Lexmark X850e Service Manual page 93

Step Check
2 Check the tray.
Are the tray lift sector gear 12T of tray 4 or the
surrounding parts of it damaged?
3 Check the tray 4 media feed lift motor for proper
operation.
Warning: Only perform this test with the paper tray
assembly removed from the machine or abnormal
grinding noises will occur.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Printer Tests.
4. Touch Tray 4 lift mtr.
Does the tray 4 media feed lift motor operate properly?
4 Check the tray 4 media feed lift motor for proper
connection.
Is the above motor connected properly?
5 Check the 2TM/TTM controller card assembly and the
printer engine card assembly for proper connection.
Are connectors P541 and P413 on the above cards
connected properly?
6 Check the tray 4 sensor (media level) for proper
operation.
1. Enter the Diagnostics Menu.
2. Touch INPUT TRAY TESTS.
3. Touch Sensor Test.
4. Touch Tray 4.
5. Touch Media level.
Remove the media tray assembly, and move the pick
roll with your finger in an up and down motion. Avoid
touching the rubber roll surface.
Does the operator panel change every time the sensing
area is blocked on the above sensor?
7 Check the tray 4 sensor (media level) for proper
connection.
Is the above sensor connected properly?
8 Check the tray 4 switch (media size) for proper
connection.
Is the above switch connected properly?
Yes No
Go to step 3. Replace the tray lift
sector gear 12T or
any other damaged
components.
Go to step 6. Go to step 4.
Replace the media Replace the
feed lift motor. connection.
"2X 500-
Go to
sheet drawer
(2TM)–media feed
lift motor removal"
on page 4-17
Go to step 6. Replace the
connection.
Go to step 8. Go to step 7.
Replace the sensor Replace the
(media level). connection.
"2X 500-
Go to
sheet drawer
(2TM)–sensor
(media level)
removal" on
page 4-23.
Replace the switch Replace the
(media size). connection.
"2X 500-
Go to
sheet drawer
(2TM)–switch
(media size)
assembly removal"
on page 4-8.
Diagnostic information
7500-XXX
2-25