IMAGE FORMATION APPARATUS

PROBLEM TO BE SOLVED: To provide an image formation apparatus which can accurately determine the service life of an electrification member.SOLUTION: An image formation apparatus includes: a photoreceptor drum; an electrification roller; a display unit which displays information on the service life o...

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1. Verfasser: KINAI KEISUKE
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide an image formation apparatus which can accurately determine the service life of an electrification member.SOLUTION: An image formation apparatus includes: a photoreceptor drum; an electrification roller; a display unit which displays information on the service life of the electrification roller; a cleaning blade which is brought into contact with the photoreceptor drum and removes toner on the photoreceptor drum; a drive torque detection unit which detects the drive torque of the photoreceptor drum; an acquisition unit which acquires the hardness, contact pressure and contact angle of the cleaning blade; and a control unit which determines a toner amount on the photoreceptor drum that slips through the cleaning blade at the image formation on the basis of the hardness, contact pressure and contact angle of the cleaning blade acquired by the acquisition unit and the drive torque of the photoreceptor drum detected by the drive torque detection unit, calculates the service life of the electrification roller on the basis of the determined toner amount and image formation number and causes the display unit to display the service life.SELECTED DRAWING: Figure 8 【課題】帯電部材の寿命を精度良く判定することができる画像形成装置を提供する。【解決手段】画像形成装置において、感光体ドラムと、帯電ローラと、帯電ローラの寿命に関する情報を表示する表示部と、感光体ドラムに当接して感光体ドラム上のトナーを除去するクリーニングブレードと、感光体ドラムの駆動トルクを検知する駆動トルク検知部と、クリーニングブレードの硬度、当接圧、当接角度を取得する制御部と、制御部が取得したクリーニングブレードの硬度、当接圧、当接角度と駆動トルク検知部が検知した感光体ドラムの駆動トルクに基づいて、画像形成時にクリーニングブレードをすり抜ける感光体ドラム上のトナー量を判定し、判定されたトナー量と画像形成枚数に基づいて帯電ローラの寿命を算出して表示部に表示させる制御部と、を有する。【選択図】図8