Table of Contents
Advertisement
TROUBLESHOOTING MALFUNCTIONS
20
Pick-up operation fails (multifeeder).
Cause
Step
Multifeeder
1
pick-up
clutch (CL3)
Paper guide
2
plate cam
Multifeeder
3
pick-up
solenoid
(SL2)
DC control-
ler PCB
21
The scanner fails to move forward/in reverse.
Cause
Step
Cable
1
Foreign
2
matter on
scanner
path
Composite
3
power
supply PCB
DC control-
4
ler PCB
Scanner
5
motor
4–12
Checks
Select the multifeeder. Does the
multifeeder pick-up roller rotate when
the Copy Start key is pressed?
Press the Copy Start key; does the
paper guide plate shift up?
Connect the + probe to the J312B-8
on the DC controller. Does the voltage
change from about 24 V to about 0 V
when the Copy Start key is pressed?
Checks
Is the scanner drive cable routed
correctly?
Is the scanner rail free of dirt and does
the scanner move smoothly when
pushed by hand?
Set the meter to the 50VDC range.
Doe the index of the meter point to 34
V when the + probe is connected to
J8-5 and the – probe is connected to
J8-6 on the composite power supply
PCB?
Replace the DC controller PCB. Is the
problem corrected?
Replace the scanner motor. Is the
problem corrected?
Yes/No
Remedy
NO
Check the wiring; if normal,
replace the CL3.
YES
Check the position of the
paper guide plate cam and
the separation pad. As
necessary, adjust or replace.
YES
Check the wiring; if normal,
replace SL2.
NO
Replace the DC controller.
Yes/No
Remedy
NO
Re-route the cable.
NO
Check the scanner rail surface
for dirt and foreign matter or for
an object that comes into contact
with the scanner.
NO
See "DC power is absent."
YES
End.
YES
End.
Advertisement
Table of Contents
Troubleshooting
