Phaser 4500/4510 Service Manual 4-39
General Troubleshooting
Optional 550-Sheet Feeder PWBA (Tray 3)
o
e
Use this procedure when the optional 550-sheet paper feeder is installed
as tray 3. When it is installed as tray 4, see the procedure for the “Optional
550-Sheet Feeder PWBA (Tray 4)” on page 4-40.
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ Feeder harness 1
■ 550-sheet feeder PWBA
■ Feeder harness 2
■ HVPS/engine logic board
■ “550-Sheet Feeder Signal Diagram” on
page 10-33
■ “550-Sheet Feeder General Wiring Diagram” on
page 10-32
■ “550-Sheet Feeder Plug/Jack Locator” on
page 10-12
Troubleshooting Procedure
Steps Actions and Questions Yes No
1 Check feeder harness 2 for continuity:
Remove feeder harness 2.
Is J2083 <=> J83 continuous?
Go to step 2. Replace
feeder
harness 2.
2 Check feeder harness 1 (in the print engine)
for continuity:
Remove feeder harness 1.
Is feeder harness 1 continuous?
Go to step 3. Replace
feeder
harness 1.
3 Replace the 550-sheet feeder PWBA
(page 8-85).
Does the problem still occur after
replacement?
Problem
solved.
Replace the
HVPS/engine
logic board
(page 8-73).