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Image forming apparatus, printer driver, and data processing apparatus

Assignee: Ricoh Co Ltd
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Filing: 2003-12-15
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Granted: —
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Expires: 2023-12-15
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Abstract

Abstract Translated from Japanese 【課題】 双方向印刷を行った場合に往路印刷と復路印刷との間で色差が生じて画像品質が低下する。 【解決手段】 双方向色差を抑制しない場合には、入力データをそのまま通常のγ値を用いるγ補正テーブル301の入力値として、双方向色差を抑制しないγ値によるγ補正を行い、双方向色差を抑制する場合には係数K乗算部302によって入力データに係数Kを乗じたものをγ補正テーブル301の入力値として、この入力値に対して双方向色差を抑制しないγ値によるγ補正を行なって出力することで、双方向色差を抑制しないγ値に係数Kを乗じたγ値を用いたのと同様なγ補正を行なって滴付着量を低減する。 【選択図】 図20 PROBLEM TO BE SOLVED: To produce a color difference between forward printing and backward printing when bidirectional printing is performed, and image quality is deteriorated. When bi-directional color difference is not suppressed, input data is used as it is as an input value of a gamma correction table 301 that uses a normal gamma value, and gamma correction is performed using a gamma value that does not suppress bi-directional color difference. In the case of suppressing the color difference, the coefficient K multiplication unit 302 multiplies the input data by the coefficient K as an input value of the γ correction table 301, and the input value is subjected to γ correction by a γ value that does not suppress bidirectional color difference. , The same γ correction as that using a γ value obtained by multiplying the γ value that does not suppress the bi-directional color difference by a coefficient K is performed to reduce the droplet adhesion amount. [Selection] FIG.

Inventors

  • 👤 Masanori Hirano
  • 👤 政徳 平野
  • 👤 Masakazu Yoshida
  • 👤 雅一 吉田
  • 👤 Takashi Kimura
  • 👤 隆 木村
  • 👤 Yoshihisa Ota
  • 👤 善久 太田

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-09 14:51
CPC Classifications
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