Konica Corporation

Yasuhiko Yamaguchi

Takao Kurohata

Kenji Taki

Kiyoshi Kimura

Chiharu Kobayashi

Hiroshi Ishii

Tomohiro Suzuki

Masakazu Fukuchi

Tetsuya Yamamoto

Hiroyuki Maruyama

Masaki Kakutani

Kunio Shijo

Hirohiko Yamazaki

Kazuo Izumi

Kenji Okuyama

Satoru Kashiwada

Yoshimi Mizoguchi

Makoto Takeda

Akihiko Oda

Koichi Kitamoto

Toru Ichiki

Masashi Akamatsu

Kojiro Akutsu

Seiichi Watanabe

Kensaku Ogiwara

An image forming apparatus includes: an image reading device for reading an image of a document to obtain image data; a data communication device connected with a computer for receiving an image data from the computer; a facsimile device connected with a telephone line for receiving an image data through the telephone line; an image memory for storing the image data obtained through the image reading device, the image data obtained through the data communication device, and the image data obtained through the facsimile device; an image memory controller for mediating an access to the image memory in a predetermined priority order for storing and reading the image data among the image reading device, the data communication device, and the facsimile device; and an image forming device for forming the image according to the image data controlled by the image memory controller.

Image forming apparatus

An image forming apparatus includes a sequence memory to store a sequence of an initialization processing to be conducted only at an installation of the apparatus, an adjuster to adjust the apparatus in accordance with the initialization, an apparatus status indicator to indicate whether the apparatus is new or not. The apparatus further includes a controller so that the adjuster adjusts the apparatus on the basis of the status of the indicator. A judging device judges whether to continue or stop the initialization process on the basis of a predetermined state of the apparatus such as whether a process unit is new or old or whether a cover is attached to a photoreceptor or not.

Image forming apparatus with judging device for judging whether to

An image forming apparatus includes a process unit provided detachably attachable to the apparatus; a driving source provided inside the apparatus and outside the process unit; a power transmitter to transmit a driving force from the driving source; a rotary member provided inside the process unit, the rotary member being rotated by the driving force from the driving source transmitted through the power transmitter. The apparatus further includes a detector to detect a state of rotation of the rotary member, and to output a signal corresponding to the state of rotation of the rotary member; and a judging member to judge a rotation abnormality of the rotary member on the basis of the signal output from the detector.

Rotation abnormality detecting device for use in image forming apparatus

An electrophotographic color image forming machine registers which a second color toner image on a first color toner image which has been previously formed on an image carrier to form a color image. The registered images are then transferred onto a recording sheet. The machine includes control apparatus that includes first and second exposure control modulators which respectively control an exposure amount of at least one of the first color toner images and the second color toner image. A smoothing processor controls at least one of a size and a position of at least one of the first and second color toner dot images within each of a plurality of pixels and a discriminator determines whether one of the size and the position of the dot image should be controlled. A hue corrector is provided which adjusts a ratio of the exposure amounts provided by the first and second exposure control modulators to control the first and second exposure control modulators on the basis of a discriminator result of the discriminator.

Image forming apparatus with exposure, size, and position correction for

Growing community of inventors

Hachioji, Japan

Yasuhiko Yamaguchi