Kyocera TASKalfa 620 Service Manual page 160

2KN/2KP
Problem
(16)
A paper jam in the
paper feed section is
indicated during
copying (multiple
sheets in deck paper
feed section 1).
Jam code 28
(17)
A paper jam in the
paper feed section is
indicated during
copying (multiple
sheets in deck paper
feed section 2).
Jam code 29
(18)
A paper jam in the
paper feed section is
indicated during
copying (multiple
sheets in optional
side feeder).
Jam code 30
1-4-16
Causes/check procedures
Broken deck conveying
switch 2 actuator.
Defective deck conveying
switch 2.
Defective timing switch 2.
The deck conveying roller is
dirty with paper powder.
The deck conveying roller is
deformed or worn.
Broken deck conveying
switch 1 actuator.
Defective deck conveying
switch 1.
Broken deck conveying
switch 2 actuator.
Defective deck conveying
switch 2.
The deck conveying roller is
dirty with paper powder.
The deck conveying roller is
deformed or worn.
Side feeder
Broken side feeder feed
switch actuator.
Defective side feeder feed
switch.
The feed roller or feed left
roller is dirty with paper
powder.
The feed roller or feed left
roller is deformed or worn.
Corrective measures
Check visually and replace deck conveying switch 2 if its actuator
is broken.
Run maintenance item U031 and turn deck conveying switch 2 on
and off manually. Replace deck conveying switch 2 if indication of
the corresponding sensor on the touch panel is not displayed in
reverse.
Run maintenance item U031 and turn timing switch 2 on and off
manually. Replace timing switch 2 if indication of the correspond-
ing sensor on the touch panel is not displayed in reverse.
Check and, if it is dirty, clean it.
Check and, if it is deformed or worn, fix or replace it.
Check visually and replace deck conveying switch 1 if its actuator
is broken.
Run maintenance item U031 and turn deck conveying switch 1 on
and off manually. Replace deck conveying switch 1 if indication of
the corresponding sensor on the touch panel is not displayed in
reverse.
Check visually and replace deck conveying switch 2 if its actuator
is broken.
Run maintenance item U031 and turn deck conveying switch 2 on
and off manually. Replace deck conveying switch 2 if indication of
the corresponding sensor on the touch panel is not displayed in
reverse.
Check and, if it is dirty, clean it.
Check and, if it is deformed or worn, fix or replace it.
Check visually and replace the side feeder feed switch if its actua-
tor is broken.
Run maintenance item U031 and turn the side feeder feed switch
on and off manually. Replace the side feeder feed switch if indica-
tion of the corresponding sensor on the touch panel is not dis-
played in reverse.
Check and, if it is dirty, clean it.
Check and, if it is deformed or worn, fix or replace it.