Sharp MX-C507P Service Manual page 270

Before troubleshooting:
1
"Procedu re bef ore start ing the 9yy service checks" on page
Perform the
2
Determine the operating system used when the error occurred. If possible, determine whether a
PostScript or P CL file was sent t o the printer when the error occurred. Ask the customer which
Solutions applications are installed on the printer.
Action
Step 1
Perform a POR.
Does the error remain?
Step 2
a
Write down the exact 900.xx error code that appears on the
display.
b
Turn off the printer.
c
Clear the print queues.
d
Disconnect all communication cables, and then remove all
memory options.
e
Remove any installed ISP.
f
Reset the printer into the Diagnostics menu.
Does the problem remain?
Step 3
Check all the cables on the controller board for proper connection.
Are the cables properly connected?
Step 4
a
Reconnect the cables.
b
Reset the printer into the Diagnostics menu.
Does the problem remain?
Step 5
a
Replace the controller board. See
on page 393.
b
Reset the printer.
Note: If a different error code displays, then go to the service
check for that error code.
Does the problem remain?
"Controller board removal"
Diagnostics and troubleshooting
236
234.
Yes
Go to step 2.
Go to step 3.
Go to step 5.
Go to step 5.
Go to step 31.
5028
No
The problem is
solved.
Go to step 6.
Go to step 4.
Go to step 6.
The problem is
solved.