OPTICAL PRINT HEAD, IMAGE FORMING APPARATUS AND LIGHT AMOUNT CORRECTION METHOD OF OPTICAL PRINT HEAD

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United States of America Patent

SERIAL NO

15171028

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Abstract

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An optical print head comprises a first light emitting element row which includes first light emitting elements arranged in a row in a first direction; a second light emitting element row which includes second light emitting elements arranged in a row in the first direction a first drive circuit which drives each first light emitting element with identical first current value and drives each first light emitting element at a light emitting time corresponding to each target gradation value; and a second drive circuit, in response to transmittance of a light passing position of the rod lens array, which drives each second light emitting element with identical second current value and drives each second light emitting element at a light emitting time corresponding to each target gradation value, wherein the second current value is different from the first current value.

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Patent Owner(s)

Patent OwnerAddress
KABUSHIKI KAISHA TOSHIBA1-1 SHIBAURA 1-CHOME MINATO-KU TOKYO
TOSHIBA TEC KABUSHIKI KAISHA1-11-1 OSAKI SHINAGAWA-KU TOKYO 141-0032

International Classification(s)

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  • 2016 Application Filing Year
  • G03G Class
  • 2954 Applications Filed
  • 2640 Patents Issued To-Date
  • 89.38 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20162017201820192020202120220255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishikawa, Hiroyuki Mishima, JP 199 1426
Tanimoto, Koji Tagata, JP 148 994

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  • 4 Citation Count
  • G03G Class
  • 15.98 % this patent is cited more than
  • 8 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges25611321354416711122501 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +05010015020025030035040045050055060065070075080085090095010001050110011501200

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