Printing Or Reproduction Device Patents (Class 219/216)
-
Patent number: 8958733Abstract: The disclosed fixing pressure member has a simple structure, is produced through simplified production processes, causes no problem due to continued use thereof, and exhibits excellent durability. Also disclosed is a method for producing such. The fixing pressure member employed in a fixing unit of a fixing device includes a sliding sheet having a sliding surface which slides with respect to the inner peripheral surface of a belt of the fixing unit, and an elastic member provided inside the sliding sheet. The sliding sheet is formed of a resin fiber woven fabric, a resin fiber knitted fabric, a resin nonwoven fabric, or a resin film. The elastic member and sliding sheet are formed through integral molding such that the elastic member is bonded to at least the inner surface of the sliding sheet opposite the sliding surface. The sliding surface has thereon an embossment formed through an embossing process.Type: GrantFiled: April 9, 2013Date of Patent: February 17, 2015Assignees: Nok Corporation, Synztec Co., Ltd.Inventors: Akira Nishida, Shingo Sugiyama
-
Publication number: 20150034623Abstract: In a heater unit for heating a sheet stored in a cassette, respective heating wires of a plurality of heater wires are arranged along an outer periphery of a heat transfer plate so as not to overlap each other, respective power supply wires of the plurality of heater wires are arranged inside a path formed by the heating wires, and both ends of each of the plurality of heater wires are connected to a connector.Type: ApplicationFiled: July 30, 2014Publication date: February 5, 2015Inventors: Yousuke Hata, Kazumi Sato, Takeyuki Suda, Hirohisa Kato, Shinya Suzuki, Manabu Koseki, Toshiyuki Abe, Toshifumi Kakutani
-
Patent number: 8939066Abstract: A reliable conveyor oven minimizes escape of heat by minimizing the time that inlet and outlet openings appear in the baking oven. This may reduce energy consumption by 25%. The baking oven may have a conventional oven and an extension chamber, an outlet opening of the conventional oven acting as an inlet to the extension chamber, the extension chamber having an exit door, the baking oven also having an entrance door defining an entrance inlet. A conveyor holding food items runs through a length of the baking oven. An exit optical sensor may be attached to the extension chamber on opposite sides of the extension chamber such shat an item on the conveyor moving through the extension chamber interrupts a signal between the transmitted and the receiver. The exit sensor may be operatively engaged to a controller for actuating the exit door open and closed rotationally using a pneumatic piston.Type: GrantFiled: April 7, 2011Date of Patent: January 27, 2015Inventors: Lior Hessel, Eran Hessel
-
Patent number: 8942589Abstract: A fixing apparatus includes a film, a heater that contacts the inner face of the film and is capable of changing heat distribution, and a pressure member that forms the nip portion with the heater via the film, the pressure member including a region on which a diameter is increased from a center portion toward an end portion, wherein the fixing apparatus performs heater control so that a ratio of an amount of heat generation at the end portion of the heater to an amount of heat generation at the center portion of the heater is changed based on a temperature of the end portion of the pressure member, during a period at least from when the warm-up of the fixing apparatus is started until the recording material reaches the nip portion.Type: GrantFiled: January 29, 2013Date of Patent: January 27, 2015Assignee: Canon Kabushiki KaishaInventors: Jun Asami, Toshiya Kaino, Taisuke Minagawa, Koji Nihonyanagi
-
Patent number: 8929761Abstract: An image forming apparatus uses a switching element to switch current flowing to an excitation coil, so that a heating layer in a fixing member produces heat that fixes an image to a transported sheet. Based on a change in temperature of the switching element over time, a prediction unit determines, at a predetermined first time point, a predicted temperature of the switching element at a second time point at which a tip of the sheet is scheduled to arrive at the fixing member. When the predicted temperature is at least a predetermined value, a control unit controls power supplied to the excitation coil by restricting switching of the switching element and lifting the restriction, so that by the second time point the detected temperature of the fixing member reaches a temperature necessary for fixing.Type: GrantFiled: April 17, 2012Date of Patent: January 6, 2015Assignee: Konica Minolta Business Technologies, Inc.Inventors: Hitoshi Wakide, Atsushi Yamaguchi
