Xerox 4400DT - Phaser B/W Laser Printer, Service Manual, Page: 56 / 503

Phaser 4400 Laser Printer Service Manual 2-19
8 Does the Turn Roller Assembly move the paper
to the Registration Sensor?
Go to
Registration
Sensor
on
page 3-20.
Go to Turn
Roller Clutch
Assembly
on
page 3-28.
9 1. Remove Tray 1.
2. Check the paper chute at the front of the tray (the
chute guides paper from Tray 2 to the Tray 1 turn
rollers). Check for contamination, paper, or other
obstructions.
Is the chute clean and free of obstructions?
Go to step
10. Remove
obstructions
and clean
chute.
Replace paper
tray if neces-
sary (PL 2.1
on
page 7-6 ).
10 Do the jams occur when feeding from Tray 3. Go to step
14. Go to step 11.
11 1. Remove Tray 2 and place the tray in Feeder 1.
2. Place Tray 1 in Feeder 2.
3. Enter Service Diagnostics and select Test Print.
4. Run 20 to 25 test prints from Tray 2.
Did all prints complete successfully?
The paper
tray currently
in Feeder 1
appears to
be defective.
Go to step
18. Go to step 12.
12 1. Remove the tray currently in Feeder 2.
2. Check the Nudger and Feed Rollers in Feeder 2 for
contamination and wear.
Are the Feed Rollers clean and in good
condition?
Go to step
13. Replace the
Feed Rollers
(RRP 11.11 on
page 6-130 ).
13 Check the Tray 2 Turn Roller Assembly for
obstructions, contamination, or wear.
Are the Turn Rolls clean and in good condition?
Replace the
Feeder PWB
(RRP 11.9 on
page 6-128 ).
If the prob-
lem persists,
replace the
Size PWB
(RRP 11.19
on
page 6-139 ),
then the
Engine Logic
Board (RRP
9.3 on
page 6-89 ).
Remove the
obstruction;
clean, or
replace the
Turn Roller
Assembly
(RRP 11.8 on
page 6-127 ).
14 Remove Tray 1 and Tray 2. Check the paper chute at
the front of both trays (the chute guides paper from
Tray 3 to the Tray 2 turn rolls and from Tray 2 to the
Tray 1 turn rollers). Check for contamination, paper, or
other obstructions.
Is the chute clean and free of obstructions?
Go to step
15. Remove
obstructions
and clean
chute.
Replace paper
tray if neces-
sary (PL 2.1
on
page 7-6 ).
Paper Jam/Misfeed Troubleshooting Procedure (cont'd.)
Step Actions and Questions Yes No