Xerox 3050 Service Manual page 66

C1 . O N C2.041 C3.04 Media
Transportation RAP
Procedure
The status codes C1.04, C2.04, and
C3.04
are
displayed when 'the logic detects that the
media is jammed in the registration area of
the Media Transport. The media that is
moving through the Media Transport,
alternately blocks and clears the Media
Registration Sensor, causing the sensor
signal to change state. The logic detects a
change in the state of the Media
Registration Sensor signal.
lndicates that the logic detected
that the media did not reach the
Media Registration Sensor. The
sensor signal did not change state
from HlGH to
LOW
a s the media
was being fed from the Roll 1.
lndicates that the logic detected
that the media did not reach the
Media Registration Sensor. The
sensor signal did not change state
from HlGH to
LOW
a s the media
was being fed from the Roll 2.
lndicates that the logic detected
that the media did not reach the
Media Registration Sensor. The
sensor signal did not change state
from HlGH to LOW as the media
was being fed from the Roll 3.
The problem may occur if there is a problem
with either the Roll Feed or Media Transport
mechanical components, the Drive Motors,
or the motor control circuitry.
NOTE: I f the media
is
jammed
in
the Media
Transport, ensure that the entire sheet of
media is removed from the copier.
NOTE: The component locator drawings end
the circuit diagrams are located on the three
following pages.
Initial Actions
WARNING
The Fuser Heat Roll may be hot. Be careful
and do
not
touch the roll while performing
this procedure.
Lower the Sheet Feed-in Shelf and the
Latching Cover. Check the Media
Transport for a media jam. Remove
any obstructions in the media path.
Clean the Media Registration Sensor
by wiping the face of the sensor with
a
clean, dry cloth.
Check the Media Transport connector
(A21 PI J1) for damage and ensure
that the connector and pins are seated
correctly.
Check the Control PWB connector for
the Media Registration Sensol (A3
P305) for damage and ensure that the
connector and pins are seated
correctly.
Enter the code [0803] in order to check the
Media Registration Sensor. The Control
Panel display indicates a (00) when the
sensor
is
actuated.
With the Sheet Feed Tray and the Latching
Cover in the lowered position, place a clean
strip of bond media over the Media
Registration Sensor.
The display changes from (01) to (00) when
the sensor
is
covered.
N
Go to FLAG 1 and check for an open
circuit or a short circuit to ground in the
wires to the Media Registration Sensor.
If there is no open or short circuit,
replace the Media Registration Sensor
(Q1).
If the problem persists, replace the
Control PWB
(A3).
The problem may be caused by either the
Roll Feed or Media Transport components.
Go to one of the following RAPS:
When C1.04 is displayed, go to the 7.1
Roll 1 Feed RAP.
When
C2.04
is displayed, go to the 7.2
Roll 2 Feed RAP.
When
C3.04 is
displayed, go
to
the
7.3
Roll
3
Feed
RAP.
If the problem persists, go to the
8.1
Media
Transport RAP.
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10192
C1.041 C2.04/ C3.04
Media Transportation
RAP
2-22