Victor Company of Japan, Limited

Canon Kabushiki Kaisha

Kabushiki Kaisha Toshiba

Toshiba Tec Kabushiki Kaisha

Ricoh Company, Ltd.

Atsugi Unisia Corp.

Hiroyuki Sugiyama

Hiroyuki Ishinaga

Yoichi Taneya

Ryozo Abe

Kenji Yoshihara

Masaki Sakurai

Ken Iguchi

Isao Yahata

Kikuo Mizutani

Yoshiaki Sugizaki

Hiroyuki Taki

Takahiro Kawaguchi

Toshiaki Oshiro

Chiaki Iizuka

Hidetoshi Yokochi

Hiroyuki Hazu

Hiroyuki Tsuchihashi

Yoichi Yamaguchi

Toshio Kashino

Yuichi Saito

Yoshinori Misumi

Sadayuki Sugama

Kiyomitsu Kudo

Satoshi Shimazu

Nobuaki Takahashi

Yoshinori Nakagawa

Tomoko Takahashi

Aya Yoshihira

Jun Ishii

Masahiko Shakuto

Taichi Urayama

Masaki Sukesako

Masahiko Kubota

Koji Tanaka

Yukiko Iwasaki

Ryuji Yoshida

Jun Yura

Kazuaki Kamihara

Jun Shiori

Ryusuke Mase

Masami Ikeda

Teruo Ozaki

Masami Kasamoto

Yoshiyuki Imanaka

Hideo Sato

Masashi Miyagawa

Torachika Osada

Genji Inada

Ken Ikegame

Haruhiko Terai

Takamasa Ozeki

Ichiro Saito

Shuji Koyama

Masahiko Ogawa

Tomoyuki Hiroki

Yoshie Asakawa

Akira Asai

Ryoji Inoue

Hiroshi Sugitani

Hirokazu Komuro

Takashi Saito

Hideki Zemba

Hiroaki Mihara

Yasunobu Takagi

Akitoshi Yamada

Hiroshi Tajika

Noribumi Koitabashi

Masao Kato

Yoshiaki Suzuki

Hiroshi Hosokawa

Hiroyuki Taguchi

Takuya Seshita

Takeshi Uchitani

Akio Saito

Kazuaki Masuda

Hiroshi Nakai

Shoji Ueno

Atsushi Kurokawa

Kayoko Tanaka

Fumihiro Gotoh

Akihiro Yamanaka

Tsuyoshi Orikasa

Masanori Kawasumi

Kazuhisa Sudo

Junichiro Iri

Kohta Fujimori

Fumiyuki Yamaoka

Shunichi Hashimoto

Shin Kayahara

Ichiro Kadota

Shuji Tanaka

Kazuki Matsumoto

Mitsuo Sasaki

Shigekazu Enoki

Masayuki Ando

Osamu Tajima

Mikio Ishibashi

Yoshiaki Ohda

Atsumi Hirata

A developing device includes a plurality of conveyance passages, an opening portion, and a filter. Developer is conveyed in the plurality of conveyance passages in a longitudinal direction of the developing device. The opening portion is disposed in one conveyance passage of the plurality of conveyance passages and communicates with an outside of the developing device. The filter is fitted in the opening portion and has both a collecting ability to collect the developer and a ventilation ability to ventilate the one conveyance passage to the outside of the developing device. The collecting ability of the filter is higher in a high-bulk portion in which bulk of the developer increases in the one conveyance passage than in a low-bulk portion in which the bulk of the developer decreases in the one conveyance passage. The ventilation ability of the filter is lower in the high-bulk portion than in the low-bulk portion.

Developing device, process cartridge, and image forming apparatus

An image forming apparatus includes a fixing device, a temperature detector, and processing circuitry. The fixing device fixes a toner image on a surface of a sheet by heating of a heater. The temperature detector detects an internal temperature of the image forming apparatus. The processing circuitry switches a continuous print mode to an intermittent print mode when the internal temperature is equal to or higher than a first execution temperature during the continuous print mode. The processing circuitry cancels the intermittent print mode and switches to the continuous print mode when the internal temperature is equal to or lower than a first cancellation temperature. The processing circuitry causes the heater to stop heating the fixing device in the intermittent print mode when the internal temperature is higher than the first cancellation temperature even after a predetermined time has elapsed since a start of the intermittent print mode.

