Having Filtering (e.g., Ozone Removal) Patents (Class 399/93)
  • Patent number: 11561505
    Abstract: An image forming apparatus includes a transfer member, a fixing member, a guide member, and an attraction member. The transfer member transfers a developer to a medium. The fixing member fixes onto the medium the developer transferred to the medium. The guide member is disposed between the transfer member and the fixing member to guide the medium. The attraction member attracts the developer through the opening. An opening is located upstream of the guide member in a medium transport direction.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: January 24, 2023
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Kazunari Ishii, Akio Shimonaga, Tetsuya Kawatani
  • Patent number: 11543771
    Abstract: An image forming apparatus includes an image forming unit, a fixing unit, a heating portion, a duct with a suction opening and an exhaust opening, a fan connected to the exhaust opening and a sheet-like filter provided with a base layer and a collecting layer laminated on the base layer. The filter is disposed so that the collecting layer is inside and the base layer is outside and the filter becomes a convex shape to the outside from the suction opening. When a width of the suction opening is d1, and a maximum height of the filter from an imaginary surface passing through an edge portion of the suction opening is L, the filter satisfies 0.003<L/d1<5.
    Type: Grant
    Filed: March 3, 2022
    Date of Patent: January 3, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koji Nojima, Kota Aoki
  • Patent number: 11543770
    Abstract: An image forming apparatus includes a housing; a fixing device that is disposed in the housing and that heats an unfixed image made of developer to fix the unfixed image to a recording medium; an exhaust device having an air inlet through which air heated by the fixing device is sucked, an air outlet through which the air sucked through the air inlet is discharged from the housing, a flow path portion having a flow path space through which the air flows from the air inlet to the air outlet, and an air flow generator that generates an exhaust air flow in the flow path space; and plural mesh members that are located in a region between and including the air inlet and the air outlet and arranged in a direction in which the air flows, the mesh members collecting fine particles contained in the air that is sucked.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: January 3, 2023
    Assignee: FUJIFILM Business Innovation Corp.
    Inventor: Tetsuya Kawatani
  • Patent number: 11500330
    Abstract: Provided is an image forming apparatus including an image carrier, an exposure device, a developing device that supplies a developer to form a toner image, and a hardware processor that controls the image carrier, the exposure device, and the developing device. The image forming apparatus further includes a fume prevention plate that covers a part of an internal space of the developing device where the developing roller is disposed and the developer is stored and that prevents the developer from scattering outside from the internal space, a suction duct, and an air suction device. One end of the suction duct is connected to the internal space and another end of the suction duct is connected to the air suction device. The fume prevention plate includes a movable portion. A position of the movable portion can be changed between a first position and a second position different from the first position.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: November 15, 2022
    Assignee: KONICA MINOLTA, INC.
    Inventors: Shota Sakurai, Kei Yuasa, Takenobu Kimura, Tetsuya Ishikawa
  • Patent number: 11144009
    Abstract: A toner collection device includes a casing, a fan unit and a filter. The casing has a suction port and an exhaust port. The fan unit is supported by the casing in a swingable manner and generates an air flow from the suction port to the exhaust port inside the casing. The filter is disposed inside the casing and supported by the casing or the fan unit, and collects a toner contained in the air flow flowed into the casing through the suction port. When the fan unit is driven to generate the air flow, a swinging of the fan unit is transmitted to the filter to vibrate the filter.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: October 12, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Naoki Mizutani
  • Patent number: 10481061
    Abstract: The sensor includes: a collection part 30L, 30M, 30S in which a plurality of filter members for collecting particulate matter in exhaust gas are arranged in descending order of porosity from an exhaust upstream side to an exhaust downstream side of the exhaust gas; a pair of electrodes 32, 33 which is arranged to each of the plurality of filter members 30L, 30M, 30S and facing each other with the plurality of filter members interposed therebetween; and estimation means 42 to 44 for estimating a particulate matter amount collected on each of the plurality of filter members having different porosities based on a capacitance change amount between the pair of electrodes 32, 33.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: November 19, 2019
    Assignee: ISUZU MOTORS LIMITED
    Inventor: Tadashi Uchiyama
  • Patent number: 10474098
    Abstract: A powder processing apparatus includes: a fixing unit that is provided in an apparatus housing and heats powder containing ultrafine particles to fix the powder on a processed medium; an exhaust unit including an exhaust path through which air near the fixing unit can be exhausted, a capturing part capable of capturing the ultrafine particles, and an airflow generating part that generates exhaust airflow, the exhaust unit exhausting the air near the fixing unit to the outside of the apparatus housing through the exhaust path; and an intake unit including an intake path through which air outside the apparatus housing can be taken in, a capturing part capable of capturing the ultrafine particles, and an airflow generating part that generates intake airflow, the intake unit taking the air outside the apparatus housing into the apparatus housing through the intake path. An intake port is provided below an exhaust port.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: November 12, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Masayoshi Nakao
