• Code: 008-164
• Description: POB Sensor Jam The POB Sensor did not detect paper after the Registration Clutch Energized.
• Remedy: Open the Left Cover Assembly (PL 2.9). Enter Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools > Printer Status Page > hold the Up and Down buttons simultaneously > Run Service Diagnostics > OK. Block and unblock the POB Sensor (PL 2.9). The display changes state. Y↓N→Check the circuit of the POB Sensor. Refer to Reflective Sensor Procedure for troubleshooting procedure. Perform the Registration Clutch test. The Registration Clutch (PL 2.6) energizes. Y↓N→Check the circuit of the Registration Clutch. Refer to OF 99-4 RAP for troubleshooting procedure. Open the Left Cover Assembly (PL 2.8). Actuate the Fuser Exit Switch (PL 2.8). The display changes state. Y↓N→Check the circuit of the Fuser Exit Switch. Refer to OF 99-3 RAP for troubleshooting procedure. Close the Left Cover Assembly. Perform the 2nd BTR Motor test. The 2BTR contacts and retracts. Y↓N→Go to RAP 009-342, 009-343, 2nd BTR Contact a Retract Failure troubleshooting procedure. Perform the Main Motor test. The Main Motor energizes. Y↓N→Check the circuit of the Main Motor. • Ensure that the connectors shown in the circuit diagrams ( ) are securely connected and that the wires are not damaged. • Replace the POB Sensor (PL 2.9).

• Code: 008-175
• Description: Tray 1 (MPT) Registration Sensor On Jam The Registration Sensor does not detect paper fed from Tray 1/MPT.
• Remedy: Open the Left Cover Assembly (PL 2.9). Enter Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools > Printer Status Page > hold the Up and Down buttons simultaneously > Run Service Diagnostics > OK. Block and unblock the Registration Sensor (PL 2.6). The display changes state. Y↓N→Check the circuit of the Registration Sensor. Refer to Reflective Sensor Procedure for troubleshooting procedure. Close the Left Cover Assembly. Perform Tray 1 Feed Solenoid test. The Tray 1 Feed Solenoid (PL 2.13) energizes. Y↓N→Check the circuit of the Tray 1 Feed Solenoid. Refer to OF 99-4 RAP for troubleshooting procedure. • Ensure that the connectors shown in the circuit diagrams ( ) are securely connected and that the wires are not damaged. • Replace the Registration Sensor (PL 2.6).

• Code: 008-176
• Description: Tray 2~5 Registration Sensor On Jam The Registration Sensor does not detect paper fed from Trays 2~5.
• Remedy: Open the Left Cover Assembly (PL 2.9) Enter Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools > Printer Status Page > hold the Up and Down buttons simultaneously > Run Service Diagnostics > OK. Block and unblock the Registration Sensor. The display changes state. Y↓N→Check the circuit of the Registration Sensor. Refer to Reflective Sensor Procedure for troubleshooting procedure. Perform Service Diagnostics. The Takeaway Motor (PL 1.1) rotates. Y↓N→Takeaway Motor (PL 1.1) energizes. Y↓N→Check the circuit of the Takeaway Motor. Refer to OF 99-9 RAP for troubleshooting procedure. Check the Takeaway Motor and its associated gears (PL 1.1) for damage, contamination or misalignment. Check the following: • Ensure that the Chute (PL 2.3) is properly seated and not damaged. • Check the Pinch Rolls (PL 2.3) for damage or contamination. • Ensure that the connectors shown in the circuit diagrams ( ) are securely connected and that the wires are not damaged. • Replace the Registration Sensor (PL 2.6).

