The HP PSC 1410 all-in-one printer is not really supported in the linux community, and very little information is available; practically none on HP’s website.

Here’s how I got it working in Suse 10.0 RC1:

By default the HPLIP drivers were installed with Suse.
If you need the drivers they can be downloaded from the sourceforge HP project: http://hpinkjet.sourceforge.net/

Download the HP 1400 series PPD from here:
http://www.linuxprinting.org/

Now you need to copy the PPD file into the right directory. In my case (as root):
From the terminal, su to root and type the following.

cp HP-PSC_1400-hpijs.ppd /usr/share/cups/model/HP

Go into YAST, Hardware, and printers. From there you can select the HP 1400 ppd for the printer, and you should be up and printing pretty pictures.