-
Patent number: 8923739Abstract: A fixing device includes a coil provided along an outer surface of a heating member to generate a magnetic flux for induction heating, a coil holding portion on which the coil is mounted, a core portion that forms a magnetic path around the coil and that includes arch cores that cover an outer side of the coil and are disposed opposite the heating member with the coil interposed therebetween and at a plurality of positions spaced in a recording-medium width direction and a side core that covers the outer side of the coil between the arch cores and the coil holding portion, and a core fixing member that presses the core portion toward the coil holding portion via an elastic member. The core portion is fixed in the pressing state to the coil holding portion by fastening the core fixing member to the coil holding portion.Type: GrantFiled: April 6, 2011Date of Patent: December 30, 2014Assignee: KYOCERA Document Solutions Inc.Inventor: Shoko Gon
-
Patent number: 8918001Abstract: A fixing apparatus includes: two rotatable members, for forming a nip, including a region where an outer diameter is increased from a longitudinal central portion toward a longitudinal end portion; a heater; and a controller for controlling a heat generation distribution of the heater. The controller is capable of controlling the heater so that the heat generation distribution of the heater is such that a heat generation amount at the longitudinal end portion is larger than that at the longitudinal central portion in a period from start of the heater until the recording material reaches the nip. A ratio of the heat generation amount at the longitudinal end portion to that at the longitudinal central portion is larger when a cumulative amount of use of the fixing apparatus is larger than a predetermined amount than when the cumulative amount of use is smaller than the predetermined amount.Type: GrantFiled: May 31, 2012Date of Patent: December 23, 2014Assignee: Canon Kabushiki KaishaInventors: Munehito Kurata, Daizo Fukuzawa, Noriaki Sato, Kuniaki Kasuga, Tomonori Sato, Mahito Yoshioka
-
Patent number: 8918043Abstract: An image heating apparatus includes; an endless belt; a plate-like heater slidable on an inner surface of the belt; a driving roller, opposed to the heater through the belt, for rotating the belt and for forming a nip for heating an image on a sheet; an energy supply member including an electrical contact for supplying electrical energy to the heater; a flange provided with a guide for guiding rotation of the belt and a stopper for limiting movement of the belt in an axial direction; and a pressure applying member for applying pressure between the flange and the driving roller. The flange includes a fixing portion for fixing the energy supply member with a predetermined play in a pressing direction of the pressure applying member so that the flange is disengageable in the axial direction relative to the belt integrally with the energy supply member.Type: GrantFiled: November 29, 2012Date of Patent: December 23, 2014Assignee: Canon Kabushiki KaishaInventor: Keisuke Yoshida
-
Patent number: 8913936Abstract: An inner heating member is disposed in contact with an inner circumferential surface of a heating belt and an outer heating member is disposed in contact with an outer circumferential surface of the heating belt to heat the heating belt. A restricting member configured to restrict an orbit of the heating belt is disposed between the inner and outer heating members. Then, at least either one of an area of contact between the inner circumferential surface of the heating belt and the inner heating member and an area of contact between the outer circumferential surface of the heating belt and the outer heating member is changed to quickly change a quantity of heat applied to the outer circumferential surface or inner circumferential surface of the heating belt.Type: GrantFiled: March 8, 2013Date of Patent: December 16, 2014Assignee: Canon Kabushiki KaishaInventors: Shigeaki Takada, Osamu Sugino, Teppei Nagata
-
Patent number: 8913910Abstract: A fixing device includes a fixing belt including a metal layer, a pressing member to form a nip between the pressing member and the fixing belt, an induction current generating coil that faces an outer periphery of the fixing belt, and heats the fixing belt located at a nip position through a hollow inside of the fixing belt, and a coil controller supplies a high frequency to the induction current generating coil.Type: GrantFiled: October 30, 2013Date of Patent: December 16, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba TEC Kabushiki KaishaInventors: Satoshi Kinouchi, Toshihiro Sone, Ryota Saeki
