Sharp MX-C507P - Page 296

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