| 摘要 |
PURPOSE:To easily manage the lifes of both of a line head and a photosensitive body. CONSTITUTION:In an electrophotographic device 10 having a photosensitive body 20 and a line head unit 30, which can be attached/detached to/from a main body, nonvolatile memories 26 and 36 are attached to respective units 10 and 20, line head life detecting means 11 and 12, photosensitive body life detecting means 11, 12, and 42SN, writing control means 11 and 12, are provided, and a constitution that both of line head life data Dh and photosensitive body life date Dd are automatically written in respective memories 26 and 36, is adapted. |