-
Patent number: 8909115Abstract: A fixing device for thermally fixing a developing agent image to a sheet includes: a flexible tubular member having an inner peripheral surface, the tubular member defining an axis extending in an axial direction and having widthwise end portions in the axial direction; a heater; a nip member being in sliding contact with the inner peripheral surface; a backup member confronting the nip member to nip the tubular member in cooperation with the nip member; a stay supporting the nip member; a pair of inner guides being in sliding contact with the inner peripheral surface to guide the same; and a pair of restricting members restricting the widthwise end portions of the tubular member from moving in the axial direction, at least one of the pair of restricting members being formed separately from the inner guides and being assembled to the stay in a direction perpendicular to the axial direction.Type: GrantFiled: March 22, 2012Date of Patent: December 9, 2014Assignee: Brother Kogyo Kabushiki KaishaInventors: Noboru Suzuki, Kei Ishida, Takuji Matsuno, Yoshihiro Miyauchi
-
Patent number: 8884192Abstract: The image heating apparatus includes first and second lines having a first and second heat generation blocks, the first and second lines being disposed at different positions in a transverse direction, wherein the first and second lines are arranged so that a whole of first heat generation block in the first line and a whole of second heat generation block in the second line overlap with each other in the longitudinal direction, and a whole of second heat generation block in the first line and a whole of first heat generation block in the second line overlap with each other in the longitudinal direction. By the virtue of the present invention, it achieves to be capable of suppressing a temperature rise in a non-sheet feeding area in a case of printing a sheet smaller in size than a maximum size supported by the image heating apparatus.Type: GrantFiled: December 30, 2013Date of Patent: November 11, 2014Assignee: Canon Kabushiki KaishaInventor: Yasuhiro Shimura
-
Patent number: 8872072Abstract: A heat-producing element for a fixing device to carry out heat-fixing after a toner image having been formed using a pulverized toner is transferred on an image support, a heat-producing element for a fixing device in which a thin-leaf graphite-pulverized material of a volume specific resistance of 10?6 ?·cm to less than 10?2 ?·cm is incorporated in a heat-resistant resin as a conductive material.Type: GrantFiled: May 23, 2011Date of Patent: October 28, 2014Assignee: Konica Minolta Business Technologies, Inc.Inventors: Eiichi Yoshida, Akira Ohira, Susumu Sudo, Izumi Mukoyama
-
Patent number: 8872073Abstract: An image forming apparatus includes a heat source of a fixing device to heat when an alternate current signal is supplied thereto; a conduction control circuit for controlling an alternate current power source with a conduction control signal, and for supplying the alternate current signal to the heat source; and a control unit for outputting the conduction control signal in a specific pattern. The conduction control circuit includes a conduction control element for switching between conduction and non-conduction at a zero cross timing of the alternate current power source according to the conduction control signal, and for supplying the alternate current signal.Type: GrantFiled: September 15, 2011Date of Patent: October 28, 2014Assignee: Oki Data CorporationInventor: Tetsuya Watanabe
-
Publication number: 20140305925Abstract: A fixing device includes a fixing member, which includes heat-generating layer, and an induction heater to inductively heat the fixing member. The induction heater includes an excitation coil disposed facing an outer circumferential surface of the fixing member to generate a magnetic flux, a ferromagnetic core assembly containing a ferromagnetic core to form a magnetic path to direct the magnetic flux generated by the excitation coil to the fixing member, and a holder to hold the excitation coil and the ferromagnetic core assembly. The ferromagnetic core is insert-molded in and covered by the holder. The holder has a plurality of spherical marks created by a plurality of stabilizing members each having a spherical tip to stabilize the ferromagnetic core in a mold.Type: ApplicationFiled: March 26, 2014Publication date: October 16, 2014Applicant: RICOH COMPANY, LTD.Inventors: Yuuki OKA, Yukari ISOE, Motokazu HASEGAWA
-
