Kyocera Ri 4530 Copystar, Руководство по обслуживанию, Страница: 201 / 384

2BC/D
1-5-54
Problem Causes Check procedures/corrective measures
(7)
The original feed
clutch does not
operate.
(8)
A message indicat-
ing cover open is
displayed when the
DF is closed cor-
rectly.
(9)
An original jams
when the main
switch is turned on.
Defective original feed
clutch coil.
The connector terminals of
the original feed clutch
make poor contact.
Defective DF driver PCB.
The connector terminals of
DF safety switch 1 make
poor contact.
Defective DF safety switch
1.
A piece of paper torn from
an original is caught
around the original feed
switch.
Defective original feed
switch.
A piece of paper torn from
an original is caught
around the original switch-
back switch.
Defective original switch-
back switch.
A piece of paper torn from
an original is caught
around the DF timing
switch.
Defective DF timing
switch.
The surface facing the DF
timing switch is soiled.
Check for continuity across the coil. If none, replace the original
feed clutch.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check if the original feed clutch operates when CN5-A5 on the
DF driver PCB is low. If it does, replace the DF driver PCB.
Reinsert the connector. Also check for continuity within the con-
nector cable. If none, remedy or replace the cable.
Check for continuity across the contacts of the switch. If none
when the switch is on, replace DF safety switch 1.
Remove any found.
Run maintenance item U244 and turn the original feed switch on
and off manually. Replace the original feed switch if indication of
the corresponding switch on the touch panel is not displayed in
reverse.
Remove any found.
Run maintenance item U244 and turn the original switchback
switch on and off manually. Replace the original switchback
switch if indication of the corresponding switch on the touch
panel is not displayed in reverse.
Remove any found.
Run maintenance item U244 and turn the DF timing switch on
and off manually. Replace the DF timing switch if indication of
the corresponding switch on the touch panel is not displayed in
reverse.
Check if the projection at the center of the conveying cover that
is facing the DF timing switch is soiled with paper powder. If so,
clean it.