Obviously something's gotten fouled up with the printer, so I'd uninstall both of the entries you described, then reinstall that printer. I'd also boot to Safe Mode and check to be sure you don't have a virus or some form of malware.
I'm having a problem with a Lenovo laptop running Win7 and an HP P1102w Laserjet. I took the laptop to work and then when I brought it back home and reconnected the laptop to the printer via the USB cable the printer doesn't work. In the Control Panel there are now two icons for a P1102w printer, one that seems correct but non-functional and one that, when I click on Properties, says that the device is a DVD/CD removable USB device.
The printer is a wireless-capable printer. I'm wondering if there is some duplication/interference between the hard connection and the wireless connection, which may be automatic but I don't know how to access and adjust it. If I simply disconnect the USB cord the printer still doesn't work.