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76 Chapter 6 ENWW
USB Problems
Unable to print from a
third-party USB card.
This error occurs when the
software for USB printers
is not installed.
When adding a third-party USB card, you might
need Apple's USB Adapter Card Support
software. The most current version of this
software is available from Apple’s web site.
A USB-connected
HP LaserJet printer does
not appear in the Chooser.
This problem is caused by
either a software or
hardware component.
Software troubleshooting
● Check that your Macintosh supports USB.
● Verify if your Macintosh has Mac OS 8.6 or
later.
Hardware troubleshooting
● Check that the printer is turned on.
● Verify that the USB cable is properly
connected.
● Check that you are using the appropriate
high-speed USB cable.
● Ensure that there are not too many USB
devices drawing power from the chain.
Disconnect all devices from the chain and
connect the cable directly to the USB port on
the host computer.
● Check to see if there are more than two
non-powered USB hubs in a row on the chain.
Disconnect all devices from the chain and
connect the cable directly to the USB port on
the host computer.
Note
The iMac keyboard is a non-powered USB hub.
The LaserWriter driver
does not display USB
devices in the Chooser.
For the HP LaserJet 1300 series printer, use the
Apple Desktop utility to set up the printer.
Symptom Possible Cause Solution