Canon Kabushiki Kaisha

Toshiyuki Miyake

Takashi Yokoya

Takayuki Fujii

Naoto Watanabe

Shunsuke Nishimura

Yutaka Ando

Manabu Yamauchi

Mitsuhiko Sato

Yushi Oka

Riki Fukuhara

Satoru Yamamoto

Koji Yumoto

Akihiro Kawakita

Yasuo Fukatsu

Katsuya Nakama

Akihiro Arai

Hidenori Matsumoto

Hiromasa Maenishi

Takako Hanada

Akinobu Nishikata

Kuniyasu Kimura

Ichiro Sasaki

Kenichi Hayashi

Hidenori Sunada

Keiko Fujita

Nozomi Kumakura

Yuichiro Oda

Hideki Kushida

Daisaku Kamiya

Yusuke Obuchi

Norifumi Miyake

Tsuyoshi Moriyama

Mitsushige Murata

Atsuteru Oikawa

Kenji Morita

Satoshi Seki

Masahiro Mutsuno

Yasuharu Chiyoda

Akihiko Sakai

Hiroshi Matsumoto

Naohisa Nagata

Keisuke Aizono

Kaori Nishiyama

Naoka Omura

Masahiro Tsujibayashi

Takuma Yasukawa

Kimito Kasahara

Norihiko Kobayashi

Nobuhiro Kikuchi

Yuki Suetani

An image forming system includes a first feeding portion to feed a recording sheet, a second feeding portion to feed an inserting sheet from one of a plurality of supporting portions, and a controller capable of executing a job. In a case of performing a feeding process on a current recording sheet subsequent to a preceding inserting sheet, the controller starts the feeding process of the current recording sheet at a predetermined timing in a state in which sheets of a first amount are supported on the first supporting portion, and starts the feeding process of the current recording sheet at a timing later than the predetermined timing in a state in which sheets of a second amount smaller than the first amount are supported on the first supporting portion.

Image forming system

An image forming system includes a first feeding portion configured to feed a recording sheet, a second feeding portion configured to feed an inserting sheet from one of a plurality of supporting portions, and a controller configured to execute a determination process of determining whether or not there is a supporting portion usable as a new feeding source other than a supporting portion serving as a current feeding source of an inserting sheet. The controller is capable of switching between first control and second control in which a feeding process of a recording sheet is executed respectively in a first mode and a second mode in a case where it has been determined in the determination process that there is no supporting portion usable as the new feeding source.

An information processing apparatus includes sensors for detecting a plurality of types of errors. The information processing apparatus identifies a type of an error detected by one of the sensors, acquires a result of diagnostic processing corresponding to the identified type of the error, and outputs error information indicating the identified type of the error, and diagnostic information about a component corresponding to the result of the diagnostic processing.

Information processing apparatus and control method including a mechanism for identifying a cause of an error in the information processing apparatus

An image forming apparatus includes an image processor performing image processing to image data, an image forming unit forming an image on a sheet based on the image data, and a controller changing an image forming condition of the image forming unit based on user information, in a case where a first measuring image is formed by the image forming unit to generate a first conversion condition for image data conversion in image processing to be performed by an external image processing apparatus, controlling the image forming unit based on the changed image forming condition, and in a case where a second measuring image is formed by the image forming unit to generate a second conversion condition for image data conversion in image processing to be performed by the image processor, controlling the image forming unit based on a default image forming condition.

An image forming apparatus includes a controller configured to control a first image forming unit such that while a plurality of images are being sequentially formed, a first pattern image is formed in a first sheet-to-sheet area between a first black image and a second black image among the plurality of images on a first photosensitive body, and control the second image forming unit such that while the plurality of images is being sequentially formed, a second pattern image are formed in a second sheet-to-sheet area between a first color image and a second color image among the plurality of images on a second photosensitive body. The first sheet-to-sheet area in a case where the first pattern image is formed without the second pattern image being formed is narrower than the first sheet-to-sheet area in a case where the first pattern image and the second pattern image are formed.

Image forming apparatus that discharges developer

A control unit of an image forming device determines a remaining amount threshold value and selects a first mode or a second mode. In the first mode, a sheet feeding unit of the image forming device starts feeding a sheet based on presence/absence of an insertion sheet that is to be inserted by an inserter device immediately prior to a sheet fed from the sheet feeding unit. In the second mode, the sheet feeding unit starts feeding a sheet regardless of presence/absence of an insertion sheet that is to be inserted by the inserter device immediately prior to a sheet fed from the sheet feeding unit.

Image forming device that selects feeding mode according to type of insertion sheet

An image forming apparatus that is capable of reducing influence of a failure on execution of a print job even if a post-processing apparatus that has a sheet stacking unit breaks down. Post-processing apparatuses are connected at a downstream side of an image forming apparatus in a sheet conveyance direction and apply post-processes to the sheet discharged from the image forming apparatus. A specifying unit specifies an available downstream-most apparatus from among the post-processing apparatuses. A setting unit can set a forced discharge mode in which a sheet is discharged to the downstream-most apparatus when the downstream-most apparatus is not provided with a sheet stacking unit. When the forced discharge mode is set, apparatuses at an upstream side of the downstream-most apparatus are controlled so as to discharge a sheet to the downstream-most apparatus and the downstream-most apparatus is controlled so as to discharge the sheet outside the apparatus.

