• Code: 312.211
• Description: Stacker Tray Fault. The Stack Height Sensor did not turn Off in 500msec after the Stacker Tray started to drive down. The Tray Height Sensor Lower did not turn On in 5000msec after the Stacker Tray started lifting up.
• Remedy: • The Stack Height Sensor for improper installation. • The Stack Height Sensor connectors for connection failure. • The Tray Height Sensor Lower for improper installation. • The Tray Height Sensor Lower connectors for connection failure. • The Elevator Motor for operation failure. • The Elevator Motor connectors for connection failure. • The Elevator Gear for deformation.
  Enter dc330 Component Control [012-061] Elevator Motor Down and [012-060] Elevator Motor Up (PL 24.31 Item 26), alternately. Select Start. The Elevator Motor runs. Y↓ N→Select Stop. Go to Finisher Stacker Drive. Check continuity between the Elevator Motor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Elevator Motor. If the problem continues, replace the Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.212
• Description: Stacker Tray Upper Limit Fault. The stacker has continued to elevate after the defined period of time has passed since Stacker No Paper Sensor is ON during stacker elevation.
• Remedy: • Check for obstructions under the tray. • Check the operation of the Stacker Height Sensor actuators. • Check the tray raise/lower mechanism for damage or contamination.
  Execute dc330 Component Control [012-264], Stacker Height Sensor 1. Actuate the Stacker Height Sensor 1. The display changes. Y↓ N→Check the wire between J8873 pin 2 and P/J8988 pin 17 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 16 and 18 on the Finisher PWB (Stacker Tray Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 17 on the Finisher PWB and GND (Stacker Tray Control). Actuate the Stacker Height Sensor 1. The voltage changes. Y↓ N→Replace the Stacker Height Sensor 1. Replace the Finisher PWB. Execute dc330 Component Control [012-265], Stacker Height Sensor 2. Block and unblock the Stacker Height Sensor 2. The display changes. Y↓ N→Check the wire between J8874 pin 2 and P/J8988 pin 20 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 19 and 21 on the Finisher PWB (Stacker Tray Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 20 on the Finisher PWB and GND (Stacker Tray Control).Actuate the Stacker Height Sensor 1. The voltage changes. Y↓ N→Replace the Stacker Height Sensor 2. Replace the Finisher PWB. Execute dc330 Component Control [012-263], Stacker Encoder Sensor. Manually rotate the Encoder (PL 23.7) to block and unblock the sensor. The display changes. Y↓ N→Check the wire between J8875 pin 2 and P/J8988 pin 23 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 22 and 24 on the Finisher PWB (Stacker Tray Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 3 on the Finisher PWB and GND (Stacker Tray Control). Manually rotate the Encoder (PL 23.7) to block and unblock the Stacker Encoder Sensor. The voltage changes. Y↓ N→Replace the Stacker Encoder Sensor (PL 23.7). Replace the Finisher PWB. Execute dc330 Component Control [012-262], Stacker No Paper Sensor. Block and unblock the Sensor (PL 23.7). The display changes. Y↓ N→Check the wire between J8872 pin 2 and P/J8988 pin 14 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 13 and 15 on the Finisher PWB (Stacker Tray Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 14 on the Finisher PWB and GND (Stacker Tray Control). Actuate the Stacker No Paper Sensor. The voltage changes. Y↓ N→Replace the Stacker No Paper Sensor (PL 23.7). Replace the Finisher PWB. Replace the Finisher PWB.

• Code: 312.212
• Description: Stacker Upper Limit Fault. When Stack Height Sensor 2 On was detected after the Stacker Tray had started lifting up.
• Remedy: • The Upper Limit SW for improper installation. • The Upper Limit SW connectors for connection failure. • The Elevator Motor for operation failure. • The Elevator Motor connectors for connection failure.
