Minolta Company, Ltd.

Takeshi Satake

Takeshi Minami

Toru Kasamatsu

Satoru Kawata

Hirokazu Matsuo

Naoyoshi Kinoshita

Hiroshi Hiraguchi

Yoshikazu Watanabe

Seiichi Munemori

Takatoshi Hamada

Naoki Ohashi

Masaaki Goto

A multi-beam image recording apparatus changes a diameter of a laser beam using a beam diameter changing board, an order in which the line data is to be read from the memory unit, a rotational speed of a polygon mirror, and a clock frequency employed when the image data is read in units of pixels, in accordance with the specified resolution. Accordingly, the multi-beam image recording apparatus can switch between the resolutions without changing a distance between the centers of two laser beams emitted from an optical system. The resolution switching can be achieved with high accuracy at low costs.

Multi-beam image recording apparatus

An image forming apparatus includes a communications line for connecting the image forming apparatus to other image forming apparatuses to create a system of a plurality of image forming apparatuses; a device for setting a connected printing mode to allocate and print jobs to be printed by the plurality of image forming apparatuses; a device for executing printing in the connected printing mode by the plurality of image forming apparatuses; and a device for releasing the use of the image forming apparatus under the connected printing mode when the image forming apparatus receives a print command while a printing operation is being executed by the plurality of image forming apparatuses under the connected printing mode.

Image forming system including means for inhibiting or releasing one of

An image forming apparatus is composed of an image holding component for holding an image, a first image forming device and a second image forming device for respectively forming a first image and a second image on a surface of the image holding component, a switching unit for switching a mode between a first mode and a second mode, the first mode being where the first image forming device and the second image forming device come into contact with the image holding component and the second mode being where the second image forming device and the image holding component do not come into contact and the first image forming device comes into contact with the image holding component, a detecting unit for detecting information concerning an image formed on the image holding component, and a modifying unit for modifying at least one of an image forming condition for the first image and an image forming condition for the second image in accordance with the information detected by the detecting unit. With this structure, the current mode is switched as necessary, so that needless wear and tear on the second image forming device is prevented. Also, the modifying unit modifies the image forming conditions as necessary, so that deterioration on a reproduced image caused by the mode switching is prevented. As a result, a high-quality image can be obtained.

Image forming apparatus which modifies image forming condition depending

An image forming apparatus operates in a color mode using a plurality of image holding components and in a monochrome mode using one of the plurality of image holding components to perform the image formation. The mode is switched between the color mode and the monochrome mode in accordance with information, such as the number of monochrome images having been successively formed, the number of monochrome images to be successively formed, a time period having been taken for the monochrome image formation, productivity or life priority specified the user, and a standby state of the image forming apparatus in the color mode or the monochrome mode, with a distance between the recording sheets to be transported being controlled according to predetermined conditions.

Image forming apparatus operating in color mode and monochrome mode

Growing community of inventors

Sakai, Japan

Takeshi Satake