Image forming apparatus to which post-processing apparatus can be connected, image forming system, control method therefor, and storage medium storing control program therefor

An image forming system includes a first feeding portion configured to feed a recording sheet, a second feeding portion configured to feed an inserting sheet from one of a plurality of supporting portions, and a controller capable of executing a feed-before-detection mode in which a feeding process of a current recording sheet is started before a detection portion detects whether or not a last preceding inserting sheet is present on a supporting portion selected as a feeding source of an inserting sheet from among the plurality of supporting portions. The controller is configured to start the feeding process of the current recording sheet in the feed-before-detection mode and cause the second supporting portion to feed the last preceding inserting sheet.

An image forming apparatus includes a storage unit to store recording sheets, an image forming unit, an insertion unit, including an interleaving sheet tray on which an interleaving sheet is to be stacked, and to insert the interleaving sheet fed from the interleaving sheet tray between recording sheets conveyed from the image forming unit. The control unit selects between a first mode and a second mode to execute based on a detected remaining amount of recording sheets in the storage unit. The first mode is a mode for feeding the interleaving sheet, which is to be inserted, from the interleaving sheet tray regardless of whether a presence of the recording sheet in the storage unit is detected. The second mode is a mode for feeding the interleaving sheet from the interleaving sheet tray based on that presence of the recording sheet in the storage unit is detected.

Image forming apparatus

An image forming apparatus configured to change an interleaf control mode from a not confirmed sheet-feeding mode to a sheet-presence confirmed sheet-feeding mode when a remaining amount of recording sheets is less than a first threshold, wherein the image forming apparatus has a first mode of changing a feeding origin of a recording sheet, according to detection of absence of a recording sheet in a storage unit by a sheet presence/absence detection unit during execution of an image forming job, and a second mode of changing a feeding origin of a recording sheet, according to detection of a recording-sheet remaining amount of the storage unit less than a second threshold during execution of an image forming job, and wherein the second threshold is larger than the first threshold for changing an interleaf control mode.

An image forming apparatus comprises a first conveyance unit, an image forming unit, a second conveyance unit, a stacking unit, and a control unit. The control unit controls, in a case where a sheet stacking condition of the stacking unit does not satisfy a predetermined stacking condition, the second conveyance unit to convey the sheet at a second conveyance speed that is faster than the first conveyance speed. The control unit controls, in a case where the sheet stacking condition of the stacking unit satisfies the predetermined stacking condition, the second conveyance unit to convey the sheet at a third conveyance speed that is slower than the second conveyance speed.

Image forming apparatus for suppressing discharged paper adhesion

An image forming apparatus includes a mounting portion that detachably mounts either one of a fixing portion and another fixing portion. Each fixing portion includes a first rotatable member and a second rotatable member that, together, form a nip for fixing a toner image on a sheet, and a memory. A rubbing rotatable member executes a rubbing process of rubbing a surface of the first rotatable member, and a moving mechanism moves the rubbing rotatable member between a rubbing position, in which the rubbing rotatable member is in contact with the first rotatable member, and a stand-by position, in which the rubbing rotatable member is separated from the first rotatable member. In addition, a controller stores information corresponding to an execution frequency of the rubbing process designated by an operator through an operating panel, in the memory of the fixing portion that has been mounted in the mounting portion.

Image forming apparatus that controls an execution frequency of a rubbing treatment of a fixing device

The image forming system comprises an accessory device and an image forming apparatus, the accessory device for storing device identification information for identifying its own device, and the image forming apparatus to which the accessory device is connected. The image forming apparatus stores the device identification information of the accessory device included in the image forming system. Further, the image forming apparatus receives a participation notification which requires participating in the image forming system from a new accessory device including the device identification information. If the device identification information included in the received participation notification is not stored, the image forming apparatus stores the information. If already stored, the image forming apparatus discards the participation notification.

Image forming system and method for identifying accessory device and image forming apparatus

An image forming apparatus includes a fixing unit configured to fix a toner image to a sheet; a sheet moving motor configured to move the sheet in a width direction orthogonal to a conveyance direction of the sheet; and a controller configured to determine a movement amount of the sheet to be moved by the sheet moving motor for each sheet, wherein the controller sets a first movement amount for a first sheet when an image is formed on a first side of the first sheet, the controller sets a second movement amount for a second sheet when an image is formed on a first side of the second sheet, and controls the sheet moving motor such that the first sheet is moved in the width direction by the first movement amount when an image is formed on a second side of the first sheet.

An apparatus includes a movable regulation member that regulates a trailing edge side position of a sheet stack stored in a storage portion in a sheet feeding direction, a trailing edge detection portion, movable together with the regulation member, that detects a sheet surface on the trailing edge side of the sheet stack, and a control unit that detects whether the regulation member is positioned to an end surface on the trailing edge side of the sheet stack based on a detection result by the trailing edge detection portion, and that causes a display unit to provide a warning if the regulation member is not positioned to the end surface, wherein, if a predetermined sheet with thicknesses different between leading edge and trailing edge sides thereof in the sheet feeding direction is set by a setting unit, the control unit does not cause the display unit to provide the warning.

Sheet feeding device and image forming apparatus

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Abiko, Japan

Toshiyuki Miyake