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    • 1. 发明申请
    • DEGRADATION LEVEL ESTIMATING DEVICE AND IMAGE FORMING APPARATUS
    • 降级水平估算装置和图像形成装置
    • US20130011147A1
    • 2013-01-10
    • US13466461
    • 2012-05-08
    • Michio KIMURATakaaki IKEGAMITomoharu ASANO
    • Michio KIMURATakaaki IKEGAMITomoharu ASANO
    • G03G15/00
    • G03G15/553G03G15/5037
    • A degradation level estimating device for estimating degradation level of a photoreceptor of an image forming apparatus performing at least a charging process, an optical image writing process, a developing process, and a transferring process in which a toner image on the photoreceptor is transferred onto a receiver while applying a charge to the photoreceptor. The degradation level estimating device includes a charge dependence detector to detect charge quantity dependence of a charge property of the photoreceptor in the charging process on the quantity of the charge applied to the photoreceptor in the last transferring process by subjecting the photoreceptor to the processes plural times without performing the optical image writing process, followed by the charging process, while changing the quantity of the charge and measuring the charge property of the photoreceptor. The degradation level estimating device estimates the degradation level of the photoreceptor based on the charge quantity dependence.
    • 一种用于估计至少进行充电过程,光学图像写入处理,显影处理和转印过程的图像形成装置的感光体的劣化水平的劣化水平估计装置,其中将感光体上的调色剂图像转印到 接收器,同时向感光体施加电荷。 劣化度估计装置包括:电荷依赖检测器,用于检测充电过程中感光体的电荷特性对最后转印过程中对感光体施加的电荷的量的依赖性,通过使感光体进行多次 而不进行光学图像写入处理,随后进行充电处理,同时改变电荷量并测量感光体的电荷特性。 劣化水平估计装置基于电荷量依赖性估计感光体的劣化水平。