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Sheet supplying device and image forming apparatus

A supply device, sheet material technology, applied in the direction of equipment, object supply, supply workbench, etc.

Inactive Publication Date: 2013-04-24
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if it takes about 320 milliseconds to inspect the sheet side of the sheet Sb, the productivity drops from about 120 sheets per minute (about 500 milliseconds per sheet) to about 71 sheets per minute (about 500 milliseconds per sheet). about 820 milliseconds)

Method used

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  • Sheet supplying device and image forming apparatus
  • Sheet supplying device and image forming apparatus
  • Sheet supplying device and image forming apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0074] Hereinafter, typical embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0075] figure 1 is a diagram showing a schematic configuration of a printer as an image forming apparatus provided with a sheet feeding device according to an embodiment of the present invention.

[0076] exist figure 1 Among them, the image scanning unit 130 is provided on the upper part of the printer body 101 of the printer 100, and is used to scan a document D placed on a platen glass 120a serving as a document placement table by an automatic document feeder 120. Further, an image forming section 102 and a sheet feeding device 103 for feeding sheets S to the image forming section 102 are provided below the image scanning section 130 .

[0077] Here, the image forming section 102 includes a photosensitive drum 112 , a developing device 113 , and a laser scanning unit 111 . Further, the sheet feeding device 103 includes a plurality ...

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PUM

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Abstract

Even if a sheet surface detection mechanism (49) outputs a signal indicating that an uppermost sheet (Sa) among separated and lifted sheets is within a conveyance range, if a trailing edge sheet surface sensor (56) outputs a signal indicating that the uppermost sheet among the separated and lifted sheets is lower than the conveyance range when the conveyed uppermost sheet (Sa) passes by the trailing edge sheet surface sensor (56), a lifting and lowering portion (M1) is controlled to lift the tray (12) so that the uppermost sheet (Sa) is positioned within the conveyance range.

Description

technical field [0001] The present invention relates to an image forming apparatus for forming an image on a sheet, and more particularly, to an image forming apparatus that blows air to a sheet to separate the sheets from each other and feed them through an image forming section. Background technique [0002] Conventionally, image forming apparatuses such as printers and copiers include a sheet feeding device for feeding sheets one by one from a sheet accommodating portion accommodating a plurality of sheets. As an example of a sheet feeding device, as described in US Pat. The end of the stack of sheets supported by the lift tray is blown up to a plurality of sheets, and only one sheet at a time is sucked to a suction conveyor belt provided above the lift tray. [0003] Figure 13 An example of a conventional blown type sheet feeding device is shown. Such as Figure 13 As shown, an elevating tray 12 on which a plurality of sheets S are stacked is set in the sheet containe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H1/00B65H1/04B65H3/08B65H3/12B65H11/00G03G15/00
CPCB65H2405/15B65H2801/06B65H1/14B65H2511/152B65H3/48B65H7/02B65H2406/323B65H2405/353B65H3/128B65H2511/20B65H2511/15B65H2220/02B65H2220/11B65H2220/01
Inventor 池田太郎山中祐二小菅一弘
Owner CANON KK