Xerox 4400DT - Phaser B/W Laser Printer Service Manual page 90

Tray 2 or 3 Failure Troubleshooting Procedure (cont'd.)
Step Actions and Questions
7 Check that the paper tray mating connector and the
feeder mating connector are properly aligned when tray
1 is inserted into the feeder.
Are the mating connectors properly connected
when the paper tray is inserted?
8 Check the resistance between the bottom and top
terminals of the mating connector on the paper tray 2.
Is there continuity between the two pins?
9 Check that the paper tray mating connector and the
feeder mating connector are properly aligned when the
tray is inserted into the feeder.
Are the mating connectors properly connected
when the paper tray is inserted?
10 Does the printer have two optional 550-Sheet
Feeders installed?
11 On the Engine Logic Board, check the voltage between
P/J33 pin 14 and frame ground.
Is the voltage +24 VDC?
Phaser 4400 Laser Printer Service Manual
Yes No
Replace the Repair or
Tray 1 Size replace
PWB (RRP components
3.13 on as
page 6-42). If necessary.
the problem
persists,
replace the
Tray 1
Feeder PWB
(RRP 3.9 on
page 6-37).
Go to step 9. Replace the
paper tray
mating
connector
(PL 2.2 on
page
Replace the Repair or
Tray 2 Size replace
PWB (RRP components
11.19 on as
page 6-139). necessary.
If the
problem
persists,
replace the
Tray 2
Feeder PWB
(RRP 11.9 on
page 6-128).
Go to step Replace the
11. Engine Logic
Board (RRP
9.3 on
page
Replace the Go to step
Engine Logic 12.
Board (RRP
9.3 on
page 6-89).
7-8).
6-89).
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