Lexmark W840 - Page 75

Diagnostic information 2-19
4024-XXX
4 Check the media position.
Open the printer left door assembly, and visually check
it.
Does the media touch the sensor (registration)?
Remove the media. Go to step 5.
5 Check the media position.
Open the 2TM/TTM left door assembly, and visually
check it.
Does the media touch the tray 4 feed-out sensor?
Remove the media. Go to step 6.
6 Check the sensor (registration) for proper operation.
1. Enter Diagnostics mode.
2. Select BASE SENSOR TESTS.
3. Select Media Path.
4. Select Registration.
Open the printer left door assembly, and visually check
it.
Does the display on the operator panel change every
time the actuator for the above sensor operates?
Go to step 8. Go to step 7.
7 Check the sensor (registration) for proper connection.
Is the above sensor connected properly?
Replace the sensor
(registration).
Refer to the Printer
Service Manual.
Replace the
connection.
8 Check the sensor (tray 3 feed-out) for proper operation.
1. Enter Diagnostics mode.
2. Select INPUT TRAY TESTS.
3. Select Sensor Tests.
4. Select Tray 3.
5. Select Pre-feed.
Open the 2TM/TTM left door assembly, and visually
check it.
Does the display on the operator panel change every
time the actuator for the above sensor operates?
Go to step 10. Go to step 9.
9 Check the sensor (tray 4 feed-out) for proper
connection.
Is the above sensor connected properly?
Replace the sensor
(tray 4 feed-out).
Go to “2X 500-
sheet drawer
(2TM)—sensor
(tray 4 feed-out)
removal” on
page 4-38.
Replace the
connection.
10 Check the 2TM/TTM controller card assembly and the
printer engine card assembly for proper connection.
Are connectors P541 and P413 on the above cards
connected properly?
Go to step 11. Replace the
connection.
Step Check Yes No