3MH
1-4-3
(3) Paper misfeeds
Problem
Causes/check procedures
Corrective measures
(1)
A paper jam in the
paper feed section is
indicated during
copying (no paper
feed from first paper
feeder).
Jam code 12
Paper is extremely curled.
Change the paper.
Check if the paper feed pul-
ley, separation pulley or for-
warding pulley is deformed.
Check visually and replace any deformed pulley.
Broken registration switch
actuator.
Check visually and replace switch.
Defective registration
switch.
Run maintenance item U031 and turn registration switch on and
off manually. Replace the switch if indication of the corresponding
switch is not light.
Check if the cassette paper
feed clutch 1 malfunctions.
Run maintenance item U032 and select the cassette paper feed
clutch 1 to be turned on and off. Check the status and remedy if
necessary.
Electrical problem with the
cassette paper feed clutch
1.
Check (see page 1-4-9).
(2)
A paper jam in the
paper feed section is
indicated during
copying (no paper
feed from second
paper feeder).
Jam code 13
Paper is extremely curled.
Change the paper.
Check if the paper feed pul-
ley, separation pulley or for-
warding pulley is deformed.
Check visually and replace any deformed pulley.
Broken cassette feed
switch 1 actuator.
Check visually and replace switch.
Defective cassette feed
switch 1.
Run maintenance item U031 and turn cassette feed switch 1 on
and off manually. Replace the switch if indication of the corre-
sponding switch is not light.
Check if the cassette paper
feed clutch 2 malfunctions.
Run maintenance item U032 and select the cassette paper feed
clutch 2 to be turned on and off. Check the status and remedy if
necessary.
Electrical problem with the
cassette paper feed clutch
2.
Check (see page 1-4-9).
(3)
A paper jam in the
paper feed section is
indicated during
copying (no paper
feed from third paper
feeder).
Jam code 14
Paper is extremely curled.
Change the paper.
Check if the paper feed pul-
ley, separation pulley or for-
warding pulley is deformed.
Check visually and replace any deformed pulley.
Broken cassette feed
switch 2 actuator.
Check visually and replace switch.
Defective cassette feed
switch 2.
Run maintenance item U031 and turn cassette feed switch 2 on
and off manually. Replace the switch if indication of the corre-
sponding switch is not light.
Check if the cassette paper
feed clutch 3 malfunctions.
Run maintenance item U032 and select the cassette paper feed
clutch 3 to be turned on and off. Check the status and remedy if
necessary.
Electrical problem with the
cassette paper feed clutch
3.
Check (see page 1-4-9).
Содержание DF-420
Страница 1: ...SERVICE MANUAL Published in May 2009 3MZSM060 First Edition DP 420 PF 420 DF 420 JS 420 FAX System R ...
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