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POLYGONAL MIRROR and manufacturing method, DEFLECTOR, OPTICAL SCANNING APPARATUS, IMAGE FORMING APPARATUS

A manufacturing method, technology of polygonal mirrors, applied in the field of polygonal mirrors, capable of solving problems such as image defects, scanner motor temperature rise, deformation, etc.

Inactive Publication Date: 2019-11-01
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in JP-A Hei 6-110002, with the recent acceleration of image forming equipment, polygon mirrors made of resin materials may be damaged due to the centrifugal force generated with the high-speed rotation of the scanner motor and the temperature rise around the scanner motor. tall and deformed
When the polygon mirror is deformed, image defects may occur due to deviation of the irradiation position of the laser light

Method used

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  • POLYGONAL MIRROR and manufacturing method, DEFLECTOR, OPTICAL SCANNING APPARATUS, IMAGE FORMING APPARATUS
  • POLYGONAL MIRROR and manufacturing method, DEFLECTOR, OPTICAL SCANNING APPARATUS, IMAGE FORMING APPARATUS
  • POLYGONAL MIRROR and manufacturing method, DEFLECTOR, OPTICAL SCANNING APPARATUS, IMAGE FORMING APPARATUS

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Experimental program
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Embodiment 1

[0028] refer to figure 1 and 2 , an imaging device including the optical scanning device according to the present embodiment will be described. In the following description, first, an imaging device including an optical scanning device will be described as an example, and then an optical scanning device in the imaging device will be described. Then, a polygon mirror incorporated in the optical scanning device and a scanner motor as a deflector will be described. Then, a metal mold for molding a polygon mirror and a manufacturing method of manufacturing a polygon mirror using the metal mold will be described.

[0029] First, will use figure 1 The imaging device 110 according to Embodiment 1 is described. figure 1 is a schematic sectional view of an imaging device 110 including the optical scanning device 101 according to Embodiment 1. The image forming apparatus 110 according to this embodiment includes the optical scanning apparatus 101, and is an image forming apparatus ...

Embodiment 2

[0054] refer to Figures 11 to 15 , the polygon mirror according to Embodiment 2 and the manufacturing method of the polygon mirror will be described. In addition, the deflector including the polygon mirror, the optical scanning device including the deflector, and the imaging device including the optical scanning device are similar to those in Embodiment 1 described above, so descriptions thereof will be omitted in this embodiment. In the following description, first, a polygon mirror will be described, and then a metal mold for molding the polygon mirror and a manufacturing method of manufacturing the polygon mirror using the metal mold will be described.

[0055] Figure 11 is a top perspective view of the polygon mirror 330 in this embodiment. Figure 12 From Figure 11 A schematic cross-sectional view of the polygon mirror 330 viewed from the arrow B direction of . will use Figure 11 and 12 The polygon mirror 330 in this embodiment is described. In addition, the sa...

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Abstract

The invention relates to a polygonal mirror and a manufacturing method, a deflector, an optical scanning apparatus, an image forming apparatus. The polygonal mirror includes a reflecting surface capable of reflecting laser light emitted from a light source, a base material made of a metal material, and a molded member molded outside the base material and including a first surface and a second surface which crosses the first surface and which corresponds to the reflecting surface.

Description

technical field [0001] The present invention relates to a polygon mirror for scanning an image bearing member with laser light, a deflector including the polygon mirror, an optical scanning device including the deflector, an imaging device including the optical scanning device, and a manufacturing method of the polygon mirror . Background technique [0002] In a conventional optical scanning device used in an image forming device such as a laser printer (as disclosed in Japanese Patent Application Laid-Open (JP-A) 2005172930), laser light emitted from a light source is optically modulated according to an image signal, and the modulated The laser light is deflected by a deflector including, for example, a polygon mirror, and then the photosensitive drum is scanned with the deflected laser light to form an image on the photosensitive drum through a scanning lens such as an fθ lens, thereby forming an electrostatic latent image on the photosensitive drum. Then, the electrostat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/09G02B26/12G03G15/04B29C45/14B29C45/26
CPCB29C45/14B29C45/26G02B5/09G02B26/12G03G15/04036B29D11/00596B29L2011/0058G02B1/04G02B5/085B29C45/2602
Inventor 太田充广高田淳史田中嘉彦田中孝敏山谷文彦松下直树片山皓贵
Owner CANON KK