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USB cable does not meet specifications.
► Use USB cable which meets specification Ver.1.1.
Interface is disabled.
► Check that USB interface is set to Enable.
Configuration procedure was not correctly followed or cancelled.
► Configure again from the beginning.
USB cable is disconnected or faulty.
► Check the connections; if okay, try another cable.
A USB hub is being used.
► Try connecting the printer directly to the computer.
Printout is garbled or incorrect with parallel connection.
Possible mismatch on parallel connection between computer and printer.
► Disable ECP.
Cannot print.
LPT write error.
PRNUSBx write error.
Interface is disabled.
► In the printer menu settings, enable Parallel or USB interface.
Printer is switched off.
► Turn the printer on.
Printer interface cable is disconnected.
► Reconnect the printer interface cable.
A converter, buffer, extension cable or USB hub is being used.
► Connect the printer directly to the computer.
Printer driver output port is incorrect.
► Set the correct output port for the printer (Click Start → Settings → Printers; right click the
printer icon, then click Sharing → Ports).
Printer is not selected.
► Be sure the OKI C9200 or C9400 driver is selected when printing a document, or set it as
the default printer (Click Start → Settings → Printers; right click the printer icon, then click
Set as Default).
Problem with the printer driver.
► Reinstall the printer driver.
Application error or general protection fault.
Application is not suitable for the Windows version being used.
► Upgrade the application.
Memory is insufficient for the number of applications running.
► Close all other applications.
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