General Troubleshooting 4-43
Optional 550-Sheet Feeder PWBA (Tray 3)
Note
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 4-44.
11
Replace the HVPS/Engine Logic Board
(page 8-89).
Does the problem still occur after
replacement?
Replace all related
parts.
Problem solved.
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 10-28
■ “550-Sheet Feeder General Wiring Diagram” on
page 10-27
■ “550-Sheet Feeder Plug/Jack Locator” on
page 10-10
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 8-102).
Does the problem still occur after
replacement?
Problem solved. Replace the
HVPS/Engine
Logic Board
(page 8-89).
Troubleshooting Procedure (Continued)
Steps Actions and Questions Yes No
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