Sheet discharge device and image forming apparatus provided with the sheet discharge device

Abstract

There is provided a sheet discharge device in which matching references are formed at a plurality of fixed positions according to the sheet sizes in order to enable handling of sheets of various sizes, also enabling stabilization of matching performance for a long period by a simple mechanism. The sheet discharge device for accumulating and matching sheets discharged from an image forming apparatus, comprising: a treating tray for receiving a sheet and then carrying out matching treatment, pressing means for moving a sheet in a direction of the matching reference in order to adjust an end of the sheet on the treating tray to a matching reference in one direction going through in a sheet discharging direction, and at least one matching member which is vertically movable at a prescribed position on the treating tray surface forming the matching reference.

Description

[0001] This application is a divisional application of the application filed on October 15, 2002 with the application number 02146854.0 and the title of the invention is "Paper Sending Device and Image Forming Device with Paper Sending Device". technical field [0002] The present invention relates to a paper delivery device and an image forming device having such a paper delivery device. The paper stacks are bound into a book with staples, etc. Background technique [0003] The image forming apparatus receives image data to be printed from, for example, an image reading apparatus, a facsimile apparatus, or a data processing apparatus such as a computer, and forms a print image on paper based on the data. [0004] The paper delivery device is a device that receives image-formed paper from such an image forming device and sends it to the paper delivery tray. The ends are aligned, and at the same time, the ends of the paper stack are stapled, or post-processing such as punchi...

AI Technical Summary

Problems solved by technology

[0011] However, the mechanisms of these prior art post-processing devices are very complicated. Even the second prior art, which simplifies the above-mentioned first prior art, has a mechanism for actuating the side fence 408 and the stapler 400 that determine the alignment standard, And the mechanism for the action of the paper bumper 402 for moving the paper toward the single side fence 408 is also very complicated, so it is difficult to reduce the cost and miniaturize the device

[0012] In addition, in order to make the side fence 408 and the stapler 400 move together, the binding position assigned to the stack of papers is a structure that is stable, and the alignment position moves with the movement of the stapler. The structure of the two actions is complicated. Due to the slippage of the synchronous belts 412, 415, etc., it is difficult to maintain the stability of the alignment reference position for a long time, causing problems in alignment

[0013] In addition, since there is no device to support the paper in the movement gap of the stapler 400, the paper will fall into the gap, and there will be a problem that it cannot be aligned correctly.

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