Ricoh CAPLIO R4 - Manual (Page 152)

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Downloading Images from an SD Memory Card
It is possible to download images from an SD memory card to the
computer via a PC card slot or card reader.
To load an SD memory Card into a PC card slot or card reader, use
a PC card adapter.
Images in an SD Memory Card
Images are stored in an SD memory card in a hierarchy shown
below.
Note
If the card reader is SD memory card compatible (directly loadable), no PC card adapter is
required.
Term
Card Reader
This is a device connected to a computer to read the contents of cards. In addition to the
memory card adapter-type, there are card readers compatible with various types of cards,
into which you can directly load an SD memory card.
Image files