Mita Industrial Co., Ltd.

Kyocera Mita Corporation

Masami Taniguchi

Susumu Komaki

Yoshihiko Tanaka

Syuji Fujisawa

Hiroshi Ishida

Junichi Hirobe

Hideki Takeda

Junichi Takamatsu

Atsushi Kano

Shingo Sakato

Shuji Fujisawa

Kazuo Johroku

Makoto Okado

Kiyoshige Kameda

Tadashi Kobata

Toshikazu Tomi

Toner cartridge

Wall structure for a tuner cartridge

This invention relates to an image forming apparatus of electro-photography type in which a light image obtained by reflected light from an original document image by projecting light onto the original document image is changed in size at a set magnification rate to form an electrostatic latent image on a photosensitive member, and the electrostatic latent image is developed into a toner image. The image forming apparatus includes: a magnification rate setting unit with a lens and a reflective mirror for determining a magnification rate of the light image; lens moving means for moving the lens between a first position and a second position; reflective mirror moving means for moving the reflective mirror between a third position and a fourth position along the optical path; and movement controlling means for controlling the lens moving means to move the lens and the reflective mirror between the first position and the second position and between the third position and the fourth position by respective predetermined distances upon receiving a command signal.

Image forming apparatus provided with a movement control mechanism for

Developer-supplying unit for an image forming apparatus

The present invention relates to a corona discharger displacing mechanism and a grid electrode positioning mechanism which are used for a unit of an image forming section in an image forming apparatus. The displacing mechanism causes a corona discharger to advance or retreat in synchronism with the inserting or extracting operation of the unit. On the other hand, the positioning mechanism stretches a grid electrode in co-operation with the unit.

Corona discharger displacing mechanism and grid electrode positioning

Developing unit for forming an image

Photoconductor unit for forming an image

A discharge system for discharging copy sheets out of a copying machine body comprises a transport unit and a discharge unit. The transport unit transports copy sheets in a transverse direction of the machine. The interiorly-incorporated discharge unit acquires a sheet transported from the transport unit and actively transports the acquired sheet along a fore-and-aft direction of the apparatus toward the user-directed side of the copying machine in order to discharge it exteriorly. The overall occupied space of the copy machine is thus reduced; additionally, accuracy of copy sheet discharge is ensured.

Image forming apparatus and its discharge system

A corona discharge device including a shield case having a bottom wall and a pair of walls extending from both side ends of the bottom wall and a wire stretched within the shield case. A guide member for preventing entry of a sheet material into the shield case has a guide arm portion extending across an opening of the shield case, and the free end portion of the guide arm portion is kept in elastic press contact with the wall of the shield case. Furthermore, the guide member for preventing entry of the sheet material into the shield case has one end portion fixed to one wall of the shield case and its other end portion detachably anchored selectively at one wall and the other wall of the shield case.

Corona discharge device

A device for use with an image forming apparatus having a photosensitive drum and a developing device and a cleaning device disposed around the photosensitive drum for conducting developer recovered in the cleaning device to the developing device includes a circulating passage provided between the developing device and the cleaning device so as to communicate the developing device with the cleaning device. A discharging device discharges developer recovered in the cleaning device to the circulating passage, and a conveyor is disposed in the circulating passage to convey developer in the circulating passage to the developing device, the conveyor and the circulating passage being constructed to provide a space between the conveyor and the circulating passage such that a portion of the developer is allowed to be temporarily retained in such space. A supply device is provided for supplying developer conveyed by the developer into the developing device.

Device for circulating developer

A paper sheet material conveying device has a feed roller assembly and a temporary hampering assembly disposed downstream thereof. The sheet material conveying device includes a driven shaft to be rotated by a driving source and a driven roller mounted thereon. The driven roller has an inside diameter larger than the outside diameter of the driven shaft and is mounted rotatably on the driven shaft. When the forward movement of the sheet material fed by the feed roller assembly is hampered by the temporary hampering assembly, the rotation of the driven roller is stopped by the resistance of the sheet material exerted on the driven roller in spite of the rotation of the driven shaft.

Sheet material conveying device

Growing community of inventors

Osaka, Japan

Masami Taniguchi