• Code: 12
• Description: 09-380 ERROR 12 YELLOW ATC SENSOR FAILURE
• Remedy: Note If this failure reoccurs three times successively, an Engine NVRAM value is set preventing further printer use until the NVRAM Access / Clear Tech Rep Fault / Clear <09-380 ~ 09-383> is run. Note If necessary, enter Service Diagnostics Mode and run the “Clear Tech Rep Fault” procedure. Remove the Rear Cover and Rear Shield. Measure the voltage at P534-2 on the Engine Control Board. Does the voltage measure between +1 VDC and +3 VDC? Y↓N→ Measure the voltage at P534-3 on the Engine Control Board. Does the voltage measure +5 VDC? Y↓N→ Replace the Engine Control Board. Remove the Rear Cover and Rear Shield. Measure the voltage at P534-1 on the Engine Control Board. Does the voltage measure 0 VDC? Y↓N→ Replace the Engine Control Board. Remove the Print Cartridge Plate Cover. Inspect the wiring harness between the Engine Control Board and the Developer Housing Assembly. Is the wiring harness in good condition? Y↓N→ Repair or replace as necessary. Replace the Developer Housing Assembly. Replace the Engine Control Board. Note Run approximately 10 pages of solid fill full-page prints of this primary color to ensure this error is cleared.

• Code: 120, 121
• Description: 12-260 12-262 FINISHER ERROR 120 EJECT CLAMP HOME SENSOR ON FAILURE FINISHER ERROR 121 EJECT CLAMP HOME SENSOR OFF FAILURE
• Remedy: Remove the Finisher Rear Cover. Remove the sensor from the top of the eject motor mount bracket. Enter Service Diagnostics Mode. From the Main Menu, select “Sensor Tests/Finisher Sensors/Miscellaneous.” Manually actuate the Eject Clamp Home Sensor and observe the display. Does display indicate the Eject Clamp Home Sensor toggling between H & L? Y↓N→ Remove the Rear Cover and the Board Cover. Measure the voltage between the Finisher Control Board P849-5 and Finisher frame ground. Again manually actuate the Stack Height Sensor. Does the voltage toggle between +5 VDC and 0 VDC? Y↓N→ Measure the voltage at the Eject Clamp Home Sensor pin 2 (yellow) and Finisher frame ground. Once again manually actuate the Eject Clamp Home Sensor. Does the voltage toggle between +5 VDC and 0 VDC? Y↓N→ Measure the voltage at Eject Clamp Home Sensor pin 1 (gray). Does the voltage measure +5 VDC? Y↓N→ Measure the voltage between the Finisher Control Board P849-6and Finisher frame ground. Does the voltage measure +5 VDC? Y↓N→ Replace the Finisher Control Board. Repair or replace the wiring harness between the Finisher Control Board and the Eject Clamp Home Sensor. Measure the voltage at the Eject Clamp Home Sensor pin 3 (violet) and Finisher frame ground. Does the voltage measure 0 VDC? Y↓N→ Measure the voltage between the Finisher Control Board P849-4 and Finisher frame ground. Does the voltage measure 0 VDC? Y↓N→ Replace the Finisher Control Board. Repair or replace the wiring harness between the Finisher Control Board and the Eject Clamp Home Sensor. Replace the Eject Clamp Home Sensor. Repair or replace the wiring harness between the Finisher Control Board and the Eject Clamp Home Sensor. Replace the Finisher Control Board. Replace the Finisher Control Board.

• Code: 122
• Description: 12-267 FINISHER ERROR 122 DECURLER FAILURE
• Remedy: Remove the Finisher Rear Cover. Enter Service Diagnostics Mode. From the Main Menu, select “Sensor Tests/Finisher Sensors/Miscellaneous Manually rotate the Decurler Cam Shaft such that the photo interrupter toggles the Decurler Cam Home Sensor. Does the display indicate the Decurler Cam Home Sensor toggling between H & L? Y↓N→ Remove the Rear Cover and the Board Cover. Measure the voltage between the Finisher Control Board P849-2 and Finisher frame ground. Again manually rotate the Decurler Cam Shaft such that the photo interrupter toggles the Decurler Cam Home Sensor. Does the voltage toggle between +5 VDC and 0 VDC? Y↓N→ Measure the voltage at the Decurler Cam Home Sensor pin 2 (yellow) and Finisher frame ground. Once again manually rotate the Decurler Cam Shaft such that the photo interrupter toggles the Decurler Cam Home Sensor. Does the voltage toggle between +5 VDC and 0 VDC? Y↓N→ Measure the voltage at Decurler Cam Home Sensor pin 1 (gray). Does the voltage measure +5 VDC? Y↓N→ Measure the voltage between the Finisher Control Board P849-3 and Finisher frame ground. Does the voltage measure +5 VDC? Y↓N→ Replace the Finisher Control Board. Repair or replace the wiring harneMeasure the voltage at the Decurler Cam Home Sensor pin 3 (violet) and Finisher frame ground. Does the voltage measure 0 VDC? Y↓N→ Measure the voltage between the Finisher Control Board P849-1 and Finisher frame ground. Does the voltage measure 0 VDC? Y↓N→ Replace the Finisher Control Board. Repair or replace the wiring harness between the Finisher Control Board and the Decurler Cam Home Sensor. Replace the Decurler Cam Home Sensor. Repair or replace the wiring harness between the Finisher Control Board and the Decurler Cam Home Sensor. Replace the Finisher Control Board. Replace the Finisher Control Board.ss between the Finisher Control Board and the Decurler Cam Home Sensor.

