Xerox Phaser 4500 Service Manual page 122

Error Messages and Codes
3-44
Troubleshooting Procedure (continued)
Steps Actions and Questions
1. Remove the paper exit cover
7
(page 8-4)
2. Check the exit pinch roller by
manually turning the exit roller.
Is the exit pinch roller undamaged,
and does it rotate smoothly?
Are the exit pinch springs attached?
8 1. Turn the power ON.
2. Check the exit roller for rotation.
Does the exit roller rotate smoothly
during warm up?
9 Hold the fuser assembly open and
operate the Exit Actuator by hand.
Does Exit Actuator move smoothly?
Enter Service Diagnostics, and from
10
the Sensor Tests
Exit Sensor (Fuser)
Does the sensor correctly report its
state when the actuator is manually
operated?
Measure the voltage across P/J46-5
11
<=> P/J46-4 while manually operating
the Exit Actuator.
Does the voltage measure 0VDC
when the Exit Actuator is pushed, and
3.3 VDC when released?
12 Check the power to Exit Sensor
Does the voltage across P/J46-3 <=>
P/J46-4 measure 3.3 VDC?
13 Check the LVPS for continuity between
P/J41-1 and P/J 46-3.
Is it continuous?
14 1. Disconnect P/J11 on the HVPS/
engine logic board.
2. Disconnect P/J41 on the LVPS.
3. Check the LVPS harness assembly
for continuity between J11-10 and
J41-7.
Is it continuous?
Yes
Go to step 8.
Go to step 9.
Go to step 10.
Replace the
menu select the HVPS/engine
test. logic board
(page 8-73).
Go to step 14.
Replace the
HVPS/engine
logic board
(page 8-73).
Go to "LVPS
(Low Voltage
Power Supply)"
on page 4-4.
Replace the
LVPS
(page 8-62).
Phaser 4500/4510 Service Manual
No
Replace the exit
pinch roller.
Replace the
lower exit chute
assembly
(page 8-50).
Replace the
fuser assembly
(page 8-44).
Go to step 11.
Go to step 12.
Go to step 13.
Replace the
LVPS
(page 8-62).
Replace the
LVPS harness
assembly
(page 8-36).