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Optical unit for use in image forming apparatus

An optical unit and image technology, which is applied to the equipment, optical elements, optical elements, etc. of the electrical recording process using charge patterns, and can solve the problems of uneven developer concentration and image density.

Inactive Publication Date: 2008-01-16
KK TOSHIBA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, it has been confirmed that in the output process requiring image output having a resolution equal to or greater than, for example, 1200 dpi (dots per inch), fluctuations in the developer transferred to the transfer medium occur due to fluctuations in the intensity of exposure light. "Inhomogeneity in density (unevenness in image density)" in which fluctuations are due to processing traces left on mold parts

Method used

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  • Optical unit for use in image forming apparatus
  • Optical unit for use in image forming apparatus
  • Optical unit for use in image forming apparatus

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Embodiment Construction

[0027] Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0028] FIG. 1 shows an example of an image forming apparatus including an optical scanning unit (exposure unit) to which an embodiment of the present invention is applied. In the explanation of the embodiment, an example of the present invention will be explained using a copying apparatus as an example. However, it goes without saying that the present invention is also applicable to any device such as a printer device, a facsimile device, or a workstation device.

[0029] An image forming apparatus (that is, a color copying apparatus) 1 includes: a scanning unit 2 that acquires image information held by a copying target as light and light shadows, and generates an image signal; and an image forming unit 3 whose transfer is developed by a developer The toner image of the toner, that is, the toner is transferred onto a transfer medium, which is a sheet of paper P f...

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Abstract

By using an embodiment of the invention, an image forming apparatus capable of controlling an influence on an image due to machining traces that are left, in manufacturing a molding die used for molding lenses, even by cutting and grinding of the molding die.

Description

technical field [0001] The present invention relates to an optical scanning unit built in an image forming apparatus typified by, for example, an xerographic copier or a laser printer, and more particularly, the present invention relates to an optical scanning unit capable of controlling A fluctuation in the intensity of the exposure used to form the image output from the image data. Background technique [0002] In an image forming apparatus that transfers a developer image to a transfer medium to obtain an image output, a raster system for supplying exposure light in a direction perpendicular to A strip of exposure light is aligned with a transfer pitch of the transfer medium to form an image, wherein the exposure light is used to form an image output based on image data. [0003] When the exposure light is supplied by deflecting the laser beam, lenses which are given different convergence characteristics according to the deflection angle controlled by being subjected to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/12G03G15/04B29C33/38B29D11/00
CPCG02B13/0005
Inventor 栗林廉
Owner KK TOSHIBA