Jam At Mpt; Open Front Cover To Clear - Xerox 4400DT - Phaser B/W Laser Printer Service Manual

Envelope Feeder Jam Troubleshooting Procedure (cont'd.)
Step Actions and Questions
7 Perform Registration Sensor
Registration Sensor.
Is the Registration Sensor operating correctly?

Jam at MPT; Open Front Cover to Clear.

(E2-#M: Feed Jam)
E2-0M:
Paper arrives at REG sensor early.
E2-1M: Paper arrives at REG sensor late.
Feed Jam Procedure
Step Actions and Questions
1 1. Switch the printer power OFF.
2. Open the Front Cover.
3. Check the MPT Chute for contamination or
obstructions.
Is the MPT free of contamination, paper, or other
obstructions?
2 Check the MPT Feed Roller for contamination and
wear.
Is the feed roller clean and in good condition?
3 1. Enter Service Diagnostics and select Solenoid Tests.
2. Scroll to MPT and press OK.
Can you hear the solenoid energize?
4 1. Open the Front Cover and cheat the Front Cover
Interlock.
2. From the Service Diagnostics menu select
Motors/Fans Tests and press OK.
3. Scroll to Main Motor and press OK.
Do the MPT drive gears rotate smoothly?
2-22
on page 3-20 to check the
Phaser 4400 Laser Printer Service Manual
Yes No
Replace the Replace the
Engine Logic Registration
Board (RRP Sensor (RRP
9.3 on 5.4 on
page 6-89). page
Yes No
Go to step 2. Clean the
MPT and
remove the
paper or
obstruction.
Go to step 3. Replace the
MPT Feed
Roller (RRP
4.3 on
page
Go to step 4. Go to
Pick Up
Solenoid on
page 3-30.
Go to step 5. Check, re-
pair, or re-
place the
Drive Gear
(PL 5.1 on
page
Main Drive
Gear Assem-
bly (RRP 8.2
on
page
or Main Mo-
tor Assem-
bly (RRP 8.1
on
page
as neces-
sary.
6-61).
6-47).
MPT
7-14),
6-85),
6-84)