Xerox Phaser 7400

Error Messages and Codes 3-77
Top Output Tray Is Full, Unload Paper
The Full Stack Sensor indicates the output tray is full.
Initial Actions:
■ Ensure that the output tray is empty and the actuator is in the correct
position.
■ Cycle printer power.
■ If the problem persists, follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack References
■ Full Stack Sensor, PL11.1.39
■ Full Stack Sensor Actuator
■ SNS Harness, PL11.1.35
■ Print Engine Map 7 (page 10-10)
■ Print Engine Map 11 (page 10-14)
■ Print Engine Rear Sensor Board (page 10-29)
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1
Check the following for evidence of fault or
damage:
■ Full Stack Sensor
■ Full Stack Sensor Actuator
Replace the parts
concerned.
Go to Step 2.
2
Test the Top Output Tray Full Stack Sensor.
Run the Service Diagnostics Face Down
Stack Full Sensor test.
Does the sensor function correctly?
Replace the Engine
Control Board
(
page 8-112).
Go to Step 3.
3
Check the Full Stack Sensor connection.
Is P/J160 connected?
Go to Step 4. Reconnect the
sensor.
4
Replace the Top Output Tray Full Stack
Sensor.
Does the error persist?
Go to Step 5. Complete
5
Check all pins on the SNS Harness
PL5.3.28 for continuity.
Is the harness conductive?
Replace the Engine
Control Board
(
page 8-112).
Replace the SNS
Harness.