Phaser 4500/4510 Service Manual 3-41
Error Messages and Codes
7 At the exit of the fuser assembly,
manually move the exit actuator up
and down.
Does the exit Actuator move
smoothly?
Go to step 8. Replace the
fuser assembly
(page 8-44).
8 Enter Service Diagnostics, and from
the Sensor Tests menu select the
Exit Sensor (Fuser) test.
Does the sensor correctly report its
state when the actuator is manually
operated?
Replace the
HVPS/engine
logic board
(page 8-73).
Go to step 9.
9 Measure the voltage across P/J46-5
<=> 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?
Replace the
LVPS
(page 8-62).
Go to step 10.
10 1.Disconnect P/J46 from the LVPS.
Warning: Allow the fuser assembly to
cool before removing.
2.Remove the fuser assembly
(page 8-44).
3.Check the fuser harness for
continuity
Is P/J46 <=> P/J4647 continuous?
Go to step 11. Replace the
fuser harness
assembly
(page 8-42).
11 Check the power to the exit Sensor:
Measure the voltage across P/J46-3
<=> P/J46-4.
Is the voltage 3.3 VDC?
Go to step 13. Go to step 12.
12 Check the LVPS for continuity between
P/J41-1 and P/J 46-3.
Is it continuous?
Go to “LVPS
(Low Voltage
Power Supply)”
on page 4-4.
Replace the
LVPS
(page 8-62)
13 Warning: Allow the fuser assembly to
cool down before removing.
1.Remove the fuser assembly
(page 8-44).
2.Manually turn the fuser assembly’s
heater roller gear.
Do the gear and the roller of the fuser
assembly rotate smoothly?
Replace the
HVPS/engine
logic board
(page 8-73).
Replace the
fuser assembly
(page 8-44)
14 1.Remove the transfer roller assembly
(page 8-45).
2.Inspect the transfer roller assembly
for shape irregularities and shaft
and bearing wear.
Are there any abnormalities in
transfer roller assembly?
Replace the
transfer roller
assembly
(page 8-45).
Go to step 15.
Troubleshooting Procedure (continued)
Steps Actions and Questions
Yes No