  • Patent number: 10268160
    Abstract: An image forming apparatus includes: an image formation section, a fan, a filter, a contamination detection section, an exhaust path, a circulation path, an air amount adjustment section, and a control section. The fan suctions and exhausts air at surroundings of the image formation section. The filter permits the air exhausted by the fan to pass through the filter. The contamination detection section detects a contamination level of the air which has passed through the filter. The exhaust path discharges the air to an outside. The circulation path returns the air towards a suction side of the fan. The air amount adjustment section increases and decreases an amount of the air flowing through the exhaust path and an amount of the air flowing through the circulation path oppositely to each other. The control section controls the air amount adjustment section in accordance with the contamination level of the air.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: April 23, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Tadashi Miyazaki
  • Patent number: 10261468
    Abstract: An image forming apparatus includes: a fixing unit that fixes an unfixed image held by a recording medium by heating the recording medium; a first air discharge unit that is disposed at one end in a direction that cross a recording medium feeding direction of the fixing unit and discharges air around the fixing unit to an outside; a second air discharge unit that is disposed on a downstream side of the fixing unit in the recording medium feeding direction and discharges air around the second air discharge unit to an outside; and an air discharge duct member that causes discharge air of the first air discharge unit and discharge air of the second air, discharge unit to merge together and guides resulting merged air to a discharge opening of a rear wall of an apparatus main body of the image forming apparatus.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: April 16, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yoshitaka Kuroda, Fuyuki Kokubu
  • Patent number: 10242131
    Abstract: Provided are a numerical simulation system and method for an atmospheric wind flow by computational fluid dynamics. In detail, provided are a numerical simulation system and method for an atmospheric wind flow by computational fluid dynamics capable of more rapidly and efficiently performing a fluid analysis and easily making a wind power resource map by setting an analysis result of a wind direction depending on the same analysis area as an initial condition (second initial condition in the present invention) of an analysis of another wind direction.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: March 26, 2019
    Assignee: Korea Institute of Energy Research
    Inventor: Hyun-Goo Kim
  • Patent number: 10025270
    Abstract: An exhaust duct provided on a back surface side of an image forming apparatus, and including a plurality of air ducts through which air inside the apparatus is exhausted toward outside the apparatus, a plurality of filters provided in the plurality of air ducts, respectively, and which removes a fine particle included in the air exhausted through the air ducts, and a filter case that houses the plurality of filters in a manner that the filters are able to be taken out from the filter case are included, and the filter case is provided in a drawable manner to one of side surface sides in a right and left direction or to an upper surface side in an up and down direction of the image forming apparatus, from a front surface side to a back surface side of the image forming apparatus, with respect to the image forming apparatus.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: July 17, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Takahashi, Takuya Matsumura, Chiharu Kageyama
  • Patent number: 9977400
    Abstract: An exhaust air cleaning apparatus includes a cleaning duct for cleaning air to be exhausted from an exhaust port of an image forming apparatus. In the cleaning duct, a fan and a filter are provide between an inflow part connected with the exhaust port of the image forming apparatus and a discharge port for discharging air from the inside of the cleaning duct. The exhaust air cleaning apparatus further includes a pressure adjusting part for adjusting the pressure in the cleaning duct. The pressure adjusting part performs pressure adjustment so that the pressure at a pressure adjusting position located between the inflow part and the fan in the cleaning duct falls within an appropriate pressure range determined in advance to be equal to or less than atmospheric pressure.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: May 22, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Masahiro Yamaguchi, Shigeru Tashiro, Kuniya Matsuura, Hiroshi Mizuno, Masayuki Satou, Shoichi Yoshikawa
  • Patent number: 9939779
    Abstract: A discharge tray is arranged above a space in which a toner bottle is stored, and a sheet having passed a fixing unit is discharged onto the discharge tray. A cooling fan cools the sheet on which a toner image has been fixed in the fixing unit before the sheet is discharged onto the discharge tray. A duct introduces outer air from an exterior to the cooling fan. A tray-side hole portion is formed in a portion of the discharge tray. Further, a duct-side hole portion is formed in a portion of the duct, and the duct communicates with the space in which the toner bottle is stored through the tray-side hole portion and the duct-side hole portion.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: April 10, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masahiko Fujii
