Xerox 3050 Service Manual page 58

LL.30 Cutter Fault (W/Tag /
MOD 31) RAP
The status code LL.30 is displayed when the
ogic detects that there is a media cutter
woblem. As the cutter bar rotates to cut the
media, the Cutter Home Sensor is blocked
3nd not blocked by the rotating encoder
disk. The logic detects a change in the state
3f the Cutter Home Sensor signal.
LL.30
Indicates that no motion is detected
by the logic from the Cutter Home
Sensor. The sensor signal did not
change state from a HlGH to LOW
or from a
LOW
t o HlGH as the
media is being cut.
The problem may occur i f there is a problem
with the cutter mechanical components,, the
Cutter Drive Motor or the motor control
circuitry.
NOTE: If the Drive Motor fails during a copy
cycle, the media must be cut manually at the
supply roll. The media is then pulled out of
the copier from the fuser exit area or from
the Cutter Drawer area.
NOTE: The component locator drawings and
the circuit diagrams are located on the next
five pages.
Initial Actions
WARNING
The Cutter blade is sharp. Be careful and do
not touch the blade when working on the
cutter.
CAUTION
Do not touch the Cutter Control Cams. The
cams are coated with a lubricant that is
essential for the correct cutter operation.
Pull out the Cutter Drawer. Check the
Cutter Drive Belt and sprockets for
damage.
Disconnect the Cutter Motor
connector and check the Encoder Disk
for damage by rotating the cutter in a
forward and reverse direction. Check
the Cutter Bar for binding or damage.
Check the connectors for the Cutter
Home Sensor (Q1 PI), the Cutter Drive
Motor (MOT1 PI), and the LVPSI
Driver PWB (A2 P211) for damage and
ensure that the connectors are seated
correctly.
Remove any strips of media that are
present.
Procedure
Enter the code [0721] in order t o check the
Cutter Home Sensor. The Control Panel
display indicates a (00) when the sensor is
actuated, and the window in the disk i s
aligned with the sensor.
Disconnect the Cutter Drive Motor connector
(MOT1 PI
J I ) .
Manually rotate the Encoder
Disk to align the window in the disk with the
sensor. Then rotate the disk so that, the disk
is not in alignment with the sensor.
The display changes from (00) t o (01) when
the disk is rotated.
V N
Go t o FLAG
1
and check for an open
circuit in the wires to the Cutter Home
Sensor.
If there is no open circuit, replace the
Cutter Home Sensor (Q1).
If the problem persists, replace the LVPSl
DRIVER PWB (A2).
Reconnect the Cutter Drive Motor connector
(MOT1 PI JI). Disconnect the Cutter Home
Sensor connector (Q1 PI). Close the Cutter
Drawer. Enter the code [0723] in order t o
check the Cutter Drive Motor.
The rotation of the cutter bar can be heard.
I
Press the Stop button.
The Led CR27, located on the LVPSI
Driver PWB (AZ), is
lit.
A B C
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121 97
LL.30 Cutter Fault (WI Tag1 MOD 31) RAP
2-I~A