Lexmark MX71x Service Manual page 183

Action
Step 4
a
Make sure the following components are properly installed:
•
sensor (right tamper motor HP)
•
sensor (left tamper motor HP)
•
tamper motor (right)
•
tamper motor (left)
b
Check the tamper assembly components:
• Check if the tampers can be adjusted. Move the right and left
tampers to the middle, and then back to its original position.
• Check the tamper assembly mechanism and home position sensor
flags for damage.
Are the tamper assembly components functional and free of damage?
Step 5
Check the tamper drive belt.
Is it free of damage?
Step 6
a
Reseat the cable J11 on the controller board. Reseat the same cable
on the sensor (right tamper motor HP) and sensor (left tamper motor
HP) end.
b
Swap the sensor (right tamper motor HP) and sensor (left tamper
motor HP).
Does the same error occur?
Step 7
a
Reseat the cable J6 on the controller board, then reseat the same cable
on the tamper motor end.
b
Swap the left and right tamper motors and take note of the error code.
Does the same error occur?
Step 8
Open the left cover, reseat all connectors on the controller board and then
POR the machine.
Does the error remain?
Yes
Go to step 5.
Go to step 6.
Go to step 7.
Go to step 8.
Replace the controller
board. See
offset stacker
controller board
removal" on page
756.
If the error persists,
then replace the staple
finisher option. See
"Staple finisher/offset
stacker option
removal" on page
723.
Diagnostic information
183
No
Replace the tamper
assembly. See
assembly removal" on
page 747.
Replace the tamper
drive belt. See
drive belt removal" on
page 750.
If a 452.73 or 452.74
error occurs, then
replace the sensor (left
tamper motor HP). See
"Sensor (left tamper
motor HP) removal"
on page 742.
If a 452.73 or 452.74
error occurs, then
replace the left tamper
motor. See "Tamper
motor (left) removal"
on page 749.
The problem is solved.
"Stapler/
7463
"Tamper
"Tamper