IMAGE FORMING APPARATUS, CONTROL METHOD, AND CONTROL PROGRAM

PROBLEM TO BE SOLVED: To provide an image forming apparatus that can suppress wear of photoreceptors while suppressing a reduction in printing quality.SOLUTION: An image forming apparatus having a printing function comprises: photoreceptors; charging rollers that are in contact with the photorecepto...

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Main Authors KITAMURA KAZUYA, MANDAI YUSUKE, NAKAYAMA KANJI, KIMURA MASATO
Format Patent
LanguageEnglish
Japanese
Published 17.08.2017
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Abstract PROBLEM TO BE SOLVED: To provide an image forming apparatus that can suppress wear of photoreceptors while suppressing a reduction in printing quality.SOLUTION: An image forming apparatus having a printing function comprises: photoreceptors; charging rollers that are in contact with the photoreceptors for charging the photoreceptors; exposure devices for forming electrostatic latent images according to input images on the photoreceptors charged by the charging rollers; developing devices for developing the electrostatic latent images formed on the photoreceptors; and a control device for controlling rotation of the photoreceptors. The control device executes, in the input images, a step of detecting an intermediate density part in which a pixel value falls within a predetermined range (S12), and a step of reducing the number of rotations of the photoreceptors before the start of printing as the area of the detected intermediate density part is smaller (S20).SELECTED DRAWING: Figure 4 【課題】印刷品質の低下を抑えつつ感光体の摩耗を抑制することが可能な画像形成装置を提供する。【解決手段】印刷機能を有する画像形成装置は、感光体と、感光体に接触しており、感光体を帯電するための帯電ローラーと、帯電ローラーによって帯電された感光体上に入力画像に応じた静電潜像を形成するための露光装置と、感光体上に形成された静電潜像を現像するための現像装置と、感光体の回転を制御するための制御装置とを備える。制御装置は、入力画像において、画素値が所定範囲内に属する中間濃度部分を検知するステップ(S12)と、検知された中間濃度部分の面積が少ないほど印刷開始前における感光体の回転数を少なくするステップ(S20)とを実行する。【選択図】図4
AbstractList PROBLEM TO BE SOLVED: To provide an image forming apparatus that can suppress wear of photoreceptors while suppressing a reduction in printing quality.SOLUTION: An image forming apparatus having a printing function comprises: photoreceptors; charging rollers that are in contact with the photoreceptors for charging the photoreceptors; exposure devices for forming electrostatic latent images according to input images on the photoreceptors charged by the charging rollers; developing devices for developing the electrostatic latent images formed on the photoreceptors; and a control device for controlling rotation of the photoreceptors. The control device executes, in the input images, a step of detecting an intermediate density part in which a pixel value falls within a predetermined range (S12), and a step of reducing the number of rotations of the photoreceptors before the start of printing as the area of the detected intermediate density part is smaller (S20).SELECTED DRAWING: Figure 4 【課題】印刷品質の低下を抑えつつ感光体の摩耗を抑制することが可能な画像形成装置を提供する。【解決手段】印刷機能を有する画像形成装置は、感光体と、感光体に接触しており、感光体を帯電するための帯電ローラーと、帯電ローラーによって帯電された感光体上に入力画像に応じた静電潜像を形成するための露光装置と、感光体上に形成された静電潜像を現像するための現像装置と、感光体の回転を制御するための制御装置とを備える。制御装置は、入力画像において、画素値が所定範囲内に属する中間濃度部分を検知するステップ(S12)と、検知された中間濃度部分の面積が少ないほど印刷開始前における感光体の回転数を少なくするステップ(S20)とを実行する。【選択図】図4
Author KITAMURA KAZUYA
MANDAI YUSUKE
NAKAYAMA KANJI
KIMURA MASATO
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Snippet PROBLEM TO BE SOLVED: To provide an image forming apparatus that can suppress wear of photoreceptors while suppressing a reduction in printing...
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SubjectTerms CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
Title IMAGE FORMING APPARATUS, CONTROL METHOD, AND CONTROL PROGRAM
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