IMAGE FORMATION DEVICE

PROBLEM TO BE SOLVED: To alleviate load of driving means of a charged member while suppressing variations in a charged potential on an image carrier surface at the rotational period of the charged member.SOLUTION: An image formation device such as a copier 1 capable of switching the rotational speed...

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Bibliographic Details
Main Authors IWATANI NAOKI, KUWABARA NOBUO, KUDO TSUNEO
Format Patent
LanguageEnglish
Japanese
Published 15.06.2017
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To alleviate load of driving means of a charged member while suppressing variations in a charged potential on an image carrier surface at the rotational period of the charged member.SOLUTION: An image formation device such as a copier 1 capable of switching the rotational speed of a charged member such as a charged roller 12A during image formation includes rotational speed switching means 222 for switching the rotational speed of the charged member between a first rotational speed with which the linear velocity of the charged member becomes slower than that of an image carrier 11 and a second rotational speed with which the linear velocity of the charged member becomes the same as that of the image carrier.SELECTED DRAWING: Figure 11 【課題】帯電部材の回転周期での像担持体表面の帯電電位の変動を抑えつつ、帯電部材の駆動手段の負荷を軽減することができる。【解決手段】画像形成中に帯電ローラ１２Ａ等の帯電部材の回転速度を切り替え可能とした複写機１等の画像形成装置において、帯電部材の回転速度を、帯電部材の線速が像担持体１１の線速よりも遅くなる第１回転速度と、帯電部材の線速と像担持体の線速とが互いに同じになる第２回転速度との間で切り替える回転速度切替手段２２２を有する。【選択図】図１１
Bibliography:Application Number: JP20150238355