Sheet Processing Device, Image Forming Device Provided With The Same, And Sheet Bonding Method

Abstract

Provided is a sheet processing device including a carry-in path along which the paper sheet is carried in and a retreat path that branches off from the carry-in path, along which at least a part of the paper sheet stored in a stacker section is retreated in a direction opposite to a sheet conveying direction. A bonding means is disposed at a merging point between the carry-in path and retreat path. An adhesive-applied position of a preceding paper sheet is retreated to the retreat path when a next paper sheet is carried in to the stacker section, then the next paper sheet is moved to a bonding position for adhesive application. The above operations are sequentially repeated to generate a paper sheet bundle. Thus, a paper sheet bundle can be generated by bonding the paper sheets using an adhesive, so that it is possible to reduce stress to be applied to the paper sheet as compared to a case where the paper sheet bundle is bound with a metallic staple or by deforming the paper sheets themselves. Further, it is possible to comparatively reduce movement of the paper sheet applied with the adhesive to prevent the adhesive from being adhered to a portion other than the paper sheet, thereby preventing the paper sheets from being bonded to each other at a position other than a predetermined position. As a result, there can be provided a sheet processing device, that is rather small and can bond the paper sheets at a predetermined position.

Description

technical field [0001] The present invention relates to a processing device that bonds sheets carried out from an image forming apparatus such as a photocopier and a printer to form a bundle, and relates to a device capable of processing continuously carried out sheets. Background technique [0002] In general, a processing apparatus is known that aligns sheets delivered from an image forming apparatus (alignment in units of sheets), staples them, or folds them into a booklet. These processing apparatuses are equipped with a plurality of sheet stacking members for post-processing the sheets, for example, the sheets are stacked into bundles by the first sheet stacking member for staple binding, and the sheets are stacked by the second sheet stacking member. The structure of the device that gathers sheets in a bundle and performs intermediate binding to fold them into a booklet. In addition, in recent years, when performing these binding processes, binding devices that bind s...

AI Technical Summary

Problems solved by technology

[0013] However, as described above, this device carries out transportation by setting a relatively long conveyance path to the accumulator portion where the sheets are accumulated and by setting several stages of conveyance rollers in the conveyance path. Sheets coated with adhesive at the entrance of the device are conveyed to the accumulator in a relatively long path, and the adhesive may adhere to the periphery of the conveying path, causing sheet jams

Images