Sharp MX-C507P Service Manual page 296

Actions
Step 3
Replace the TMC card. See
Does the problem remain?
USB service check
Actions
Step 1
Is the USB cable properly connected to the printer and host PC?
Step 2
Try a different USB cable.
Does this fix the issue?
Step 3
Connect a different device to the USB cable.
Did the host PC see the device?
Control panel USB cable service check
Actions
Step 1
a
Remove the controller board shield. See
shield removal" on page
b
Check the USB cable on the JPFUSB1 connector on the
controller board for proper connection.
Is the cable properly connected?
Step 2
Reconnect the cable.
Does the problem remain?
Step 3
Replace the cable.
Does the problem remain?
Step 4
Replace the controller board. See
page 393.
Does the problem remain?
"TMC card removal" on page
"Controller board
392.
"Controller board removal" on
Diagnostics and troubleshooting
Yes
Contact the next
level of support.
352.
Yes
Go to step 2.
Issue fixed.
Replace the
controller board. See
"Controller board
removal" on
page 393.
Yes
Go to step 3.
Go to step 3.
Go to step 4.
Contact the next
level of support.
262
5028
No
The problem is
solved.
No
Properly connect the
cable at both ends.
Go to step 3.
There is an issue
with the host
machine.
No
Go to step 2.
The problem is
solved.
The problem is
solved.
The problem is
solved.