Sensor (Registration) On Jam (Tray 1 Feed) - Lexmark W840 Service Manual

Step Check
5 Check the sensor (pre-feed) for proper operation in tray 1.
1. Enter Diagnostics mode.
2. Select INPUT TRAY TESTS
3. Select Sensor test
4. Select Tray 1
5. Select Pre-feed.
Remove the media tray assembly and check it.
Does the display, on the operator panel, change every time
a white piece of paper is placed over the sensing area?
6 Check the sensor (pre-feed) connection.
Is the sensor (pre-feed) properly connected?
7 Check the media feed lift motor in tray 1 for proper
operation.
6. Enter Diagnostics mode.
7. Select INPUT TRAY TESTS.
8. Select Sensor Test.
9. Select Tray1.
10.Select Pre-feed.
Pull out tray 1 and check over.
Does the media feed lift motor rotate normally?
8 Check the media feed lift motor connection.
Is the media feed lift motor properly connected?
9 Check the media feed lift motor for proper operation of
tray 1.
Replace the media feed lift motor for tray 1 with one from
tray 2.
1. Enter Diagnostics mode.
2. Select MOTOR TESTS.
3. Select Tray1 feed mtr.
Does the motor rotate normally?
10 Perform a print test.
Does the error continue?

241.01 Sensor (registration) on jam (tray 1 feed)

Step
1 Check the media condition.
Is the media in the tray crumpled or damaged?
Check
Yes No
Ensure the media Go to step 6.
feed unit front
guide is installed
properly.
Go to step 7.
Replace the Replace the
sensor (pre-feed) connection.
Go to step 10. Skip to step 9.
Go to step 9. Replace the
connection.
Re-install the Go to step 10.
media feed lift
motor for tray 2 as
it previously was
and replace the
tray 1 motor with a
new one.
Go to "Media feed
lift motor
removal" on
page 4-31.
Replace the printer Problem solved.
engine card
assembly.
Go to "Printer
engine card
assembly
removal" on
page 4-120.
Yes
Replace with new Go to step 2.
media; ensure it is
dry.
Diagnostic information
4024-XXX
No
2-31