Patent number: 8859940Abstract: The image heating apparatus includes first and heat generation member, a connection state switching section switching the first and second heat generation members between a serial connection state and a parallel connection state, the connection state switching section having a first make-or-break-contact relay and a second transfer-contact relay, a drive element provided used for controlling power supplied to the first and second heat generation members, and a capacitor between a power supply path closer to the side of the first and second heat generation members rather than the first relay and a power supply path closer to the commercial power supply side rather than the drive element. The image heating apparatus can suppress an increase in noise level of a noise terminal voltage by performing power control on the heater.Type: GrantFiled: June 22, 2011Date of Patent: October 14, 2014Assignee: Canon Kabushiki KaishaInventor: Yasuhiro Shimura
-
Patent number: 8849171Abstract: In a device or method to fix print images on a recording material, a printing fluid comprising a carrier fluid and chromophoric solid particles are applied to the recording material, the chromophoric solid particles being applied in a form of the print images to be fixed. Hot waste gas and infrared radiation are generated with aid of a porous burner. The infrared radiation is directed towards the recording material in a drying chamber such that the carrier fluid polymerizes or is vaporized, whereby a gaseous air/oil mixture arises in the drying chamber. The air/oil mixture is influenced with aid of the hot waste gas of the porous burner.Type: GrantFiled: June 2, 2011Date of Patent: September 30, 2014Assignee: Océ Printing Systems GmbHInventors: Revdin Dedic, Stefan Roehl
-
Patent number: 8843044Abstract: A fixing device includes a frame, a tubular heat pipe, a flexible fuser belt, a fuser pad, a pressure member, and a deformation relief mechanism. The heat pipe extends in an axial direction. The fuser belt is looped for rotation around the heat pipe. The fuser pad extends in the axial direction inside the loop of the fuser belt. The pressure member extends opposite the heat pipe in the axial direction. The fuser pad is pressed against the pressure member through the fuser belt in a load direction perpendicular to the axial direction to form a fixing nip. The heat pipe and the fuser pad establish stationary contact with each other at their respective axial ends upon formation of the fixing nip. The deformation relief mechanism is provided to at least one of the heat pipe and the fuser pad to relieve deformation of the fuser pad.Type: GrantFiled: February 3, 2011Date of Patent: September 23, 2014Assignee: Ricoh Company, Ltd.Inventor: Kenichi Hasegawa
-
Patent number: 8841587Abstract: An image heating apparatus includes: an endless belt; a heater, contacted to a surface of the endless belt, provided so that a longitudinal direction thereof is parallel to a generating line direction of the endless belt; and a pressing member for forming a nip together with the endless belt. The heater includes: an elongated substrate; a first heat generating line, provided on the substrate along a longitudinal direction of the substrate, including first heat-generating resistors having a negative temperature coefficient of resistance and being electrically connected in series; and a second heat generating line, provided on the substrate along the longitudinal direction of the substrate, electrically connected to the first heat generating line in parallel. The second heat generating line includes a plurality of second heat-generating resistors having the negative temperature coefficient of resistance and being electrically connected in series.Type: GrantFiled: October 4, 2013Date of Patent: September 23, 2014Assignee: Canon Kabushiki KaishaInventors: Takaaki Tsuruya, Hiroyuki Sakakibara
-
Patent number: 8835815Abstract: A heater control device comprising: a storage unit that stores therein a turn-on pattern of a heater specified in units of a predetermined control cycle including a plurality of half-wavelengths of an alternating-current voltage supplied to the heater so as to prevent flickering; a color temperature detecting unit that detects a color temperature of light emitted from a filament of the heater; and a heater control unit that, while operating in a standby mode in which power supplied to the heater is reduced, causes the heater to be fully turned ON at every first period, and then turns ON the heater in the turn-on pattern when the color temperature exceeds a predetermined threshold after the heater is fully turned ON.Type: GrantFiled: June 6, 2011Date of Patent: September 16, 2014Assignee: Ricoh Company, LimitedInventor: Takuma Kasai
