Canon SELPHY CP510 Printer Software Manual page 24

2
Select the portion of the image to be printed, then close the
Trimming window.
Since a slight border is trimmed from the image during borderless
printing, we recommend that you select an area that is slightly larger
than the part of the image you want to print.
The Trimming window closes and the selected area appears in the Print
window.
3
Click the (PRINT) button to start printing.
24
After selecting
the portion to be
printed, clicking
this closes the
window.
The area inside
the dotted line is
the portion of the
image to be
printed.
Changes the
size of the
window.