Tray 4 Lift Up / No Tray Failure - Lexmark X850e Service Manual

7500-XXX
Step
6 Check the tray 3 sensor (media level) for proper
operation.
1. Enter the Diagnostics Menu.
2. Touch INPUT TRAY TESTS.
3. Touch Sensor Test.
4. Touch Tray 3.
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 display on the operator panel change every
time the sensing area of the above sensor is blocked?
7 Check the sensor (media level) for proper connection.
Is the above sensor connected properly?
8 Check the switch (TTM media size) for proper
connection.
Is the above switch connected properly?
9 Perform a print test.
Does the error still occur?
10 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?
2-170
MFP Service Manual
Check
Check
Yes
Go to step 8. Go to step 7.
Replace the sensor Replace the
(media level). connection.
Go to "2000-sheet
dual input (TTM)–
sensor (media
level) removal" on
page 4-254.
Replace the switch Replace the
(TTM media size). connection.
Go to "2000-sheet
dual input (TTM)–
switch (TTM media
size) removal" on
page 4-242.
Replace the 2TM/ Problem solved.
TTM controller card
assembly.
Go to "2000-sheet
dual input (TTM)–
2TM/TTM controller
card assembly
removal" on
page 4-274.
Go to step 10.
Replace the printer Problem solved.
engine card
assembly.
Go to "Printer
engine card
assembly removal"
on page 4-117.
Yes
Go to step 2. Load media
properly.
No
No