Xerox 5400N - Phaser B/W Laser Printer, Service Quick Reference Manual

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140 Phaser 5400 Laser Printer Service Guide
RAP 53 Tray 1 No Paper Sensor
Table 82 Tray 1 No Paper Sensor Troubleshooting Procedure
Step Actions and Questions Yes No
1
PROCEDURE
1. Remove Tray 1.
2. Enter Diagnostics mode.
3. From the Main Menu, select Component Test / Sensor
Input / press [4] to start, [0] to stop.
4. Actuate the Tray No Paper Sensor Actuator.
Does the LCD counter increment each time you
press and release the actuator?
It appears
the Tray 1
No Paper
Sensor is
working
correctly. If a
problem
persists,
replace the
Print Engine
Controller
Board
[RRP 8.5,
page 310 ].
Go to
Step 2.
2 TRAY 1 NO PAPER SENSOR ACTUATOR
INSPECTION
1. Manipulate the Tray 1 No Paper Sensor Actuator.
2. Visually inspect the Tray 1 No Paper Sensor Actuator.
Does the actuator move freely and appear to be
in good condition (not broken or damaged)?
Go to
Step 3. Replace the
Tray 1 No
Paper
Sensor
Actuator
[RRP 2.6,
page 266 ].
3 “YES” FROM STEP 2 ABOVE
1. Switch printer power OFF.
2. Remove the Left Side Cover [RRP 1.1, page 250 ] and
the Print Engine Controller Board Cover [RRP 8.5,
page 310 ].
3. Disconnect P/J12 from the Print Engine Controller
Board.
4. Switch printer power ON.
5. On the Print Engine Controller Board, measure the
voltage between P12-4 and frame ground, then
measure the voltage between P12-6 and frame
ground.
Do both voltages m3.28 VDC?
Go to
Step 4. Replace the
Print Engine
Controller
Board
[RRP 8.5,
page 310 ].
4 “YES” FROM STEP 3 ABOVE
1. Switch printer power OFF.
2. Remove the Left Side Cover [RRP 1.1, page 250 ] and
the Print Engine Controller Board Cover [RRP 8.5,
page 310 ].
3. Disconnect P/J12 from the Print Engine Controller
Board.
4. Switch printer power ON.
5. On the Print Engine Controller Board, measure the
voltage between P12-6 and frame ground.
Does the voltage between P12-6 and frame
ground m3.28 VDC when the Tray 1 No
Paper Sensor is deactuated and 0.0 VDC when
actuated?
Replace the
Print Engine
Controller
Board
[RRP 8.5,
page 310 ].
Go to
Step 5.