Lexmark MX71x Service Manual page 306

Action
Step 4
Remove the left cover and do the following:
•
Lower down the media pick actuator and then release. Check if the
actuator would spring back to its original position.
•
Manually move the media pick actuator, then check if the paper sensor
flag moves along with it. Check also for damage.
•
On the left side of the option, manually turn the media feeder motor
encoders, and check if it causes the pick tires to turn.
•
Make sure the sensor connections on the media feeder sensors are
secure.
•
Check the media level sensor on the left side of the option including
the sensor flag for damage.
If there problems with the above components, then replace the media
feeder. See "Drawer media feeder removal " on page
Reseat the connector J11 on the controller board, then POR the machine.
Does the error remain?
Step 5
Remove the input option from the printer. Check the upper interface
cable. If damaged, then replace the upper interface cable. See
upper interface cable removal" on page
Open the left cover and reseat the connector J1 on the controller board.
POR the machine.
Does the error remain?
Step 6
Check the interface cable of the printer or upper level option for damage.
Is the above component in good condition?
Step 7
Check the connectors on the controller board. If damaged, then replace
the controller board. See "Drawer controller board removal" on
page 653.
Reseat all connectors on the controller board, then POR the machine.
Does the error remain?
Step 8
If the 250/550-sheet tray option is the only input option installed, then
replace the 250/550-sheet tray option. See
option removal" on page 648.
If there are multiple input options, then remove the suspected input
option and install it as Tray 2. Run a print test, navigate to:
Reports > Device Statistics
Does the error remain?
656.
"Drawer
654.
"250/550-sheet media tray
Diagnostic information
306
Yes No
Go to step 5. The problem is solved.
Go to step 6. The problem is solved.
Go to step 7. Replace the interface
cable of the printer or
upper level option.
Replace the controller The problem is solved.
board. Go to "Drawer
controller board
removal" on page
653.
If the error remains,
then go to step 8.
Replace the input tray The problem is solved.
option. Go to
"250/550-sheet media
tray option removal"
on page 648.
7463