Hcf Unit Docking Failure Or Tray 5 Set Failure - Lexmark W840 Service Manual

4024-XXX

HCF unit docking failure or tray 5 set failure

Step
1 Check the HCF unit for proper installation.
Is the HCF unit installed to the printer correctly?
2 Check the switch (HCF unit docking interlock) for
damage.
Is the switch (HCF unit docking interlock) damaged?
3 Check the switch (HCF unit docking interlock) for proper
operation.
1. Enter Diagnostics mode.
2. Select INPUT TRAY TESTS.
3. Select Sensor Tests.
4. Select Tray 5.
5. Select HCF unit docking.
Pull the HCF unit from the printer.
Does the display on the screen change every time the
actuator on the above switch operates?
4 Check the switch (HCF unit docking interlock) for proper
connection.
Is the above switch connected properly?
5 Check the sensor (HCF media tray set) for proper
operation.
1. Enter Diagnostics mode.
2. Select INPUT TRAY TESTS.
3. Select Sensor Tests.
4. Select Tray 5.
5. Select Tray set.
Pull the HCF media tray assembly out.
Does the display on the screen change every time the
actuator on the above switch operates?
6 Check the sensor (HCF media tray set) for proper
connection.
Is the above sensor connected properly.
2-80
Options Service Manual
Check Yes
Go to step 2. After reinstalling, go
to step 2.
Go to step 3. Replace the switch
(HCF unit docking
interlock).
Go to
(unit docking
interlock) removal"
on page
Go to step 5. Go to step 4.
Replace the switch Replace the
(HCF unit docking connection.
interlock).
Go to "HCF switch
(unit docking
interlock) removal"
on page 4-151.
Go to step 7. Go to step 6.
Replace the sensor Replace the
(HCF media tray connection.
set).
Go to "HCF sensor
(HCF media tray
set) removal" on
page 4-121.
No
"HCF switch
4-151.