• Code: 312.900
• Description: Paper at Buffer Path Sensor. Control logic reports paper at the Buffer Path Sensor.
• Remedy: Check the following: • Paper on the Buffer Path Sensor • Obstructions in the paper path
  Enter dc330 Component Control [012-101], Buffer Path Sensor (PL 24.41 Item 10). Select Start. Actuate the Buffer Path Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Buffer Transport. Check the circuit of the Buffer Path Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • Finisher for a docking failure If the above checks are OK, then replace the Buffer Path Sensor. If the problem persists, replace the Finisher Main PWB.

• Code: 312.901
• Description: Paper at H-Transport Entrance Sensor. Control logic reports paper at the H-Transport Entrance Sensor.
• Remedy: • Paper on the H-Transport Entrance Sensor • Obstructions in the paper path • H-Transport Motor Belt for wear or damage • Guides on the H-Transport Cover for damage, wear or faulty installation
  Enter dc330 Component Control [012-190], H-Transport Entrance Sensor (PL 24.4 Item 12). Select Start. Open the H-Transport Cover and actuate the H-Transport Entrance Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Horizontal Transportation (1 of 2). Check the circuit of the H-Transport Entrance Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • H-Transport and Finisher for a docking failure • H-Transport Motor and its associated gears and belts for damage, contamination or misalignment If the above checks are OK, then replace the H-Transport Entrance Sensor (PL 24.4 Item 12). If the problem persists, replace the Finisher Main PWB.

• Code: 312.901
• Description: H-Transport Entrance Sensor Static Jam. Paper remains on the H-Transport Entrance Sensor.
• Remedy: Check the paper path. If no paper is found continue with this RAP. Clean the Sensor.
  Execute dc330 Component Control [012-190], H-Transport Entrance Sensor. Actuate the HTransport Entrance Sensor (PL 23.4). The display changes. Y↓ N→Check the wire between P/J8861 pin 2 and J8987 pin 6 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 J8987, pins 4 and 5 on the Finisher PWB (Horizontal Paper Transportation). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between J8987, pin 6 on the Finisher PWB and GND (Horizontal Paper Transportation). Actuate the H-Transport Entrance Sensor. The voltage changes. Y↓ N→Replace the H-Transport Entrance Sensor (PL 23.4). Replace the Finisher PWB. If the problem continues, replace the Finisher PWB.

• Code: 312.902
• Description: Paper at H-Transport Exit Sensor. Control logic reports paper at the H-Transport Exit Sensor.
• Remedy: Check the following: • Paper on the H-Transport Exit Sensor • Obstructions in the paper path • H-Transport Motor Belt for wear or damage • Guides on the H-Transport Cover for damage, wear or faulty installation
  Enter dc330 Component Control [012-191], H-Transport Exit Sensor (PL 24.6 Item 8). Select Start. Open the H-Transport Cover and actuate the H-Transport Exit Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Horizontal Transportation (2 of 2). Check the circuit of the H-Transport Exit Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged. • H-Transport and Finisher for a docking failure • H-Transport Motor and its associated gears and belts for damage, contamination or misalignment If the above checks are OK, then replace the H-Transport Exit Sensor. If the problem persists, replace the Finisher Main PWB.

• Code: 312.903
• Description: Paper at Compiler Exit Sensor. Control logic reports paper at the Compiler Exit Sensor.
• Remedy: • Paper on the Compiler Exit Sensor • Obstructions in the paper path
  Enter dc330 Component Control [012-150], Compiler Exit Sensor (PL 24.36 Item 3). Select Start. Open the H-Transport Cover and actuate the Compiler Exit Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Compiling. Check the circuit of the Compiler Exit Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged • Exit Motor Belt for wear or damage • Exit Pinch Rollers 1 and 2 for damage • Lower Exit Roller for wear or damage • Synchronous Belt for wear or damage If the above checks are OK, then replace the Compiler Exit Sensor. If the problem continues, replace the Finisher Main PWB.

• Code: 312.903
• Description: Paper Remains at Compiler Exit Sensor. Paper remains on the Compiler Exit Sensor.
• Remedy: Check the paper path. If no paper is found continue with this RAP. Clean the Sensor.
  Execute dc330 Component Control [012-150], Compiler Exit Sensor. Actuate the Compiler Exit Sensor (PL 23.14). The display changes. Y↓ N→Check the wire between J8869 pin 2 and P/J8988 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 P/J8988, pins 3 and 1 on the Finisher PWB (Finisher Paper Transportation). The voltage is approx. +5VDC. Y↓ N→Replace the Finisher PWB. Measure the voltage between P/J8988, pin 5 on the Finisher PWB and GND (Finisher Paper Transportation). Actuate the Compiler Exit Sensor. The voltage changes. Y↓ N→Replace the Compiler Exit Sensor (PL 23.14). Replace the Finisher PWB. If the problem continues, replace the Finisher PWB.

• Code: 312.905
• Description: Paper at Compiler Tray No Paper Sensor. Control logic reports paper at the Compiler Tray No Paper Sensor.
• Remedy: • Paper on the Compiler Tray Paper Sensor • Obstructions in the paper path
  Enter dc330 Component Control [012-151], Compiler Tray No Paper Sensor (PL 24.35 Item 3). Select Start. Actuate the Compiler Tray No Paper Sensor. The display changes. Y↓ N→Select Stop. Go to Finisher Compiling Check the circuit of the Compiler Tray No Paper Sensor. Refer to the Transmissive Sensor RAP for troubleshooting procedure. Select Stop. Check the following: • Ensure that the connectors shown in the circuit diagrams are securely connected and that the wires are not damaged • Exit Motor Belt for wear or damage • Exit Pinch Rollers 1 and 2 for damage • Lower Exit Roller for wear or damage • Synchronous Belt for wear or damage If the above checks are OK, then replace the Compiler Tray No Paper Sensor. If the problem continues, replace the Finisher Main PWB.

• Code: 312.905
• Description: Compiler Tray No Paper Sensor Static Jam. Paper remains on the Compiler Tray No Paper Sensor.
• Remedy: Check the paper path. If no paper is found continue with this RAP.
  Enter dc330 Component Control [012-151], Compiler Tray No Paper Sensor. Select Start. Actuate the Compiler Tray No Paper Sensor. The display changes. Y↓ N→Check the wire between J8880 pin 2 and J8984 pin 2 on the Finisher PWB 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 3 and 1 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 2 on the Finisher PWB and GND (Tamping Control (2 of 2)). Actuate the Compiler Tray No Paper Sensor. The voltage changes. Y↓ N→Replace the Compiler Tray No Paper Sensor (PL 23.12). Replace the Finisher PWB. If the problem continues, replace the Finisher PWB.