Xerox Phaser 3450 Service Manual page 85

TROUBLESHOOTING
7.2.5 JAM Duplex 1
• Description
A message 'Jam duplex 1' is displayed in a LCD window.
7.2.6 JAM Duplex 2
• Description A message 'Jam duplex 2' is displayed in a LCD window.
Service Manual
7-10
Check and Cause
1. It is a case when a paper can-
not operate a duplex sensor.
2. It is a case when a paper can-
not reach to a duplex sensor
due to a paper jam on a duplex
path.
Check and Cause
1. It is a case that a paper cannot pass
a duplex sensor.
2. It is a case that a paper cannot reach
to a registration sensor after it is
passed a duplex sensor.
Solution
1. Replace a SMPS or main PBA
2. A case that a paper jam occurs on
(A) after it is reversed: replace a
2nd exit roller after checking its
operation.
3. A case that a paper jam occurs on
(B) after it is reversed: replace a
duplex roller after checking its
operation
Solution
1. Replace a SMPS or main PBA.
2. A case that a leading edge of a paper
is jammed on (A) check an operation of
a guide front. If it is worn or defective,
replace it.
3. Check an operation of a feed roller
and a registration roller. If they are worn
or defective replace them.