If you purchased the printer after you installed Windows, you
may not have added the printer to Windows yet. QuickBooks is only
aware of the printers you've added to Windows. For information
on how to add a new printer, see the documentation that came with
your copy of Windows.
When you add a new printer, Windows asks you to insert the disk
that contains the driver for your printer (the "driver"
is software that enables Windows to work with your printer). Your
Windows installation disks contain drivers for many commonly
available printers. If there is no driver for your printer on the
Windows installation disks, check the materials that came with your
printer to see if the printer manufacturer provided a driver disk.
In some cases, you can use a generic driver that emulates several
different printers. See your printer manual for details.