Canon Kabushiki Kaisha

Takehiko Suzuki

Toshiaki Miyashiro

Satoru Oishi

Hideki Ina

Akihiko Takeuchi

Koichi Sentoku

Toshihiko Ochiai

Takahiro Matsumoto

Takao Kume

Motoi Kato

Tatsuya Kobayashi

Takaaki Tsuruya

Nobuaki Kabeya

Motoi Katoh

Masahiko Suzumi

Naoki Enomoto

Mikichi Ban

Masaru Nyui

Yasushi Sugiyama

Masahiro Shibata

Shinsuke Kobayashi

Hiroshi Sasame

Akira Ito

Katsuhiro Sakaizawa

Takaaki Akamatsu

Shinichi Tsukida

Seiichi Shinohara

Kohei Okayasu

Shoichiro Ikegami

Takamitsu Soda

Satoshi Tsuruya

Kenji Shindo

Tetsuya Kobayashi

Atsushi Iwasaki

Masaru Shimura

Ken Nakagawa

Tomoo Akizuki

Akihiko Uchiyama

Yoshiro Saito

Shinji Hashiguchi

Yoichiro Maebashi

Atsutoshi Ando

Haruo Fujii

Fumiki Inui

Jun Asami

Masato Sako

Terutaka Endo

Yoshikiyo Yui

Masahito Omata

Makoto Miyazaki

Takao Aoki

Takeshi Niimura

Seiji Inada

Tohru Saito

Atsushi Kitaoka

Hiroki Sasame

Toshiki Nagase

Hironori Kato

Toru Saito

Minoru Yomoda

Yasuaki Ito

Hirokazu Shimeki

There is provided an image forming apparatus including a configuration in which a voltage of a polarity opposite to a toner charging polarity is applied. In the image forming apparatus, a guide region of a pre-transfer guide is located on a photosensitive drum side with respect to a common tangent line of a photosensitive drum and a development roller to reduce contamination of the pre-transfer guide and prevent contamination of recording materials.

Guide member and image forming apparatus comprising the same

An image forming apparatus includes a developing unit which develops a toner image on a surface of a photosensitive member and which collects toner which remains on the surface of the photosensitive member after the developed toner image is transferred to a transfer member. The image forming apparatus includes a controller configured to determine whether a cleaning operation of cleaning the surface of the photosensitive member is to be performed after an image forming operation is performed or control a period of time in which the cleaning operation is performed in accordance with a measured downtime of the image forming apparatus which is a period of time after the image forming operation is terminated and before a next image forming operation is started.

Image forming apparatus

The fixing device includes a rotary member for contacting the unfixed toner image, a pressure member for forming the nip portion by contacting the rotary member, and a cover for covering the rotary member with a space between the rotary member and the cover. In a cross section of the fixing device, the cross section being orthogonal to a generatrix direction of the rotary member, the shortest distance (H) between the nip portion and a farthest surface portion of the rotary member farthest away from a surface portion forming the nip portion of the rotary member, the maximum width (W) of the rotary member in the conveyance direction of the recording member, and an area (S) of the space in a range of the maximum width W in the cross section satisfy with a relationship of S/W&#x2267;0.7&#xd7;H.

Fixing device

A charged particle beam apparatus, which processes an object with a charged particle beam, includes: a detector having a detection surface, and configured to detect a charged particle beam incident on a partial region of the detection surface; and a controller configured to make target incident positions of charged particle beams, to be sequentially incident on the detection surface, different from each other.

Charged particle beam apparatus, drawing apparatus, and method of manufacturing article

A drawing apparatus includes: a detector configured to output a current in accordance with a pulse of a charged particle beam; and a processor including a capacitor and configured to detect a value of a voltage of the capacitor and to obtain an intensity of the pulse based on a value of a capacitance of the capacitor and the detected voltage value. The processor is configured to detect a current output from the detector in accordance with a charged particle beam incident thereon through a voltage drop, to supply a current having a value determined based on the detected current, to the capacitor to detect a value of a voltage of the capacitor, and to obtain the value of the capacitance based on the determined current value and the detected value of the voltage of the capacitor.

Charged particle beam drawing apparatus and method of manufacturing article

An image forming system includes an image forming apparatus including a heating fixing portion and a host computer capable of instructing printing. In the image forming apparatus, throughput can be changed and discriminated in accordance with a printing number. For printing on small size sheets, the system is operable in a normal small size sheet mode and in a high speed small size sheet output mode, in which the printing is effected at a throughput which is higher than that in the normal small size sheet mode and, after completion of the printing, the image forming apparatus rests for a predetermined rest period. The host computer includes a mode selector for selecting a mode from the high speed small size sheet output mode and the normal small size sheet mode, and a controller for transmitting the mode selected by the mode selector to the image forming apparatus.

