Hcf Top Door Assembly Open - Lexmark W840 Service Manual

Step
4 Perform a print test.
Does the error still occur?

HCF top door assembly open

Step
1 Check the HCF top door assembly for deformation.
Does the actuator on the HCF top door assembly
operate the actuator on the HCF top door interlock
switch?
2 Check the switch (HCF top door interlock) for proper
operation.
1. Enter Diagnostics mode.
2. Select BASE SENSOR TESTS.
3. Select Cover and Door.
4. Select Door K HCF top.
Open the HCF top door assembly.
Does the display on the operator panel change every
time the actuator on the above switch operates?
3 Check the switch (HCF top door interlock) for proper
connection.
Is the above switch connected properly?
4 Perform a print test.
Does the error still occur?
5 Perform a print test.
Does the error still occur?
Check
Check
Yes
Replace the printer Problem solved.
engine card
assembly.
Refer to the Printer
Service Manual.
Yes
Go to step 2. Replace the HCF
top door assembly.
Go to
door assembly
removal" on
page
Go to step 9. Go to step 3.
Replace the switch Replace the
(HCF top door connection.
interlock).
Go to "HCF switch
(top door interlock)
removal" on
page 4-147.
Replace the HCF Problem solved.
controller card
assembly.
Go to "HCF
controller card
assembly removal"
on page 4-152.
Go to step 5.
Replace the printer Problem solved.
engine card
assembly.
Refer to the Printer
Service Manual.
Diagnostic information
4024-XXX
No
No
"HCF top
4-146.
2-79