• Code: 009-360
• Description: Yellow Imaging Unit Communication Fail A communication failure with the Yellow Imaging Unit was detected.
• Remedy: 1 1. Replace the Imaging Unit reporting the error. 2. Does the error still appear? Go to step 2. Complete. 2 1. Remove the Imaging Unit from the problem location and inspect the connector. 2. Is the connector damaged? Replace the Imaging Unit Plate Assembly. Troubleshoot the wiring. If wiring is OK, replace the Engine Control Board (MCU PWB).

• Code: 009-361
• Description: Magenta Imaging Unit Communication Fail A communication failure with the Magenta Imaging Unit was detected.
• Remedy: 1 1. Replace the Imaging Unit reporting the error. 2. Does the error still appear? Go to step 2. Complete. 2 1. Remove the Imaging Unit from the problem location and inspect the connector. 2. Is the connector damaged? Replace the Imaging Unit Plate Assembly. Troubleshoot the wiring. If wiring is OK, replace the Engine Control Board (MCU PWB).

• Code: 009-362
• Description: Cyan Imaging Unit Communication Fail A communication failure with the Cyan Imaging Unit was detected.
• Remedy: 1 1. Replace the Imaging Unit reporting the error. 2. Does the error still appear? Go to step 2. Complete. 2 1. Remove the Imaging Unit from the problem location and inspect the connector. 2. Is the connector damaged? Replace the Imaging Unit Plate Assembly. Troubleshoot the wiring. If wiring is OK, replace the Engine Control Board (MCU PWB).

• Code: 009-363
• Description: Black Imaging Unit Communication Fail A communication failure with the Black Imaging Unit was detected.
• Remedy: 1 1. Replace the Imaging Unit reporting the error. 2. Does the error still appear? Go to step 2. Complete. 2 1. Remove the Imaging Unit from the problem location and inspect the connector. 2. Is the connector damaged? Replace the Imaging Unit Plate Assembly. Troubleshoot the wiring. If wiring is OK, replace the Engine Control Board (MCU PWB).

• Code: 009-380, 009-381, 009-382, 009-383
• Description: Y, M, C, K ATC Sensor Fail The ATC Sensor detects an insufficient amount of Developer. This procedure can be used for troubleshooting Chain Link code 009-380, 009-381, 009-382, or 009-383. NOTE: If this failure reoccurs three times successively, an Engine NVRAM value is set preventing further printer use until the Clear Tech Rep Faults () is performed.
• Remedy: 1 Is the problem toner and/or Developer empty? Replace the Tone or Developer. Go to step 2. 2 Is the ATC Sensor clean and free of dust, toner, or any other contaminates? Go to step 3. Clean the ATC Sensor. 3 1. Check the ATC Sensor wiring harness: • Yellow = P/J129 • Magenta = P/J130 • Cyan = P/J131 • Black = P/J132 2. Is the wiring harness or the sensor defective? Replace the ATC Sensor and/or wiring harness. Go to step 4. 4 1. Remove the Rear Cover. 2. Measure the voltage on the Engine Control Board at: • Yellow = P401B3 • Magenta = P401B8 • Cyan = P401A10 3. Is the voltage between +1 and +3 VDC? Replace the Engine Control Board (MCU PWB). Go to step 5. 5 1. Measure the voltage on the Engine Control Board at: • Yellow = P401B14 • Magenta = P401B11 • Cyan = P401A11 2. Is the voltage +5 VDC? Replace the Engine Control Board (MCU PWB). Go to step 6. 6 1. Measure the voltage on the Engine Control Board at: • Yellow = P405B2 • Magenta = P405B9 • Cyan - P405A9 2. Is the voltage 0 VDC? Replace the Engine Control Board (MCU PWB). Go go step 7. 7 1. Remove the Imaging Unit Plate Cover. 2. Inspect the wiring harness between the Engine Control Board and the Developer Housing Assembly. 3. Is the wiring harness defective? Replace the wiring harness. Replace the ATC Sensor. 8 Run approximately 10 pages of the Solid Fill full-page prints for this color to ensure the error is cleared.

• Code: 009-390
• Description: New Black Toner Cartridge The Control Logic did not detect New Black Cartridge CRUM.
• Remedy: Swap the Black CRUM Antenna PWB with the CRUM Antenna PWB of any other color. Does the Chain Link Error indicate a different color failure? Y↓N→Verify that the wiring has continuity between P407 on the Engine Control Board (MCU PWB) and the Black CRUM Antenna PWB (refer to BSD, Wiring Diagram ). If continuity is OK, replace the Engine Control Board (MCU PWB) (PL 13.1). Replace the Black CRUM Antenna PWB (PL 6.1).

• Code: 009-391
• Description: New Cyan Toner Cartridge The Control Logic did not detect New Cyan Cartridge CRUM.
• Remedy: Swap the Cyan CRUM Antenna PWB with the CRUM Antenna PWB of any other color. Does the Chain Link Error indicate a different color failure? Y↓N→Verify that the wiring has continuity between P407 on the Engine Control Board (MCU PWB) and the Cyan CRUM Antenna PWB (refer to BSD, Wiring Diagram ). If the continuity is OK, replace the Engine Control Board (MCU PWB) (PL 13.1). Replace the Cyan CRUM Antenna PWB (PL 6.1).

• Code: 009-392
• Description: New Magenta Toner Cartridge The Control Logic did not detect New Magenta Cartridge CRUM.
• Remedy: Swap the Magenta CRUM Antenna PWB with the CRUM Antenna PWB of any other color. Does the Chain Link Error indicate a different color failure? Y↓N→Verify that the wiring has continuity between P407 on the Engine Control Board (MCU PWB) and the Magenta CRUM Antenna PWB (refer to BSD, Wiring Diagram ). If continuity is OK, replace the Engine Control Board (MCU PWB) (PL 13.1). Replace the Magenta CRUM Antenna PWB (PL 6.1).