Sanyo Electric Co., Ltd.

Kenhachi Shiraki

Shinichi Kikkawa

Yoshifumi Miyazaki

Torahiko Nonoue

Etsuzo Moriki

Masayuki Tanaka

Fumihiko Hamada

Kiyoshi Sakamoto

Yoshihiro Tanimoto

Yutaka Deguchi

Kunio Tsuboi

Fumizo Kimoto

Yoshitaka Shibata

Taketomo Mizutani

Takaharu Izawa

Yujiro Koumoto

Michihiko Hasegawa

Rikuzou Kouzuki

Daiwa Iinuma

Takahal Izawa

An electrophotographic copying machine comprises a mouse which is connected to a main unit by a connecting cord and is for inputting positional information for editing. The mouse has a roller whose peripheral side surface is exposed from a case. When the mouse is moved while the peripheral side surface of the roller is brought in contact with a surface of an original, pulses are generated from the mouse attending on rotation of the roller, and these pulses are counted by a counter of a microcomputer. The counted value of the counter is utilized as positional data for editing by the microcomputer. Based on that positional data, the microcomputer partially and selectively lightens of a plurality of LED elements constituting a LED array. Therefore, an electrostatic latent image on a photoreceptor-drum is partially erased so that 'masking or 'trimming' of an image in an area defined by the positional data is executed. When the timing of transfer of a toner image is controlled by the microcomputer based on the positional data, 'moving' of the image is performed.

Electrophotographic copying machine having an editorial function

An apparatus for scanning an original includes a light source which is supported by a carriage movable in a scanning direction. A shield member is formed on the carriage. A first photointerrupter is provided at a home position of the carriage and a second photointerrupter is provided to a moving direction therefrom. When a forward going of the carriage is started from the home position and continued by a distance corresponding to the size of paper and/or the copy magnification, the light source is turned off and the carriage starts a returning movement. During the returning movement, the carriage travels further as far as the prescribed distance after the second photointerrupter being shielded by the shield member, thereafter a braking is applied on the carriage. The prescribed distance may be changed in accordance with the paper size or the copy magnification, accordingly the larger the returning speed of the carriage, the shorter the prescribed distance described above and longer the braking distance, which will be reduced with the increased returning speed.

Apparatus for scanning an original

An electrostatic recording apparatus such as an electrophotographic copying machine includes a mobile light source being able to move reciprocatively and exposing an original copy at its forward going motion. Reflected light from the original copy exposed by the light source produces an image on a photosensitive drum through an image-forming lens, and an electrostatic latent image is formed on the photosensitive drum. This electrostatic latent image is developed with a toner to form a visible image, and the toner image is transferred onto a paper fed from a paper feeding part. Papers of different sizes can be fed from the paper feeding part, and in response to this paper size, data such as moving speed and moving distance of the light source are read from the ROM, being given to a motor controller. As a function of the paper size, different returning speed data are set in advance, and accordingly, the light source can return at a speed responding to the paper size. Furthermore, since the light source forms an image of different magnification from that of the original copy, it is moved at a different speed. When a different magnification is set, a moving speed data of the light source responding to its magnification is read from the ROM. Accordingly, the moving speed of the light source can be varied also in response to the magnification.

Electrostatic recording apparatus

Electrostatic copying machine having removable paper path

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Hyogo, Japan

Kenhachi Shiraki