Lexmark W840 - Page 127

Diagnostic information 2-71
4024-XXX
4 Check the sensor (pre-feed) for proper connection.
Is the above sensor connected properly?
Replace the sensor
(pre-feed).
Go to “HCF sensor
(pre-feed) removal”
on page 4-137.
Replace the
connection.
5 Check the HCF feed unit cable assembly for proper
connection.
Is the above cable assembly connected properly?
Go to step 6. Replace the
connection.
6 Check the sensor (tray 5 feed-out) for proper operation.
1. Enter Diagnostics mode.
2. Select INPUT TRAY TESTS.
3. Select Sensor Tests.
4. Select Tray 5.
5. Select Feed-out.
Pull the HCF unit assembly from the printer.
Open the HCF top door assembly.
Does the display on the screen change every time the
actuator on the above sensor operates?
Go to step 8. Go to step 7.
7 Check the sensor (tray 5 feed-out) for proper
connection.
Is the above sensor connected properly?
Replace the sensor
(tray 5 feed-out).
Go to “HCF sensor
(tray 5 feed-out)
removal” on
page 4-148.
Replace the
connection.
8 Check the HCF feed lift motor for proper operation.
1. Enter Diagnostics mode.
2. Select MOTOR TESTS.
3. Select Tray 5 feed mtr.
Does the above motor rotate normally?
Go to step 10. Go to step 9.
9 Check the HCF feed lift motor for proper connection.
Is the above motor connected properly?
Replace the HCF
media feed lift
motor.
Replace the
connection.
10 Check the HCF pick solenoid assembly for proper
operation.
Perform a print test from tray 5.
Does the HCF pick solenoid operate properly?
Go to step 12. Go to step 11.
11 Check the HCF pick solenoid assembly for proper
connection.
Is the above component connected properly?
Replace the HCF
pick solenoid.
Go to “HCF pick
solenoid assembly
removal” on
page 4-136.
Replace the
connection.
12 Perform a print test.
Does the error still occur?
Replace the HCF
controller card
assembly.
Go to “HCF
controller card
assembly removal”
on page 4-152.
Go to step 13.
Problem solved.
Step Check Yes No