HP OfficeJet 6700
I installed the HP OfficeJet 6700 by switching it on an following the instructions on the printer's display. That's also how I connected it to WLAN. Then, on my computer I made sure cups is running and surfed to http://localhost:631. When I clicked on Printer -> Add Printer it appeared automatically as "Network Printer". I selected DIN A4 as paper size and double-sided printing Long-Edge (Standard). This means that you will be able to bind your papers on the long edge. As driver I chose hpcups. As paper format I chose "A4 210x297mm".
Printing the test page with duplex print, this works bad. The printer cannot print onto the full length of first side because it has to keep the paper partially in in order to be ready to draw back and turn around the paper. The printer test page will be cut off at about 1.5cm above the lower end of the paper:
If you turn off duplex print this problem exists no longer:
The hpcups driver needs 3x3 millimeters of margin
The hpijs driver has a higher margin waste (13 millimeters instead of 3)