Image forming apparatus and method for switching a continuous print mode to an intermittent print mode

An image forming device capable of reducing resources related to destruction of a wireless tag is provided. The image forming device according to the present embodiment includes a reader and writer, a fixing unit, a determination unit, and a control unit. The reader and writer reads information from the wireless tag. The fixing unit heats and conveys a sheet having the wireless tag. The determination unit determines a defect of the wireless tag based on a reading result of the reader and writer. If the determination unit determines that the wireless tag is defective, the control unit controls the fixing unit to increase an amount of heat applied to the wireless tag such that information cannot be read from the wireless tag.

Image forming device

An image processing device includes a heating unit, a memory, and a control unit. The heating unit heats a sheet at a temperature which is determined in each type of job in processing of a job related to image processing. The memory stores a type of job, and the number of sheets which is processed in the job, in each of job which is not executed yet. The control unit rearranges an executing order of jobs which are not executed yet so that jobs of the same type are continuously performed, when there is a job of which the number of sheets to be processed in one job is larger than the predetermined number of sheets.

Image processing device, control method, and non-transitory recording medium for processing one or more types of print jobs including at least one type of decolorable toner

A detection unit detects a presence of an individual near an image forming apparatus during a sleep mode in which an image forming unit, an image reading unit, and a user interface unit enter a sleep state of non-conduction. An individual specifying unit specifies the individual detected by the detection unit. A determination unit determines whether there is a printing job corresponding to the individual specified by the individual specifying unit. A control unit warms up a heater by causing the fixer to transition from the sleep state to a ready state when the determination unit determines that there is the printing job corresponding to the individual specified by the individual specifying unit. Conversely, the control unit maintains the fixer in the sleep state when the determination unit determines that there is no printing job corresponding to the individual specified by the individual specifying unit.

Image forming apparatus and method of controlling return from sleep mode in image forming apparatus

An image forming apparatus includes a first image forming section which uses a color material for non-removal to form an image on an image receiving medium, a second image forming section which uses a color material for removal to form an image on an image receiving medium, a first processing section for making a hole in the image receiving medium, a second processing section which does not make a hole in the image receiving medium, and a controller which executes the second processing without executing the first processing to the image receiving medium on which the image is formed with the color material for removal at the time of executing a job if the job contains formation of the image with the color material for removal and carries out the first processing.

Image forming apparatus for executing post processing and processing method

An image forming apparatus includes an image bearer, a charging, a charge power supply to supply a charging bias to the charging device, a developing device, a toner adhesion amount detector, an environment detector, and a controller to determine whether to execute a charging bias adjustment process in which the charging device charges the image bearer to have different potentials, the developing device supplies the toner to the image bearer according to the different potentials, the toner adhesion amount detector detects the amount of toner adhering to the image bearer, and the controller adjusts the charging. The controller includes a memory device to store the environment data, and is configured to compare the environment data with previous environment data stored in the memory device, and determine not to execute the charging bias adjustment process when an environment change amount is not greater than a threshold.

Image forming apparatus and image forming system

In general, a control method of an embodiment is to control a setting screen which enables selection between a first mode for forming an image using a color material for non-removal and a second mode for forming an image using a color material for removal. When the first mode is set, the control method enables, on a setting screen, the setting of a punching post-processing for making a hole in an image receiving medium and a non-punching post-processing for making no hole in the image receiving medium, and when the second mode is set, on the setting screen, disables the setting of the punching post-processing, but enables the setting of the non-punching post-processing.