-
Patent number: 8818253Abstract: A fixing device includes an endless belt, a fixing rotating body that fixes, in cooperation with the belt, a toner image formed on a recording medium nipped between the fixing rotating body and the belt while rotating in contact with the belt, a support member that supports a load with which the fixing rotating body nips the recording medium with the belt so as to form a nip portion to nip the recording medium between the belt and the fixing rotating body, a driving unit that circulates the belt in a state in which the fixing rotating body is separate from the belt, and a wind-on rotating body on which the belt is wound at a position adjacent to the support member on an upstream side in a direction of transport of the recording medium to the nip portion.Type: GrantFiled: July 12, 2012Date of Patent: August 26, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Kouichi Kimura, Keita Yano, Toshinori Sasaki, Mitsutoshi Hongo
-
Patent number: 8811874Abstract: A belt device includes a flange assembly including a tube inserted into a loop formed by an endless belt at each lateral end of the endless belt in an axial direction thereof and a slip ring slidably contacting a groove mounted on the tube. An inner diameter ID 51 of the slip ring through a rotation axis of the slip ring is smaller than a minimum outer diameter OD50a of the tube through the rotation axis of the slip ring. The minimum outer diameter OD50a is smaller than a maximum outer diameter OD21 of a track of the endless belt rotating in a predetermined direction of rotation through the rotation axis of the slip ring. The maximum outer diameter OD21 is smaller than an outer diameter OD51 of the slip ring through the rotation axis of the slip ring.Type: GrantFiled: July 25, 2012Date of Patent: August 19, 2014Assignee: Ricoh Company, Ltd.Inventors: Toshihiko Shimokawa, Kenji Ishii, Masaaki Yoshikawa, Hiroshi Yoshinaga, Naoki Iwaya, Yoshiki Yamaguchi, Yutaka Ikebuchi, Tetsuo Tokuda, Takahiro Imada, Takamasa Hase, Ippei Fujimoto, Takuya Seshita
-
Patent number: 8811876Abstract: The image heating apparatus includes an endless belt, a heater placed in contact with an inner surface of the endless belt, a holder made of resin, adapted to hold the heater, and provided with a supporting space to be fitted with the heater, where a through hole is formed in a heater receiving surface of the holder at a bottom area of the supporting space; and a back-up member adapted to form a nip together with the heater to pinch and convey a recording material through the endless belt. In the bottom area, hollow portions recessed from the bottom area are provided at opposite ends in a short direction of the holder, being located at locations in a longitudinal direction of the holder different from a location in which the through hole is formed. Consequently, even if the heater heats up abnormally, heater cracks can be prevented.Type: GrantFiled: December 12, 2012Date of Patent: August 19, 2014Assignee: Canon Kabushiki KaishaInventors: Terutaka Endo, Michio Uchida
-
Patent number: 8803038Abstract: An apparatus for image formation comprises a fixing unit, first to fourth switching units, a DC power supply unit, an accumulating unit, a charging unit, and a switching control unit. The first switching unit switches the state of connection between the fixing unit and a commercial power source. The DC power supply unit supplies another electric load of the apparatus than the fixing unit with DC power. The second switching unit switches the state of connection between the DC power supply unit and the commercial power source. The third switching unit switches the state of connection between the charging unit and the commercial power source. The fourth switching unit switches the state of connection between the accumulating unit and the electric load. Based on the state of conduction of the first switching unit, the switching control unit switches the states of conduction of the other three switching units.Type: GrantFiled: March 13, 2008Date of Patent: August 12, 2014Assignee: Sharp Kabushiki KaishaInventors: Masanori Nakazawa, Kentaro Tsuruta, Junichi Kajiwara
-
