(Yes I lose things on the net easily, hence its here)
Printing to HP2600n with CentOS
1. Download foo2hp
wget -O foo2zjs.tar.gz http://foo2zjs.rkkda.com/foo2zjs.tar.gz
2. Extract
tar zxvf foo2zjs.tar.gz
cd foo2zjs
3. Install
make
./getweb 2600n # Get HP LaserJet 2600n .ICM files
make install
make cups
4. Addprinter
system-config-printer