IMAGE FORMATION APPARATUS AND IMAGE FORMATION METHOD

PROBLEM TO BE SOLVED: To provide an image formation apparatus that suppresses a ghost from being generated.SOLUTION: An image formation apparatus 200 comprises: an electrophotographic photoreceptor 207; charging means 208 of charging a surface of the electrophotographic photoreceptor; electrostatic latent image forming means 210 of forming an electrostatic latent image by exposing the surface of the electrophotographic photoreceptor having been charged; developing means 211 of forming a toner image by developing the electrostatic latent image formed on the surface of the electrophotographic photoreceptor with a developer including toner; and transfer means 212a, 212b of transferring the toner image to the surface of a recording medium. An expression (1) is satisfied, where ΔQ(μC/m) is an amount of electric charge, accumulated in a photosensitive layer with light irradiating the surface of the electrophotographic photoreceptor, per unit area, VH(V) is a charging potential after the surface of the electrophotographic photoreceptor is charged by the charging means, and VL(V) is an exposure potential at a place where the surface of the electrophotographic photoreceptor is charged by the electrostatic latent image forming means.SELECTED DRAWING: Figure 1 【課題】ゴーストの発生が抑制される画像形成装置を提供する。【解決手段】電子写真感光体２０７と、電子写真感光体の表面を帯電する帯電手段２０８と、帯電した電子写真感光体の表面を露光して静電潜像を形成する静電潜像形成手段２１０と、トナーを含む現像剤により、電子写真感光体の表面に形成された静電潜像を現像してトナー像を形成する現像手段２１１と、トナー像を記録媒体の表面に転写する転写手段２１２ａ，２１２ｂと、を備え、電子写真感光体の表面に照射される光により単位面積あたりの感光層内に蓄積する電荷量ΔＱ（μＣ／ｍ２）、帯電手段により電子写真感光体の表面を帯電した後の帯電電位ＶＨ（Ｖ）、及び静電潜像形成手段により電子写真感光体の表面を露光した箇所の露光電位ＶＬ（Ｖ）が、下記式（１）の関係を満たす画像形成装置２００。【選択図】図１