| 摘要 |
A copying machine includes an image-forming device and a cassette feeder accompanying a plurality of cassettes. The cassette comprises a body without a base and a base plate located at a base portion. When the cassette is inserted into the cassette feeder, a push-up member provided in the cassette feeder pushes up one end of the base plate of the cassette such that the top sheet of paper sheets stored in the cassette is brought into contact with a pick-up roller provided in the cassette feeder.
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