Canon Kabushiki Kaisha

Takahide Takeishi

Minoru Teshigawara

Yoshiyuki Nakagawa

Yoshiaki Murayama

Takatoshi Nakano

Atsushi Sakamoto

Yutaka Kano

Susumu Hirosawa

Masashi Hayashi

Yoshihiro Hamada

Kentaro Muro

Ayako Iwasaki

An image forming apparatuscapable of performing printing with a high image quality, and a control method of the image forming apparatusare provided. For this purpose, a threshold value Dt is preliminarily set that allows printing without occurrence of blur, for each of preliminarily set monitoring areas A. In the case where a print duty for each of the monitoring areas A has exceeded the threshold value Dt, an ejection frequency of ink and conveying speed of a print medium are reduced in association therebetween.

Image forming apparatus and control method of image forming apparatus

An ink jet recording apparatus includes a recording head having a nozzle arrangement region in which a plurality of nozzles for discharging ink is arranged, and a cleaning unit configured to perform cleaning operation on the recording head. A control unit is configured to control the cleaning unit and a change operation for changing relative position relation between a region where the record medium passes and the nozzle arrangement region. The control unit acquires end passage positions in a first recording operation before the change operation is performed, and a passage region in a second recording operation after the change operation is performed. The control unit performs control for executing the cleaning operation in a case where the end passage position is included in the passage region.

Ink jet recording apparatus and cleaning method thereof

A method for printing on a continuous sheet with an inkjet head includes printing a plurality of images in sequence and performing plural kinds of maintenance operations by using intermediate areas located between one of the images and next one of the images in accordance with a schedule, and setting the schedule such that a first maintenance operation included in the plural kinds of maintenance operations and a second maintenance operation which is performed with frequency different from that of the first maintenance operation are not performed at the same intermediate area.

Method and apparatus for printing

The present invention provides an inkjet recording apparatus recording image data by using recording heads that can be separately attached to and/or detached from the inkjet recording apparatus, wherein the attachment and/or detachment of each of the recording heads is detected, and only a pattern used to adjust the displacement of the landing location of the attached and/or detached recording head alone and a pattern used to adjust the displacement between the landing locations of recording heads including the attached and/or detached recording head are recorded.

Inkjet recording apparatus and landing-location adjustment method

Growing community of inventors

Kawasaki, Japan

Takahide Takeishi