| 摘要 |
PURPOSE:To take a view from the outside when necessary and to know the time, position, etc., of a jam extremely easily by operating a estimation display part classified by colors and a counting mechanism associatively with each other, and providing an identifying means for coloring to some part of the counting mechanism. CONSTITUTION:A disk 5 sectioned by colors is arranged at the left end of a counter and a gear 4 which rotates the disk 5 associatively with the rotation of the photosensitive body in a unit and the counting mechanism part 3 are both provided at the right end. The mechanism may use a well known-one. When the gear 4 makes one turn, the gear 3b is rotated by one tooth and an adjacent drum 3b rotates by one tooth by 10 turns; and this operation is continued successively to perform counting. This counter is attached to a unit used for an image forming device, the part of the disk 5 is set in he window of the unit, and an user performs operation over a look at the disk part. |
