Xerox 4400DT - Phaser B/W Laser Printer Service Manual page 56

Paper Jam/Misfeed Troubleshooting Procedure (cont'd.)
Step Actions and Questions
8 Does the Turn Roller Assembly move the paper
to the Registration Sensor?
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?
Do the jams occur when feeding from Tray 3.
10
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?
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?
13 Check the Tray 2 Turn Roller Assembly for
obstructions, contamination, or wear.
Are the Turn Rolls clean and in good condition?
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?
Phaser 4400 Laser Printer Service Manual
Yes No
Go to Go to
Registration Roller Clutch
Sensor on Assembly
page 3-20. page 3-28.
Go to step Remove
10. obstructions
and clean
chute.
Replace paper
tray if neces-
sary (PL 2.1
on page
Go to step Go to step 11.
14.
The paper Go to step 12.
tray currently
in Feeder 1
appears to
be defective.
Go to step
18.
Go to step Replace the
13. Feed Rollers
(RRP 11.11 on
page
Replace the Remove the
Feeder PWB obstruction;
(RRP 11.9 on clean, or
page 6-128). replace the
If the prob- Turn Roller
lem persists, Assembly
replace the (RRP 11.8 on
Size PWB page
(RRP 11.19
on
page 6-139),
then the
Engine Logic
Board (RRP
9.3 on
page 6-89).
Go to step Remove
15. obstructions
and clean
chute.
Replace paper
tray if neces-
sary (PL 2.1
on page
Turn
on
7-6).
6-130).
6-127).
7-6).
2-19