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Curl correcting device and image forming device including same

A correction device and a curling technology, which are applied in the fields of image forming devices and curl correction devices, can solve problems such as inability to properly perform sheet correction, and achieve the effect of suppressing curvature

Active Publication Date: 2022-03-01
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, the correction of the curl of the sheet cannot be properly performed.

Method used

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  • Curl correcting device and image forming device including same
  • Curl correcting device and image forming device including same
  • Curl correcting device and image forming device including same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Hereinafter, a curl correction device and an image forming apparatus according to an embodiment of the present invention will be described with reference to the drawings. In addition, in the following, the directional relationship will be described using the directions of front and rear, left and right, and up and down. However, this description is only for the sake of convenience, and is not intended to limit a certain direction. In addition, in the following description, the term "sheet" refers to plain paper, thick paper, postcards, translucent copy paper, or other sheet materials subjected to image forming processing.

[0016] (Overall structure of image forming apparatus)

[0017] figure 1 It is a schematic diagram showing the internal structure of the image forming apparatus 1 according to one embodiment of the present invention. figure 1 The illustrated image forming apparatus 1 is an inkjet recording apparatus that ejects ink to form (record) an image on a she...

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PUM

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Abstract

The present invention provides a curl correcting device for correcting curl of a conveyed sheet. The curl correction device includes a plurality of support rollers, an endless conveyor belt, curl correction rollers, and an abutting member. The plurality of support rollers are provided rotatably about a shaft extending in a direction perpendicular to the conveying direction of the sheet. The endless conveyor belt is tensioned and erected on the plurality of support rollers to rotate and move circumferentially along the conveying direction. a curl correcting roller that is pressed against the outer peripheral surface of the endless conveyor belt between the plurality of support rollers for forming a gap, and corrects curl of the sheet passing through the gap. The endless conveyor belt has a shape that curves along the peripheral surface of the curl correction roller. The abutting member is arranged to face an axial center portion of the decurling roller, and abuts against the decurling roller to prevent bending of the decurling roller.

Description

technical field [0001] The present invention relates to a curl correcting device for correcting curl of a sheet on which an image is formed, and an image forming apparatus including the same. Background technique [0002] It is known that an image forming apparatus such as a printer is equipped with a curl correcting device for correcting curl of a sheet on which an image is formed. A conventional curl correction device includes an endless conveyor belt stretched over a pair of support rollers, and a curl correction roller (press roller) that is in pressure contact with the outer peripheral surface of the endless conveyor belt. In the curl correcting device, the curl of the sheet is corrected by passing the sheet through a gap portion formed on the endless conveyor belt by pressure contact of the curl correcting roller. [0003] However, the curl correcting rollers that are pressure-contacted to the outer peripheral surface of the endless conveyor belt may sometimes move aw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H29/70B41J2/21
CPCB65H29/70B41J2/21B65H2701/19B41J11/007B41J11/0005B41J13/025B65H2801/27B65H2301/51256B65H2404/262B65H2404/2693B65H2404/1521B65H29/52B41J13/076B41J11/0045
Inventor 宫越直人
Owner KYOCERA DOCUMENT SOLUTIONS INC