IMAGE FORMING DEVICE, AND PROCESS CARTRIDGE

PROBLEM TO BE SOLVED: To provide an image forming device and a process cartridge in which gap forming members installed at two ends of a charging roller in the lengthwise direction and coming into contact with an image carrier hardly wear out.SOLUTION: In an image forming device, a charging roller 1...

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Bibliographic Details
Main Authors IWATANI NAOKI, KUWABARA NOBUO, KUDO TSUNEO
Format Patent
LanguageEnglish
Japanese
Published 28.09.2017
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Summary:PROBLEM TO BE SOLVED: To provide an image forming device and a process cartridge in which gap forming members installed at two ends of a charging roller in the lengthwise direction and coming into contact with an image carrier hardly wear out.SOLUTION: In an image forming device, a charging roller 12a that opposes a photoreceptor drum 11 (image carrier) without contact, rollers 12c (gap forming members) so arranged as to come into contact with the photoreceptor drum 11 at both ends of the charging roller 12a and a lubricant supplier 16 that supplies lubricant to the surface of the photoreceptor drum 11 are provided. And the lubricant supplier 16 is so configured that an abrasive content of the lubricant to be supplied to a first area M corresponding to the part where the rollers 12c come into contact in the photoreceptor drum 11 is smaller than an abrasive content of the lubricant to be supplied to a second area N excluding the first area M.SELECTED DRAWING: Figure 3 【課題】帯電ローラの長手方向両端部に設置されて像担持体に当接するギャップ形成部材が摩耗しにくい、画像形成装置、及び、プロセスカートリッジを提供する。【解決手段】感光体ドラム11(像担持体)に対して非接触で対向する帯電ローラ12aと、帯電ローラ12aの長手方向両端部において感光体ドラム11に当接するように配設されたコロ12c(ギャップ形成部材)と、感光体ドラム11の表面に潤滑剤を供給する潤滑剤供給装置16と、が設けられている。そして、潤滑剤供給装置16は、感光体ドラム11においてコロ12cが当接する部分に相当する第1領域Mに供給する潤滑剤に含有される研磨剤が、第1領域Mを除く第2領域Nに供給する潤滑剤に含有される研磨剤に比べて、その含有率が小さくなるように構成されている。【選択図】図3
Bibliography:Application Number: JP20160058227