A cassette handling apparatus of a storage phosphor reader, which is used
for reading a latent image stored in a storage phosphor contained in a
cassette. The cassette handling apparatus includes: a cassette platen and
front plate for receiving a cassette having a storage phosphor; a
cassette centering guide mechanism for centering a received cassette on
the cassette platen; a cassette feed mechanism for moving a received
cassette into contact with the front plate; and a storage phosphor feed
mechanism for feeding a storage phosphor out of a received cassette into
the storage phosphor reader for processing.