  Enter dc330 Component Control [012-061] Elevator Motor Down and [012-060], Elevator Motor UP (PL 24.31 Item 24), alternately. Select Start. The Elevator Motor runs. Y↓ N→Select Stop. Go to Finisher Stacker Drive. Check continuity between the Elevator Motor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Elevator Motor. If the problem continues, replace the Finisher Main PWB. Select Stop. Select [012-262], Stacker No Paper Sensor (PL 23.7 Item 32). Select Start. Block/unblock the Stacker No Paper Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Stacker Drive. Check continuity between the Stacker No Paper Sensor and Finisher PWB. The continuity check is OK, Y↓ N→Repair the open circuit or short circuit. Replace the Stacker No Paper Sensor (PL 23.7 Item 32). If the problem continues, replace the Finisher Main PWB. Select [012-260], Upper Limit Sensor (PL 24.31 Item 17). Block/unblock the Upper Limit Sensor. Select Start. The display changes. Y↓ N→Select Stop. Go to Finisher Stacker Drive. Check continuity between the Upper Limit Sensor and Finisher PWB. The continuity check is OK, Y↓ N→Repair the open circuit or short circuit. Replace the Upper Limit Sensor. If the problem continues, replace the Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.213
• Description: Stacker Tray Lower Limit Fault. Stacker descended lower than normal levels, below low limit height.
• Remedy: • Check for obstructions under the tray. • Check the operation of the Stacker Height Sensor actuators. • Check the tray raise/lower mechanism for damage or contamination.
  Height Sensor 1. The display changes. Y↓ N→Check the wire between J8873 pin 2 and P/J8988 pin 17 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 16 and 18 on the Finisher PWB (Stacker Tray Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 17 on the Finisher PWB and GND (Stacker Tray Control).Actuate the Stacker Height Sensor 1. The voltage changes. Y↓ N→Replace the Stacker Height Sensor 1 (PL 23.11). Replace the Finisher PWB. Execute dc330 Component Control [012-265], Stacker Height Sensor 2. Block and unblock the Stacker Height Sensor 2. The display changes. Y↓ N→Check the wire between J8874 pin 2 and P/J8988 pin 20 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 19 and 21 on the Finisher PWB (Stacker Tray Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 20 on the Finisher PWB and GND (Stacker Tray Control). Actuate the Stacker Height Sensor 1. The voltage changes. Y↓ N→Replace the Stacker Height Sensor 2 (PL 23.11). Replace the Finisher PWB. Execute dc330 Component Control [012-263], Stacker Encoder Sensor. Manually rotate the Encoder (PL 23.7) to block and unblock the sensor. The display changes. Y↓ N→Check the wire between J8875 pin 2 and P/J8988 pin 23 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 22 and 24 on the Finisher PWB (Stacker Tray Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 23 on the Finisher PWB and GND (Stacker Tray Control). Manually rotate the Encoder (PL 23.7) to block and unblock the Stacker Encoder Sensor. The voltage changes. Y↓ N→Replace the Stacker Encoder Sensor (PL 23.7). Replace the Finisher PWB. Execute dc330 Component Control [012-262], Stacker No Paper Sensor. Block and unblock the Sensor (PL 23.7). The display changes. Y↓ N→Check the wire between J8872 pin 2 and P/J8988 pin 14 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between P/J8988, pins 13 and 15 on the Finisher PWB (Stacker Tray Control). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 14 on the Finisher PWB and GND (Stacker Tray Control). Actuate the Stacker No Paper Sensor. The voltage changes. Y↓ N→Replace the Stacker No Paper Sensor (PL 23.7). Replace the Finisher PWB. Replace the Finisher PWB.

• Code: 312.213
• Description: Stacker Lower Limit Fault. When Lower Limit Sensor On was detected after the Stacker Tray had started driving down.
• Remedy: • The Upper Limit SW for improper installation • The Upper Limit SW connectors for connection failure • The Elevator Motor for operation failure • The Elevator Motor connectors for connection failure
  Enter dc330 Component Control [012-061] Elevator Motor Down and [012-060] Elevator Motor Up (PL 24.31 Item 26), alternately. Select Start. The Elevator Motor runs. Y↓ N→Select Stop. Go to Finisher Stacker Drive. Check continuity between the Elevator Motor and Finisher PWB. The continuity check is OK. Y↓ N→Repair the open circuit or short circuit. Replace the Elevator Motor. If the problem continues, replace the Finisher Main PWB. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.221
• Description: Front Tamper Home Sensor On Fault. After the Front Tamper started moving to the home position, the Front Tamper Home Sensor did not turn On within 800ms.
