Xerox Phaser 4510 - Registration Clutch

Phaser 4500/4510 Service Manual 4-29
General Troubleshooting
Registration Clutch
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ Registration clutch
■ Chute assembly harness
■ Tray 1 assembly harness
■ HVPS/engine logic board
■ LVPS
■ “150-Sheet Feeder, 550-Sheet Feeder, Main
Fan” on page 10-27
■ “Print Engine Wiring Diagrams” on page 10-19
■ “Print Engine Plug/Jack Locator” on page 10-3
Troubleshooting Procedure
Steps Actions and Questions Yes No
1 Check the chute assembly harness:
1.Disconnect P/J24 from the HVPS/engine
logic board.
2.Test for continuity across the following
points:
■ J24-14 <=> J245-5
■ J24-15 <=> J245-4
Are both continuous?
Go to step 2. Replace the
chute
assembly
harness.
2 Check the tray 1 assembly harness:
1.Remove the registration clutch.
2.Disconnect P/J245.
3.Test for continuity across the following
points:
■ P/J245-9 <=> P/J243-2
■ P/J245-10 <=> P/J243-1
Are both continuous?
Go to step 3. Replace the
tray 1
assembly
harness.
3 Measure the resistance of the registration
clutch between P/J243-1 <=> P/J243-2.
Does the resistance of the clutch measure
172 ohm +/-10% (at 20° C)?
Go to step 4. Replace the
registration
clutch
(page 8-19).
4 Check the HVPS/engine logic board:
1.Disconnect P/J24 and P/J10 from the
HVPS/engine logic board.
2.Test for continuity across J24-14 <=>
J10-1
Is it continuous?
Go to “LVPS
(Low Voltage
Power
Supply)” on
page 4-4.
Replace the
HVPS/engine
logic board
(page 8-73).