Xerox 3050 Service Manual page 167

OF 3 Media Does Not Feed
RAP
This RAP is used for Media Feed problems
that are not indicated by a status code. The
Control Panel may display the message,
"PLEASE OPEN THE CUT SHEET FEED-IN
SHELF". With the copier in the Cut Sheet
operating mode, the sheet media will not
feed into the copier and the copier will not
run.
The problem may occur if there
is
a problem
with the media sensors, mechanical
components, the drive motors, the motor
control circuitry or poor quality documents.
NOTE: The component locator drawings and
the
circuit
diagram are on the next three
pages.
Initial Actions
Follow these actions for Roll Media feed
problems:
Ensure that the roll media is in good
condition and
i s
loaded correctly.
Pull out each of the
3
Roll Supply
Draws. Check the Feed Drive Rolls,
Feed Pinch Rolls, and Roll Load Springs
for contamination or damage and
correct installation. Clean or replace
a s required.
Check the roll media feed path for
obstructions.
Check that each of the 3 Upper Feed
Baffles that house the Feed Pinch Rolls
are latched in the correct position.
Check the Roll Drive Motor, drive
chain and sprockets for binding by
rotating the Feed Drive Sprocket
manually. The sprocket will drive the
Media Drive Chain, which will rotate
the motor and sprockets.
Check the Rewind Gears, Roll Arbors,
and
Arbor Support Rolls for binding or
damage.
Check the connectors for the Roll
Drive Motor (A7 P2), Drive Motor
PWB (A7 P I ) and Control PWB (A3
P308) for damage. Ensure that the
connectors and pins are seated
correctly.
Ensure that the customer
is
running
media that meets the type and size
specification.
Follow these actions for Cut Sheet feed
problems:
Check that the media
i s in
good
condition and is loaded correctly.
Lower the Sheet Feed Shelf and the
Latching Cover. Check the media path
for obstructions. Remove any
obstructions in the media path.
Raise the Fuser Fabric Guide in order to
observe the Sheet Drive Roll. Check the
Transport Drive Motor, drive belts and
drive rolls for binding by rotating the
Cut Sheet Drive Roll manually. The roll
will rotate the drive belts, which in turn
will rotate the drive rolls and motor.
Check the Media Transport connector
(A21 PI Jl), Drive Motor PWB (A23 PI,
P2) and Control PWB (A3 P305) for
damage. Ensure that the connectors
and pins are seated correctly.
Check the actuator of the Sheet Feed
Sensor for binding or damage.
Ensure that the customer is running
media that meets the type and size
specification.
Procedure
Enter the code
(0801)
in order to check the
Sheet Feed Sensor. The Control Panel display
indicates an (01) when the sensor i s actuated.-
With the Sheet Feed-in Tray in the lowered
position, place a clean sheet of media into the
Media Transport in order to actuate the Sheet
Feed Sensor.
The display changes from
(00)
to
(01)
when
the sensor Is actuated.
Y N
A B
101 92
3050 2.209
OF 3 Media Does Not Feed RAP