  • Patent number: 9857769
    Abstract: An image forming apparatus includes an image forming unit, first and second obtaining units, an output unit, and a sender. The image forming unit forms an image on a recording medium. The first obtaining unit obtains, from each of plural measuring devices provided in different locations outside an air-conditioning control device, environment information indicating an environment around a corresponding measuring device. The second obtaining unit obtains position information indicating a position of a user. The output unit outputs air-conditioning control information based on the obtained environment information and the obtained position information for controlling a subject air-conditioning control device. The sender sends the output air-conditioning control information to a destination device.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: January 2, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yoshiyuki Ono, Haruo Harada, Akira Tateishi, Hiromitsu Ohashi
  • Patent number: 9785107
    Abstract: A frame for an image forming apparatus includes a first side plate and a second side plate, a post, and a stay. The post includes a first side portion which is a surface opposing the first side plate and which includes a first fastening portion to which the first side plate is fastened, and a second side portion which is formed by being bent from the first side portion in a direction substantially perpendicular to the first side portion and which includes a second fastening portion, to which the stay is fastened, positioned at a height different from a height of the first fastening portion with respect to the vertical direction. The second side portion is continuously formed at least from the first fastening portion to the second fastening portion with respect to the vertical direction.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: October 10, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tsuyoshi Nagasaki
  • Patent number: 9766570
    Abstract: A blower duct includes a path section and multiple suppressing sections. The path section connects an inlet and an outlet and allows air to flow therethrough. The suppressing sections are provided at different locations in the air flowing direction and suppress the flow of the air. The path section at least has an entrance path section and a first bent path section. One of the suppressing sections is a first suppressing section including a blocking portion and openings. The blocking portion is disposed in the first bent path section and blocks the flow of the air. The openings are disposed at different positions in one direction and include a first opening disposed closest to the inlet at a first height position where a height from a reference base surface of the first bent path section is larger than the remaining opening or openings.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: September 19, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yasunori Momomura, Yuki Nagamori, Masafumi Kudo
  • Patent number: 9727022
    Abstract: An image forming apparatus includes an apparatus body, an image forming device to form an image on a recording medium, a casing to accommodate the image forming device, a sheet discharging port through which the recording medium having the image is discharged from the casing, a sheet stacker to stack the recording medium output through the sheet discharging port and opening on one side of the apparatus body and surrounded by outer walls including an outer wall having the sheet discharging port, an air guide opening disposed within a sheet passing range in a width direction of the recording medium in a sheet conveying path through which the recording medium having the image passes from the image forming device to the sheet discharging port, and an air suction fan to discharge air passing through the air guide opening to an outside of the casing.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: August 8, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tomohiro Komatsuzaki, Osamu Kitagawa
  • Patent number: 9541898
    Abstract: An image forming apparatus includes an image forming station configured to form an image on a recording material; an electric circuit configured to operate the image forming station; a casing configured to accommodate the electric circuit; a recess provided on the casing; a voltage source input portion provided on a wall surface of the recess and configured to supply electric power to the electric circuit from an outside of the casing; and an air vent opening formed in a wall surface of the recess for permitting air flow between an inside and an outside to cool an inside of the casing.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: January 10, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomohiro Shiomi
  • Patent number: 9405272
    Abstract: An image forming apparatus includes a fuser unit which includes a heat roller and a pressure roller; a duct which is formed in a long shape in a direction along an axis of the heat roller, is disposed in the vicinity of the fuser unit along the axis of the heat roller, and is exhausted by an exhaust fan which is provided on one end side in a long-side direction; an exhaust port which is opened to a first side wall of the fuser unit side of the duct and causes the fuser unit and the duct to communicate with each other; and a planar filter which is attached to an inner wall surface of the duct. The filter includes a filter base material having an irregular surface shape in which ditches and convex portions are alternately disposed; and a frame which is bonded to both ends orthogonal to an irregularity direction of the filter base material, the convex portion of the filter base material protrudes from the frame, and the convex portion of the filter base material is bonded or stuck to the inner wall surface.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: August 2, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hayato Wachi, Youichi Idera, Masaya Shitami, Takanori Kitagawa