Publication number: 20140209593Abstract: A pressure-sensitive adhesive force expressing unit including: a thermal head including heater elements arranged along a width direction of a label, the thermal head being configured to heat the label, from an adhesive layer side to form openings in a function layer by the heater elements; and a controller for applying heat energy to the heater elements individually to control heat generation thereof, the controller being configured to control the application of heat energy to the heater elements so that opening lines in each of which the openings are arranged in the width direction of the label are formed in the conveyance direction and to control the application of heat energy so that adjacent at least two of the heater elements generate heat at the same time to form an opening group in which the openings are connected together in the width direction.Type: ApplicationFiled: January 29, 2014Publication date: July 31, 2014Applicant: Seiko Instruments Inc.Inventors: Yoshinori SATO, Kazuo TANI, Koichi HATAKEYAMA
-
Patent number: 8791390Abstract: An image heating apparatus includes an endless belt; first, second, third and fourth resistors having resistances R1, R2, R3 and R4, arranged in this order from an upstream side in a feeding direction of the recording material, and R1=R2 and R3=R4. The connection state of the resistors is switchable between a first state in which the first and second resistors are connected in parallel, the third and fourth resistors are connected in parallel, and a set of the first and second resistors and a set of the third and fourth resistors are connected in parallel, and a second state in which the first resistor second resistors are connected in series, the third and fourth resistors are connected in series, and a set of the first and second resistors and a set of the third and fourth resistors are connected in parallel.Type: GrantFiled: July 27, 2012Date of Patent: July 29, 2014Assignee: Canon Kabushiki KaishaInventor: Satoru Taniguchi
-
Publication number: 20140169846Abstract: The heater is capable of improving heat generation uniformity in a sheet feeding area while suppressing the temperature rise of a non-sheet feeding portion. Each of heat generation lines includes a plurality of heat blocks in which a plurality of heat generating resistors are electrically connected in parallel between two conductive members. The heat generation lines are arranged in a lateral direction of the substrate, and the heat blocks are arranged so that the end of the heat block in the heat generation line of a first row does not overlap with the end of the heat block in the heat generation line of a second row in a longitudinal direction of a heater.Type: ApplicationFiled: December 30, 2013Publication date: June 19, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Yasuhiro Shimura, Koji Nihonyanagi
-
Patent number: 8737877Abstract: A fixing device for thermally fixing a developer image to a sheet fed in a sheet feeding direction includes: a tubular flexible fusing member; a heater; a nip member; a resiliently deformable backup member; and an adjustment mechanism. The fusing member has an inner peripheral surface defining an internal space. The heater is disposed in the internal space and radiates radiant heat. The nip member is disposed in the internal space and receives the radiant heat from the heater. The inner peripheral surface is in sliding contact with the nip member. The resiliently deformable backup member provides a nip region in cooperation with the nip member upon nipping the fusing member between the backup member and the nip member. The adjustment mechanism moves the nip member between a first position and a second position different from the first position in the sheet feeding direction to adjust the sheet feeding direction.Type: GrantFiled: January 27, 2011Date of Patent: May 27, 2014Assignee: Brother Kogyo Kabushiki KaishaInventors: Noboru Suzuki, Kenji Takeuchi
-
Publication number: 20140138372Abstract: An image heating apparatus or a heater used in the image heating apparatus includes a thermally conductive anisotropic sheet provided on one surface of the heater on which a temperature detection member is provided. The sheet is not provided at a portion of the heater where the temperature detection member is provided, or the thickness of the sheet is reduced at a portion where the temperature detection member is provided compared to the thickness thereof in the surrounding area of the portion. Accordingly, responsiveness of the temperature detection member is improved.Type: ApplicationFiled: November 19, 2013Publication date: May 22, 2014Applicant: CANON KABUSHIKI KAISHAInventor: Ryota Ogura
-
