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AssigneeMita Industrial Co., Ltd.
InventorHideki Kita
Estimating the term…
An image-forming machine includes a photosensitive drum on which a toner image is to be formed on the peripheral surface thereof, a transfer drum onto which is removably fitted an image-forming sheet member onto which said toner image will be transferred, and a cleaning device that removes the toner remaining on the peripheral surface of the photosensitive drum after the transfer of image has been finished. The image-forming area on the peripheral surface of the photosensitive drum is defined inside the portions that correspond to both side edges of the transfer sheet member of the transfer drum. A cleaning blade in the cleaning device is present continuously over the image-forming area but does not extend up to portions that correspond to both side edges of the transfer sheet. The photosensitive drum includes a pair of flange members and a photosensitive drum body mounted to the flange members. A drive coupling member made of a resilient metal is secured to one of the flange members, and has a coupling protrusion that bites into the inner surface of the photosensitive drum body.
A photosensitive drum body-mounting mechanism in an image-forming machine in which a cylindrical photosensitive drum body having a photosensitive material disposed on the peripheral surface thereof is detachably mounted to flange members that rotate in a predetermined direction so as to be rotated together with said flange members, wherein a drive coupling member made of a resilient metal and having a coupling protrusion is secured to said flange members, said coupling protrusion of said drive coupling member having an acute angle relative to an inner peripheral surface of said photosensitive drum body on the upstream side as viewed in the direction of rotation of said flange members and a tip of said coupling protrusion is pressed onto said inner peripheral surface of said photoconductive drum body, so that when said flange members are rotated, said tip of said coupling protrusion bites into said inner peripheral surface of said photosensitive drum body causing said photosensitive drum body and said flange members to rotate together.
Dependencies are inferred from the claim text.