Hi Stan,
Welcome to the forum.
2nd question first.
the page size on the preview window shows as 23.766 x 59.766 inches (360 x 360), rather than 24 x 60 in.
What QU is reporting is the printable area which (unless borderless is set) is always less than than the page size set in the driver.
There's a learning video that covers this:
http://www.youtube.com/watch_popup?v=gMzUxDP_JwM&vq=hd720The four photos show PPI values of 562, 312, 468, and 562.
It is normal to get odd numbers here. They are simply the pixel size of the image divided by the specified linear (inch) size of the print.
The (360x360) reported by QU is the "native" resolution of the printer and QU will interpolate to this print resolution so the driver does not mess around with the pixels. QU interpolation (Fusion) is unique and the best. In fact, your printer is probably capable of 720ppi when set for "finest detail". Do not confuse this with the inkjet spray pattern given in dots per inch, this number is usually higher.
See
http://www.ddisoftware.com/qimage-u/tech-prt.htmTalking about borderless, when set, the reported printer resolution increases to expand the image.
Sorry if I'm "teaching grandmother to suck eggs", I just want to be thorough
Finally, your screen shot of the queue shows the print size data being sent to the printer, just checking, is that what you expect/require?
Terry