• Code: 008-180
• Description: Duplex Registration Sensor On Jam The Registration Sensor does not detect paper after a duplex feed.
• Remedy: Open the Left Cover Assembly (PL 2.9). Enter Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools > Printer Status Page > hold the Up and Down buttons simultaneously > Run Service Diagnostics > OK. Block and unblock the Registration Sensor (PL 2.6). The display changes state. Y↓N→Check the circuit of the Registration Sensor. Refer to Reflective Sensor Procedure for troubleshooting procedure. Close the Left Cover Assembly and remove the Left Upper Cover (PL 2.7). Perform Duplex Motor test. The Duplex Transport Roll (PL 12.1) rotates. Y↓N→The Duplex Motor (PL 12.1) energizes. Y↓N→Check the circuit of the Duplex Motor. Refer to OF 99-6 RAP for troubleshooting procedure. Check the Duplex Motor and its associated pulleys and belts for damage, contamination or misalignment. Perform Service Diagnostics. The Inverter Reverse Clutch energizes. Y↓N→Check the circuit of the Inverter Reverse Clutch. Refer to OF 99-4 RAP for troubleshooting procedure. Perform Service Diagnostics. The Duplex Gate Solenoid energizes. Y↓N→Check the circuit of the Duplex Gate Solenoid. Refer to OF 99-4 RAP for troubleshooting procedure. • Check that the Duplex Chute (PL 2.8) is properly seated and not damaged. • Ensure that the connectors shown in the circuit diagrams ( ) are securely connected and that the wires are not damaged. • If the problem persists, replace the Duplex PWB (PL 12.1). Y↓N→Check the circuit of the Duplex Motor. Refer to OF 99-9 RAP for troubleshooting procedure. Check the Duplex Motor and its associated pulleys and belts for damage, contamination and misalignment. • Check the Duplex Wait Roll and Pinch Rolls for damage and contamination. • Ensure that the connectors shown in circuit diagrams ( ) are securely connected and that the wires are not damaged. • Ensure that the Duplex Chute (PL 2.8) is properly seated and not damaged. • If the problem persists, replace the Duplex PWB.

• Code: 008-181
• Description: Registration Sensor On Jam (Wait Sensor) The Registration Sensor does not detect paper after the Duplex Wait Sensor actuated.
• Remedy: Open the Left Cover Assembly (PL 2.9). Enter Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools > Printer Status Page > hold the Up and Down buttons simultaneously > Run Service Diagnostics > OK. Block and unblock the Registration Sensor (PL 2.6). The display changes state. Y↓N→Check the circuit of the Registration Sensor. Refer to Reflective Sensor Procedure for troubleshooting procedure. Close the Left Cover Assembly and open the Duplex Module Cover. Block and unblock the Duplex Wait Sensor. The display changes state. Y↓N→Check the circuit of the Duplex Wait Sensor. Refer to Transmissive Sensor Procedure for troubleshooting procedure. Close the Duplex Module Cover and remove the Left Upper Cover (PL 2.7). Perform Service Diagnostics. The Duplex Transport Roll (PL 12.1) rotates. Y↓N→The Duplex Motor (PL 12.1) energizes.

• Code: 008-184
• Description: Registration Sensor Off Jam The Fuser Exit Switch did not detect paper after the Registration Clutch was energized.
• Remedy: Open the Left Cover Assembly (PL 2.9). Enter Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools > Printer Status Page > hold the Up and Down buttons simultaneously > Run Service Diagnostics > OK. Actuate the Fuser Exit Switch (PL 2.8). The display changes state. Y↓N→Check the circuit of the Fuser Exit Switch. Refer to OF 99-3 RAP for troubleshooting procedure. Perform the Registration Clutch test. The Registration Clutch (PL 2.6) energizes. Y↓N→Check the circuit of the Registration Clutch. Refer to OF 99-4 RAP for troubleshooting procedure. Close the Left Cover Assembly. Perform the 2nd BTR Retract Motor test. The 2nd BTR Retract Motor (PL 2.9) energizes. Y↓N→Refer to RAP 009-342, 009-343, 2nd Contact or Retract Failure troubleshooting procedure. • Ensure that the connectors shown in the circuit diagrams ( ) are securely connected and that the wires are not damaged. • If the problem persists, replace the Duplex PWB (PL 12.1).

• Code: 008-620
• Description: Environmental Sensor Fail Environment Sensor not in range.
• Remedy: NOTE: Machine operation continues. Status Code not displayed on UI. Status Code logged in History. Turn the printer power Off. Disconnect the Environment Sensor (PL 1.3). Measure the resistance between the following: • I/F PWB J404-12 and J255-1 • I/F PWB J404-10 and J255-3 • I/F PWB J404-9 and J255-4 The Resistance is 1 ohm or less. Y↓N→Check the wires and connectors. If the check is OK, replace the replace Engine Control Board (MCU PWB) (PL 13.1). Measure resistance between P/J255-2 and P/J255-4 on Environment Sensor. 6k ohms to 20k ohms is measured. Y↓N→Replace the Environment Sensor (PL 1.3). Replace Engine Control Board (MCU PWB) (PL 13.1).

• Code: 008-622
• Description: RegiCon Data Overflow (A1 Patch X) At A1 patch detection, the XSO correction setting value for either Y, M, C, or K exceeds the setting range (NVRAM value 0 to 472).
• Remedy: Check the IBT Belt and Drum for a scratch or contamination. The check is OK. Y↓N→Replace as required. Perform RegiCon Adjustment procedure ADJ 9.10.