Sheet discharge device and image forming apparatus

A discharge device and paper technology, applied to stack receiving devices, electric recording technology using charge patterns, equipment for electric recording technology using charge patterns, etc., can solve the collapse of stacks of paper and the inability to accurately estimate the inclination of paper, etc. problem, to achieve the effect of preventing slipping

Inactive Publication Date: 2015-09-30
KYOCERA DOCUMENT SOLUTIONS INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned a changes depending on the thickness of the paper to be stapled (the thinner the paper, the larger a is), and it is not possible to accurately estimate the topmost value of the stack of paper stacked on the paper discharge tray only by counting the number of staples. paper tilt
Therefore, there is still a concern that the newly discharged paper slips out of the paper discharge tray and the stack of the paper stack collapses.

Method used

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  • Sheet discharge device and image forming apparatus
  • Sheet discharge device and image forming apparatus
  • Sheet discharge device and image forming apparatus

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Embodiment Construction

[0030] Hereinafter, a paper discharge device and an image forming apparatus according to an embodiment of the present invention will be described with reference to the drawings. figure 1 It is a diagram showing the structures of a paper discharge device and an image forming apparatus according to an embodiment of the present invention. The image forming apparatus 1 is, for example, a multifunction peripheral having multiple functions such as a copy function, a print function, a scan function, and a facsimile function. The image forming apparatus 1 includes an image forming unit 12 , a fixing unit 13 , a paper feeding unit 14 , a paper discharge mechanism 15 , a document conveying unit 6 , a document reading unit 5 , and the like in an apparatus main body 11 . Furthermore, the image forming apparatus 1 further includes a paper discharge device (post-processing device) 60 according to an embodiment of the present invention.

[0031] The device body 11 includes a lower body 111 ...

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Abstract

In a post-processing device (sheet discharge device), a pile thickness calculating section calculates, from a type and the number of paper sheets discharged through a sheet output port, a thickness of a pile, at its leading end, of sets of paper sheets on a sheet output tray (piling section), calculates a thickness of the pile, at its trailing end, of sets of paper sheets on the sheet output tray from an amount of movement of a lifting section, and calculates an angle of inclination of the uppermost set of paper sheets in the pile from the thicknesses of the pile at its leading and trailing ends, a height of inclination of the sheet output tray, and a length of the paper sheets. The control section controls the sheet discharge section to change a manner of discharging a subsequent set of paper sheets according to the calculated angle of inclination.

Description

technical field [0001] The present invention relates to a paper discharge device and an image forming apparatus, and specifically, the present invention relates to a technique for preventing paper stacked on a stacking portion from falling. Background technique [0002] An image forming apparatus or the like is provided with a paper discharge device that discharges paper after image formation or post-processing such as punching processing or stapling processing, and a paper discharge tray receives and stacks the discharged paper. In such a paper discharge device, if the stacked state of the paper is disturbed or the like occurs during the stacking of the paper on the paper discharge tray, the paper is not properly stacked on the paper discharge tray. Therefore, some people use the following technology: when the upper surface of the paper stack stacked on the paper discharge tray is not in the proper vertical position with respect to the paper discharge port by a detection se...

Claims

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Application Information

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IPC IPC(8): B65H43/00B65H31/00G03G15/00
CPCB65H2405/11151B65H31/10B65H2701/18292B65H2511/13B65H2801/27B65H31/04B65H2511/152B65H37/04B65H2511/21B65H2301/421B65H29/00B65H31/26B65H2301/42194B65H2511/514B65H2301/4219B65H43/06B65H2301/133G03G15/6552G03G2215/00911B65H2511/15B65H2220/01B65H2701/1313B65H2220/03
Inventor 野田辰夫柳乐二郎
Owner KYOCERA DOCUMENT SOLUTIONS INC
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