Abstract: Bypass sheet-feeding section for an electro-statographic image reproducing apparatus employing vertical sheet transport from sheet supply cassettes to the image reproducing section. The bypass sheet-feeding section serves to hold special copying sheets such as cardboard, OHP sheets, and surface-coated paper; but it can also serve to hold a stack of, for example, conventional-sized copy paper. The bypass/stack sheet-feeding section is fitted with drawer guides, and includes a sheet-loading plate, a sheet-feeding pickup roller, a sheet-feed plying roller pair and a mechanism for moving the loading plate vertically. The bypass/stack sheet-feeding section can be withdrawn integrally when it is pulled out from the side of the copier main unit.

Abstract: The size of a paper put in a tray for manual insertion is decided according to detectors provided in the tray. When detection precision of the paper size is not so high to determine paper size, it is instructed to specify a paper size manually. In another example, a paper size selection picture including a plurality of paper sizes is displayed in a touch panel for assisting an operator to select paper size manually. Thus, paper size for the tray can be specified manually, and erroneous copying can be prevented. In situations where paper size is not needed to update, paper size selection is not instructed.