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

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160 Phaser 5400 Laser Printer Service Guide
6 “NO” FROM STEP 5 ABOVE
1. Switch printer power OFF.
2. Remove the 500-Sheet Feeder Left Tray Guide.
3. Check for continuity between all pins of P/J133 and
P/J137.
Do all pins check OK for continuity?
Replace the
Low Paper
Sensor
[RRP 11.18,
page 347 ].
Repair or
replace the
harness as
necessary.
7 “YES” FROM STEP 5 ABOVE
Measure the voltage between P/J132-7 (Tray 2) or
P/J132-8 (Tray 3) and frame ground as you actuate and
deactuate the Low Paper Sensor.
Does the voltage m0.9 VDC when
deactuated and 0.0 VDC when actuated?
Go to
Step 8. Replace the
Feeder
Board
[RRP 11-7,
page 334 ].
8
“YES” FROM STEP 7 ABOVE
1. Switch printer power OFF.
2. Remove the printer Left Side Cover [RRP 1.1,
page 250 ] and the Print Engine Controller Board
Cover [RRP 8.5, page 310 ].
3. Switch printer power ON.
4. Measure the voltage between P/J13-7 (Tray 2) or
P/J132-8 (Tray 3) and frame ground as you actuate
and deactuate the Low Paper Sensor.
Does the voltage m0.9 VDC when
deactuated and 0.0 VDC when actuated?
Replace the
Print Engine
Controller
Board
[RRP 8.5,
page 310 ].
Check for
continuity
between
P/J132 and
P/J131, then
between
P/J131 and
P/J13, all
pins. Repair
or replace as
necessary.
9 SUSPECT COMPONENTS
The following printer components and areas are
associated with this specific problem. One or more of
these components or areas may have failed partially or
completely. If you cannot isolate this problem using the
steps in this Repair Analysis Procedure, replace each
component or troubleshoot each area listed below, one
at a time, until you isolate and solve the problem.
■
Low Paper Sensor Actuator [RRP 11.18, page 347 ]
■
Tray Left Guide Assembly [RRP 11.13, page 340 ]
■
Feeder Board [RRP 11-7, page 334 ]
■
Print Engine Controller Board [RRP 8.5, page 310 ]
Table 91 Low Paper Tray 2 (or Tray 3) / 500-Sheet Feeder Troubleshooting
Procedure (cont'd.)
Step Actions and Questions Yes No