  • Patent number: 9389585
    Abstract: An image forming apparatus includes a process unit, an exhaust path, and a positioning member movable between (i) a positioning position for positioning the process unit and (ii) a releasing position for releasing the process unit, the positioning member having an air path, the air path and the exhaust path being connected in a case where the positioning member is in the positioning position, and the air path and the exhaust path being disconnected in a case where the positioning member is in the releasing position.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: July 12, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hideaki Kadowaki
  • Patent number: 9304489
    Abstract: An image forming apparatus includes: an image bearer; a charging unit configured to charge a surface of the image bearer by causing a discharging member to discharge; a latent image forming unit configured to form a latent image on the surface of the image bearer charged by the charging unit; a developing unit configured to develop the latent image formed on the surface of the image bearer into a toner image with developer containing toner; an airflow generating unit configured to generate an airflow inside the image forming apparatus such that the airflow passes through at least the charging unit; an image-area-ratio information acquiring unit configured to acquire information on an image area ratio of the toner image; and a control unit configured to control the airflow generating unit so as to change a flow velocity of the airflow in accordance with the image area ratio.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: April 5, 2016
    Assignee: Ricoh Company, Limited
    Inventor: Takamichi Orikasa
  • Patent number: 9298159
    Abstract: A removal mechanism includes a removing member, an accommodation section, a receiver, and a cooling path. The removing member rubs against an extraneous-matter-adhered member, to which extraneous matter is adhered, so as to remove the extraneous matter therefrom. The accommodation section accommodates therein the extraneous matter removed by the removing member. The receiver receives, at a lower side of the accommodation section, the extraneous matter spilling out and dropping from the accommodation section. The cooling path allows gas so flow therethrough so as to cool the accommodation section from outside thereof. The cooling path is spatially isolated from a passage chamber through which the extraneous matter dropping from the accommodation section toward the receiver passes, an accommodation chamber for the extraneous matter in the accommodation section, and a chamber above the receiver that receives the extraneous matter.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: March 29, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Shinya Mitorida, Satoru Nishikawa, Akira Numazaki, Satoshi Takada, Taichi Fuchu, Hirotake Eguchi
  • Patent number: 9250578
    Abstract: An image forming apparatus includes first and second rollers forming an image fixing nip, the second roller being disposed below the first roller; a casing accommodating the first and second rollers and having a sheet introduction opening and a sheet discharge opening; a suppression portion provided at a position, away by not less than 0.5 mm and not more than 3.5 mm, from a surface of the first roller in a space extending from the sheet introduction opening to the sheet discharge opening and configured to suppress scattering of particles of predetermined particle sizes resulting from the parting material adjacent the sheet introduction opening; and a substantially closed chamber provided above the casing and having an entrance for permitting entering of the particles guided to the outside of the casing by the suppression portion to stagnate the particles.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: February 2, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kota Aoki
  • Patent number: 9229361
    Abstract: An image forming apparatus includes a developing device; a developer conveyance device including a developer container, a developer reservoir to receive developer discharged from the developer container, and a positive-displacement pump to discharge, from the developer reservoir, developer supplied to the developing device by alternately generating positive pressure and negative pressure due to volume changes; and a controller to control driving of the positive-displacement pump. When the controller recognizes a developer end state of the developer container, the controller lowers a developer conveyance capability of the positive-displacement pump from a setting used before the developer end state is recognized.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: January 5, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Junichi Matsumoto, Kiyonori Tsuda, Nobuo Takami, Yutaka Takahashi, Kentaro Mikuniya, Keinosuke Kondoh, Tetsuya Muto
  • Patent number: 9207588
    Abstract: An image forming apparatus includes: an image forming portion; a fixing portion; a first air blowing portion; and a second air blowing portion. The apparatus is operable in a first air blowing mode in which both the first and second air blowing portions are driven and in which the direction of the air near the exit is the recording material feeding direction, and is operable in a second air blowing mode in which both the first and second air blowing portions are driven and in which a direction of the air near the exit is a recording material feeding direction and a speed of the air is lower than a speed of the air in the first air blowing mode or in which the direction of the air near the exit is the opposite direction to the recording material feeding direction.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: December 8, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Nishida, Takanori Mitani, Akimichi Suzuki, Hideo Nanataki, Shogo Kan
