A4 Document Handler Rap - Xerox 3001 Service Manual

A4 Document Handler RAP
The status code A4 will be displayed if the
document is driven past the rear document
sensor area while the copier is in the multiple
copies mode.
This could occur if the actuator that blocks
the front document sensor is binding. The
document drive motor is switched off when
the trail edge of the document moves off of
the front document sensor.
Q
The circuit diagram is on the next page.
Initial Actions
Ensure that the document is in good
condition.
Check the actuator of the front
document sensor for damage or
binding.
0
Ensure that the connectors for the
Document Drive Motor (A1 1P2) and
Drive Motor PWB (A1 1P1) are seated
correctly.
0
Check the document path for
obstructions and the Transport
Platen and the platen for damage
and for correct installation.
Check the document Drive Belt and
pulleys for damage and for the
correct installation.
0
Ensure that the document Handler is
properly grounded.
CONTROL PWB
\ I
Procedure
Enter the code
[37]
to check the Front
document sensor.
NOTE: The Film LED will be lit when the
sensor is blocked.
Actuate the Front Document Sensor (44).
The Film
LED
goes on then off when the
sensor is actuated.
Y N
Go to FLAG
1
and check the wiring for an
open circuit or a short circuit.
If there is no open or short circuit,
replace the Front Document Sensor (44).
If the problem persists, replace the
Controller PWB.
The problem could be an intermittent Front
Document Actuator or Sensor. Refer back t o
the Initial Actions section of this RAP. If the
problem persists, replace the Front
Document Sensor.
A4 Document Handler RAP