Canon Kabushiki Kaisha

Shun Motohashi

Tadao Sugiura

Takashi Yokoya

Noriaki Matsui

Ryou Sakaguchi

Kiyoharu Kakomura

Masashi Yokoyama

Toshifumi Oikawa

Takuya Machida

Naoko Mima

An image forming system includes an image former configured to form an image on a sheet, an inspector configured to inspect the sheet on which the image has been formed by the image former and determine whether or not the image of the sheet has an abnormality, and a controller configured to, in a case where the inspector determines that the image of the sheet has the abnormality of positional deviation, perform an adjustment operation in which an image formation position by the image former is adjusted.

Image forming system that executes recovery process

An image forming system includes a controller to discharge to a first discharger a sheet determined not to have a product defect and discharge to a second discharger a sheet determined to have a product defect. The controller is configured to, in a case where it is determined that a first sheet on which an image has been formed has the product defect, execute an adjustment operation of adjusting image forming conditions for an image former, and execute a recovery process in which the image formed on the first sheet is formed on a second sheet by the image former with the product defect removed based on completion of the adjustment operation.

An image forming apparatus includes a mechanism configured to bring an intermediate transfer member into a first state contacting first and second drums and a second state separating from the first drum and contacting the second drum. The image forming apparatus is operable in a first mode of using the first and second drums in the first state, a second mode of using only the second drum in the second state, and a third mode of using only the second drum in the first state. If an image forming retry involving cleaning a transfer portion due to a recording medium conveyance delay in the third mode is to be performed, a controller changes over the third mode to the second mode without stopping rotation of the second drum to perform image formation on a recording medium fed by restart of a feeding operation.

Image forming apparatus

An image forming apparatus includes a trailing edge regulation guide configured to regulate a trailing edge position of a sheet stored in a sheet storage unit, a detection unit configured to detect a position of the trailing edge regulation guide, an input unit configured to input a sheet size to be set for the sheet storage unit, and a control unit. In the sheet storage unit, an attachment is attachable to the trailing edge regulation guide. The control unit controls display a warning screen in a case where a length in a feeding direction in the sheet size input by the input unit is longer than a predetermined length, whereas the control unit does not to display the warning screen according to the position of the trailing edge regulation guide in a case where the length in the feeding direction is shorter than the predetermined length.

An image forming apparatus includes an obtaining unit configured to obtain information related to a resolution of an image to be formed, an image processing unit configured to execute image processing corresponding to the information on image data, an image forming unit configured to form an image based on the image data on which the image processing is executed by the image processing unit, an intermediate transfer member to which a measuring image formed by the image forming unit is transferred, a measurement unit configured to measure the measuring image transferred to the intermediate transfer member, a storage unit configured to store measuring image data, and a controller configured to control the image processing unit to execute first image processing on the measuring image data, control the image forming unit to form the measuring image, control the measurement unit to measure the measuring image, and control an image forming condition.

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Misato, Japan

Shun Motohashi