• Code: 123
• Description: 12-281 FINISHER ERROR 123 SET CLAMP FAILURE
• Remedy: Remove the Finisher Rear Cover. Enter Service Diagnostics Mode. From the Main Menu, select “Sensor Tests/Finisher Sensors/Miscellaneous.” Manually operate the Set Clamp Solenoid [see illustration in or. Rotate the Set Clamp Shaft (above the solenoid to enable manual operation of the Set Clamp Home Sensor) and observe the display for toggling between H and L of the Set Clamp Home Sensor. Does the display toggle between H & L? Y↓N→ Remove the Board Cover. Measure the voltage between the Finisher Control Board P849-8 and Finisher frame ground. Rotate the Set Clamp Shaft (above the solenoid to enable manual operation of the Set Clamp Home Sensor) and observe the display for toggling between H and L of the Set Clamp Home Sensor. Does the voltage toggle between +5 VDC and 0 VDC? Y↓N→ Measure the voltage at the Set Clamp Sensor pin 2 (yellow) and Finisher frame ground. Rotate the Set Clamp Shaft (above the solenoid to enable manual operation of the Set Clamp Home Sensor) and observe the display for toggling between H and L of the Set Clamp Home Sensor. Does the voltage toggle between +5 VDC and 0 VDC? Y↓N→ Measure the voltage at Set Clamp Sensor pin 1 (gray). Does the voltage measure +5 VDC? Y↓N→ Measure the voltage between the Finisher Control Board P849-9 and Finisher frame ground. Does the voltage measure +5 VDC? Y↓N→ Replace the Finisher Control Board. Repair or replace the wiring harness between the Finisher Control Board and the Front Corner Sensor. Measure the voltage at the Set Clamp Sensor pin 3 (violet) and Finisher frame ground. Does the voltage measure 0 VDC? Y↓N→ Measure the voltage between the Finisher Control Board P849-7 and Finisher frame ground. Does the voltage measure 0 VDC? Y↓N→ Replace the Finisher Control Board. Repair or replace the wiring harness between the Finisher Control Board and the Set Clamp Sensor. Replace the Set Clamp Sensor. Repair or replace the wiring harness between the Finisher Control Board and the Set Clamp Sensor. Replace the Finisher Control Board. Replace the Finisher Control Board.

• Code: 124
• Description: 12-350 FINISHER ERROR 124 COMMUNICATION FAILURE
• Remedy: There are no diagnostics routines or test procedures for problems involving serial communications. It is recommended to address the following suspect components/assemblies in order. • Replace the Finisher Control Board. • Replace the Engine Controller Board. • Perform a continuity check on the pertinent wires / harnesses involved in serial communication between the Printer and the Finisher [Refer to the Printer and Finisher Wiring Diagrams].

• Code: 124
• Description: 07-250 TRAY COMMUNICATION FAILLURE
• Remedy: Check the voltage on the Tray Module PWB between J 555-1 and ground. Is the voltage +5VDC? Y↓N→ Using the wiring diagrams, check and repair the +5VDC circuits to Tray Module PWB J555-1. Check the voltage on the Tray Module PWB between J 555-3 and ground. Is the voltage +24VDC? Y↓N→ Using the wiring diagrams, check and repair the +24VDC circuits to Tray Module PWB J555-3. Do all of the resistances indicate continuity? Y↓N→ Check for broken wires or bad contacts on connections that are not 1 ohm or less. Change the following parts in the order of priority as listed: 1. Interface Board 2. Tray Module Circuit Board 3. Engine Control Board 4. Image Processor Board Turn off the power. Check for continuity between the following points: • From MCU PWB J407-B10 to Tray Module PWB J541-7. • From MCU PWB J407-B9 to Tray Module PWB J541-9. • From MCU PWB J407-B11 to Tray Module PWB J541-5. • From MCU PWB J407-B12 to Tray Module PWB J541-4. Change the following parts in the order of priority as listed: 1. Interface Board 2. Tray Module Circuit Board 3. Engine Control Board 4. Image Processor Board

• Code: 125
• Description: 12-399 FINISHER ERROR 125 STAPLE MODE LOGIC FAILURE
• Remedy: There are no diagnostics routines or test procedures for problems involving serial communications. It is recommended to address the following suspect components/assemblies in order. • Replace the Stapler Assembly. • Replace the Finisher Control Board. • Perform a continuity check on the wiring harness between the Finisher Control Board and the Stapler [Refer to the Finisher Wiring Diagram].

• Code: 125
• Description: 009-910 (K) 009-911 (M) 009-912 (C) 009-913 (Y) TRAY COMMUNICATION FAILLURE
• Remedy: 1. Check the installation of the Print Cartridge. 2. Clear the Tech Rep Fault for errors 009-910 through 009-913 (refer to instructions below). 3. Try changing the indicated Print Cartridge. 4. Check for an open wire or poor contact between the Print Cartridge and the Engine Control Board. • Yellow, J-151 to J-405 • Magenta, J-152 to J-405 • Cyan, J-153 to J-405 • Black, J-154 to J-405 5. Replace the Eingine Control Board (. Prior to troubleshooting for an open circuit (step #4 above) or replacing the Engine Control Board (step #5 above), clear the Tech Rep Fault for any of these codes using the following procedure: 1. Enter Service Diagnostics. 2. Select NVRAM Acces and press OK. 3. Select Clear Tech Rep Faults and press OK. 4. Select link codes 009-910 through 009-913 and press OK.