  • Patent number: 9207636
    Abstract: An image forming apparatus has a fusing device in which a recording medium carrying an unfused toner image is nipped at a fusing nip formed between a heated member and a pressing member to fuse and fix the unfused toner image to the recording medium, and an exhaust duct unit through which air around the fusing device is expelled outside. The exhaust duct unit allows a choice between a first exhaust path through which outside air sucked into the image forming apparatus is passed through a space around the fusing device and is then expelled out of the image forming apparatus, and a second exhaust path in which a filter for collecting particles contained in an air stream is arranged and through which the air around the fusing device is passed through the filter and is then expelled out of the image forming apparatus.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: December 8, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Toshiyuki Hamada
  • Patent number: 9207634
    Abstract: An image formation apparatus includes: a developer image carrier configured to carry a developer image; a transfer unit provided in contact with the developer image carrier, and configured to transfer the developer image onto a medium which is conveyed along a medium conveyance path and passes through a contact between the developer image carrier and the transfer unit; a blower provided on one of upstream and downstream sides, in a medium conveyance direction, of the contact, and configured to cool the surface temperature of the developer image carrier; and a temperature sensor provided on the other of upstream and downstream sides, in the medium conveyance direction, of the contact, and configured to sense an ambient temperature around the developer image carrier.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: December 8, 2015
    Assignee: Oki Data Corporation
    Inventor: Manabu Imai
  • Patent number: 9152073
    Abstract: A charging device includes a discharge electrode configured to charge a surface of an image carrier; a charging device body including an opening portion that is provided so as to surround the discharge electrode and be opposed to a surface of the image carrier across a longitudinal direction of the discharge electrode; a charging duct member that is provided so as to surround at least the entire opening portion and configured to introduce and exhaust an airflow within the surrounded area; an intake unit configured to generate an airflow to be guided into the charging duct member; and an exhaust unit configured to exhaust the airflow guided. The charging duct member includes an airflow wall forming unit for covering, with an airflow wall, the entire opening portion from an upstream end to a downstream end in a rotation direction of the image carrier at the opening portion.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: October 6, 2015
    Assignee: Ricoh Company, Limited
    Inventors: Takamichi Orikasa, Fumihito Itoh, Tomohiko Saito, Atsushi Satoh
  • Patent number: 9141072
    Abstract: An image forming apparatus includes a heating element, an interior temperature/humidity detection section, and a controller. The heating element is conducted during connection of the image forming apparatus to an external power source to heat an image bearing member. The interior temperature/humidity detection section detects temperature and humidity in the interior of the image forming apparatus. The controller performs a refresh operation when a relative humidity calculated on the basis of the temperature and humidity detected by the interior temperature/humidity detection section immediately after the image forming apparatus is connected to the external power source is higher than the preset value. The refresh operation is an operation for supply of developer from a development device to the image bearing member and for polish of the surface of the image bearing member with the use of a polishing member.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: September 22, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Eiji Gyotoku, Jun Nakai, Masahito Ishino
  • Patent number: 9141085
    Abstract: An image-forming apparatus comprising a fuser assembly including a heating roller and a pressure roller for fixing a non-fixed image on paper, a duct located in the vicinity of the fuser assembly in parallel to an axis line of the heating roller, an exhaust outlet located on a first side wall of the duct at the fuser assembly side, wherein the exhaust outlet is provided to connect the fuser assembly and the duct, and a plane filter detachably attached to an inside wall of the duct in parallel to the inside wall.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: September 22, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hayato Wachi, Youichi Idera, Masaya Shitami, Takanori Kitagawa
  • Patent number: 9141023
    Abstract: An image forming device includes a photoconductive body, an exposure unit configured with a plurality of light emitting elements aligned in a predetermined direction, the exposure unit being adopted to expose the photoconductive body to light emitted by the light emitting elements, a frame configured to support both sides of the exposure unit in the predetermined direction, the frame having a reference portion configured to position the exposure unit in the predetermined direction in contact with an end of the exposure unit in the predetermined direction, and a pressing member provided to one of the frame and the exposure unit, the pressing member being configured to press the end of the exposure unit against the reference portion.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: September 22, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yosuke Sugiyama, Junichi Yokoi
