switch is turned ON, malfunctioning of the non-volatile memory on the FS control board (FSCB) is detected
• Remedy: 1 Disconnect and then connect the power cord. Turn OFF the main power switch, wait for 10 sec. or more, and turn ON the main power switch. 2 Rewrite the firmware. 3 Change FSCB.

• Code: C2201
• Description: Toner bottle motor’s failure to turn
  • The toner bottle home sensor (PS4) is not blocked even after the set period of time has elapsed after the toner bottle motor (M3) starts rotating. • The toner bottle home sensor (PS4) is not unblocked even after the set period of time has elapsed after the toner bottle motor (M3) starts rotating.
• Remedy: 1 Check the connector between M3-PRCB CN8 for proper connection and correct as necessary. 2 Check the connector between PS4-PRCB CN15 for proper connection and correct as necessary. 3 Check the M3 connector for proper drive coupling and correct as necessary. 4 PS4 I/O check, sensor check. 5 M3 operation check. 6 Change M3. 7 Change PRCB.

• Code: C2253
• Description: PC motor’s failure to turn
  • The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.
• Remedy: 1 Check the connector between M2-PRCB CN4 for proper connection and correct as necessary. 2 Check the M2 connector for proper drive coupling and correct as necessary. 3 M2 operation check. 4 Change M2. 5 Change PRCB.

• Code: C2254
• Description: PC motor’s turning at abnormal timing
  • The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary.
• Remedy: 1 Check the connector between M2-PRCB CN4 for proper connection and correct as necessary. 2 Check the M2 connector for proper drive coupling and correct as necessary. 3 M2 operation check. 4 Change M2. 5 Change PRCB.

• Code: C2350
• Description: Toner suction fan motor’s failure to turn
  • The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.
• Remedy: 1 Check the connector between FM4-relay CN43-PRCB CN6 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM4 operation check. 4 Change FM4. 5 Change PRCB.

• Code: C2557
• Description: Abnormally low toner density detected TCR sensor
  • When sampling data is determined in TC ratio calculation control, TCR sensor output is lower than a predetermined value for a predetermined number of times in a row even though there is toner in the sub hopper.
• Remedy: 1 Make sure that the following counter is cleared at the developer replacing. [Service Mode] - [Counter] - [Life] - [Developer Use Time] 2 Perform image troubleshooting procedure if image density is low. 3 Reinstall developing unit. 4 Reinstall toner bottle. 5 Check the contact of developing unit for proper connection and correct as necessary. 6 Check the connector between TCRSB CN29-relay CN28-PRCB CN24 for proper connection and correct as necessary. 7 Check the connector between M3-PRCB CN8 for proper connection and correct as necessary. 8 Check the connector between M4-relay CN13-PRCB CN8 for proper connection and correct as necessary. 9 M3 operation check. 10 M4 operation check. 11 Change developing unit. 12 Change TCRSB. 13 Change PRCB.

• Code: C2558
• Description: Abnormally high toner density detected TCR sensor
  • TC ratio in the developing unit, which is determined by toner replenishing amount control mechanism, is a predetermined value or more for a given number of times consecutively.
• Remedy: 1 Make sure that the following counter is cleared at the developer replacing. [Service Mode] - [Counter] - [Life] - [Developer Use Time] 2 Perform image troubleshooting procedure if image density is low. 3 Reinstall developing unit. 4 Reinstall toner bottle. 5 Check the contact of developing unit for proper connection and correct as necessary. 6 Check the connector between TCRSB CN29-relay CN28-PRCB CN24 for proper connection and correct as necessary. 7 Check the connector between M3-PRCB CN8 for proper connection and correct as necessary. 8 Check the connector between M4-relay CN13-PRCB CN8 for proper connection and correct as necessary. 9 M3 operation check. 10 M4 operation check. 11 Change developing unit. 12 Change TCRSB. 13 Change PRCB.