Canon Kabushiki Kaisha

Takahiro Oonuma

Shinya Suzuki

Manabu Jimba

Katsuhide Koga

Hiroki Sato

Mitsuhiro Sugeta

Hirokazu Kodama

Norio Negishi

Koichiro Ino

Kazusa Morimoto

An image forming apparatus includes a conveyance unit configured to convey a sheet, a measurement unit for measuring a feature amount of the sheet conveyed by the conveyance unit, a sheet detection sensor for detecting the sheet conveyed by the conveyance unit, a pressing member movable between a first position separated from the measurement unit and a second position closer to the measurement unit than the first position, a moving unit configured to move the pressing member, an image forming unit configured to form, based on a predetermined image forming condition, an image on the sheet conveyed by the conveyance unit, and a controller, the controller is configured to stop conveyance of the sheet by the conveyance unit in a case where the sheet is detected by the sheet detection sensor.

Image forming apparatus

An information processing apparatus for communicating to and from a database having stored therein information on errors which have occurred in an image forming apparatus, the information processing apparatus includes at least one processor configured to acquire, from the database, information on a certain error and information on a related error which has occurred in past before the certain error, acquire first information related to a cumulative number of printed sheets of the image forming apparatus at a time of occurrence of the certain error, and second information related to a cumulative number of printed sheets of the image forming apparatus at a time of occurrence of the related error, and determine a causal part of a cause of the certain error based on the first information and the second information, and an output unit configured to output the causal part of the cause of the certain error.

Information processing apparatus for determining causal part of cause of error which has occurred in image forming apparatus, and notification method of giving notification of causal part of cause of error which has occurred in image forming apparatus

A color image forming apparatus configured to form a combination toner pattern including a second toner image formed downstream in a conveying direction of an intermediate transfer belt on a first toner image and a third toner image formed upstream in the conveying direction of the intermediate transfer belt on the first toner image so that the second and the third toner images cover at least a portion of the first toner image.

Image forming apparatus for forming a detection toner pattern

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Kashiwa, Japan

Takahiro Oonuma