  • Patent number: 9134654
    Abstract: A developer collection apparatus is provided with a suction duct, a collection box, and an auxiliary fan. One end of the suction duct is arranged near a developing unit. The collection box is connected to the other end of the suction duct and includes a suction fan, where a developer around the developing unit is suctioned and collected via the suction duct by using the suction fan. The auxiliary fan blows air through the suction duct at a certain middle point thereof.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: September 15, 2015
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Shinsaku Yoneda, Shuji Osaki
  • Patent number: 9081362
    Abstract: An image forming apparatus has a structure which prevents contamination of charging units charging photoconductors. The image forming apparatus includes photoconductor units, charging units charging the photoconductor units, and a fan-motor unit changing the flow of air between the photoconductor units and the charging units to prevent substances of fine particles from flowing into the charging units.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: July 14, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hwan Jin Yoon, Il Kwon Kang, Mi Hyun Hwang
  • Patent number: 9063514
    Abstract: The image forming apparatus includes a cooling device for cooling a plurality of cartridges, and a plurality of shielding members for shielding the plurality of openings, respectively. Each developing member is movable between a first position at which the developing member is brought into contact with a photosensitive member and a second position at which the developing member is caused to separate from the photosensitive member. Each of the plurality of shielding members is caused to move in association with a position of the developing member of the cartridge opposed to the opening to be shielded by the each of the shielding members. A gap between the opening and the shielding member the second position of the developing member is smaller than a gap therebetween at the first position of the developing member is.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: June 23, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Tetsuji Suzuki
  • Patent number: 9037034
    Abstract: An image forming apparatus having; a fusing unit that heats and presses a recording medium with an image transferred thereto, thereby fixing the image thereon; a first duct section in which air that contains emissions generated by the fusing unit flows; an ion generation unit provided away from the first duct section to generate ions; a second duct section in which air that contains the ions generated by the ion generation unit flows; a third duct section connected to the first and second duct sections, such that air flows in from the first and second duct sections, whereby the emissions are charged by the ions; a filter unit provided in the third duct section to trap the charged emissions; and a blowing unit that generates air flows from the connections with the first and second duct sections in the third duct section toward the filter unit.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: May 19, 2015
    Assignee: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Tomofumi Ikeda, Shoichi Yoshikawa, Kuniya Matsuura, Masayuki Satou, Ryo Oshima, Noboru Oomoto
  • Patent number: 9031449
    Abstract: A toner collector includes a housing, an inlet port, a fan, a discharge port, a first upstream side filter, and a downstream side filter. The inlet port is opened in the housing. The fan is disposed in the housing, and intakes and discharges the airflow having flowed in through the inlet port. The discharge port is provided to the fan. The first upstream side filter is disposed on an upstream side of the fan in a direction of the airflow, and captures the toner and allows passage of the airflow. The downstream side filter is disposed on a downstream side of the discharge port in the direction of the airflow, and allows passage of the airflow discharged from the discharge port and captures the toner. The downstream side filter has a larger cross-sectional area of a cross section perpendicular to the direction of the airflow than the discharge port.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: May 12, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Mitsuhiro Goda, Hiroshi Inui, Koji Izumi, Naoki Mizutani
  • Patent number: 9025990
    Abstract: A printer applies an imaging material to form an image, withdraws vapors from the applied imaging material and treats the withdrawn vapors with a vapor treatment system. The printer heats untreated withdrawn vapors with heat from the vapor treatment system.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: May 5, 2015
    Assignee: Hewlett-Packard Indigo B.V.
    Inventors: Doron Schlumm, Sharon Nagler, Eyal Peleg
  • Publication number: 20150117894
    Abstract: An exhaust fan, an exhaust duct through which a discharged gas flows and a filter which is provided in the exhaust duct are included. A curved portion is provided in the exhaust duct, and the filter is provided on a downstream side in a direction of flow of the gas with respect to the curved portion. On an inside wall of the curved portion of the exhaust duct on an outer side in a radial direction, a first flow control member that uniformizes the amount of the gas flowing through the filter is provided so as to be perpendicular to the shaft of the curved portion, and a space is formed between the first flow control member and an inside wall of the curved portion on an inner side in the radial direction.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 30, 2015
    Applicant: KONICA MINOLTA, INC.
