| 摘要 |
In the case where since there is no recording paper in an upper stage cassette (1008H) in which recording papers of an optimum size (for example, A4 size) should be enclosed, a lower stage cassette (1008M,1008L) in which recording papers of another size are enclosed is used as a temporary paper feeding unit and a paper feed is performed, whether there is a status change such as supply of recording papers, removal of output papers from a paper ejecting unit, or the like or not is discriminated on the basis of a status change signal, whether the recording papers of the A4 size have been supplied to the upper stage cassette (1008H) or not is discriminated, and whether an automatic paper feeding mode has been set or not is discriminated. Thus, when the recording papers of the A4 size are supplied to the upper stage cassette and the automatic paper feeding mode has been set, the paper feeding (1008) unit is switched from the lower stage cassette (1008M,1008L) to the upper stage cassette (1008H). <IMAGE> |
