Electrical Noise - Xerox Phaser 4500 Service Manual

Electrical Noise

Phaser 4500/4510 Service Manual
Troubleshooting Reference
Applicable Parts
HVPS/engine logic board
Print cartridge right guide
assembly
Fuser assembly
Print cartridge
ANT harness assembly
AC power harness assembly
LVPS harness assembly
Optional 150-sheet paper
feeder
550-sheet feeder PWBA
Duplex Unit PWBA
Troubleshooting Procedure
Steps Actions and Questions
Check for foreign noise:
1
Are there any other electrical appliances
within 3 m of the printer, such as
generators, radios, and appliances with
motors?
2 Either turn off the other electrical
appliances, or re-locate the printer at least 6
m from other appliances.
Does the electrical noise problem still
occur?
3 Check the AC ground.
Is AC power supply outlet wired and
grounded correctly?
Check the AC power harness assembly.
4
Is the cable connected to the AC power
harness assembly correctly grounded?
Replace the print cartridge.
5
Does the electrical noise problem still
occur after replacement?
General Troubleshooting
Wiring and Plug/Jack Map References
"Print Engine Plug/Jack Locator" on page 10-3
"Print Engine Wiring Diagrams" on page 10-19
"Print Cartridge, Transfer Roller Assembly" on
page 10-26
"Fuser Assembly, Power Switch" on page 10-25
"P4500: 24 V Interlock, Rear Cover Switch,
Main Motor, Sub Fan, Exit Motor Assembly" on
page 10-21
"550-Sheet Feeder Plug/Jack Locator" on
page 10-12
"550-Sheet Feeder Signal Diagram" on
page 10-33
"Duplex Unit Plug/Jack Locator" on page 10-14
"Duplex Unit Signal Diagram" on page 10-35
Yes
Go to step 2.
Go to step 3
Go to step 4.
Go to step 5.
Go to step 6.
No
Go to step 3.
Problem
solved.
Request that
the customer
fix the AC
power supply
outlet.
Install the
ground screw
correctly.
Problem
solved.
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