4-8 Phaser 4500/4510 Service Manual
General Troubleshooting
4 1. Remove the Optional 550-Sheet Paper
Feeder.
2.Turn ON the printer power.
Do both fans rotate when the power is
turned ON?
Go to
“Optional
550-Sheet
Feeder PWBA
(Tray 3)” on
page 4-39,
“Optional
550-Sheet
Feeder PWBA
(Tray 4)” on
page 4-40
“Optional
550-Sheet
Feeder Feed
Clutch
Assembly” on
page 4-46,
and “Optional
550-Sheet
Feeder Turn
Roller Clutch”
on page 4-48.
Go to step 5.
5 1. Remove the duplex unit (page 8-95).
2.Turn ON the printer power.
Do both fans rotate when the power is
turned ON?
Go to “Duplex
Unit PWBA”
on page 4-49,
and “Duplex
Unit Motor”
on page 4-50.
Go to step 6.
6 1. Remove the HVPS Shield Plate
(page 8-72).
2.Verify that P/J10 is connected to the
HVPS/engine logic board.
3.Remove the print cartridge.
4.Check for +24 VDC at the following
points:
■ P/J10-1 <=> P/J10-4
■ P/J10-2 <=> P/J10-5
■ P/J10-3 <=> P/J10-6
■ P/J10-8 <=> P/J10-7
Does the voltage at each point measure
+24 VDC?
Go to step 7. Go to “Print
Engine
Trouble-
shooting” on
page 4-11.
7 1. Perform steps 1-3 of the 150-sheet
feeder assembly removal (page 8-15).
2.Disconnect P/J243 (see the registration
clutch removal on page 8-19).
3.Remove the print cartridge.
Does the main fan rotate when the power
is turned ON?
Go to
“Registration
Clutch” on
page 4-29.
Go to step 8.
Troubleshooting Procedure (continued)
Steps Actions and Questions Yes No
To Next Page
Loading...
Need help?
General
Weight and Dimensions