Method for controlling setting screen to enable selection between first mode for forming image using color material for non-removal and second mode for forming image using color material for removal

An image forming apparatus includes a first image forming section, a second image forming section, a first processing section, a second processing section and a controller. The first image forming section uses a color material for non-removal. The second image forming section uses a color material for removal. The first processing section carries out a first processing for making a hole in the image receiving medium. The second processing section carries out a second processing which does not make a hole in the image receiving medium. The controller executes the second processing at the time of executing a job if the job contains formation of the image with the color material for removal and carries out the first processing.

A reading apparatus includes a paper feed section that feeds a sheet on which an image is formed with decolorable material to a conveyance path. A reading section positioned on the conveyance path reads the image formed on the sheet and generates image data corresponding to the read image. A paper discharge section discharges the sheet after the reading section has read the image. If the reading section reads a portion of the image formed on the sheet due to an error, the sheet is conveyed to the reading section again to read a remainder portion of the image that was not initially read in the reading section and to generate image data corresponding to the remainder portion of the image. The image data corresponding to the read portion of the image is combined with the image data corresponding to the remainder portion of the image.

Decoloring apparatus

In accordance with an embodiment, a sheet processing apparatus comprises a decoloring section, a stacking section, an image forming section, a sheet feed roller and a combined roller. The decoloring section carries out a decoloring processing on a sheet. The sheet subjected to the decoloring processing is discharged to the stacking section. The image forming section carries out an image forming processing on the sheet fed from the stacking section. The sheet feed roller feeds a sheet stacked in the stacking section to a conveyance path through which the sheet is fed to the image forming section. The combined roller aligns the sheets to be discharged to the stacking section at a reference position in a conveyance direction in which the sheets are conveyed to the sheet feed roller, and feeds the sheets stacked in the stacking section to the sheet feed roller along the conveyance direction.

Sheet processing apparatus

An image forming apparatus includes a latent image bearer to rotate, an image forming unit including a charger and a developing device, a charge power supply to output a charging bias applied to a charger, a transfer device, a toner adhesion amount, and a controller. The controller causes the image forming unit to form a background fog pattern in a background area of the latent image bearer while changing a background potential, acquires toner adhesion amount values detected at different positions of the background fog pattern, having different potentials, sorts the toner adhesion amount values in an order of the background potential, determines a relation between the background potential and background fog amount based the toner adhesion amount values except any toner adhesion amount value out of monotonicity, and adjust the charging bias to an optimum value computed based on the determined relation.

Image forming apparatus and charging bias adjusting method therefor

An erasing apparatus includes a path configured to carry a sheet, and an erasing unit arranged on the path and configured to erase an image on the sheet by heating the sheet. The erasing apparatus further includes a fan configured to blow air downstream from the erasing unit in a sheet carrying direction, and a shutter disposed between the fan and the erasing unit and movable to control the amount of air blown by the fan from reaching the erasing unit.

Erasing apparatus and cooling method

A decoloring apparatus includes a reading section that reads the image formed on a sheet and generates image data corresponding to the read image. A decoloring section decolors the image formed on the sheet. If the reading section reads only a portion of the image formed on the sheet due to an error, the image data corresponding to the read portion of the image is stored. After the error is resolved, the sheet is conveyed to the reading section again to read a remainder portion of the image that was not initially read in the reading section and to generate image data corresponding to the remainder portion of the image. The image data corresponding to the read portion of the image is combined with the image data corresponding to the remainder portion of the image.

An image forming apparatus includes an electrostatic latent image bearer; a charger to charge a surface of the electrostatic latent image bearer; a power source to output a charging bias supplied to the charger; an electrostatic latent image writing unit to write an electrostatic latent image on the surface of the electrostatic latent image bearer charged by the charger; a developing unit including a developing member to develop the electrostatic latent image to obtain a toner image; a developing power source to output a developing bias supplied to the developing unit; a processor to adjust the charging bias output from the power source to a predetermined target value; and a storage unit to store an adjustment value algorithm.

Image forming apparatus

Growing community of inventors

Kanagawa, Japan

Hiroyuki Sugiyama