Lexmark M5150 Service Manual page 306

Action
Step 4
Check the lower interface cable. If damaged, then replace the lower
interface cable. See "Stapler lower interface cable removal" on
page 661.
Reseat the connector (J15) on the controller PCBA, then POR the machine.
Does the error remain?
Step 5
Open the staple cartridge access cover. Remove the staple cartridge, and
then do the following:
• Check the cartridge for damage.
• Make sure the stapler carriage mechanism is free from obstruction.
Remove excess staple wire and media fragments.
Does the error remain?
Step 6
Open the left cover. Reseat the cables (J17 and J11) on the controller PCBA,
then POR the machine.
Does the error remain?
Step 7
Remove the stapler carriage. Manually turn the gears to open the stapling
mechanism. While open, check the area under the stapling mechanism
and make sure it is free from obstructions.
Is it free of damage?
Step 8
Reseat all connectors on the controller PCBA.
Does the error remain?
Yes
Go to step 5.
Replace the stapler
cartridge.
If the error persists,
then go to step 6.
Go to step 7.
Go to step 8.
Replace the controller
PCBA. See
controller PCBA
removal" on page
663.
If the error persists,
then replace the staple
finisher. See
finisher option
removal" on page
621.
Diagnostic information
306
No
The problem is solved.
The problem is solved.
The problem is solved.
Replace the stapler
carriage assembly. Go
to "Stapler carriage
assembly removal" on
page 628.
The problem is solved.
"Stapler
"Staple
4063