This article documents an issue and resolution when using a Hewlett-Packard 842C printer with the Apple Pro Keyboard.

Symptom

Connecting a Hewlett-Packard 842C printer to an Apple Pro Keyboard's USB (Universal Serial Bus) hub may generate an error message, or may result in the printer not functioning correctly.

Products affected

• Hewlett-Packard 842C printer
• Apple Pro Keyboard

• Unplug the printer from the keyboard's hub, and plug it into one of the computer's USB ports.
• Download and install DeskJet 842C printer driver version 3.2. It is available at http://www.hp.com/cposupport/jsnav/prhome.html .