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~~etects a jam and stops even though a
M - 7
Possible rnusr
Operalion
mistake
_ ,'.
Sensor arm
&gist paper
sensor
Sensor arm
Delivery
paper sensor
Pick-up motor
driver PCB
DC rontrollw
PC13
Sensor am,
5
6
Delivery
paprr sensor
' When
Pick-up
motor
7
driver PCN
mc r0ntrdier
PCB
Rrgist paper
sensor
tester ON?
Is the regist paper sensor arm or
delively paper tensor arm damaged?
When the delivery papel- sensor arm
is moved, does the voltage between
connertors 5208.3 (I'SNS) and 5208-2
(GNU on the DC controller PCB
change from zero to about 5 VDC?
the regist paper sensor arm is
moved. does the voltage between
connectors J605-6 (RESS) and
J605-5 IGND) on the pick-up motor
driver PCB change from about 5 VDC
to zero?
jam
has not
paper
paper sensor arm is
damaged. If it is
it: if it is not, replace the
regist paper sensor.
Check whether the delivery
paper sensor arm is
damaged. If it is, replace it:
if It Is not, replace the
delivery paper sensor.
NO
Replace the pick-up motor
driver PCB. If the
problem persists, replace
the DC controller PCB.
Y E S
Replace the damaged paper
sensor arm.
NO
Replace the delivery paper
sensor.
Y E S
Replace the pick-up motor
driver PCB. If the problem
persists after replacing the
/
PCB. replace the DC
controller PCB.
;+--__
/
NO
Replace the regist paper
/
sensor.
I
CHAPTER 6
,
replace
-
6-31
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