250/550-Sheet Tray Undetected Service Check - Lexmark M5150 Service Manual

250/550-sheet tray undetected service check

Action
Step 1
Remove the tray from the drawer and do the following:
•
Check the paper guides for damage. Move the paper guide and verify
if it can move freely from one position to another.
•
Check the media size finger flag for damage.
•
Check the lift plate gear for damage. Manually turn the lift plate gear
and check if it causes the lift plate to move upward.
•
Check the separator gears for damage. Manually turn the gear and
check if the gears function properly.
Are the above components ok?
Step 2
Manually push the media size sensor flags and check if it would spring
back to its original position. If problems are found with the media size
sensor, then replace the input option. See
drawer assembly removal" on page
Open the left cover, and reseat the connector (J3) on the controller board.
POR the machine.
Does the error remain?
Step 3
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 4
Check the interface cable of the printer or upper level option for damage.
Is the above component still ok?
Step 5
Check the connectors on the controller board. If damaged, then replace
the controller board. See "Drawer controller PCBA removal" on
page 519.
Reseat all connectors on the controller board, then POR the machine.
Does the error remain?
"250/550-sheet media tray and
514.
"Drawer
520.
Diagnostic information
286
Yes No
Go to step 2. Replace the media tray.
Go to
assembly removal" on
page
Go to step 3. The problem is solved.
Go to step 4. The problem is solved.
Go to step 5. Replace the interface
cable of the printer or
upper level option.
Replace the controller The problem is solved.
board. Go to "Drawer
controller PCBA
removal" on page
519.
If the error remains,
then go to step 6.
4063
"Media tray
515.