Lexmark MS81 Series Service Manual page 153

Action
Step 4
Check the sensor (pass through) for proper operation. Enter Diagnostics
Menu and navigate to:
INPUT TRAY TESTS > Sensor Test >Tray [x]
Does the display on the operator panel change every time the sensing
area of the above sensors are interrupted or blocked?
Step 5
Check the sensor (pass through):
•
make sure that the sensor is properly installed and seated
•
check if the sensor is in good condition. If damaged, then replace the
sensor (pass through). Go to
on page 408.
Re-seat the connector (J7) on the controller PCBA. POR the machine.
Does the error remain?
Step 6
Check the sensor (trailing edge):
•
make sure that the sensor is properly installed and seated
•
check if the sensor is in good condition. If damaged, then replace the
sensor (trailing edge). Go to
Re-seat the connector (J8) on the controller PCBA. POR the machine.
Does the error remain?
Step 7
Re-seat the connectors (J4, J8 and J7) on the controller PCBA.
Does the error remain?
Step 8
Remove the media tray. Manually turn the lift plate drive gear and observe
the lift plate. If the lift plate doesn't move upward, then replace the media
tray. Go to "Media tray assembly removal" on page
With the printer turned on, insert the media tray into the drawer. Viewing
from the rear side of the option, observe the lift plate if it moves up during
the insertion.
Does the lift plate automatically move up?
"Sensor (drawer pass through) removal "
"Sensor (pick) removal" on page
398.
Diagnostic information
Yes
Go to step 6.
Go to step 6.
Go to step 7.
410.
Go to step 8.
Go to step 10.
153
4063
No
Go to step 5.
The problem is solved.
The problem is solved.
The problem is solved.
Go to step 9.