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Light scanning apparatus and image forming apparatus

An optical scanning device and light source technology, which is applied in optics, equipment and optical components of an electrical recording process using charge patterns, etc., can solve problems such as deterioration of optical characteristics of the optical scanning device, deformation of housing, etc.

Active Publication Date: 2013-06-05
CANON KK
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  • Abstract
  • Description
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Problems solved by technology

Even though the elastic member can be pressed against the housing without gap, since the elastic member is pressed against the housing from its proximal end to its distal end, the large repulsive force of the elastic member will deform the housing
Deformation of the housing degrades the optical characteristics of the light scanning device

Method used

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  • Light scanning apparatus and image forming apparatus
  • Light scanning apparatus and image forming apparatus
  • Light scanning apparatus and image forming apparatus

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Embodiment Construction

[0024] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] (imaging device)

[0026] Figure 5 is a view showing the imaging device 100 according to the embodiment. The image forming apparatus 100 is described below taking a tandem color laser printer as an example.

[0027] The imaging apparatus 100 includes an imaging section including four imaging units 10 ( 10Y, 10M, 10C, and 10Bk). The image forming unit 10Y forms a yellow toner image. The image forming unit 10M forms a magenta toner image. The image forming unit 10C forms a cyan toner image. The image forming unit 10Bk forms a black toner image.

[0028] The image forming unit 10 includes respective photosensitive drums (image bearing members) 50 ( 50Y, 50M, 50C, and 50Bk) as photosensitive members. Each image forming unit 10 includes a charging roller 12 arranged around a photosensitive drum 50 , a developing device 13 , a primary ...

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PUM

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Abstract

A light scanning apparatus, including: a light source; a light deflector configured to deflect a light beam emitted from the light source to scan a photosensitive member; an optical member configured to guide the light beam the photosensitive member; a housing configured to contain the light source, the light deflector, and the optical member; a cover member configured to be attached to a side wall of the housing so as to keep dust out of the light scanning apparatus; and an elastic member having a first abutment portion which is attached to the cover member and is elastically deformed by abutting the side wall, and a second abutment portion which is elastically deformed to abut the side wall according to elastic deformation of the first abutment portion when the cover member is attached to the housing.

Description

technical field [0001] The present invention relates to an optical scanning device and an imaging apparatus including the optical scanning device. Background technique [0002] The image forming apparatus forms an image on a recording medium using an electrophotographic image forming method. The image forming apparatus is, for example, an electrophotographic copier, an electrophotographic printer (such as a color laser printer, a color LED printer, etc.), an MFP (multifunction printer), a facsimile machine, and a word processor. [0003] The imaging device includes an optical scanning device. The light scanning device deflects the light beam so that the light beam modulated according to image information scans a photosensitive member included in the image forming apparatus. The light beam scans the photosensitive member, thereby forming an electrostatic latent image on the photosensitive member. [0004] Figure 6 is a view showing the optical elements of the optical scan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/12G03G15/04
CPCG02B26/123G03G15/04036G02B26/105G03G15/04045
Inventor 乙黑康明
Owner CANON KK
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