    Inventors: Yusuke NAKAYAMA, Naoki KATAOKA, Hideji HAYASHI
  • Patent number: 8983332
    Abstract: An image forming apparatus has an outline surrounded by a casing. The casing has an opening. The image forming apparatus includes a fixing unit configured to fix an image formed on a recording medium, and a control unit. The fixing unit includes a heating fixing member. The control unit is configured to control an opening degree of the opening based on temperature of a surface of or in the vicinity of the heating fixing member, so as to prevent emission of a substance by an air current to outside of the casing through the opening, during an image forming operation.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 17, 2015
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Takayuki Horie, Hideaki Hayashi, Masashi Saito, Hideki Hadano, Osamu Morita, Satoru Yoneda
  • Patent number: 8965249
    Abstract: A charging device includes a discharging electrode, grid electrode, pair of shielding electrodes, frame, airflow-generating electrode, and impurity-removing member. The discharging electrode produces a corona discharge to charge a surface of photosensitive member. A first voltage is applied to the grid electrode. The discharging electrode is positioned between the shielding electrodes. The frame includes a pair of side walls confronting with each other in the moving direction. The discharging electrode and the pair of shielding electrodes are positioned between the side walls. The airflow-generating electrode is disposed at a position opposite to the discharging electrode with respect to the grid electrode. The airflow-generating electrode is applied with a second voltage lower than the first voltage. The impurity-removing member is provided on an inner surface of the frame.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: February 24, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Hidekazu Nogami, Masato Kobayashi
  • Publication number: 20150030348
    Abstract: An image-forming apparatus comprising a fuser assembly including a heating roller and a pressure roller for fixing a non-fixed image on paper, a duct located in the vicinity of the fuser assembly in parallel to an axis line of the heating roller, an exhaust outlet located on a first side wall of the duct at the fuser assembly side, wherein the exhaust outlet is provided to connect the fuser assembly and the duct, and a plane filter detachably attached to an inside wall of the duct in parallel to the inside wall.
    Type: Application
    Filed: July 23, 2014
    Publication date: January 29, 2015
    Inventors: Hayato WACHI, Youichi IDERA, Masaya SHITAMI, Takanori KITAGAWA
  • Publication number: 20150023686
    Abstract: An image forming apparatus is provided with an image forming portion, a collecting duct, a toner collecting device, a toner collecting device, and a first control portion. Into the collecting duct, unnecessary toner generated in the image forming portion flows together with an airflow. The toner collecting device communicates with the collecting duct, has a path of the airflow formed therein, and collects, by using a filter, the toner together with the airflow generated by an airflow generating portion. The first control portion controls an operation condition of a vibrating operation of a vibrating portion that vibrates the filter, in accordance with at least one of setting conditions relating to environment of the image forming portion, a coverage rate of a toner image, the number of printed sheets, and an image density of the toner image.
    Type: Application
    Filed: July 14, 2014
    Publication date: January 22, 2015
    Inventor: Hisashi Mukataka
  • Publication number: 20140369710
    Abstract: An image forming apparatus is provided with a casing, a drum unit including a photoconductive drum having a central axis extending in a first direction, and a charging device configured to charge the photoconductive drum, a fixing unit configured to fix an image on a printing medium, a fan configured to generate an air flow inside the casing, a filter configured to remove ozone included in the air, a first channel defined in the casing, the air directed from the fixing unit toward the fan flowing in the first channel, a second channel defined in the casing, the air directed from the charging device toward the fan flowing in the second channel, the filter being provided in the second channel, the second channel being arranged next to the first channel, and a blocking member configured to block communication between the first channel and the second channel.
    Type: Application
    Filed: June 11, 2014
    Publication date: December 18, 2014
    Inventors: Norio UCHIDA, Akihiro TORII
  • Publication number: 20140363192
    Abstract: An image forming apparatus including an apparatus main body including an inner wall that defines an accommodation portion, photoconductive drums arranged in parallel at intervals in a predetermined direction toward a first side from a second side, in the accommodation portion, chargers disposed corresponding to the photoconductive drums, respectively, each charger charging a corresponding one of the photoconductive drums, a frame body configured to support the photoconductive drums and the chargers and be accommodated in the accommodation portion, a regulating member disposed between the inner wall and a first-side end portion of the frame body in the predetermined direction, the regulating member configured to apply an urging force to the frame body and regulate an air current, and a pressing member configured to press the frame body against the urging force of the regulating member and regulate a movement of the frame body relative to the apparatus main body.
