Description: Fuser Thermistor Errors Code T3: Fuser Belt Thermistor Short Circuit Code T4: Fuser Belt Thermistor Open Circuit Code T5: Fuser Belt Thermistor Temperature too High Code T6: Fuser Belt Thermistor Temperature too Low Code T7: Fuser Release Error Code T8: Fuser Belt Slack Error
Causes: • Fuser, PL1.1.21 • Engine Control Board, PL1.1.4
Remedy: 1 Check the Fuser for damage. Is the Fuser connector damaged? Replace the Fuser. Go to Step 2. 2 Check all pins on the FSRSNR Harness for continuity. Disconnect the FSRSNR Harness from the Engine Control Board HEATIF connector and Fuser connector. Is the harness conductive? Go to Step 6. Replace the FSRSNR Harness. 3 Check all pins on the FSRPWR Harness for continuity. Disconnect CN4 on the LVPS. Is the harness conductive? Replace the LVPS. If the error persists, replace the Engine Control Board. Replace the FSRPWR Harness.
Code: T30, T31
Description: RH Sensor Failure Code T30: Humidity Sensor Failure Code T31: Condensation detected in the printer.
Remedy: 1 Test the Temp/Humidity Sensor. 1. Run the Service Diagnostics Ambient Temp/Hum Sensor test. 2. Verify proper operation by blowing on the sensor. Is the sensor operating correctly? Replace the Engine Control Board. Go to Step 2. 2 Replace the Temp/Humidity Sensor. Does the error persist? Go to Step 3. Complete. 3 Check the ENV harness connection. Is the ENV Harness connected to the Front Sensor Board? Go to Step 4. Reconnect the harness. 4 Check all pins on the ENV Harness PL8.1.81 for continuity. 1. Disconnect ENV and P/J420. 2. Check continuity between ENV <=> J420. Go to Step 5. Replace the ENV Harness. 5 Check the Temp/Humidity Sensor signal. Is there voltage present at FSNS-15 when the sensor is active? Go to Step 6. Replace the Front Sensor Board. 6 Check all pins on the FSNS Harness PL4.2.98 for continuity. 1. Disconnect FSNS. 2. Check continuity on all contacts. Replace the Motor Driver Board. Replace the FSNS Harness.
Code: T32
Description: LED Over Temperature Failure
Causes: • LED Heads, PL1.1.2
Remedy: 1 Check for proper clearances around the printer and ensure proper fan operation. Is the printer properly installed and are the cooling vents clear? Go to Step 2. Advise customer on clearance for the printer. Replace an inoperable fan. 2 Check the LED Head installation. Are the LED Heads properly seated in their holders and the wiring correctly routed? Replace in the following order: LED Head, Engine Control Board. Reseat the LED Head or replace any damaged wiring.
Code: T34
Description: Motor Overheating Failure Code T34: Imaging Unit Motor Overheating
Causes: • Imaging Unit Motors • Motor Driver Board,
Remedy: 1 Test the cooling fans for proper operation and adequate airflow. Run the Service Diagnostic Fan tests. Do the fans operate correctly? Go to Step 2. Replace the defective fan. 2 Test the Imaging Unit Motors. Run the Service Diagnostics Imaging Unit Motor tests. Do the motors operate correctly? Replace the Motor Driver Board. Replace the defective motor.
Code: T40
Description: Transfer Unit Fan Failure
Causes: • Transfer Unit Fan, PL5.1.48 • Motor Driver Board, PL2.1.10
Remedy: 1 Test the Transfer Unit Fan. Run the Service Diagnostics Belt Fan test. Does the Fan operate correctly. Replace the Engine Control Board. Go to Step 2. 2 Check the Fan connection. Is BELTFAN on the Motor Driver Board securely connected? Go to Step 3. Connect the Fan. 3 Check for +24 V at the Fan connector. Disconnect the Fan from BELTFAN. Is there +24 V between BELTFAN-1 <=> ground? Replace the Fan. Go to Step 4. 4 Check for +24 V at the POW24 connector. Disconnect the POW24 Harness from the Motor Driver Board. Is there +24 V between POW24-1 <=> ground? Replace the Motor Driver Board. Go to Step 5. 5 Check continuity of the POW24 Harness. Is the wiring harness conductive? Replace the LVPS Replace the harness.
Code: T41
Description: Engine Cavity Fan Failure The rotation signal from the Card Cage Fan indicates the fan has stopped rotating.
