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RAP 21 Document
Feeding
This
procedure
is
used
to
troubleshoot
a
document detection or a feed problem.
Initial
Actions
*
Ensure
that there is no document or other
obstruction in the document path.
*
Open
the scanner
and ensure
that the
actuator for the scan sensor is not binding.
Procedure
1.
Use a meter to verify the operation of the
document sensors.
The sensors an? good.
i
:eptace
the
sensor
board
PWB
assembly (REP 4.1).
2.
Make a copy.
Document
feeds through the scanner.
i
:o to step 6.
3.
'y"" image on the copy is good.
I
N Clean or replace the retard pad (REP
4.2) and clean the ADF, scan, and eject
rollers (PL 4.1).
4.
Load 5 sheets into the ADF and press
Copy
then Start.
Observe operation for a mechanical problem
with the ADF feeder such as:
* A broken or damaged gear
* Binding switch actuator
* Contaminated feed rolls.
Operation is good.
;
N Repair or replace appropriate part.
5.
Clean or replace the retard pad (REP 4.2) and
clean the ADF and eject rollers (PL 4.1).
6.
Check the ADF motor for mechanical binding
or incorrect resistance (Table 1).
The motor is OK.
i
N Replace the ADF motor (REP 4.3).
7.
Replace the main PWB (REP 8.1).
AIN PWB PL8.1
+5 "DC
t.
CNI
1
I
.-II-
2
5
r-
DC COM
CN2
Table 1 ADF Motor
Resistance
SENSOR BOARD ASSEMBLY
PL4.1
ADF SENSOR
-
MAIN PWB 8.1
RAP 21 Document
Feeding
51%
2-1s
Document WorkCenter
150
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