Patent number: 8712273Abstract: The present disclosure is directed to enhance thermal efficiency of a fixing apparatus while a belt of the apparatus is heated, the fixing apparatus including: a belt including a plurality of heaters therein; a nip forming member that contacts with an inner surface of the belt; and a pressure member that forms a nip portion in conjunction with the nip forming member through the belt, wherein a ratio of an amount of heat generation by a heater farther from the nip portion to another heater closer to the nip portion is changed according to a speed at which a recording material is conveyed.Type: GrantFiled: February 27, 2012Date of Patent: April 29, 2014Assignee: Canon Kabushiki KaishaInventor: Hiroyuki Kadowaki
-
Patent number: 8705245Abstract: A sensor device has a ceramic carrier substrate. At least two conductor tracks are arranged on the carrier substrate. The sensor device has at least one ceramic component that is in the form of a chip and is connected to the conductor tracks in an electrically conductive manner. The at least one ceramic component is mechanically connected to the conductor tracks by means of a screen printing paste which has been burnt in.Type: GrantFiled: January 28, 2011Date of Patent: April 22, 2014Assignee: EPCOS AGInventors: Gerald Kloiber, Heinz Strallhofer, Norbert Freiberger
-
Patent number: 8698046Abstract: The image heating apparatus includes a heater that achieves even heat-generation distribution and suppression of a non-sheet feeding portion temperature increase when an image is printed on a sheet whose size is smaller than a maximum size for the apparatus, and an endless belt, wherein plural heat-generation resistive members having positive temperature coefficients are connected in parallel are provided between first and second conductive members provided along a longitudinal direction of a substrate; plural heat-generation blocks including the plural heat-generation resistive members connected in parallel, are arranged in series along the longitudinal direction; and in the plural heat-generation resistive members included in one of the heat-generation blocks, a heat-generation resistive member arranged at an end portion in the longitudinal direction has a resistivity value higher than that of a heat generation resistive member arranged at a center in the longitudinal direction, or an interval between heatType: GrantFiled: December 20, 2010Date of Patent: April 15, 2014Assignee: Canon Kabushiki KaishaInventors: Yasuhiro Shimura, Koji Nihonyanagi
-
Patent number: 8682191Abstract: There is provided an image forming apparatus including: a forming section that, based on image forming data including image data of an image to be formed on paper and paper data relating to the paper, forms a toner image according to the image data on paper; a fixing section that fixes the toner image formed on the paper; a switching section that on operation switches a fixing pressure of the fixing section; a control section that, when the fixing pressure is switched by the switching section from a first fixing pressure to a second fixing pressure prior to a predetermined condition being satisfied after the fixing pressure has been switched to the first fixing pressure by the switching section, controls to prohibit image forming on paper corresponding to the second fixing pressure different from the first fixing pressure.Type: GrantFiled: June 13, 2011Date of Patent: March 25, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Shinya Watanabe, Tetsuya Sonoda, Hirotaka Udagawa
-
Publication number: 20140076878Abstract: A heater of the present invention includes jointed heat generating resistors having a positive temperature characteristic of resistance and provided between a first conductive element and a second conductive element on a substrate in a longitudinal direction of the substrate, and a plurality of heating blocks provided in the longitudinal direction, each of which is a set of the first conductive element, the second conductive element, and the heat generating resistor, and power supplied to at least one of the plurality of heating blocks can be controlled independent of other heating blocks.Type: ApplicationFiled: September 17, 2013Publication date: March 20, 2014Applicant: CANON KABUSHIKI KAISHAInventor: Yasuhiro Shimura
-
Patent number: 8669495Abstract: The heating apparatus comprises a substrate extending in one direction and a plurality of heat generating members provided on one surface of the substrate along a longitudinal direction thereof and wherein at least one of the plural heat generating members has heat generating regions having different heat generation amount per unit length in the longitudinal direction, substrate reinforcing members are provided on the other surface of the substrate in correspondence to the high heat generating regions provided on one surface of the substrate. By the virtue of the invention, cost can be reduced, emergency safety upon occurrence of overrun of a CPU can be achieved, and increase in temperature of a sheet non-passing portion can be suppressed.Type: GrantFiled: February 5, 2007Date of Patent: March 11, 2014Assignee: Canon Kabushiki KaishaInventors: Tomoyuki Makihira, Masafumi Maeda
