Follow this exactly it worked for me
So to anyone who has an HP Photosmart 7660, I have solved the issue of making the printer work on Windows 7. Go to start, go to printer and devices. Click add printer, choose LPT1 as the port, select HP then choose Deskjet 5600 (HPA) (HP), install it once it is finished click finish don't choose print page. Now right click on the printer, and choose printer properties. Go to Ports, now here is where HP made there problem. They say change the port from LPT1 to Dot 4, or the largest port. They are wrong, choose USB001 Virtual printer port for USB, now go to the General Tab,click on print test page and you're in business!!!!!!! (This is not my solution it's on page 1 but worked flawlessly when followed exactly)
So to anyone who has an HP Photosmart 7660, I have solved the issue of making the printer work on Windows 7. Go to start, go to printer and devices. Click add printer, choose LPT1 as the port, select HP then choose Deskjet 5600 (HPA) (HP), install it once it is finished click finish don't choose print page. Now right click on the printer, and choose printer properties. Go to Ports, now here is where HP made there problem. They say change the port from LPT1 to Dot 4, or the largest port. They are wrong, choose USB001 Virtual printer port for USB, now go to the General Tab,click on print test page and you're in business!!!!!!! (This is not my solution it's on page 1 but worked flawlessly when followed exactly)