Abstract: The present invention provides an original convey apparatus with an original tray on which originals are rested, a conveyor for conveying the original on the original tray, a last original detector for detecting the fact that all of the originals on the original tray are conveyed, and original size information detector. Wherein an original detector position for the last original detection is changed on the basis of original size information.

Abstract: A sheet material binding apparatus for binding sheet materials with a cover material by a heat-adhesive bonding agent includes a heating plate on which the spine of the covering material having the bonding agent is placed, the heating plate being used for heating the bonding agent; a guide for supporting the covering material and the sheet materials vertically on the heating plate; a guide driver for moving the guide in a direction of a thickness of a set of the sheet materials to facilitate setting and removing of the covering material and the sheet materials; and a controller for controlling the guide driver.

Abstract: A sheet binder for binding sheets by adhering the sheets to a back of a cover member by a heat-fusible adhesive. The sheet binder includes a supporting member for supporting the cover member having the back, to an inner surface of which the heat-fusible adhesive is applied, a heat generating member disposed in the proximity of the supporting member, and an alternate magnetic field generating device for generating an alternate magnetic field to heat the heat generating member.