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Sheet feeding device and image forming device

一种图像、片材的技术，应用在打印装置、应用电荷图形的电记录工艺、应用电荷图形的电记录工艺的设备等方向，能够解决弯曲部形成不充分、缩小、难以消除歪斜等问题

Active Publication Date: 2016-04-06
KONICA MINOLTA BUSINESS TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, when using the pair of registration rollers for skew correction, a corresponding space is required to form the curved portion of the paper, so if the distance from the supply tray to the pair of registration rollers is reduced as described above, the space required for forming the curved portion has to be reduced. space, there is a problem that it is easy to make insufficient formation of the bending part, and it is difficult to eliminate the skew

Method used

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  • Sheet feeding device and image forming device
  • Sheet feeding device and image forming device
  • Sheet feeding device and image forming device

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Experimental program
Comparison scheme
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no. 1 approach

[0024] Hereinafter, an image forming apparatus including the sheet feeding device according to the first embodiment of the present invention will be described with reference to the drawings.

[0025]

[0026] figure 1 It is a schematic diagram for explaining the configuration of a printer, which is an example of an image forming apparatus including the sheet feeding device according to the first embodiment of the present invention. This printer is configured to form a monochromatic toner image on a recording sheet such as paper or an OHP sheet.

[0027] The image forming apparatus shown in this figure has a photosensitive drum 11 that is rotationally driven in a direction indicated by an arrow A. As shown in FIG. The photosensitive drum 11 is supported in a horizontal state along a direction from the front side to the back side of the image forming apparatus (from the front side to the rear side of the paper).

[0028] Around the photosensitive drum 11, a charger 12 for fo...

no. 2 approach

[0116] The configuration of the sheet feeding mechanism according to the second embodiment is basically the same as that of the sheet feeding mechanism 41 according to the above-mentioned first embodiment. The configuration is different from that of the sheet feeding mechanism 41 according to the first embodiment.

[0117] Hereinafter, the same symbols as those in the first embodiment are attached to the common parts, the description thereof will be omitted or simplified, and the differences will be mainly described.

[0118] Figure 5 It is a partially cutaway perspective view showing the configuration of two main parts according to the second embodiment.

[0119] As shown in the figure, in the sheet feeding mechanism 241 of the second embodiment, there is no structure corresponding to the connecting portion 160, and the main registration roller 350 corresponding to the main registration roller 150 of the first embodiment is not divided by three inner parts. The contact gea...

no. 3 approach

[0148] The configuration of the sheet feeding mechanism according to the third embodiment is basically the same as that of the sheet feeding mechanism 41 according to the above-mentioned first embodiment, but the configuration of the part corresponding to the main registration roller 150 is the same as that of the first embodiment. The sheet feeding mechanism 41 is different.

[0149] Hereinafter, the same reference numerals as those in the first embodiment will be attached to the common components, and the description will be omitted or simplified, and the differences will be mainly described.

[0150] Figure 7 It is a perspective view showing the configuration of main parts of the sheet feeding mechanism 441 according to the third embodiment.

[0151] As shown in the figure, in the sheet feeding mechanism 441 of the third embodiment, the structure of the connecting portion 460a corresponding to the connecting portion 160 of the first embodiment is different, and also corre...

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Abstract

The invention provides a sheet feeding device and an image forming device. An image forming apparatus including a sheet feeding mechanism (41), wherein the feeding mechanism (41) has a driving source not shown, and is formed so that a finishing roller (190) presses a feeding roller (170) rotationally driven by the driving source ), and use the secondary registration roller (180) (hereinafter referred to as "S roller 180") to press the main registration roller (150) (hereinafter referred to as "M roller 150"), viewed from the rotation direction of the supply roller (170) , the supply roller (170) and the M roller (150) are arranged in such a way that at least a part of them overlaps, and the positions of the supply roller (170) and the M roller (150) are different in the above-mentioned rotation direction, and from the above-mentioned rotation The finishing roller (190) and the S roller (180) are arranged so as not to overlap each other when viewed in the axial direction.

Description

technical field [0001] The present invention relates to a sheet supply device and an image forming apparatus including the sheet supply device. Background technique [0002] This application claims priority from Japanese Patent Application No. 2012-57584, the entire contents of which are incorporated herein. [0003] Image forming apparatuses such as copiers, printers, facsimile machines, and multifunction machines of these apparatuses are generally formed in such a configuration that a toner image formed on an image carrier such as a photosensitive drum or an intermediate transfer belt is transferred to a side along a supply portion. After being deposited on the recording sheet conveyed along the conveying path, the toner image is fixed on the recording sheet by a fixing unit. [0004] In such an image forming apparatus, for example, as described in Japanese Patent Application Laid-Open No. 2002-244526, generally, the recording sheets are stored in a stacked state in the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H3/06B65H9/16
CPCG03G15/6511G03G15/6567B41J13/26
Inventor 永岛照夫一柳雅生中村康夫川井雅史新井笃盐川康夫
Owner KONICA MINOLTA BUSINESS TECH INC
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