Xerox Phaser 6128 MFP

• Code: -07
• Description: Check Imaging Unit Error The Imaging Unit sealing tapes are present or the Imaging Unit is improperly seated.
• Causes: • Imaging Unit PL4.1.21 • MCU Board, PL10.7.7
• Remedy: 1 Remove the Imaging Unit and inspect for damage, debris, or sealing tapes. Does the error persist? Go to step 2. Complete. 2 Replace the Imaging Unit. NOTE Remove the 8 sealing tapes from the new Imaging Unit before installation. Does the error persist? Replace the MCU Board. Complete.

• Code: -08
• Description: Insert Imaging Unit Error An error occurred while reading the Imaging Unit CRUMs.
• Causes: • Imaging Unit PL4.1.21 • MCU Board, PL10.7.7 • Imaging Unit Harness, PL10.8.11
• Remedy: 1 Check the Imaging Unit CRUM harness. Disconnect P/J42 and P/J422 and check continuity. Is the harness damaged? Repair the harness. Go to step 2. 2 Replace the Imaging Unit. NOTE Remove the 8 sealing tapes from the new Imaging Unit before installation. Does the error persist? Replace the MCU Board. Complete.

• Code: -09
• Description: Front Cover Open Close Front Cover The Interlock Switch indicates the Front Cover is open. The following troubleshooting procedure applies to this error.
• Causes: • Front Cover, PL1.1.8 • Interlock Harness, PL10.6.4 • LVPS, PL10.6.16 • MCU Board, PL10.7.7 • LVPS Main Harness, PL10.8.14
• Remedy: 1 Check Interlock Switch operation. Run the Interlock Switch test (DI-07). Does the Switch operate? Replace the MCU Board. Go to step 2. 2 Check the Interlock Harness connections P/J14 and P/J501. Are the connections secure? Go to step 3. Secure the connections. 3 Check continuity of the LVPS Main Harness. Disconnect P/J14 from the MCU Board and P/J501 from the LVPS. Is the harness damaged? Repair the harness. Go to step 4. 4 Check for +24 V on P44 of the LVPS. Is there +24 V between P44-1 <=> ground? Go to step 5. Replace the LVPS. 5 Check the Interlock Switch signal. Does the voltage between P44-3 <=> ground change when the switch is closed? Replace the LVPS. Replace the Interlock Harness. 6 Replace the Interlock Switch Harness. Does the error persist? Replace the MCU Board. Complete.

• Code: -10
• Description: Side Door Open Close Side Door The Right Side Door Switch indicates the Right Side Door is open. The following troubleshooting procedure applies to this error.
• Causes: • Right Side Cover, PL1.1.7 • Right Side Door Switch, PL5.1.9 • Side Switch harness, PL5.1.27 • MCU Board, PL10.7.7
• Remedy: 1 Check Right Side Door Switch operation. Run the Side Switch test (DI-06). Does the switch operate? Replace the MCU Board. Go to step 2. 2 Check the Side Switch Harness connections P/J29 and P/J291. Are the connections secure? Go to step 3. Secure the connections. 3 Check continuity of the Side Switch Harness. Disconnect P/J29 from the MCU Board and P/J291 from the switch. Is the harness damaged? Repair the harness. Go to step 4. 4 Replace the Right Side Door Switch. Does the error persist? Replace the MCU Board. Complete.

• Code: -11
• Description: Scanner ADF Cover R Open The sensor at the ADF rear cover indicates the cover is open. This troubleshooting procedure applies to this error.
• Causes: • Image Processor Board, PL10.6.6 • ADF Assembly, PL10.10.1
• Remedy: 1 Check the ADF rear cover. Is the cover installed correctly and undamaged? Go to step 2. Repair or replace the ADF. 2 Check the connector P/J1003 on the I/P Board. Is the connection secure? Go to step 3. Secure the connector. 3 Replace the ADF Assembly. Does the error persist? Replace the I/P Board. Complete.

• Code: -12
• Description: Check Unit CTD Sensor Error The ADC Sensor has detected a density error for the indicated color. This troubleshooting procedure applies to this error.
• Causes: • Transfer Belt, PL6.1.7 • Left Side Harness, PL10.4.18 • MCU Board, PL10.7.7
• Remedy: 1 Check the Transfer Belt installation. Is the Transfer Belt correctly installed? Go to step 3. Reseat the Transfer Belt. Go to step 2. 2 Does the error still occur when the printer is turned On? Go to step 3. Complete. 3 Check connectors P/J28 and P/J281 between the MCU Board and Transfer Belt. Are the connectors secure? Go to step 4 Reconnect the connectors. 4 Check Left Side Harness continuity. Disconnect P/J28 from the MCU Board and P/J281 to the Transfer Belt. Is the harness damaged? Repair or replace the harness (PL10.4.18). Go to step 4. 5 Replace the Transfer Belt. Does the error persist? Replace the MCU Board. Complete.