Epson STYLUS PHOTO R300 Series Operation Manual page 23

Memory card data format
You can use image files that meet the following requirements.
Digital camera
File format
Image size
Number of files
*1
:DCF stands for the "Design rule for Camera File system" standard, set by the
Japan Electronics and Information Technology Industries Association (JEITA).
*2
:Supports Exif Version 2.1/2.2.
Note:
File names containing double-byte characters are not valid when
printing directly from a memory card.
DCF version 1.0 compliant
JPEG format image files
version 1.0 compliant digital camera
Vertical 120 to 4600 pixels, horizontal 120
to 4600 pixels
Up to 999
*1
*2
taken with a DCF
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