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Rotation detection device and toner conveying device and image forming device including the same

A technology of rotation detection and toner, applied in the direction of using optical devices to transfer sensing components, electric recording technology using charge patterns, equipment using electric recording technology using charge patterns, etc., can solve problems that cannot help image forming devices to be small issues such as

Active Publication Date: 2019-09-03
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, such a rotation detection device cannot contribute to miniaturization of the image forming apparatus.

Method used

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  • Rotation detection device and toner conveying device and image forming device including the same
  • Rotation detection device and toner conveying device and image forming device including the same
  • Rotation detection device and toner conveying device and image forming device including the same

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Embodiment Construction

[0017] Hereinafter, a rotation detection device, a toner conveying device, and an image forming device according to an embodiment of the present invention will be described based on the drawings. figure 1 It is a diagram schematically showing the internal structure of the image forming apparatus 10 according to one embodiment of the present invention.

[0018] The image forming apparatus 10 is a so-called intracavity copier, and includes an image forming unit 12 , a fixing unit 13 , a paper storage unit 14 , a paper output unit 15 , and an image reading unit 16 in an apparatus main body 11 . In addition, a part of the apparatus main body 11 is recessed below the image reading portion 16 to form the paper discharge portion 15 , so that the image forming apparatus 10 is called an in-cavity paper discharge type.

[0019] The device main body 11 includes: a lower frame body 111 , an upper frame body 112 , and a connecting portion 113 . The lower frame body 111 is in the shape of ...

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PUM

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Abstract

A rotation detection device includes a light emitting portion, a light-passing control member, and a light receiving portion. The light-passing control member controls passing of the light from the light emitting portion. The light receiving portion outputs a light receiving signal based on the light received by the respective light receiving elements as detection signals representing detection results of the rotation by the rotator. A first virtual extended line that extends the first opening margin and a light-receiving-portion center line along the first direction passing through the respective light receiving elements at the light receiving portion pass through positions shifted from a rotational center of the light-passing control member. The light receiving portion is arranged such that the first virtual extended line corresponds to the light-receiving-portion center line, when the first opening margin passes through an optical path from the light emitting portion to the light receiving portion.

Description

technical field [0001] The present invention relates to a rotation detection device capable of being installed in a small installation space without reducing the rotation detection capability of a rotation detection device for detecting rotation of a rotating body, and a toner conveying device including the same and an image forming device. Background technique [0002] An image forming apparatus such as a copying machine using an electrophotographic method includes a drive motor that is driven to rotate or various rotating bodies that are rotated by the driving force of the drive motor. For example, a conveying member that conveys toner while rotating is included as a rotating body in a toner conveying device that conveys toner to a photosensitive drum where the toner is supplied to the photosensitive drum. A developing device that forms a toner image. [0003] In the toner conveying device included in such an image forming apparatus, when the image forming operation is n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D5/34G03G15/00
Inventor 野原佑太
Owner KYOCERA DOCUMENT SOLUTIONS INC