IMAGE FORMATION APPARATUS, LIGHT EMISSION CONTROL METHOD AND PROGRAM
To provide an image formation apparatus, a light emission control method and a program which can reduce the generation of an irregular pitch by correcting the inclination of each light source at each main-scanning position.SOLUTION: An image formation apparatus comprises: an image formation unit 10...
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Sprache: | eng ; jpn |
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Zusammenfassung: | To provide an image formation apparatus, a light emission control method and a program which can reduce the generation of an irregular pitch by correcting the inclination of each light source at each main-scanning position.SOLUTION: An image formation apparatus comprises: an image formation unit 10 which forms an image by scanning in a main-scanning direction a plurality of light beams emitted from a plurality of light sources constituting a light source unit on an image carrier (photoreceptor 200); an acquisition unit (camera 40) which acquires density information of the image formed by the image formation unit 10; a calculation unit (control unit 20) which calculates a main scanning interval at a plurality of main-scanning positions of each light source on the basis of the density information acquired by the acquisition unit; a modulation unit (control unit 20) which applies frequency modulation to each light source on the basis of the main scanning interval calculated by the calculation unit; and a light emission control unit (control unit 20) which controls the light emitting timing of each light source on the basis of the modulation result by the modulation unit.SELECTED DRAWING: Figure 2
【課題】各主走査位置における光源ごとの傾きを補正して、ピッチムラの発生を低減させることが可能な画像形成装置、発光制御方法及びプログラムを提供する。【解決手段】光源部を構成する複数の光源から発せられた複数の光線を像担持体(感光体200)において主走査方向に走査して、画像を形成する画像形成部10と、画像形成部10により形成された画像の濃度情報を取得する取得部(カメラ40)と、取得部により取得された濃度情報に基づいて、各光源の複数の主走査位置における主走査間隔を算出する算出部(制御部20)と、算出部により算出された主走査間隔に基づいて、各光源に周波数変調をかける変調部(制御部20)と、変調部による変調結果に基づいて各光源の発光タイミングを制御する発光制御部(制御部20)と、を備える。【選択図】図2 |
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