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Sheet turn-over device and imaging forming device

A flipping device and thin sheet technology, which is applied in the direction of flipping objects, electric recording technology using charge patterns, and equipment using electric recording technology using charge patterns, can solve problems such as traces of clamping force bands and sheet damage, and avoid Reduced print quality, improved stability, anti-flapping effects

Inactive Publication Date: 2006-04-12
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] In addition, in this structure, since the sheet S is only clamped and conveyed by the two belts 7, 8, in order to realize conveyance without sheet deviation, the clamping force of the belts 7, 8 must be increased, and the increased clamping force May cause marks to appear on the belt
In addition, the sheet tends to cause flapping during conveyance at a portion other than the portion gripped by the gripping claws, resulting in damage to the sheet

Method used

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  • Sheet turn-over device and imaging forming device
  • Sheet turn-over device and imaging forming device
  • Sheet turn-over device and imaging forming device

Examples

Experimental program
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Embodiment Construction

[0031] Below, will refer to Figures 1 to 8 A sheet reversing device and an image forming device embodying the present invention will be described.

[0032] figure 1 is a side sectional view of an image forming apparatus embodying the present invention; figure 2 is a perspective view of the sheet turning device of the present invention as a turning unit; image 3 It is a top view of the turning device realizing the present invention; Figure 4 It is a side view to realize the turning device of the present invention; Figure 5 is a side view showing the conveyance start position in the turning device embodying the present invention; Figure 6 is a side view showing the delivery end position in the turning device embodying the present invention; Figure 7 is a side view showing another method of separating the sheet from the adsorption tape 33 of this embodiment; and Figure 8 is a perspective view of the inverting unit of this embodiment during sheet conveyance.

[003...

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PUM

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Abstract

In a sheet reversing unit, an attraction belt is supported, in a 180 DEG twisted position, between a belt driving roller at a conveying start position and a belt driving roller at a conveying end position, and a sheet is conveyed by providing the attraction belt with an electrostatic force from an AC power supply and thus by being attracted to the attraction belt, whereby the sheet is reversed.

Description

technical field [0001] The present invention relates to an image forming apparatus such as a copying apparatus, a printer, or a facsimile apparatus, and more particularly, an apparatus for reversing a sheet in the case of double-sided imaging of the sheet. Background technique [0002] There is known an image forming apparatus, such as a copying machine, a printer, or a facsimile, which is provided with a mode for forming images on both the front and back sides of a sheet (hereinafter referred to as a double-sided image forming mode). In this double-sided image forming mode, image formation on both sides of a sheet is achieved by reversing the sheet by a sheet reversing device provided in the image forming apparatus. [0003] Figure 10 is a side sectional view showing the configuration of a conventional zigzag sheet reversing device provided for a double-sided image forming mode. [0004] The sheet reversing apparatus 100b is provided with: a conveyance rail 101 for receiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/23B65H15/00B65H5/02
CPCB65H2555/41B65H29/16B65H2404/261B65H2301/33212B65H2301/5322B65H2301/33224B65H5/004B65H2301/5133B65H2301/5132B65H15/00B65H15/012
Inventor 阿形淳
Owner CANON KK