Honestly,
Ditch the USB modem, or return it if you can. If it came from Verizon, ask them for an Ethernet modem (it's DSL isn't it?). It should come with two or more Ethernet ports, more than enough to plug your printer into it.
If you have to buy your own (about $30 for Ethernet, about $60 for Ethernet and wireless), you have loads of choice from Netgear, Linksys, Belkin, Zyxel, and more. Did you get any other kit from the ISP ? Or is it cable, rather than DSL ?