Lexmark C77x Service Manual page 86

5061
Step Actions and questions
10 Is the registration home sensor operating correctly?
11
Use the
on page
Does the LED flash 8 times?
12 Make sure the pick home sensor cable is installed
correctly to the sensor and to CN6 on the system
board.
Is the cable connected correctly?
13 Is the registration home sensor operating correctly?
14 Use the Standalone Feeding Operation Test to
determine where the paper jams. Use the
system board LED error code table" on page 2-84
to help isolate problems in the feed unit assembly.
Are you able to determine where the failure is
occurring?
2-44
Service Manual
"HCIT system board LED error code table"
2-84.
Yes
Replace the
following FRUs in
the order shown:
1. HCIT system
board.
2. Feed unit
assembly.
Go to step 12
Go to step 13
Replace the
following FRUs in
the order shown:
1. HCIT system
board.
2. Feed unit
assembly.
Repair or replace
"HCIT parts as
necessary.
No
Replace the
following FRUs in
the order shown:
1. Registration
sensor.
2. HCIT system
board.
Go to step 14
Install the cable
correctly
Replace the
following FRUs in
the order shown:
1. Registration
sensor
2. HCIT system
board.
Replace the feed
unit assembly.