• Code: 024-371
• Description: MCU Comm Error 024-371 Communication has failed between the MCU and IP Boards.
• Causes: • IP Board, PL7.1.9/7.1.16 • MCU Board, PL7.2.2
• Remedy: 1 Reseat connections to the Image Processor and MCU Boards then cycle system power; Does the error persist? Go to step 2. Complete. 2 Check the Image Processor Harness continuity. Disconnect the I/P Board P/J402 and the MCU Board P/J22. Is the harness damaged? Replace the harness. Go to step 3. 3 Replace the I/P Board. Does the error persist? Replace the MCU Board. Complete

• Code: 024-958
• Description: Paper Size Mismatch The size of paper in the Main Paper Tray, or Bypass Tray, does not match the specified print size.
• Causes: • Registration Sensor, PL2.3.5 • Harn assy rkn sns, PL2.2.25 • MCU Board, PL7.2.2
• Remedy: • Check that the correct paper is in the paper tray. Change the paper if necessary. • Cycle printer power. • If the problem persists, follow this procedure.
  1 Check connectors P/J12 and P/J120 between the MCU Board and the Registration Sensor. Are the connections secure? Go to step 3. Securely reconnect the connectors, then go to step 2. 2 Does the error still occur when printing? Go to step 3. Complete. 3 Does the error persist? Go to step 5. Complete. 4 Disconnect the MCU Board P/J12 and the Registration Sensor P/J120. Check the harness assy rkn sns for continuity. Is the harness damaged? Repair the harness. Go to step 5. 5 Disconnect the MCU Board P/J12. Is the voltage across ground and J12-1 +3.3VDC? Replace the Registration Sensor. Replace the MCU Board.

• Code: 024-963
• Description: No Suitable Paper The Main Paper Tray, or Bypass Tray, has run out of paper, or the size (or type) of paper does not match the specified print size (or type).
• Causes: • Registration Sensor, PL2.3.5 • Harn assy rkn sns, PL2.2.25 • MCU Board, PL7.2.2
• Remedy: • Check that the correct paper is in the paper tray. Change, or load, the paper if necessary. • Cycle printer power. • If the problem persists, follow this procedure.
  1 Check P/J12 on the MCU Board and P/J120 on the Registration Sensor. Are the connections secure? Go to step 3. Securely reconnect the connectors, then go to step 2. 2 Does the error persist? Go to step 3. Complete. 3 Disconnect the MCU Board P/J12 and the Registration Sensor P/J120. Check the Harness assy rkn sns for continuity. Is the harness damaged? Repair the harness. Go to step 4. 4 Disconnect the MCU Board P/J12. Is the voltage across ground and J12-1 +3.3VDC? Replace the Registration Sensor. Replace the MCU Board.

• Code: 027-446
• Description: IPv6 Duplicate Duplicate IPv6 addresses detected upon startup.
• Causes: • IP Board, PL7.1.9 • MCU Board, PL7.2.2
• Remedy: 1 Replace the I/P Board. Does the error persist when the power is turned off and on? Replace the MCU Board. Complete.

• Code: 027-452
• Description: IPv4 Duplicate Duplicate IPv4 addresses detected upon startup.
• Causes:
• Remedy: 1 At the printer’s Control Panel, press the Menu key. Using the Up Arrow, Down Arrow, and OK keys, navigate to Admin Menu > Network Settings >TCP/IP > IPv4 > Get Address. Is Get Address set to Panel? The printer is trying to use an address that is being used by another device on the network. Change the printer’s address. Another device is trying to use the printer’s address. Find the other device and resolve the problem by changing the other device’s address.

• Code: 041-340
• Description: NVRAM Error
• Causes: • MCU Board, PL7.2.2
• Remedy: 1 Perform the Electrical Noise test. Does the error persist? Go to step 2. Complete. 2 Replace the MCU Board. Does the error persist when the power is turned on? Contact your designated field support for assistance. Complete.

• Code: 042-325
• Description: Motor Error The Main Drive Assembly has failed.
• Causes: • Main Drive Assembly, PL6.1.2 • Main Motor Harness, PL6.1.7 • MCU Board, PL7.2.2
• Remedy: 1 Check the connections between the MCU Board P/J16 and the Main Drive Assembly P/J160. Are the connections secure? Go to step 3. Reconnect the connectors, then go to step 2. 2 Does the error persist when the power is turned off and on? Go to step 3. Complete. 3 Is the Main Drive Assembly installed correctly? Go to step 6. Reseat the Main Drive Assembly, then go to step 5. 4 Does the error persist when the power is turned off and on? Go to step 6. Complete. 5 Check the Main Drive harness continuity. Disconnect P/J16 from the MCU Board and P/J160 from the Main Drive Assembly to check continuity. Is the harness damaged? Repair the harness. Go to step 7. 6 Check the power to the Main Drive Assembly. Disconnect connector P/J16 on the MCU Board. Are the voltages across ground at P/J16-2 and P/J16-4 approximately +24 VDC when the Interlock Switch is closed? Replace the Main Drive Assembly. Replace the MCU Board.

• Code: 042-358
• Description: Fan motor failure.
• Causes: • LVPS, PL 7.2.1 • Fan, PL 7.1.2 • MCU Board, PL7.2.2
• Remedy: 1 Check the connections between the FAN and LVPS. Is P/J205 on the LVPS securely connected? Go to step 2. Reconnect connector P/J205, then go to step 2. 2 Does the error persist? Go to step 3. Complete. 3 Disconnect P/J205 on the LVPS. Is the voltage across ground at P/J205-1 approximately +24 VDC when the Interlock Switch is pushed? Go to step 4. Replace the LVPS. 4 For the 6010N: Test the Fan (see “Using Phaser 6010N Service Diagnostics” on page 4-6). For the 6000: Test the Fan with the CE Diags Tool (see page A-14). Does the Fan function normally? Complete. Replace the MCU Board.