• Code: SC18-42#
• Description: When the upper limit sensor (PS109) or the lower limit sensor (PS101) is OFF, PS109 or PS101 does not turn ON within a specified period of time after the paper lift motor (M100) turns ON for its lifting or lowering operation. And at this time, an error detection signal (blowout of ICP) is detected.
• Causes: Paper lift motor (M100) DC power supply /2 (DCPS2) LU drive board (LUDB) Lower limit sensor (PS101) Upper limit sensor (PS109) Loose connection

• Code: SC18-43#
• Description: When the upper limit sensor (PS109) or the lower limit sensor (PS101) is OFF, PS109 or PS101 does not turn ON within a specified period of time after the paper lift motor (M100) turns ON for its lifting or lowering operation. And at this time, an error detection signal is not detected.
• Causes: Paper lift motor (M100) LU drive board (LUDB) Lower limit sensor (PS101) Upper limit sensor (PS109) Loose connection

• Code: SC18-51#
• Description: When the upper limit sensor / bypass (PS23) or the lower limit sensor /bypass (PS43) is OFF, PS23 or PS43 does not turn ON within a specified period of time after the bypass tray lift motor (M22) turns ON for its lifting or lowering operation. And at this time, an error detection signal (24V cut off) is detected.
• Causes: Bypass tray lift motor (M22) Printer control board (PRCB) Upper limit sensor /Bypass (PS23) Lower limit sensor /Bypass (PS43) DC power supply /2 (DCPS2) Loose connection

• Code: SC18-52#
• Description: When the upper limit sensor / bypass (PS23) or the lower limit sensor /bypass (PS43) is OFF, PS23 or PS43 does not turn ON within a specified period of time after the bypass tray lift motor (M22) turns ON for its lifting or lowering operation. And at this time, an error detection signal (blowout of ICP) is detected.
• Causes: Bypass tray lift motor (M22) Printer control board (PRCB) Upper limit sensor /Bypass (PS23) Lower limit sensor /Bypass (PS43) DC power supply /2 (DCPS2) Loose connection

• Code: SC18-53#
• Description: When the upper limit sensor / bypass (PS23) or the lower limit sensor /bypass (PS43) is OFF, PS23 or PS43 does not turn ON within a specified period of time after the bypass tray lift motor (M22) turns ON for its lifting or lowering operation. And at this time, an error detection signal is not detected.
• Causes: Bypass tray lift motor (M22) Printer control board (PRCB) Upper limit sensor /Bypass (PS23) Lower limit sensor /Bypass (PS43) DC power supply /2 (DCPS2) Loose connection

• Code: SC21-01
• Description: • When the charge cleaning home sensor (PS41) is OFF with the main power switch (SW1) ON, PS41 does not turn ON within a specified period of time after the charge cleaning motor (M23) turns ON for home position research operation (return operation). At this time, an error detection signal (blowout of ICP) is not detected. • PS41 does not turn OFF within a specified period of time after the reverse operation (return operation) is started. At this time, an error detection signal (blowout of ICP) is not detected. • It is checked that the time for the M23 operations is over. The charge cleaning limit sensor (PS42) does not turn ON within a specified period of time after the reverse operation (return operation) is started for detection of PS41 being OFF. Or, PS41 does not turn ON within a specified period of time after PS42 turns ON. At this time, an error detection signal (blowout of ICP) is not detected.
• Causes: Charge cleaning motor (M23) Printer control board (PRCB) Charge cleaning home sensor (PS41) Charge cleaning limit sensor (PS42) Wiring harness broken Loose connection

• Code: SC21-02
• Description: • The blowout of ICP for the charge cleaning motor (M23) in the printer control board (PRCB) is checked. When the charge cleaning home sensor (PS41) is OFF with the main power switch (SW1) ON, PS41 does not turn ON within a specified period of time after the M23 turns ON for home position research operation (return operation). And at this time, an error detection signal (blowout of ICP) is detected. • PS41 does not turn OFF within a specified period of time after the reverse operation (return operation) is started. And at this time, an error detection signal (blowout of ICP) is detected. • The charge cleaning limit sensor (PS42) does not turn ON within a specified period of time after the reverse operation (return operation) is started for detection of PS41 being OFF. Or, PS41 does not turn ON within a specified period of time after PS42 turns ON. At this time, an error detection signal (blowout of ICP) is detected.
• Causes: Charge cleaning motor (M23) Printer control board (PRCB) Charge cleaning home sensor (PS41) Charge cleaning limit sensor (PS42) Wiring harness broken Loose connection

• Code: SC21-03
• Description: The locking of the charge cleaning motor (M23) is detected. A motor lock signal is detected while moving from the charge cleaning limit sensor (PS42) side to the charge cleaning home sensor (PS41) side, and after a retry operation, a fifth motor lock signal is detected.
• Causes: Charge cleaning motor (M23) Printer control board (PRCB) Charge cleaning home sensor (PS41) Charge cleaning limit sensor (M23) Charging/cleaning member