Canon EOS RP Instruction Manual page 527

If you print an image with a large image size using the [Index] or [Both]
o
setting ( = 318), the index print may not be printed with certain printers. In
this case, resize the image ( = 339), then print the index print.
Even if [Date] and [File No.] are set to [On], the date or file number may not
o
be imprinted, depending on the print type setting and printer.
With [Index] prints, the [Date] and [File No.] cannot both be set to [On] at the
o
same time.
When printing with DPOF, use the card for which print order specifications are
o
set. You cannot print in the specified print order if you extract just the images
from the card for printing.
Certain DPOF-compliant printers and photofinishers may not be able to print
o
the images as you specified. Refer to the printer's instruction manual before
printing, or check with your photofinisher about compatibility when ordering
prints.
Do not use this camera to configure print settings for images with DPOF
o
settings set up on another camera. All the print orders may be overwritten
inadvertently. Also, the print order may not be possible, depending on the
image type.
4
Exit the setting.
Press the < M > button.
z
Next, select [Sel.Image] or [Multiple] to
z
specify the images to be printed.
Digital Print Order Format (DPOF)
319