Image forming system and apparatus with different printing modes for different numbers of printing sheets

An image forming apparatus and method which can take a countermeasure against a tail or the like in consideration of differences of various conditions such as a kind of transfer paper and the like is provided. The apparatus has an image processing portion for extracting an image pattern whose image information has a concentration of 100% and executing a thin-out process for thinning out a predetermined area in the extracted image pattern at a predetermined ratio. The image processing portion or step changes the thin-out process according to the transfer paper kind.

Image forming apparatus and image forming method for preventing scattering of toner

Image forming apparatus and image forming method for eliminating image defects by considering a kind of transfer material

A position detecting method includes the steps of forming an image of a mark on a sensor, performing a first process that processes a raw signal obtained from the sensor with plural parameters, performing a second process that determines an edge of a signal processed by the first process for each parameter, determining a parameter from a result of the second process obtained for each parameter, and calculating a position of the mark based on a determined parameter.

Position detecting method and apparatus

An image forming apparatus comprises an image forming part and a density calibration control part. The image forming part forms an image in any one of a plurality of image forming modes with respectively different processing speeds. The density calibration control part performs image density control for the image forming part in a state where any one of the plurality of image forming modes is applied. Herein, the density calibration control part makes a performing time interval for the image density control in a first image forming mode and a performing time interval for the image density control in a second image forming mode different from each other.

Image forming apparatus and method for controlling the same

An exposure apparatus performs AGA measurement by using a predetermined sample shot group formed on a wafer, and decides an alignment parameter. The exposure apparatus executes wafer alignment processing and exposure processing by using the alignment parameter. The exposure apparatus notifies a central processing unit of AGA measurement results and the alignment parameter. An overlay inspection apparatus measures an actual exposure position on the exposed wafer, and notifies the central processing unit of the measurement result. The central processing unit optimizes alignment processing on the basis of the AGA measurement results, alignment parameter, and actually measured exposure position.

Management system, apparatus, and method, exposure apparatus, and control method therefor

A management apparatus which manages a parameter for an industrial device acquires AGA measurement results obtained by operating the industrial device with an operation job parameter value and non-operation job parameter value. An inspection apparatus acquires an 'inspection result' obtained by inspecting the result of operating the industrial device in the operation job. A change in inspection result upon a change in parameter value is estimated on the basis of the AGA measurement result and inspection result. A variable which minimizes (extreme) both or at least one of the sensitivity (slope) of the inspection result upon a change in parameter value and variations (3&#x3c3;) in inspection result between objects to be processed (e.g., wafers) is set as an optimal parameter.

Management system and apparatus, method therefor, and device manufacturing method

There is provided a position detecting method for detecting a position of an object, on which an alignment mark including plural mark elements is formed. The method includes the steps of obtaining positional information indicative of each position of the plural mark elements, selecting positional information that has predetermined precision among plural pieces of positional information obtained by the obtaining step, and calculating the position of the object using the positional information that has the predetermined precision selected by the selecting step.

Position detecting method

An exposure method for projecting a pattern formed on a reflection plate onto a substrate, via a projection optical system, using extreme ultraviolet light. The method includes a detection step of detecting a relative position between a second mark formed on a plate holding unit for holding the reflection plate and a third mark formed on the reflection plate. The detection step includes sub-steps of (i) detecting light reflected from the second mark with a detector, (ii) detecting light reflected from the third mark with the detector, and (iii) changing a relative position between the plate holding unit and the detector between sub-steps (i) and (ii).

Position detection method and apparatus

An object of the present invention is to provide an image heating apparatus having a flexible sleeve of an excellent durability. To this end, an image heating apparatus according to the present invention includes: a flexible sleeve; a driving roller contacting an external periphery surface of the sleeve and serving to rotate the sleeve; a sliding member contacting an internal periphery surface of the sleeve to form a nip portion in cooperation with the driving roller; and a restricting member for restricting a movement of the sleeve in a generatrix direction of the sleeve, wherein, within an edge face of the sleeve in a mounted state on the apparatus, equally bisected by an imaginary plane substantially parallel to a nip plane of the nip portion into a first area closer to the nip portion and a second area farther from the nip portion, the restricting member executes a restricting action only on the second area.

Image heating apparatus having a flexible sleeve

Growing community of inventors

Saitama, Japan

Takehiko Suzuki