Repair Analysis Procedures
Phaser® 3500 Laser Printer Service Manual
2-16
Output Tray Is Full 
2.
1. Use diagnostics to check the laser 
motor function.
2. Did the laser motor fail?
Replace the Laser 
Unit.
Replace the Main 
Board.
Step Actions and Questions Yes No
1.
1. Check the Output Tray sensor and 
actuator for obvious damage.
2. Is the actuator damaged?
Replace the actuator. Go to Step 2.
2.
1. Use diagnostics to test the output tray 
sensor.
2. Does the sensor operate correctly?
Replace the Main 
Board.
Replace the Output 
Tray  S enso r.
Step Actions and Questions Yes No