• Code: 903.02
• Description: Service motor error CMY PC drive motor error The CMY PC cartridge drive motor does not rotate at the specified speed.
• Remedy: 1 Perform a POR. Does the error occur when the power is turned off/on? Go to step 2. Perform several print tests. If the problem remains, go to step 2. 2 Check the CMYK PC cartridge drive motor assembly for proper operation. Caution: When performing motor tests, ensure that all cover and door interlock switches are overridden. 1. Enter the Diagnostics Menu. 2. Touch MOTOR TESTS. 3. Touch Printer Motor Tests 4. Touch CMY cartridge drive motor Does the above component operate properly? Go to step 4. Go to step 3. 3 Check the CMYK PC cartridge drive motor assembly for proper connection. Is the above component properly connected? Replace the CMYK PC cartridge drive motor assembly. Go to “CMYK PC cartridge drive motor assembly removal”. Replace the connection. 4 Perform a POR. Does the error occur when the power is turned off/on? Replace the lower printer engine card assembly. Go to “Lower printer engine card assembly removal”. Problem solved.

• Code: 903.03
• Description: Service motor error Developer drive motor error The developer drive motor does not rotate at the specified speed.
• Remedy: 1 Perform a POR. Does the error occur when the power is turned off/on? Go to step 2. Perform several print tests. If the problem remains, go to step 2. 2 Check the CMY developer drive motor assembly for proper operation. Caution: When performing motor tests, ensure that all cover and door interlock switches are overridden. 1. Enter the Diagnostics Menu. 2. Touch MOTOR TESTS. 3. Touch Printer Motor tests 4. Touch CMY developer drive motor. Does the above component operate properly? Go to step 4. Go to step 3. 3 Check the CMY developer drive motor assembly for proper connection. Is the above component properly connected? Replace the CMY developer drive motor assembly. Go to “CMY developer drive motor assembly”. Replace the connection. 4 Perform a POR. Does the error occur when the power is turned off/on? Replace the lower printer engine card assembly. Go to “Lower printer engine card assembly removal”. Problem solved

• Code: 904.00
• Description: Service transfer belt Sensor (transfer belt HP) late error The sensor (transfer belt HP) does not detect the transfer belt home position in the specified time or the transfer belt is damaged or torn in half. If this error has occurred more than three times, it must be reset inside diagnostic mode before troubleshooting can begin or the machine can operate.
• Remedy: 1 Reset the transfer belt HP failure lock out condition. 1. Enter the Diagnostics Menu. 2. Touch Trans belt fail HP. 3. Touch Trans belt fail HP. Does the transfer belt appear damaged or torn in half? Go to step 3. Go to step 2. 2 Perform a POR. Does the error occur when the power is turned off/on? Go to step 3. Perform several print tests. If the problem remains, go to step 3. 3 Replace the transfer belt unit assembly. To to “Transfer belt unit assembly removal”. Does the error remain? Replace the lower printer engine card assembly. Go to “Lower printer engine card assembly removal”. Problem solved.

• Code: 904.01
• Description: Service transfer belt Transfer belt position failure
• Remedy: The transfer belt is out of correct position.

• Code: 904.02
• Description: Service transfer belt Sensor (transfer belt edge) failure The sensor (transfer belt edge detect) is not detecting the transfer belt edge properly.
• Remedy: 1 Check the transfer belt unit assembly for proper installation. Is the above component properly installed? Go to step 2. Re-install the transfer belt unit assembly. 2 Check the transfer belt unit assembly for damage. Is the above component free of damage to the frame and the belt? Go to step 3. Replace the transfer belt unit assembly. 3 Check the transfer belt steering motor assembly for proper operation. Caution: When performing motor tests, ensure that all cover and door interlock switches are overridden. 1. Enter the Diagnostics Menu. 2. Touch MOTOR TESTS. 3. Touch Printer Motor tests 4. Touch Transfer belt steering motor. Does the above component operate properly? Go to step 5. Go to step 4. 4 Check the transfer belt steering motor for proper connection. Is the above component properly connected. Replace the transfer belt steering motor. Go to “Transfer belt steering motor removal”. Replace the connection. 5 Perform a POR. Does the error occur when the power is turned off/on? Replace the lower printer engine card assembly. Go to “Lower printer engine card assembly removal”. Problem solved.

