• Code: C2152
• Description: Transfer belt pressure welding alienation • At the completion of transfer belt pressure/ retraction operations, the pressure welding alienation sensor/K is not in the status corresponding to each of the transfer belt pressure/ retraction operations. • Even after a predetermined period of time has elapsed since the transfer belt starts pressure/retraction operation, the pressure welding alienation sensor/K is not in the status corresponding to each of the transfer belt pressure/retraction operations.
• Causes: Pressure welding alienation sensor/K (PS51) 1st image transfer pressure retraction motor (M21) Printer control board (PRCB)
• Remedy: 1 Check the M21 connector for proper connection and correct as necessary. 2 PS51 I/O check, sensor check PRCB CN21-1 (ON) C-23 3 M21 operation check PRCB CN20-1 to 4 K-8 4 Change M21 5 PRCB ICP4 conduction check 6 Change MFPB

• Code: C2163
• Description: PC charge (K) malfunction • When electrostatic charge output is ON, electrostatic charge leak detection system continues to detect leaks for a predetermined period of time.
• Causes: Imaging unit High voltage unit/1 (HV1) Printer control board (PRCB)
• Remedy: 1 Check the imaging unit for proper connection and correct as necessary. 2 Check the HV1 connector for proper connection and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 Change IU 5 Change HV1 6 Change PRCB

• Code: C2204
• Description: Waste toner agitating motor’s failure to turn • The waste toner agitating motor lock sensor continues to be blocked or unblocked for a predetermined period of time when the motor is turning.
• Causes: Waste toner agitating motor lock sensor (PS23) Waste toner agitating motor (M20) Printer control board (PRCB)
• Remedy: 1 Clean the PS23 if it has toner or paper dust, etc. 2 Change the waste toner box. 3 Check the M20 connector for proper connection and correct as necessary. 4 Check the connector of motor for proper drive coupling and correct as necessary. 5 M20 operation check PRCB CN23-1 to 4 C-8 to 9 6 Change M20 7 PRCB ICP3 conduction check 8 Change PRCB

• Code: C2257
• Description: Cleaner motor’s failure to turn • The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.
• Causes: Cleaner motor (M38) Printer control board (PRCB)
• Remedy: 1 Check the M38 connector for proper connection and correct as necessary. 2 Check the M38 connector for proper drive coupling and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 M38 operation check PRCB CN2-3 (REM) PRCB CN2-6 (LOCK) K-13 5 Change M38 6 PRCB ICP18 conduction check 7 Change PRCB

• Code: C2258
• Description: Cleaner motor’s turning at abnormal timing • The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary.
• Causes: Cleaner motor (M38) Printer control board (PRCB)
• Remedy: 1 Check the M38 connector for proper connection and correct as necessary. 2 Check the M38 connector for proper drive coupling and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 M38 operation check PRCB CN2-3 (REM) PRCB CN2-6 (LOCK) K-13 5 Change M38 6 PRCB ICP18 conduction check 7 Change PRCB

• Code: C2259
• Description: K developing motor’s failure to turn • The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.
• Causes: K developing motor (M19) Printer control board (PRCB)
• Remedy: 1 Check the M19 connector for proper connection and correct as necessary. 2 Check the M19 connector for proper drive coupling and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 M19 operation check PRCB CN34-1 (REM) PRCB CN34-4 (LOCK) K-2 5 Change M19 6 PRCB ICP14 conduction check 7 Change PRCB

• Code: C225A
• Description: K developing motor’s turning at abnormal timing • The motor lock signal remains LOW for a predetermined continuous period of time while the motor remains stationary.
• Causes: K developing motor (M19) Printer control board (PRCB)
• Remedy: 1 Check the M19 connector for proper connection and correct as necessary. 2 Check the M19 connector for proper drive coupling and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 M19 operation check PRCB CN34-1 (REM) PRCB CN34-4 (LOCK) K-2 5 Change M19 6 PRCB ICP14 conduction check 7 Change PRCB

• Code: C225B
• Description: K PC drum motor’s failure to turn • The motor lock signal remains HIGH for a predetermined continuous period of time while the motor is turning.
• Causes: K PC drum motor (M18) Printer control board (PRCB)
• Remedy: 1 Check the M18 connector for proper connection and correct as necessary. 2 Check the M18 connector for proper drive coupling and correct as necessary. 3 Check the PRCB connector for proper connection and correct as necessary. 4 M18 operation check PRCB CN35-10 (REM) PRCB CN35-13 (LOCK) K-2 5 Change M18 6 PRCB ICP14 conduction check 7 Change PRCB