Sheet material feeding device, image reading device, and image forming device

Abstract

A sheet material feeding device for feeding and carrying, one by one, sheet materials carried from a document tray, comprising the document tray (22) storing the plurality of sheet materials in a stacked state, a suction roller (R1) coming into contact with the sheet materials and feeding and carrying the sheet materials to a carrying route, and a suction roller (R2) and a reverse roller (R2a) positioned on the downstream side of the suction roller (R1). In the reverse roller (R2a), a coating layer (Ct) smoothened to such a degree that the surface thereof provides luster is applied onto the outer periphery of a sponge member (SP) disposed on the inside thereof.

Description

technical field [0001] The present invention relates to a paper material conveying device, an image reading device, and an image forming device for feeding and conveying original documents. Background technique [0002] In recent years, image forming apparatuses and the like have been equipped with document reading devices that automatically convey and sequentially read paper-like documents, thereby efficiently performing image reading or image formation. In addition, as digital technology advances, the speed of reading or converting documents into electronic data, or the speed of forming images from electronic data increases, and thus a greater number of documents can be processed at high speed. In these document reading devices, the number of documents that can be set at one time is about 100 to 200, which is very large, and with the advancement of the document conveying part of the document reading device, the types of documents that can be conveyed It is also becoming m...

AI Technical Summary

Problems solved by technology

[0005] However, when an existing solid type reverse roller that is difficult to slide is used, when an image such as a letter or a picture is written on the side that is in contact with the reverse roller side of the original with a pencil or ink with poor fixability, the image will be blurred. The phenomenon of image smearing due to friction of the reverse roller and image loss, and the deterioration of the reading quality when reading the surface in contact with the reverse roller, the quality of the read data or the quality of the image formed using the data deteriorates, and the original The problem of a significant decline in the quality of the

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