Tray 3 Lift Up / No Tray Failure - Lexmark W850n Service Manual

Step
5 Perform a print test.
Does the error still occur?

943.00 Tray 3 lift up / no tray failure

Step
1 Check the media.
Pull out tray 3, and visually check it.
Is any media loaded in tray 3?
2 Check the tray.
Is the tray 3 lift sector gear 12T damaged or any of the
tray 3 surrounding parts.
3 Check the tray 3 media feed lift motor for proper
operation.
Pull out the media tray, then push it back in.
Does the tray lift up properly?
4 Check the tray 3 media feed lift motor for proper
connection.
Is the above motor connected properly?
5 Check the tray 3 media feed lift motor for proper
operation.
Replace the media feed lift motor for tray 3 with that for
tray 4.
Pull out the media tray, then push it back in.
Does the tray lift up properly?
6 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?
Check
Check
Yes
Replace the printer Problem solved.
engine card
assembly.
Refer to the Printer
Service Manual.
Yes
Go to step 2. Load media.
Go to step 3. Replace the tray lift
sector gear 12T or
any other damaged
components.
Go to
sheet drawer
(2TM)—tray lift
gear group
removal" on
page
Go to step 7. Go to step 4.
Go to step 5. Replace the
connection.
Go to step 8. Go to step 6.
Go to step 7. Replace the
connection.
Diagnostic information
4024-110
No
No
"2X 500-
4-16.
2-23