Simulate duplex printing on a HP printer.

HP printers don't come with duplex printing, especially those economy ones. Canon printers have duplex printing, and it made it easier for it's users to save paper. But 'duplex printing' isn't really a hardware feature, but a software implementation.

To duplex print on a HP printer (or any printer), say you wanna print 20 pages, at the print dialog, click 'Properties', then on the Paper/Quality tab click on 'Advanced'. At the Advanced Options dialog select 'Print Even Pages Only' on the Pages to Print drop down menu.

Click OK, go back and start printing (yes print even pages only, don't panic there's more to come)

After finish printing, take the whole printed pages turn it around horizontally and put it back to tray face down.

Now click 'Properties', then on the Paper/Quality tab click on 'Advanced'. At the Advanced Options dialog select 'Print Odd Pages Only' on the Pages to Print drop down menu. Click OK and print.

There you go, duplex print the manual way.

If you are printing odd number of pages say 21 pages, you have to add one additional page in front of the printed even pages before 'printing odd number of pages'.