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You are unable to print from a third-party USB card.
Cause Solution
This error occurs when the software for USB printers is not
installed.
When adding a third-party USB card, you might need the Apple USB
Adapter Card Support software. The most current version of this
software is available from the Apple Web site.
When connected with a USB cable, the printer does not appear in the Print Center or Printer Setup Utility after the driver is selected.
Cause Solution
This problem is caused by either a software or a hardware
component.
Software troubleshooting
●
Check that your Macintosh supports USB and has the
appropriate USB software from Apple.
●
Verify that your Macintosh operating system is Mac OS X V10.1
or later.
Hardware troubleshooting
●
Check that the printer is turned on.
●
Verify that the USB cable is connected correctly.
●
Check that you are using the appropriate high-speed USB cable.
●
Ensure that you do not have too many USB devices drawing
power from the chain. Disconnect all of the devices from the
chain, and connect the cable directly to the USB port on the host
computer.
●
Check to see if more than two nonpowered USB hubs are
connected in a row on the chain. Disconnect all of the devices
from the chain and connect the cable directly to the USB port on
the host computer.
NOTE The iMac keyboard is a nonpowered USB hub.
ENWW Macintosh problems 167