• Remedy: Manually operate the Tamper mechanism. The Tamper mechanism moves smoothly. Y↓ N→Replace the parts that are interfering with operation. Execute dc330 Component Control [012-220], Front Tamper Home Sensor. Manually operate the Tamper mechanism to block and unblock the sensor. The display changes. Y↓ N→Check the wire between J8881 pin 2 and J8984 pin 5 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between J8984, pins 6 and 4 on the Finisher PWB (Tamping Control (2 of 2)). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between J8984, pin 5 on the Finisher PWB and GND (Tamping Control (2 of 2)). Manually operate the Tamper mechanism to block and unblock the Front Tamper Home Sensor. The voltage changes. Y↓ N→Replace the Front Tamper Home Sensor. Replace the Finisher PWB. Alternately execute dc330 Component Control [012-020], Front Tamper Motor Front and [012- 023], Front Tamper Motor Rear. The Front Tamper Motor moves. Y↓ N→There is +24 VDC from J8984 pin 19 on the Finisher PWB to GND Y↓ N→There is +24 VDC from J8982 pin 4 on the Finisher PWB to GND Y↓ N→Go to Finisher Interlock Switching and check the +24V circuit feeding pin 4. Repair/reconnect as required. Replace the Finisher PWB. Check the wires between J8984, pins 18 ~ 22 on the Finisher PWB, and the Front Tamper Motor J8984 for an open or short circuit, or a loose or damaged connector. The wires are OK. Repair/reconnect as required. Replace the front Tamper Motor. If the problem persists, replace the Finisher PWB. Replace the Finisher PWB.

• Code: 312.221
• Description: Front Tamper Home Sensor On Fault. The Front Tamper Home Sensor did not turn On within the specified time after the Tamper Motor had started running.
• Remedy: • The Front Tamper Actuator for deformation • The Front Tamper Home Sensor for proper installation • The Front Tamper Home Sensor connectors • The Front Tamper Motor for proper operation • The Front Tamper Motor connectors
  Enter dc330 Component Control [012-020] and [012-023], Front Tamper Motor (PL 24.35 Item 6), alternately. Select Start. The Front Tamper Motor runs. Y↓ N→Select Stop. Go to Finisher Tamper Control. Check circuit of the Front Tamper Motor. Refer to Multiple Wire Motor RAP for troubleshooting procedure. Select Stop. Select [012-220], Front Tamper Home Sensor (PL 24.35 Item 2). Select Start. Actuate the sensor with a piece of paper. The display changes. Y↓ N→Select Stop. Go to Finisher Tamper Control. Check circuit of the Front Tamper Home Sensor. Refer to Transmissive Sensor RAP for troubleshooting procedure. Select Stop. If the problem continues, replace the Finisher Main PWB.

• Code: 312.223
• Description: Front Tamper Home Sensor Off Fault. After the Front Tamper started moving away from the home position, the Front Tamper Home Sensor did not turn Off within the specified time.
• Remedy: Manually operate the Tamper mechanism. The Tamper mechanism moves smoothly. Y↓ N→Replace the parts that are interfering with operation. Execute dc330 Component Control [012-220], Front Tamper Home Sensor. Manually operate the Tamper mechanism to block and unblock the sensor. The display changes. Y↓ N→Check the wire between J8881 pin 2 and J8984 pin 5 for an open or short circuit, or a loose or damaged connector. The wire is OK. Y↓ N→Repair/reconnect as required. Measure the voltage between J8984, pins 6 and 4 on the Finisher PWB (Tamping Control (1 of 2)). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between J8984, pin 5 on the Finisher PWB and GND (Tamping Control (1 of 2). Manually operate the Tamper mechanism to block and unblock the Front Tamper Home Sensor. The voltage changes. Y↓ N→Replace the Front Tamper Home Sensor. Replace the Finisher PWB. Alternately execute dc330 Component Control [012-020], Front Tamper Motor Front and [012- 023], Front Tamper Motor Rear. The Front Tamper Motor moves. Y↓ N→There is +24 VDC from J8984 pin 19 on the Finisher PWB to GND Y↓ N→There is +24 VDC from J8984 pin 4 on the Finisher PWB to GND Y↓ N→Go to Finisher Interlock Switching and check the +24V circuit feeding pin 4. Repair/reconnect as required. Replace the Finisher PWB. Check the wires between J8984, pins 18 ~ 22 on the Finisher PWB, and the Front Tamper Motor J8984 for an open or short circuit, or a loose or damaged connector. The wires are OK. Repair/reconnect as required. Replace the Front Tamper Motor. If the problem persists, replace the Finisher PWB. Replace the Finisher PWB.