SC400 (Engine: Around the Drum)

SC No.	Type	Error Name/Error Condition/Major Cause/Solution
SC441-00	D	Drum transfer motor: Lock
		Motor status is observed at 100ms intervals during motor ON, and the unlock status is detected at least 20 times.
		Motor defective Connector disconnected Harness broken Imaging IOB defective Unit torque increased.
		Replace the motor Reconnect the connector Replace the harness Replace the Imaging IOB (PCB2). Check the load on the motor (PCDU, Image transfer unit, Paper transfer unit, Waste toner bottle). Replace the PCDU, Image transfer unit, Paper transfer unit or Waste toner bottle.

SC No.	Type	Error Name/Error Condition/Major Cause/Solution
SC442-00	D	ITB Lift Error
		Even though the ITB contact and release motor (toner bottle drive motor (M) (M13) rotates, the ITB contact and release sensor (S32) failed to detect the specified sensor feeler status within specified time. Contact/separation operation: If not detected in 2000msec Home position operation: If not detected in 5000msec Signal detection sampling period: 10msec
		Image transfer unit not set/faulty setting Sensor dirt Sensor defective Motor defective Unit load large
		Reset the Image Transfer Belt Unit properly. Clean the ITB contact and release sensor (S32). Check the harness (disconnected, loose connectors). Replace the ITB contact and release sensor (S32). Replace the Image Transfer Belt Unit. Replace the contact/separation drive unit.

SC No.	Type	Error Name/Error Condition/Major Cause/Solution
SC452-00	D	Paper transfer contact and release motor error
		Even though the paper transfer contact and release motor (M18) rotates, the ITB contact and release sensor (S32) failed to detect the specified sensor feeler status within specified time. Contact operation: If not detected in 2000msecITB contact and release sensor (S32) Home position operation: If not detected in 5000msec Signal detection sampling period: 10msec
		Sensor dirt Sensor defection Motor defection Unit load large
		Replace the contact drive unit Replace the image transfer unit Check the harness

SC No.	Type	Error Name/Error Condition/Major Cause/Solution
SC491-00	D	High voltage power source: charge/development: output error
		SC detection signal (charge/development) is L (abnormal) for 200 ms consecutively during high voltage (charge/development) output.
		H/W error Output contact setting fault Controller connector set fault Ground fault of output high voltage path Surface/air clearance insufficient (arc discharge) Controller harness disconnection, short-circuit PCU setting fault Control board _IOB error (related signal error) HVP-CB error Load error Grounding fault of charging output, short-circuit with other outputs Surface/air clearance insufficient in charging output path (including distance from other outputs) Abnormal deterioration of drum, and over current due to pinholes Drum vs charge roller gap error (PCU error). Over current due to drum surface condensation Grounding fault of developing output, short-circuit with other outputs Surface/air clearance insufficient in developing output path (including distance from other outputs) Other
		Check if the SC occurs by turning the power OFF then ON. If the SC occurs again, do the following steps. Check if the SC reoccurs by cycling the power after each step. Reset the PCU. Replace the PCU. Reconnect the CN211 connector on the IOB. Reconnect the CN800 connector on the HVP-CB. Reset the HVP-CB. Replace the HVP-CB (PCB19). Replace the Imaging IOB (PCB2). Replace the harness between the IOB and HVP-CB.

SC No.	Type	Error Name/Error Condition/Major Cause/Solution
SC492-00	C	High voltage power source: image transfer/paper transfer: output error
		SC detection signal (transfer) is L (abnormal) for 200 ms consecutively during high voltage (transfer) output.
		H/W error Output power connector setting fault Controller connector setting fault Output high voltage Harness disconnection Controller harness disconnection, short-circuit Transfer unit setting fault Control board_ IOB error (related signal error) HVP-TTS error Load error Increase in paper transfer roller impedance (low temperature environment/impedance rise/impedance rise due to dirt) Operation fault of paper transfer contact mechanism Increase in image transfer belt impedance Opening in load power supply path
		Reset or replacement the harness of high voltage power supply feed path Reset or replace the harness between the imaging IOB (PCB2) and HVP-TTS. Reset or replace the transfer unit. Check operation of the contact mechanism. Replace the HVP-TTS (PCB16). Replace the Imaging IOB (PCB2).

SC No.	Type	Error Name/Error Condition/Major Cause/Solution
SC497-00	C	Machine temperature detection thermistor error
		Temperature sensor output error: Below 0.56V, or above 3.0V
		Connector disconnection or broken Sensor (Thermistor) defective
		Check if the SC occurs by turning the power OFF then ON. If the SC occurs again, do the following steps. Check if the SC reoccurs by cycling the power after each step. Check if all connectors related to the Imaging Temperature Sensor (Thermistor) (S33) are connected securely. Reconnect the connectors if they are disconnected, or loose. Replace the Imaging Temperature Sensor (Thermistor) (S33).

SC No.	Type	Error Name/Error Condition/Major Cause/Solution
SC498-00	C	Temperature and humidity sensor error
		Temperature sensor output error: Below 0.76V, or above 2.90V, or Moisture sensor output error: more than 2.4V
		Sensor not setting (disconnection or broken) Sensor defective
		Check if the SC occurs by turning the power OFF then ON. If the SC occurs again, do the following steps. Check if the SC reoccurs by cycling the power after each step. Check if all connectors related to the Temperature and Humidity Sensor (S41) are connected securely. Reconnect the connectors if they are disconnected, or loose. Replace the Temperature and Humidity Sensor (S41).