JPS6146555U

JPS6146555U - Multicolor image forming device

Info

Publication number: JPS6146555U
Application number: JP13062784U
Authority: JP
Inventors: 司安達; 慧新宮領; 秀哉古田; 良博堺; 五男池田; 捷夫酒井
Original assignee: 株式会社リコー
Priority date: 1984-08-30
Filing date: 1984-08-30
Publication date: 1986-03-28

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の実施例の構成を示す断面図、第２図は
露光ランプの配置の変形実施例を示す断面図、第３図は
従来提案された多色画像形成装置の一例ｂ構成を示す断
面区である。１・・・感光体ドラム、４・・・イレーサ、５・・・露
光ランプ、８・・・色分解フィルタ、９・・・カラーイ
メージセンサ、１０〜１３・・・現像器、１８・・・画
像露光スリット中心、２０・・・イレーサ照射位置、２
１・・・原稿露光用照射中心、２２・・・カラーイメー
ジセンサによる原稿読取位置。FIG. 1 is a cross-sectional view showing the configuration of an embodiment of the present invention, FIG. 2 is a cross-sectional view showing a modified example of the arrangement of exposure lamps, and FIG. 3 is an example of configuration b of a multicolor image forming apparatus proposed in the past. This is a cross-sectional area showing. DESCRIPTION OF SYMBOLS 1... Photosensitive drum, 4... Eraser, 5... Exposure lamp, 8... Color separation filter, 9... Color image sensor, 10-13... Developing device, 18... Image exposure slit center, 20...Eraser irradiation position, 2
1... Irradiation center for document exposure, 22... Document reading position by the color image sensor.

Claims

[Scope of utility model registration request]

(1) The original placed on the contact glass is irradiated with an exposure lamp, an image is formed on the photoreceptor through the exposure point system, and slit exposure is performed, and the original image is extended in the width direction of the photoreceptor. The image sensor reads the image sensor, processes the output, and selectively flashes each element of the eraser, which consists of an array of light emitting elements that extends along the width of the photoreceptor, thereby erasing the image forming area of the photoreceptor. In a multicolor image forming device that performs image processing by selectively erasing each unit, the original is placed a certain distance away in the scanning direction from the center of irradiation of the original by an exposure lamp for image exposure. The image sensor is placed at a position where it can receive the reflected light, and the eraser is placed at a position where it can irradiate a position a certain distance away from the center of the image exposure slit on the photoreceptor in the direction of movement of the photoreceptor. 1. A multicolor image forming apparatus characterized by comprising:

(2) Multicolor image formation according to claim 1 of the utility model registration claim, characterized in that the exposure lamp is disposed between the document irradiation center for exposure and the image sensor. Device.