• Code: 146.03
• Description: Tray 3 error
• Remedy: 1 Check the cable connecting the option paper tray to the option connector on the back of the printer. Is the cable properly connected on both ends? Go to step 3 Go to step 2 2 Connect the cable properly at both ends. Does this fix the problem? Problem resolved. Go to step 3. 3 Check the option cable’s connection to CN 13 on the printhead controller board. Is it properly connected? Go to step 4. Go to step 5. 4 Check the option cable in the printer for continuity. Is there continuity? Go to step 5. Go to step 6. 5 Replace the option cable. Did this fix the problem? Problem resolved. Go to step 6. 6 Check CN120 on the expansion feeder controller for proper connectivity. Is it properly connected? Go to step 8. Go to step 7. 7 Reconnect the connection at CN120. Did this fix the problem? Problem resolved. Go to step 8. 8 Check the cable connecting CN103 and the paper full sensor for proper connectivity. Is the cable properly connected on both ends? Go to step 10. Go to step 9. 9 Re connect the cable at both ends. Did this fix the problem? Problem solved. Go to step 10. 10 Check the paper full sensor cable for continuity. Is there continuity? Go to step 12. Go to step 11. 11 Replace the paper full sensor cable. Did this fix the problem? Problem solved. Go to step 12. 12 Replace the paper full sensor. Did this fix the issue? Problem solved. Go to step 13. 13 Replace the expansion paper feeder controller board. Did this fix the issue? Problem solved. Go to step 14. 14 Check pins 6 and 7 on CN13 of the printer controller board for + 24V. Is the voltage correct? Contact your second level support. Replace the printer controller board

• Code: 146.04
• Description: Tray 4 error
• Remedy: 1 Check CN 121 on the first expansion paper feeder’s expansion feeder controller board for proper connectivity. Is it properly connected? Go to step 3. Go to step 2. 2 Reconnect the cable to CN 121. Did this fix the problem? Problem resolved. Go to step 3. 3 Check CN 120 on the second expansion paper feeder’s expansion feeder controller board for proper connectivity. Is it properly connected? Go to step 5. Go to step 4. 4 Reconnect the cable to CN 120. Did this fix the problem? Problem resolved. Go to step 5. 5 Check CN 103 on the second expansion paper feeder’s expansion feeder controller board for proper connectivity. Is it properly connected? Go to step 7. Go to step 6. 6 Reconnect the cable to CN 103. Did this fix the problem? Problem resolved. Go to step 7. 7 Replace the paper full sensor. Does this fix the problem? Problem resolved. Go to step 8. 8 Replace the expansion paper feeder controller board. Does this fix the problem? Problem resolved. Contact you second level support.

• Code: 146.05
• Description: Tray 5 error
• Remedy: 1 Check CN 121 on the second expansion paper feeder’s expansion feeder controller board for proper connectivity. Is it properly connected? Go to step 3. Go to step 2. 2 Reconnect the cable to CN 121. Did this fix the problem? Problem resolved. Go to step 3. 3 Check CN 120 on the third expansion paper feeder’s expansion feeder controller board for proper connectivity. Is it properly connected? Go to step 5. Go to step 4. 4 Reconnect the cable to CN 120. Did this fix the problem? Problem resolved. Go to step 5. 5 Check CN 103 on the third expansion paper feeder’s expansion feeder controller board for proper connectivity. Is it properly connected? Go to step 7. Go to step 6. 6 Reconnect the cable to CN 103. Did this fix the problem? Problem resolved. Go to step 7. 7 Replace the paper full sensor. Does this fix the problem? Problem resolved. Go to step 8. 8 Replace the expansion paper feeder controller board. Does this fix the problem? Problem resolved. Contact you second level support.

• Code: 149.01
• Description: Fuser / paper exit motor error
• Remedy: 1 Is the fuser / paper exit motor cable properly connected to the motor and CN16 on the engine board? Go to step 2 Connect the cables at both ends. 2 Check the cable for continuity. Is there continuity? Go to step 3. Replace the fuser/paper exit motor cable. 3 Replace the paper exit/fuser motor. Did this fix the problem? Problem solved. Go to step 4. 4 Replace the engine board. Did this fix the problem? Problem solved. Go to step 5. 5 Replace the printhead controller board. Did this fix the issue? Problem solved. Contact your second level support.

• Code: 171.01
• Description: Fuser fan error
• Remedy: 1 Is there anything obstructing the fan’s movement? Clear the obstruction. Go to step 2. 2 Check connector CN21 on the MDCONT board. Is it properly connected? Go to step 3 Reconnect the connectors. 3 Replace the fuser fan. Does this remedy the situation? Problem solved. Go to step 4. 4 Replace the engine controller board. Does this remedy the situation? Problem solved. Contact your second level support.

• Code: 172.01
• Description: Power supply unit fan error
• Remedy: 1 Is there anything obstructing the fan’s movement? Clear the obstruction. Go to step 2. 2 Check connector CN22 on the MDCONT board, and CN04 and CN05 on the LVPS. Are they properly connected? Go to step 3 Reconnect the connectors. 3 Replace the power supply fan. Does this remedy the situation? Problem solved. Go to step 4. 4 Replace the LVPS. See “Low volt power supply removal”. Does this remedy the situation? Problem solved. Go to step 5. 5 Replace the engine power supply cable. Does this remedy the situation? Problem solved Replace the engine controller board.

• Code: 173.01
• Description: Main unit fan error
• Remedy: 1 Is there anything obstructing the fan’s movement? Clear the obstruction. Go to step 2. 2 Check connector CN22 on the engine controller board. Is it properly connected? Go to step 3 Reconnect the connector. 3 Replace the main fan. Does this remedy the situation? Problem solved. Replace the engine controller board.

• Code: 174.01
• Description: Rear fan error
• Remedy: 1 Is there anything obstructing the fan’s movement? Clear the obstruction. Go to step 2. 2 Check connector CN26 on the engine controller board. Is it properly connected? Go to step 3 Reconnect the connector. 3 Replace the rear fan. Does this remedy the situation? Problem solved. Replace the engine controller board.