Xerox 4400DT Service Manual - Page 75

Envelope Feeder Failure Troubleshooting Procedure (cont'd.) Step Actions and Questions Yes No 3 1. Switch the Printer power OFF. Replace the Go to step 4. 2. Remove the Envelope Feeder. Envelope 3. Check for continuity between J418 Pin 3 (Envelope Connector Assembly) and P/J23 Pin 4 on the Engine Logic Board. Feeder PWB (RRP 13.3 on page 6-159). Is there continuity between the two pins? 4 1. Remove the Front Cover (RRP 1.6 on page 6-11) Replace the Go to step 5. and the Left Front Cover (RRP 1.7 on page 6-12). 2. Check for continuity between P/J 41 Pin 6 on the Connector PWB and P/J 23 Pin 4. Envelope Connector Assembly Is there continuity between the two pins? (RRP 4.10 on page 6-56). 5 Check the Connector Harness Assembly for proper Replace the Repair or connection and for defective wires. Connector replace if Is the Harness in good condition? PWB (RRP 9.7 on necessary. page 6-94). Standard Output Tray is Full. Unload Paper. (Standard Output Tray Full) Error message indicates the output tray is full. Output Tray Full Troubleshooting Procedure Step Actions and Questions 1 Is there a paper stack in the standard bin actuating the Output Tray Full Sensor? 2 Is the paper curled? 3 Lift and release the Output Tray Full Actuator a few times. Does the actuator move freely? 4 Replace paper in paper tray with fresh dry paper. Run test prints. Does the error code reappear? Yes No Remove the Go to step 2. paper stack. Go to step 4. Go to step 3. Go to step 5. Replace Output Tray Full Actuator (RRP 6.8 on page 6-76) or Output Tray Full Sensor (RRP 6.6 on page 6-72), as necessary. Go to step 5. Problem solved. 2-38 Phaser 4400 Laser Printer Service Manual