HP Deskjet 450 Mobile Printer series - Manual (Page 63)

ENWW 7-15
Wireless printing problems
Infrared printing does not work
Check for obstacles
Clear any obstacles between the printer and the device from which you are
sending the print job. Sunlight, heat from nearby equipment, or other
sources of infrared radiation can also cause transmission errors.
Move closer to the printer
Make sure the device is no more than three feet (one meter) from the
printer when you send the print job, and that the ports face each other as
squarely as possible.
Send the print job again
There may be a loss of data; try sending the print job again.
Check software
Make sure any necessary software is installed in the host device, for
example, BtPrint for Palm OS PDA users. If you are still having problems,
consult the documentation for the PDA or notebook computer.
Bluetooth printing does not work
Check the wireless settings
From the Toolbox, click the Printer Services tab and then click the
Configure Bluetooth Settings button. Make sure your Bluetooth settings
are correct. Also see Bluetooth printing .
Send the print job again
There may be a loss of data; try sending the print job again.
Check the software
Make sure any necessary software is installed in the host device, for
example, BtPrint for Palm OS PDA users. If you are still having problems,
consult the documentation for the PDA or notebook computer.
For more information on using Bluetooth, see the wireless printing guide at
http://www.hp.com/support/dj450 .