Scanner On HP LaserJet 3055
LaserJet 3055 is an all-in-one printing and scanning device. Here are some notes about using its scanner part.
When LaserJet 3055 is connected via USB, scanner works out of box if you have installed sane and added yourself to the scanner group:
$ sane-find-scanner found USB scanner (vendor=0x03f0 [Hewlett-Packard], product=0x3417 [HP LaserJet 3055]) at libusb:002:011
For connecting to your LaserJet 3055 over network you will need the hplip package.
You need not do any configuration and simply specify full device for your scanning program in the command line:
xsane hpaio:/net/HP_LaserJet_3055?ip=[IP of your scanner]
Or you may configure your printer/scanner so it would be auto detected by scanning programs. Device should be configured via the hp-setup script with graphical interface, which is a part of the hplip package. Configuring device via standard cups setup would not be enough; it will configure the printer, but wont make the scanner auto detectable.