Xerox Phaser 6125 Service Manual page 159

Phaser 6125/6130 Color Laser Printer Service Manual
Troubleshooting Procedure Table (continued)
Step Actions and Questions
Check the Left Side Harness Assy for
5
continuity
Disconnect J23 from the MCU Board.
Disconnect J234 from the Photo
Sensor.
Is each cable of J23 <=> J234
continuous?
6 Check the power to the Tray No Paper
Sensor (Photo Sensor)
Disconnect J23 from the MCU Board.
Is the voltage across P23-9pin <=>
ground on the MCU Board, about +3.3
VDC?
7 Check the Tray No Paper Sensor
(Photo Sensor) for operation
Check the voltage across J23-11pin
<=> ground on the MCU Board.
Does the voltage change, when the
Tray No Paper Sensor actuator is
operated?
Error Messages and Codes
Yes No
Go to step 6. Replace the
Feeder Assy
(page 8-25) or
Left Side
Harness Assy
(page 8-26).
Go to step 7. Replace the
MCU Board
(page 8-59).
Replace the Replace the
MCU Board Photo Sensor.
(page 8-59).
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