Sharp MX-C507P Service Manual page 220

Action
Step 4
Make sure that the printer is using the latest firmware version, and
update if necessary.
Does the problem remain?
Disabled port service check
Action
Step 1
a
Make sure that the cables connected to the ports are properly
installed.
b
Check the cables for damage, and replace if necessary.
Does the problem remain?
Step 2
Enter the Network/Ports menu and make sure that the applicable
port settings are enabled.
Does the problem remain?
Step 3
If applicable, make sure that the option card is supported.
Does the problem remain?
Step 4
Check the controller board pins for damage.
Are the pins free of damage?
Step 5
Replace the controller board. See
page 393.
Does the problem remain?
Step 6
Make sure that the printer is using the latest firmware version, and
update if necessary.
Does the problem remain?
"Controller board removal" on
Diagnostics and troubleshooting
186
Yes
Contact the next
level of support.
Yes
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 6.
Go to step 6.
Contact the next
level of support.
5028
No
The problem is
solved.
No
The problem is
solved.
The problem is
solved.
The problem is
solved.
Go to step 5.
The problem is
solved.
The problem is
solved.