Canon EOS REBEL T8i Advanced User's Manual page 442

Caution
RAW images or movies cannot be specified for printing. Note that RAW images or
movies will not be specified for printing even if you specify all images with
[Multiple].
When using a PictBridge-compatible printer, do not specify more than 400 images
for one print order. If you specify more than this, the images may not all be printed.
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