• Code: 904.03
• Description: Service transfer belt Sensor (2nd transfer roll retract HP) late error The sensing area of the sensor (2nd transfer roll retract HP) is not interrupted within the specified time when the 2nd transfer roll is moving to the home position.
• Remedy: 1 Perform a POR. Does the error occur when the power is turned off/on? Go to step 2. Perform several print tests. If the problem remains, go to step 2. 2 Check the sensor (2nd transfer roll HP) for proper operation. 1. Enter the Diagnostics Menu. 2. Touch Base Sensor Tests. 3. Touch Media Path. 4. Touch 2nd transfer roll retract HP. Does the display on the operator panel, change every time the sensing area of the above sensor is interrupted or blocked? Go to step 4. Go to step 3. 3 Check the sensor (2nd transfer roll HP) for proper connection. Is the above component properly connected? Replace the sensor (2nd transfer roll retract HP). Go to “Sensor (2nd transfer roll retract HP) removal”. Replace the connection. 4 Check the 2nd transfer roll retract motor for proper operation. 1. Enter the Diagnostics Menu. 2. Touch BASE SENSOR TESTS. 3. Touch Media Path. 4. Touch 2nd transfer roll retract HP. Does the above component operate properly? Go to step 6. Skip to step 5. 5 Check the 2nd transfer roll retract motor for proper connection. Is the above component properly connected? Replace the 2nd transfer roll retract motor assembly. Go to “2nd transfer roll retract motor assembly removal”. Replace the connection. 6 Perform a print test. Does the error continue? Replace the lower printer engine card assembly. Go to “Lower printer engine card assembly removal”. Problem solved. 7 Perform a POR. Does the error occur when the power is turned off/on? Replace the lower printer engine card assembly. Go to “Lower printer engine card assembly removal”. Problem solved.

• Code: 904.04
• Description: Service transfer belt Sensor (2nd transfer roll retract HP) lag error The sensing area of the sensor (2nd transfer roll retract HP) remains interrupted within the specified time when the 2nd transfer roll is moving from the home position.
• Remedy: 1 Perform a POR. Does the error occur when the power is turned off/on? Go to step 2. Perform several print tests. If the problem remains, go to step 2. 2 Check the sensor (2nd transfer roll HP) for proper operation. 1. Enter the Diagnostics Menu. 2. Touch Base Sensor Tests. 3. Touch Media Path. 4. Touch 2nd transfer roll retract HP. Does the display on the operator panel, change every time the sensing area of the above sensor is interrupted or blocked? Go to step 4. Go to step 3. 3 Check the sensor (2nd transfer roll HP) for proper connection. Is the above component properly connected? Replace the sensor (2nd transfer roll retract HP). Go to “Sensor (2nd transfer roll retract HP) removal”. Replace the connection. 4 Caution: Check the 2nd transfer roll retract motor for proper operation. When performing motor tests, ensure that all cover and door interlock switches are overridden. 1. Enter the Diagnostics Menu. 2. Touch MOTOR TESTS. 3. Touch Printer motor tests. 4. Touch 2nd transfer roll retract motor Does the above component operate properly? Go to step 6. Skip to step 5. 5 Check the 2nd transfer roll retract motor for proper connection. Is the above component properly connected? Replace the 2nd transfer roll retract motor. Go to Replace the connection. 6 Perform a print test. Does the error continue? Replace the lower printer engine card assembly. Go to “Lower printer engine card assembly removal”. Problem solved. 7 Perform a POR. Does the error occur when the power is turned off/on? Replace the lower printer engine card assembly. Go to “Lower printer engine card assembly removal”. Problem solved.

• Code: 904.05
• Description: Service transfer belt Sensor (CMY transfer roll retract HP) late error The sensing area of the sensor (CMY transfer roll retract HP) is not interrupted within the specified time when the 2nd transfer roll is moving to the home position.
• Remedy: 1 Perform a POR. Does the error occur when the power is turned off/on? Go to step 2. Perform several print tests. If the problem remains, go to step 2. 2 Replace the transfer belt unit assembly. Go to “Transfer belt unit assembly removal”. Does the error remain? Replace the lower printer engine card assembly. Go to “Lower printer engine card assembly removal”. Problem solved.