Xerox 3450B - Phaser B/W Laser Printer, Service Manual, Page: 77 / 180

4-10 Phaser 3450 Laser Printer Service Manual
Jam At Top (Jam 1)
Paper jams in front of or just inside the Fuser Assembly.
Troubleshooting References
Procedure
Applicable Parts Wiring and Plug/Jack Map References
Exit Sensor Actuator
Registration Sensor Actuator
Fuser Assembly
Power Supply Board
Step Action and Questions Yes No
1
Is the Exit Sensor Actuator damaged or binding? Repair or
replace the
actuator and/or
sensor.
Go to Step 2.
2
Is the Registration Sensor Actuator damaged or
binding?
Repair or
replace the
actuator and/or
sensor.
Go to Step 3
3
Is paper wrapped around the Fuser rollers or
blocking Fuser exit?
Remove paper
and clean Fuser
rollers.
Go to Step 4.
4
Is Fuser operational, the Fuser Rollers turn
freely when the motor is on?
Go to Step 5. Replace Fuser
Assembly.
5
Use the embedded diagnostics to check the
Fuser Exit Sensor. Is the sensor operational?
Replace Power
Supply Board.
Replace Fuser
Exit Sensor.