I've been seeing this since Leopard (10.5). If I erase my hard disk before installing a new version of OS X, the install the OS, then migrate all settings over from a cloned backup using Migration Assistant, everything is preserved except printers. Anyone else? To make matters worse, I just installed Mavericks (10.9.2) for the first time, and after the migration, not only were no printers preserved, but the OS did not automatically offer to download drivers for my HP 2015dn printer (either networked or via USB). I had to download the drivers (i.e. PPDs) manually.
Is this to be expected?