Xerox 4400DT Service Manual - Page 92

Stacker Full Troubleshooting Procedure (cont'd.) Step Actions and Questions Yes No 3 Lift and release the Stack Full Actuator a few times. Go to step 5. Replace Does the actuator move freely? Stack Full Actuator (RRP 10.12 on page 6-112) or Stack Full Sensor (RRP 10.13 on page 6-113), as necessary. 4 1. Replace paper in paper tray with fresh dry paper. Go to step 5. Problem 2. Run test prints. solved. Does the error code reappear? 5 1. Enter Service Diagnostics and select Sensor Tests. Replace Go to 2. Scroll to Stacker Full Sensor. 3. Manually actuate and deactuate the Stack Full Actuator. Engine Logic Stacker Full Board (RRP Sensor on 9.3 on page 3-37. Does the message on the display alternate page 6-89). between "Full" and "Not Full" as you lift and release the actuator (the count may have a short delay because of the sensor circuit)? Load Envelope Feeder with [paper size] [paper type]. (Envelope Feeder empty.) Load Envelope Troubleshooting Procedure Step Actions and Questions Yes No 1 1. Enter Service Diagnostics and select Sensor Tests. Replace the Go to step 2. 2. Scroll to Envelope No Paper and press OK. 3. Press and release the Envelope Feeder No Paper Sensor Actuator. Engine Logic Board (RRP 9.3 on Does the message on the display alternate page 6-89). between "With Paper" and "Without Paper" as you press and release the actuator? 2 1. Switch the Printer power OFF. Go to step 3. Go to Install 2. Remove the Left Interface Cover (RRP 1.1 on or Reseat the page 6-6), Left Cover (RRP 1.2 on page 6-7), and the Left Plate (RRP 1.11 on page 6-16). 3. Switch the Printer power-on. 4. On the Engine Logic Board check the voltage Envelope Feeder. on page 2-37. between P/J23 Pin 4 and the frame ground. Is the voltage 0.0 VDC? Phaser 4400 Laser Printer Service Manual 2-55