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Sheet transfer arrangement and image forming device

A technology of conveying device and sheet material, which is applied in the direction of electric recording process applying charge pattern, equipment of electric recording process applying electric charge pattern, electric recording technique, etc., can solve the problems of increasing cost and the like

Inactive Publication Date: 2006-11-15
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case where a fan for cooling the heated sheet passing through the fixing device and a fan for cooling the control circuit board are arranged, the entire device becomes larger and costs are increased

Method used

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  • Sheet transfer arrangement and image forming device
  • Sheet transfer arrangement and image forming device
  • Sheet transfer arrangement and image forming device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0017] 1 is a diagram showing a schematic configuration of a laser beam printer as an example of an image forming apparatus having a sheet conveying device according to a first embodiment of the present invention.

[0018] In FIG. 1 , 50 is a laser beam printer that forms an image by an electro-imaging method. This laser beam printer 50 has an image forming section 51 that performs image formation, and a sheet feeder that separates sheets S and supplies them to the image forming section 51 one by one. Section 52 et al. In addition, in order to form images on both sides of the sheet S, this laser beam printer 50 is equipped with an optional component for supplying the sheet S to the re-image forming unit 51 for forming an image on the back side after forming an image on one side. Two-sided part 100.

[0019] Here, the image forming unit 51 has a process...

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PUM

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Abstract

In order to form an image on the second side of the sheet opposite to the sheet on which the image was formed on the first side by the image forming unit, and to convey the sheet again to the image forming unit, the sheet conveying device includes: A sheet with an image formed on one side is re-conveyed to a re-conveying path of the image forming section, a cooler that cools the sheet by blowing air to the sheet passing through the re-conveying path, and an electrical circuit board; and blowing from the cooler The sheet keeps the air after the sheet cools from hitting the electrical circuit board.

Description

technical field [0001] The present invention relates to a sheet conveying device and an image forming apparatus for conveying a sheet. Background technique [0002] In the prior art, in electronic image forming apparatuses such as copiers, printing machines, facsimile machines, etc., there is, for example, a second surface on the opposite side of a sheet on which an image is formed on the first surface by an image forming unit. A device that forms an image. In this way, in the case of forming images on both sides of the sheet, after copying the toner image formed on the photosensitive drum on the first side of the sheet, the toner image is heated and pressurized in the fixing device to form a toner image, and then sent through the re-conveying path. In the re-image forming section, the toner image is copied on the second side of the sheet and fixed by a fixing device. [0003] In this case, since the sheet fixed on the first side is heated, if it is sent to the re-image fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41L21/02B41J2/44B65H85/00G03G15/23
CPCG03G15/235
Inventor 君塚永一郎
Owner CANON KK