Canon Kabushiki Kaisha

Yoshinori Mochida

Masanori Yamada

Yoshinori Ikeda

Shinobu Arimoto

Yukio Nagase

Kazuhisa Kemmochi

Akihiro Usami

Katsuhito Kato

Hajime Suzuki

Atsutomo Yoshizawa

An image forming apparatus includes: a rotatable belt having a seamed portion and a reinforcing member attached to the seamed portion; rollers for supporting and feeding the belt; and an image forming device for forming an image on the belt or on a recording material carried thereby, wherein the reinforcing member is arranged on the belt such that it crosses a direction perpendicular to the direction of rotation of the belt. The seamed portion is parallel to the direction perpendicular to the direction of rotation of the belt. The reinforcing member includes folded portions at both ends of the belt with respect to the direction perpendicular to the direction of rotation, the folded portions being formed by folding over the end portions of the reinforcing member from the obverse to the reverse side of the belt. The end portions of the reinforcing member are arranged such that the end portion on the obverse side of the belt and that on the reverse side thereof are not exactly superimposed one upon the other but out of alignment with respect the direction of rotation of the belt. The apparatus further has a cleaning blade for cleaning the belt, wherein the line in which this cleaning blade is in contact with the belt is parallel to the direction perpendicular to the direction of rotation of the belt, and a plurality of image bearing members, wherein images of plurality of colors are transferred from these image bearing members to the recording material carried by the belt.

Image forming apparatus and belt member

A color image processing apparatus includes arranging means for arranging intervals between dot positions on a scanning line at which dots are formed, and shifting means for shifting the dot positions on the scanning line by a shifting amount. At least one of the intervals and the shifting amount for a first color component are different from an interval and a shifting amount of a second color component. The processing apparatus also includes control means for controlling the arranging means and the shifting means so that n (n.gtoreq.3) adjacent dot positions at which the first color component and the second color component overlap correspond to vertices of a substantially regular polygon having n vertices.

Color image processing apparatus which forms dot images at varying

A color image processing apparatus for sequentially inputting image data which corresponds to each of a plurality of color components in units of pixels of a predetermined quantity, delaying, with respect to a reference phase, at least the first color component or the last color component and sequentially forming image in the units of pixels of a predetermined quantity in accordance with the delay.

Color image processing apparatus which uses different screen angles for

An electrophotographic image forming apparatus having a rotatable, electrophotographically-sensitive drum; a latent image forming device for forming an electrostatic latent image on the sensitive drum; a development device for developing the electrostatic latent image; a transfer drum for transferring a developed image to a transfer medium; a cleaning device for cleaning the sensitive drum after transfer; a driving-force source for driving and rotating the sensitive drum; and a fly-wheel provided as rotary inertial body and fixed to a shaft to which the sensitive drum is fixed.

Electrophotographic image forming apparatus with fly wheel

A multi-color image forming apparatus includes a developing device for developing at a developing station the latent image formed on an image bearing member, the developing device including plural developing units containing different color developers, respectively, which units are selectively movable to the developing station, image transfer device for transferring an image developed by the developing device onto a transfer material, provided with transfer material carrying drum for carrying the transfer material along an endless path in a predetermined direction and for contacting it to the image bearing member for the transfer material to receive the developed image, and a mechanism for moving a selected one of the developing units to the developing station during a period in which L3.gtoreq.L2.gtoreq.L1 is satisfied, where L1 is a length of the transfer material carried on the transfer drum which is measured from the transfer station to a trailing edge of the transfer material in a direction opposite to the predetermined direction, L2 is a length of the image bearing member which is measured from the developing station to the transfer station, and L3 is a length of the transfer material carried on the transfer material carrying member which is measured from the transfer station to a leading edge thereof in the opposite direction.

Growing community of inventors

Yokohama, Japan

Yoshinori Mochida