IMAGE FORMING APPARATUS

To provide a technique to suppress density unevenness of a formed image.SOLUTION: An image forming apparatus comprises: means to correct first image data based on correction information to generate second image data; and an exposure head that includes a plurality of light emission elements arranged...

Full description

Saved in:
Bibliographic Details
Main Author FURUTA YASUTOMO
Format Patent
LanguageEnglish
Japanese
Published 05.10.2023
Subjects
CINEMATOGRAPHY
CORRECTION OF TYPOGRAPHICAL ERRORS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LINING MACHINES
MAGNETOGRAPHY
PERFORMING OPERATIONS
PHOTOGRAPHY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
PRINTING
SELECTIVE PRINTING MECHANISMS
STAMPS
TRANSPORTING
TYPEWRITERS
Online AccessGet full text

Cover

More Information
Summary:To provide a technique to suppress density unevenness of a formed image.SOLUTION: An image forming apparatus comprises: means to correct first image data based on correction information to generate second image data; and an exposure head that includes a plurality of light emission elements arranged at different positions in a main scanning direction, and which, on the basis of the second image data, forms an electrostatic latent image on a photoreceptor by repeatedly exposing one line in the main scanning direction of the photoreceptor driven to rotate. The first image data indicates whether each of a plurality of dots constituting an image is an exposed dot exposed by the exposure head or an unexposed dot not exposed by the exposure head, and the correction means, on the basis of the correction information, selects a first altered dot from among a plurality of first dots included in a partial image in the plurality of dots for each of a plurality of partial images obtained by dividing the image, and generates the second image data by altering the first altered dot to the unexposed dot when the first altered dot is an exposed dot.SELECTED DRAWING: Figure 11 【課題】形成される画像の濃度ムラを抑える技術を提供する。【解決手段】画像形成装置は、補正情報に基づき第１画像データを補正して第２画像データを生成する手段と、主走査方向の異なる位置に配置された複数の発光素子を含み、第２画像データに基づき、回転駆動される感光体の主走査方向の１ラインを繰り返し露光することで感光体に静電潜像を形成する露光ヘッドと、を備え、第１画像データは、画像を構成する複数のドットそれぞれについて、露光ヘッドにより露光する露光ドットであるか、露光ヘッドにより露光しない非露光ドットであるかを示し、補正手段は、補正情報に基づき、画像を分割した複数の部分画像それぞれについて、複数のドットの内の部分画像に含まれる複数の第１ドットの中から第１変更ドットを選択し、第１変更ドットが露光ドットである場合、第１変更ドットを非露光ドットに変更することで第２画像データを生成する。【選択図】図１１
Bibliography:Application Number: JP20220048421