Lexmark W850n Service Manual page 100

4024-110
Step
7 Check the roll.
Open the printer left door assembly, and check it.
Is the transport roll assembly free of excess wear and
contamination?
8 Check the roll.
Open the printer left door assembly, and check it.
Is the roll, in the registration roll assembly, free of excess
wear and contamination?
9 Check the sensor (registration) for operation.
1. Enter Diagnostics mode.
2. Select BASE SENSOR TESTS.
3. Select media path.
4. Select Registration.
Open the printer left door assembly, and check it.
Does the display on the operator panel change every time
the sensor actuator is operated?
10 Check the sensor (registration) connection.
Is the sensor (registration) properly connected?
11 Check the registration clutch for proper operation.
1. Enter Diagnostics mode.
2. Select MOTOR TESTS.
3. Select Registrat clutch.
Does the component make an audible clicking sound when
it is operated?
12 Check the registration clutch connection.
Is the registration clutch properly connected?
13 Perform a print test.
Does the error continue?
2-80
Printer Service Manual
Check Yes
Go to step 8. Clean or replace
the transport roll
assembly.
Go to
roll assembly
removal" on
page
Go to step 9. Clean or replace
the registration roll
assembly.
Go to
"Registration roll
assembly
removal" on
page
Go to step 11. Go to step 10.
Replace the Replace the
sensor connection.
(registration).
Go to "Sensor
(registration)
removal" on
page 4-78.
Go to step 13. Go to step 12.
Replace the Replace the
registration clutch. connection.
Go to
"Registration
clutch assembly
removal" on
page 4-77.
Replace the Problem solved.
printer engine card
assembly.
Go to "Printer
engine card
assembly
removal" on
page 4-119.
No
"Transfer
4-70.
4-76.