Xerox 4400DT - Phaser B/W Laser Printer, Руководство по обслуживанию, Страница: 66 / 503

Phaser 4400 Laser Printer Service Manual 2-29
Jam at Front/Rear; Open Front/Rear Cover to Clear.
(E7-#: Duplex Jam)
E7-0:
Paper arrives at the Registration Sensor early from the Duplex Sensor.
E7-1: Paper is late to the Duplex Sensor.
E7-2: Paper is late off the Duplex Sensor.
The Duplex Sensor is on at power-on.
E7-3: Paper is late to the Registration Sensor from the Duplex Sensor.
Duplex Jam Troubleshooting Procedure
Step Actions and Questions Yes No
1 1. Open the printer and check for paper or other
obstructions in the paper path.
2. Remove the Duplex Unit and check the rear entrance
chute to the Paper Handler.
Is the printer free of jammed paper, paper
scraps, or other obstructions?
Go to step 2. Clear all
jammed
paper, paper
scraps, and
obstructions
from the
printer.
2 Check the Duplex Belt, Rollers, and gears. Check for
contamination, wear, and obstructions.
Are the Duplex rollers, gears, and belt clean and
in good condition?
Go to step 3. Replace
components
or Duplex
Unit as
necessary
(RRP 12.1
on
page 6-141 ).
3 1. Reinstall the Duplex Unit and enter Service
Diagnostics.
2. Select Engine Test Print and press OK
3. Scroll to Print Quantity and press OK .
4. Set the quantity to 15 and press Back .
5. Scroll to Duplex and press OK . Set duplex to ON.
6. Scroll to Print Test Pattern and press OK .
Does the error code reappear?
Clear the jam
and press
Back. Go to
step 4.
Problem
solved.
4 1. Select Motors/Fans Tests.
2. Scroll to Duplex Motor High and press OK . The motor
should run for about three seconds.
3. Scroll to Duplex Motor Low and press OK . The motor
should run for about three seconds.
Can you hear the Duplex Motor run at both
speeds?
Go to step 5. Go to step 6.