Canon Kabushiki Kaisha

Daisuke Murata

Kaoru Seto

Tatsuya Kobayashi

Hiroshi Mano

Akihiko Takeuchi

Hiroshi Sasame

Masaki Ojima

Takashi Kawana

Masaharu Ohkubo

Hisayoshi Kojima

Akira Ito

Tetsuo Saito

Atsushi Kashihara

Seiji Uchiyama

Haruo Fujii

Hiromichi Yamada

Masao Umezawa

Michio Itoh

Motoi Katoh

Hiroshi Atobe

Nobuhiro Imai

Hideki Tada

An output apparatus capable of receiving multi-level dot information of a first recording dot density, generating multi-level dot information of a second recording dot density, and transmitting the thus-generated second dot information in a visible way. The output apparatus comprises: a receiving device capable of receiving multi-level dot information of a first recording dot density; a generating device capable of generating multi-level interpolation dot information by applying a predetermined calculation to the thus-received multi-level dot information; and a dot density conversion device capable of generating multi-level dot information of a second, higher recording dot density from said interpolation dot information and the received multi-level dot information, whereby high density image data can be generated from low density image data.

Dot image data output apparatus

An output apparatus capable of receiving multi-level dot information of a first recording dot density, generating multi-level dot information of a second recording dot density, and transmitting the thus-generated second dot information in a visible way. The output apparatus comprises: a receiving device capable of receiving multi-level dot information of a first recording dot density; a generating device capable of generating multi-level interpolation dot information by applying a predetermined calculation to the thus-received multi-level dot information; and a dot density conversion device capable of generating multi-level dot information of second higher recording dot density from said interpolation dot information and the received multi-level dot information, whereby high density image data can be generated from low density image data.

Dot image output apparatus

An image forming apparatus usable with a process cartridge for forming an image on a recording material. The process cartridge includes an image bearing member, and at least one developing device for developing a latent image formed on the image bearing member with a developer. Each of said at least one developing devices includes a developer accommodating device for accommodating a respective developer to be used in said at least one developing device. The image forming apparatus includes a mounting device for mounting the process cartridge, an auxiliary developing device exterior to the process cartridge for developing a latent image formed on the image bearing member with a developer, the auxiliary developing device including an auxiliary developer accommodating device for accommodating the developer to be used in the auxiliary developing device, and a detecting device for detecting a respective predetermined level of developer in the auxiliary developer accommodating device and in each of the respective developer accommodating devices of said at least one developing device.

Image forming apparatus having toner depletion detection feature

A recording apparatus for receiving a page description language representing image data to be recorded and for recording an image includes a memory for storing bit image data smaller than a one-page capacity, a recording unit for recording the bit image data stored in the memory, a unit for generating partial bit image data of an area corresponding to the memory on the basis of the input page description language, and a controller for storing the partial bit image data generated by the generating unit in the memory, and for causing the recording unit to repeat recording of the partial bit image data stored in the memory until one page of bit image data has been recorded.

Recording apparatus with reduced memory capacity requirement

An image forming apparatus includes a detachably mountable process cartridge, the process cartridge including an image bearing member and a color developing device actable on the image bearing member, the color developing device containing plural developing units having yellow developer, respectively; detachably mountable developing device actable on the image bearing member in the process cartridge, the detachably mountable developing device containing black developer and being detachably mountable independently of the process cartridge; and a device for forming a latent image on the image bearing member; a transfer device for transferring a developed image from the image bearing member to a recording material.

Image forming apparatus

Growing community of inventors

Yokohama, Japan

Daisuke Murata