Sensor (Registration) On Jam (Tray 1 Feed) - Lexmark W850n Service Manual

Step Check
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 Tray 1 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?
2 Check the media size setup.
Does the size of media, in use, match the size set for
tray 1?
3 Check the rolls for tray 1.
Remove and check tray 1.
Are the feed roll, separation roll, and pick roll free of excess
wear and contamination?
4 Check the media position.
Open the printer left door assembly, and visually check it.
Does the media touch the sensor (registration) or the
sensor (pre-feed) in tray 1 media feed unit assembly?
Check
Yes No
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 4-30.
Replace the printer Problem solved.
engine card
assembly.
Go to "Printer
engine card
assembly
removal" on
page 4-119.
Yes
Replace with new Go to step 2.
media; ensure it is
dry.
Go to step 3. Replace the
media, or change
the media size
setup.
Go to step 4. Clean or replace
the feed roll,
separation roll,
and pick roll.
Go to "Feed roll
removal" on
page 4-42,
"Separation roll
removal" on
page 4-46, and
"Pick roll
removal" on
page 4-48.
Remove the Go to step 5.
media.
Diagnostic information
4024-110
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