I bought a printer HP Deskjet 1515. I am having problem in printing with Windows 7 Ultimate 64-bit. With my PC/laptop I can scan & print. Diagnostic print & alignment print (HP software provided) successfully but from other applications i.e. Photoshop, Word or Windows test print, printing is not possible. I am not getting any error message. It is working with Windows 8 (tried with HP notebook) and it is also working with Windows 7 Professional. Please give appropriate guidance.