4-10 Phaser 4500 Service Manual
13
Check the Top Cover Interlock:
1. Disconnect P/J411.
2. Test for continuity between P/J411-3
<=> P/J411-1 while opening and closing
the Top Cover.
Is there continuity when the Top Cover
is closed, and no continuity when the
Top Cover is open?
Go to step 14. Replace the
Interlock Switch
Assembly
(page 8-13).
14
1. Disconnect P/J242 and P/J247 from the
Tray 1/2 Harness Assembly.
2. Remove the Print Cartridge.
Does the Main Fan rotate when the
power is turned ON?
Go to “Feed
Clutches” on
page 4-33.
Go to step 15.
15
1. Disconnect P/J43 from the LVPS.
2. Remove the Print Cartridge.
Does the Main Fan rotate when the
power is turned ON?
Go to “Print
Engine
Troubleshooting”
on page 4-11.
Go to step 16.
16
1. Replace the Main Fan (page 8-84).
2. Remove the Print Cartridge.
3. Turn ON the power.
Does the Main Fan rotate when the
power is turned ON?
Problem solved. Go to step 17.
17
1. Replace the Sub Fan. (page 8-44)
2. Remove the Print Cartridge.
Does the Sub Fan rotate when the
power is turned ON?
Problem solved. Replace the
HVPS/Engine
Logic Board.
(page 8-89)
Troubleshooting Procedure (Continued)
Steps Actions and Questions Yes No
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