Windows 7 / HP Deskjet 5550: Printer has been working fine, but for some unknown reason it has decided to change over to Excruciatingly Slow Printing Mode: instead of hearing the carrier buily scurrying back and forth, it now trundles once across, then takes a long rest, then heads back the other direction. Now, I'm getting on up in those "senior years" and so my walk-abouts and hikes are becoming more and more like that too . . . but after running HP Print & Scan Doctor and trying every reset procedure I know of, the 5550 is not up to speed here.

Any suggestions toward a solution?

Many thanks. Appreciated.