Xerox Phaser 7400

3-54 Phaser 7400 Color Printer Service Manual
Close Left Door D
The Door D Detect Sensor on the Duplex Unit indicates that Door D is open.
Initial Actions:
■ Ensure that the door is free of obstructions and fully closed.
■ Verify that the Detect Sensor Actuator is not broken.
■ Cycle printer power.
■ If the problem persists, follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack References
■ Door D Detect Sensor, PL16.1.6 ■ Print Engine Map 3 (page 10-6)
■ Options Map 4, Duplex Unit Controller Board
■ Options Duplex Unit Sensors and Interconnect Wiring
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1
Check the following for evidence of fault or
damage:
■ Door D Detect Sensor Actuator
■ Door D Detect Sensor
■ Door D
Is there any damage or misalignment?
Replace any
damaged parts.
Go to Step 2.
2
Test the Door D Detect Sensor.
Run the Service Diagnostics Door D test
for the appropriate tray.
NOTE: Door sensor tests are located under
the Interlock Switches sub-menu.
Does the switch function correctly?
Replace the Engine
Control Board
(
page 8-112).
Go to Step 3.
3
Replace the Door D Detect Sensor.
Does the error persist?
Replace the
DUPLEX Harness,
if the error persists,
replace the Duplex
Unit.
Complete.