A:Answer They are the same basic printer, but you can tell the difference by the letters at the end:
d stands for duplex printing, so it can print 2 sided
n stands for network printing, so it can be networked via ethernet
w stands for wireless, so it can be networks via wifi (these printers usually also have an ethernet port for hardwired networking, but not always, you'd have to read the description
f stands for fax on multifunction printers (not applicable here)
This applies to all HP printers.