Tray 4 Lift Up / No Tray Failure - Lexmark W850n Service Manual

Step
8 Check the sensor (media level) for proper connection.
Is the above sensor connected properly?
9 Check the switch (TTM media size) for proper
connection.
Is the above switch connected properly?
10 Perform a print test.
Does the error still occur?
11 Perform a print test.
Does the error still occur?

944.00 Tray 4 lift up / no tray failure

Step
1 Check the media.
Pull out tray 4, and visually check it.
Is any media loaded in tray 4?
2 Check the tray.
Are the tray 4 lift gear assembly or the surrounding
parts of it damaged?
3 Check the tray 4 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 4 media feed lift motor for proper
connection.
Is the above motor connected properly?
Check
Check
Yes
Replace the sensor Replace the
(media level). connection.
Go to "2000-sheet
dual input (TTM)—
sensor (media
level) removal" on
page 4-95.
Replace the switch Replace the
(TTM media size). connection.
Go to "2000-sheet
dual input (TTM)—
switch (TTM media
size) removal" on
page 4-83.
Replace the 2TM/ Problem solved.
TTM controller card
assembly.
Go to "2000-sheet
dual input (TTM)—
2TM/TTM controller
card assembly
removal" on
page 4-115.
Go to step 11.
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 4
lift gear assembly or
the obstacles.
Go to
dual input (TTM)—
tray 4 lift gear
assembly removal"
on page
Go to step 6. Go to step 4.
Go to step 5. Replace the
connection.
Diagnostic information
4024-110
No
No
"2000-sheet
4-113.
2-57