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Optical scanning device and image forming apparatus

An optical scanning device and image technology, which is applied in the field of optical scanning device and image forming device, can solve the problems of inability to adjust, difficult to adjust, etc.

Active Publication Date: 2012-03-28
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Furthermore, in the optical scanning device disclosed in Japanese Patent Application Laid-Open No. 11-174360, two-point adjustment screws are used to adjust the inclination of both ends of the lens. When adjusting one side of the lens and adjusting the opposite side, even if one side is already It cannot be adjusted even if it is adjusted first, and it must be adjusted again. There is a problem that it is not easy to adjust.

Method used

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  • Optical scanning device and image forming apparatus
  • Optical scanning device and image forming apparatus
  • Optical scanning device and image forming apparatus

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Embodiment Construction

[0043] figure 1 It is a cross-sectional view showing a configuration example of an image forming apparatus including the optical scanning device of the present invention. The image forming apparatus 1 is an apparatus that forms multi-color and monochrome images on predetermined paper (recording paper) based on image data transmitted from the outside, and is composed of an apparatus main body 2 and an automatic document processing apparatus 3 .

[0044] The automatic document processing device 3 automatically conveys the document onto the document stage 4 on the upper part of the device main body 2 . In addition, the automatic document processing device 3 is configured to be rotatable in the direction of the arrow M, and the document can be manually placed by opening the upper part of the document table 4 .

[0045] The apparatus main body 2 has the exposure unit 5 mentioned later which corresponds to the optical scanning apparatus of this invention. In addition, the image d...

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Abstract

The inventnion relates to an optical scanning device and an image forming apparatus. In an optical scanning device having a lens within a housing, the attachment of the lens to the housing is facilitated. The occurrence of lens distortion and warpage is prevented when the lens is formed by an injection molding apparatus. The lens is a long lens elongated in the main scanning direction for a photoreceptor and has support ends formed at both ends of outside of the lens effective area in the longitudinal direction, and one of the support ends formed at both the ends has a first projection that projects from a side surface in a thickness direction of the lens. The lens is positioned and equipped in the longitude direction of the lens relative to the housing supporting the lens with the first projection in the optical scanning device.

Description

technical field [0001] The present invention relates to an optical scanning device applied to image forming devices such as copiers, printers, and facsimile machines, and an image forming device having the same. Background technique [0002] In order to obtain a desired image based on image information, an image forming device such as a multifunction machine uses a charging device to charge a photoreceptor, and then scans the photoreceptor with a light beam through an optical scanning device according to the image information to form an electrostatic latent image on the photoreceptor. The optical scanning device of the image forming apparatus includes various lenses such as an imaging lens for focusing light from a light source emitting a light beam onto a photoreceptor, and various mirrors for guiding the light beam to a predetermined path in its housing. An imaging lens constituting such an optical scanning device can be obtained by injection molding a resin material. As ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/04G03G15/01
Inventor 小田步
Owner SHARP KK