Sharp MX-C507P - Page 285

5028
99y errors
99y error messages
Options communication error service check
Diagnostics and troubleshooting
251
Action
Yes
No
Step 1
a Check if the firmware is updated, and then update the firmware
if necessary.
b Make sure that the printer supports the option. See the Printer,
Option, and Stand Compatibility Guide .
c Make sure that the option is properly attached to the printer or
adjacent option.
d Reset the printer.
Does the problem remain?
Go to step 2.
The problem is
solved.
Step 2
Reseat the printer interface cable on the printer controller board.
Does the problem remain?
Go to step 3.
The problem is
solved.
Step 3
Do the following to each option:
a Reinstall the option.
b Print a test page, and then check if the option is defective.
Are all options properly working?
Go to step 4.
Contact the next
level of support
Step 4
Reseat the option interface cable.
Does the problem remain?
Go to step 5.
The problem is
solved.
Step 5
Check the option interface cable for damage.
Is the cable free of damage?
Go to step 6.
Go to step 7.
Error code
Description
Action
990.xx
An equipment check condition occurred, but
the exact component failure was not
determined.
See “Options communication error
service check” on page 251 .
991.xx
An equipment check condition occurred in
the controller card.
992.xx
General software error.