No Paper In Tray [2][3][4][5][6] - Xerox Phaser 7400 Service Manual

No Paper in Tray [2][3][4][5][6]

The No Paper Sensor indicates that the named tray is empty.
Initial Actions:
Cycle the printer's power.
If the problem persists follow the procedure below.
Troubleshooting Reference Table
Applicable Parts
No Paper Sensor, PL4.2.89
No Paper Actuator, PL4.2.65
Troubleshooting Procedure Table
Step Actions and Questions
1 Fill the tray.
Does the error occur even if the tray is full?
2 Check the following for evidence of fault or
damage:
No Paper Sensor and actuator
Is there any damage?
3 Test the No Paper Sensor. for the affected
tray.
Run the Service Diagnostics No Paper
Sensor test.
Does the sensor function correctly?
4 Check the No Paper Sensor signal.
Does the voltage level change when the
sensor is actuated?
5 Check all pins on the TRYSNS1 Harness
for continuity.
Is the harness conductive?
3-178
Wiring and Plug/Jack References
Print Engine Map 12 (page 10-15)
Print Engine Feeder Board (page 10-28)
Options Map 5 Paper Tray Controller Board
Options Map 6 Paper Tray Feeder Board
Options Paper Tray Sensors and Interconnect
Yes
Go to Step 2.
Replace any
damaged parts.
Replace the Engine
Control Board
(page 8-112).
Go to Step 5.
Replace the Engine
Control Board
(page 8-112).
Phaser 7400 Color Printer Service Manual
No
Complete
Go to Step 3.
Go to Step 4.
Replace the No
Paper Sensor.
Replace the
TRYSNS1
Harness.