Remedy: 1 Test the Card Cage Fan. Run the Service Diagnostics Chassis test. Does the Fan operate correctly. Replace the Engine Control Board. Go to Step 2. 2 Check the Fan connection. Is FAN on the Motor Driver Board securely connected? Go to Step 3. Connect the Fan. 3 Check for +24 V at the Fan connector. Disconnect the Fan from FAN. Is there +24 V between FAN-1 <=> ground? Replace the Fan. Go to Step 4. 4 Check for +24 V at the POW24 connector. Disconnect the POW24 Harness from the Motor Driver Board. Is there +24 V between POW24-1 <=> ground? Replace the Motor Driver Board. Go to Step 5. 5 Check continuity of the POW24 Harness. Is the wiring harness conductive? Replace the LVPS Replace the harness.
Code: TC1
Description: Jam Under Imaging Units Paper transport jam on Transfer Unit belt. Media reached the Transfer Unit Entrance Sensor, but did not reach the Media Slack Sensor on time.
Causes: • Transfer Unit Motor, PL2.1.86 • Transfer Unit, PL1.1.20 • Media Slack Sensor, PL9.1.77 • Registration Sensor Board, PL9.1.73 • Imaging Units, PL1.1.23
Remedy: 1 Check the following for evidence of fault or damage: • Transfer Unit • Media Slack Sensor Actuator • Transfer Unit Motor Is there any damage or debris? Replace any damaged parts. Go to Step 2. 2 Test the Media Slack Sensor. Run the Service Diagnostics Paper Slack test. Does the sensor function correctly? Go to Step 7. Replace the sensor. If the error persists, go to Step 3. 3 Check all pins on the DSNS Harness for continuity. Is the harness conductive? Go to Step 4. Replace the DSNS Harness. 4 Check for +5 V to the Media Slack Sensor. Disconnect DSNS from the Registration Sensor Board. Is there +5 V across DSNS-9 <=> ground? Go to Step 6. Go to Step 5. 5 Check for +5 V to the Registration Sensor Board. Disconnect the harness from CSNS on the Engine Control Board. Is there +5 V across CSNS-14 <=> ground? Go to Step 6. Replace the Engine Control Board. 6 Check all pins on the CSNS Harness for continuity Is the harness conductive? Replace the Registration Sensor Board. Replace the harness. 7 Test the Transfer Unit Motor. Run the Service Diagnostics Transfer Belt Motor test. Does the motor function correctly? Replace the Transfer Unit. Replace the motor.
Code: TC2
Description: Jam in Fuser Media reached the Media Slack Sensor, but did not clear the Fuser Exit Sensor on time. This error represents a jam inside the Fuser.
Remedy: 1 Check the following for evidence of fault or damage: • Fuser • Fuser Exit Actuator and Sensor • Fuser Motor Is there any damage? Replace any damaged parts. Go to Step 2. 2 Remove the Fuser and check for broken or bent connector pins or damaged gears. Repair or replace damaged parts. Go to Step 3. 3 Reinstall the Fuser. Does the error persist? Go to Step 4. Complete 4 Test the Fuser Exit Sensor. Run the Service Diagnostics Fuser Exit Sensor Test. Does the sensor function correctly? Go to Step 7. Replace the sensor. If the error persists, go to Step 5. 5 Check all pins on the SNS Harness for continuity. 1. Disconnect SNS from the Rear Sensor Board. 2. Check continuity between SNS<=>J140. Go to Step 6. Replace the SNS Harness. If the error persists, go to Step 6. 6 Check the HEATR signal to the Engine Control Board. 1. Disconnect RSNS from the Rear Sensor Board. 2. Actuate the Fuser Exit Sensor. Does the voltage across RSNS-6 <=> ground change? Replace the Engine Control Board. Replace the Rear Sensor Board. 7 If possible print one sheet of paper. Does the Fuser Motor turn? Inspect and replace defective gear(s). Go to Step 8. 8 Test the Fuser Motor. Run the Service Diagnostics Fuser Motor test. Does the Fuser Motor function correctly? Replace the Fuser. Go to Step 9. 9 Check for +24 V to the Fuser Motor. Disconnect DCHEAT on the Motor Driver Board. Is there +24 V across DCHEAT-3 <=> ground? Go to Step 10. Replace the Motor Driver Board. If the error persists, go to Step 10. 10 Replace the Fuser Motor. Does the Fuser Motor function correctly? Complete Go to Step 11. 11 Check the DRV0 and DRV1 ribbon cables that connect the Motor Driver Board to the Engine Control Board. Are these cables connected and undamaged? Replace the Engine Control Board. Replace the SVM1 and SVM2 Harnesses.
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