Table 83 Size Switch Troubleshooting Procedure - Xerox 5400N - Phaser B/W Laser Printer Service Quick Reference Manual

RAP 54 Size Switch
The error message indicates a problem with the standard feeder, the 500
or the 2000 Sheet Feeder.
-
Table 83 Size Switch Troubleshooting Procedure
Step Actions and Questions
Is the problem with the 2000
1
2 500-SHEET FEEDER TROUBLESHOOTING
1. Remove the tray from the problem feeder.
2. Inspect the Size Cams on the left side of the paper
tray.
Are the Size Cams intact and in good condition
(no broken surfaces)?
3 SIZE SWITCH ACTUATOR INSPECTION
Visually inspect the Size Switch Actuators for damage
or wear.
Do the actuators move freely and appear to be in
good condition (not broken or damaged)?
4 SIZE SENSORS TEST
1. Enter Diagnostics mode.
2. From the Main Menu, select Component Test / Sensor
Input / press [4] to start, [0] to stop.
3. One at a time, press each of the Size Actuators, while
observing the display.
Does the LCD counter increment each time you
press and release one of the actuators?
5 Is the problem with the Tray 1 Size Sensor?
6 "NO" FROM STEP 5 ABOVE
1. Switch printer power OFF.
2. Remove the Left Cover from the 500-Sheet Feeder
[RRP 11.3,
3. Disconnect P/J138 from the Feeder Board.
4. Check for continuity between the following pins, while
pressing the switches indicated:
P138-1 and P138-3 when pressing SW1 Bottom
I
P138-2 and P138-3 when pressing SW2
I
P138-4 and P138-3 when pressing SW3
I
P138-5 and P138-3 when pressing SW4 Top
I
Is there continuity in each case?
142
Sheet Feeder?
-
page 330].
Yes
Go to
Step 10.
Go to
Step 3.
Go to
Step 4.
The Size
Sensors
appear to be
working
correctly. If
the problem
persists,
replace the
Print Engine
Controller
Board
[RRP 8.5,
page
Go to
Step 9.
Go to
Step 7.
Phaser 5400 Laser Printer Service Guide
Sheet Feeder
-
No
Go to
Step 2.
Replace the
Paper Tray
[PL 2.1,
page 386 /
PL 2.2,
page 388].
Replace the
Left Guide
Assembly
[RRP 3.6,
page 279 /
RRP 11.13,
page 340].
Go to
Step 5.
310].
Go to
Step 6.
Check for
pin-to-pin
continuity of
the Size
Sensor
Harness.
Repair or
replace as
necessary. If
the harness
is OK,
replace the
Size Sensor
Switch
[PL 11.3,
page 416].