Service Checks - 2000-Sheet Dual Input (Ttm); Sensor (Pre-Feed) On Jam (Tray 3 Media Feed) - Lexmark W840 Service Manual

4024-XXX

Service checks - 2000-sheet dual input (TTM)

243.00 Sensor (pre-feed) on jam (tray 3 media feed)

Step
1 Check the media condition.
Is the media in the tray crumpled or damaged?
2 Check the media size setup.
Does the media size in use match the size set for tray
3?
3 Check the tray 3 rolls.
Pull out tray 3, and check it.
Are the feed roll, separation roll, and pick roll for
transport free of excess wear and contamination?
4 Check the media position.
Open the 2TM/TTM left door assembly, and visually
check it.
Does the media touch the sensor (pre-feed) of the tray 3
media feed unit assembly?
5 Check the tray 3 sensor (pre-feed) for proper operation.
1. Enter Diagnostics mode.
2. Select INPUT TRAY TESTS.
3. Select Sensor Tests.
4. Select Tray 3.
5. Select Feed-out.
Remove the media tray assembly.
Does the display on the operator panel change every
time a white piece of paper is placed over the sensing
area of the above sensor?
6 Check the tray 3 sensor (pre-feed) for proper
connection.
Is the above sensor connected properly?
7 Check the connection between the 2TM/TTM controller
card assembly and the printer engine card assembly.
Are the above cards connected properly?
2-38
Options Service Manual
Check Yes
Replace the media. Go to step 2.
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
dual input (TTM)—
feed roll removal"
on page
"2000-sheet dual
input (TTM)—
separation roll
removal" on
page
"2000-sheet dual
input (TTM)—pick
roll removal" on
page
Remove the media. Go to step 5.
Go to step 7. Go to step 6.
Replace the sensor Replace the
(pre-feed). connection.
Go to "2000-sheet
dual input (TTM)—
sensor (media out)
removal" on
page 4-97.
Go to step 8. Replace the
connection.
No
"2000-sheet
4-101,
4-105, and
4-108.