Xerox 3050 Service Manual page 94

E 4 . 0 1 / E4.02
Media
Transportation RAP
(212193)
The status code E4 is displayed when the
logic detects that the media
is
jammed
in
the
exit area of the Media Transport. As the
media moves through the Media Transport,
the media alternately actuates and
deactuates the Media Exit Switch.
E4.01 lndicates that the logic detected
that :
(a) the media is blocking the Media
Exit
Switch at Power On. The switch
signal is HIGH when the Power On
(1)
switch was pressed.
(b) during the run mode, trail edge
of the media did not clear the
Media
Exit
Switch. The switch
signal does not change
state
from
HIGH to LOW as the media moves
through the Media Transport.
E4.02
Indicates that the logic detected
that the lead edge of the media did
not reach the Media Exit Switch.
The switch signal does not change
state from LOW to
HIGH
as the
media moves through the Media
Transport.
The problem may occur if there is
a
problem
with the Media Transport mechanical
components,
the
Transport Drive Motor, or
the motor control circuitry.
NOTE: If the media is jammed at the Media
Transport exit area, ensure to remove the
entire sheet of media from the copier.
NOTE:
The component locator drawings and
the circuit diagrams are located on the next
three 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.
Check the actuator of the Media Exit
Switch for binding or damage.
Check the Media Transport connector
(A2
1 PIJ 1)
for damage and ensure that
the connector and pins are seated
correctly.
Check the Control PWB connector for
the Media
Exit
Switch (A3 P305) for
damage. Ensure that the connector
and pins are seated correctly.
Procedure
Enter the code
I08071
in order to check the
Media Exit Switch. The Control Panel display
indicates a (01) when the switch
is
actuated.
Manually actuate the Media Exit Switch.
The display changes from (00) to (01) when
the switch is actuated.
Y N
1
Go
to
FLAG 1
and check for an open or a
1
short circuit to ground in the wires to the
Media Exit Switch.
I
1
If there i s no open or short circuit,
replace the Media
Exit
Switch
(93).
If the problem persists, replace the
Control PWB
(A3).
WIO Tag 17: Go to the
8.1
Media Transport
Wnag 17: Go to the E4.03 Media
I
Transportation RAP W/Tag 17.
81 94
E4.011 E4.02 Media Transportation RAP
2-50