    Type: Application
    Filed: June 6, 2014
    Publication date: December 11, 2014
    Inventors: Junichi HASHIMOTO, Norio UCHIDA, Takashi ARAKAWA
  • Publication number: 20140321878
    Abstract: An image forming apparatus includes a filter and an exhaust duct. The filter filters and ejects an air. The exhaust duct flows and ejects the air to the filter. The exhaust duct also includes a plurality of partition plates alternately arranged along an exhaust direction on one side inner face and another side inner face facing to each other. The plurality of the partition plates has the partition plate formed so as to incline in an opposite direction to the exhaust direction.
    Type: Application
    Filed: April 18, 2014
    Publication date: October 30, 2014
    Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Kazuhisa KONDO
  • Publication number: 20140294427
    Abstract: A toner collector includes a housing, an inlet port, a fan, a discharge port, a first upstream side filter, and a downstream side filter. The inlet port is opened in the housing. The fan is disposed in the housing, and intakes and discharges the airflow having flowed in through the inlet port. The discharge port is provided to the fan. The first upstream side filter is disposed on an upstream side of the fan in a direction of the airflow, and captures the toner and allows passage of the airflow. The downstream side filter is disposed on a downstream side of the discharge port in the direction of the airflow, and allows passage of the airflow discharged from the discharge port and captures the toner. The downstream side filter has a larger cross-sectional area of a cross section perpendicular to the direction of the airflow than the discharge port.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 2, 2014
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Mitsuhiro Goda, Hiroshi Inui, Koji Izumi, Naoki Mizutani
  • Publication number: 20140241750
    Abstract: A filter on top output bin of a printer is consisted of a box wherein a chamber inside of a box, filtering exit on the top of the box, sealing strips sealed along the edge of the filtering exit, filtering entrance under the box, anti-paper jam strips bored on two literal side of the filtering entrance, and an opening bored on a literal side of the box, a filtering net inside of the box is surrounded by frames, and electrostatic filter attached on the top of the filtering net. The filter can be placed on the top output bin on the printer, or be supported the box by having flexible holder adapted to a variety printer. The output papers won't be impacted into the filtering net by having anti-paper jam strips therefore filter can absorb toner emissions and odor so as to clear the air.
    Type: Application
    Filed: February 27, 2013
    Publication date: August 28, 2014
    Inventor: Ruei-Ching Teng
  • Patent number: 8811851
    Abstract: An image forming apparatus includes a housing, an image forming section, an air passage that is disposed so as to be movable between a first position and a second position, the air passage having an interior through which air is allowed to flow while the air passage is in the first position, a trapping member that is mountably and dismountably disposed in the interior of the air passage, the trapping member trapping an object contained in the air flowing through the interior of the air passage, and a mounting system that mounts the trapping member, which is not completely mounted in the interior of the air passage, in the interior of the air passage by an operation of moving the air passage from the second position to the first position.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: August 19, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yuji Otsuka, Hajime Yoshii, Masayuki Yamamiya, Teruyo Ryuzaki
  • Patent number: 8798494
    Abstract: A filter on top output bin of a printer is consisted of a box wherein a chamber inside of a box, filtering exit on the top of the box, sealing strips sealed along the edge of the filtering exit, filtering entrance under the box, anti-paper jam strips bored on two literal side of the filtering entrance, and an opening bored on a literal side of the box, a filtering net inside of the box is surrounded by frames, and electrostatic filter attached on the top of the filtering net. The filter can be placed on the top output bin on the printer, or be supported the box by having flexible holder adapted to a variety printer. The output papers won't be impacted into the filtering net by having anti-paper jam strips therefore filter can absorb toner emissions and odor so as to clear the air.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: August 5, 2014
    Inventor: Ruei-Ching Teng
  • Patent number: 8787787
    Abstract: A charger according to an embodiment includes: a discharge member which faces an image carrier; a case which supports the discharge member and comprises an air hole in a first surface; a cleaner which contacts with the discharge member; and a cleaner support member which comprises an inlet port and an outlet port connecting with the air hole and a ventilation unit, supports the cleaner, and slides in relation to the case on the first surface.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: July 22, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Yoshiaki Tanaka