Comment 1 for bug 474811

I've found that changing:
*ImageableArea Letter/Letter 8.5x11in: "9.00 36.00 603.00 787.03"

in /etc/cups/ppd/d1660.ppd to:
*ImageableArea Letter/Letter 8.5x11in: "9.00 51.51 603.00 726.00"

fixes:
- Truncation
- Stray marks
- Page Alignment with the Sheet (rulers align to sheet)

for the test page.

However, the blank space at the top expands to 15/16" or 24mm.
And, I know that much of that area is printable. I'm just not
sure how to extend the top edge without messing up the
alignment of the test rulers on the sheet.

By the way, instead of the "d1660" in the file name (as shown
above), use the name that you gave to your printer.

If you wish, you could propagate this change back to the HPLIP
ppd files:

hplip-3.10.5/ppd/hpcups/hp-deskjet_d1600_series.ppd.gz
hplip-3.10.5/ppd/hpijs/hp-deskjet_d1600_series-hpijs.ppd.gz

For documents other than the test page, they should line up
correctly, but may possibly get truncated.

For now, this seems acceptable to me.