-
Publication number: 20140061181Abstract: A sheet heater that includes a sheet article composed of a conductive resin composition containing a conductive material and a resin, and a pair of metal plate electrodes, each of the electrodes being bonded to each of the ends of the sheet article, wherein when elements of the sheet article are detected at a portion 1 ?m depth from a surface of the metal plate electrode, a peak area ratio of silicon (Si) to metal ion (M) is 1/100 to 1, the metal ion M being most abundant of all metal ions detected at the portion, the peaks being obtained by measuring an X ray generated at the portion by applying an X ray to the portion with the scanning electron microscope-energy dispersive X-ray spectrometer.Type: ApplicationFiled: August 14, 2013Publication date: March 6, 2014Applicant: Konica Minolta, Inc.Inventors: Susumu SUDO, Eiichi YOSHIDA, Izumi MUKOYAMA, Junji UJIHARA
-
Patent number: 8666268Abstract: The present invention provides a fixing device that can interrupt power supply to the resistive heat layer more reliably than the conventional technology, for example, at occurrence of abnormality. Electrodes 52a and 52b are provided on a circumferential surface of a fixing roller that includes a resistive heat layer that generates heat by receiving power supply, and power is supplied to the resistive heat layer when power supplying electrodes 54a and 54b that are electrically connected to an electric power source 55 are slidingly in contact with the electrodes 52a and 52b. An insulating tape 522a is attached on the electrode 52a, and the drive controller 59 rotates a motor 58 until the electrode 52a and the insulating tape 522a are in contact with each other, so that power supply to the resistive heat layer is interrupted.Type: GrantFiled: May 18, 2011Date of Patent: March 4, 2014Assignee: Konica Minolta Business Technologies, IncInventors: Isao Watanabe, Yasuhiro Ishihara, Toshiaki Tanaka, Kosuke Sasaki, Naoki Ohashi
-
Patent number: 8660414Abstract: A thermal processor including a rotatable hollow drum including a drum core having an interior surface and an exterior surface, and a radiant heater positioned within an interior of the drum and configured to provide radiant energy to heat the drum, wherein at least one radiant energy absorption characteristic of the interior of the drum varies across its longitudinal width Wd so that selected areas of the interior of the drum absorb more radiant energy than other areas of the interior of the drum so as to compensate for non-uniform heat loss from the drum and to provide the exterior surface of the drum core at a desired temperature which is substantially uniform across the longitudinal width of the drum core.Type: GrantFiled: June 7, 2011Date of Patent: February 25, 2014Assignee: Carestream Health, Inc.Inventors: Robert R. Brearey, John T. Olson, Kent R. Struble
-
Patent number: 8653422Abstract: The heater is capable of improving heat generation uniformity in a sheet feeding area while suppressing the temperature rise of a non-sheet feeding portion. Each of heat generation lines includes a plurality of heat blocks in which a plurality of heat generating resistors are electrically connected in parallel between two conductive members. The heat generation lines are arranged in a lateral direction of the substrate, and the heat blocks are arranged so that the end of the heat block in the heat generation line of a first row does not overlap with the end of the heat block in the heat generation line of a second row in a longitudinal direction of a heater.Type: GrantFiled: September 3, 2010Date of Patent: February 18, 2014Assignee: Canon Kabushiki KaishaInventors: Yasuhiro Shimura, Koji Nihonyanagi
-
Patent number: 8649721Abstract: A surface processing apparatus includes a heating unit and a detachably mountable film cartridge. The film cartridge is provided with a first opening portion into which the heating unit proceeds, and an operational portion disposed in a casing, for acting on a shutter of the heating unit to move the shutter between a closing position (first position) and an opening position (second position). The heating unit proceeds into the casing through the first opening portion with the shutter being in the closing position, and the operational portion acts on the shutter in the casing to move the shutter to the opening position.Type: GrantFiled: March 22, 2012Date of Patent: February 11, 2014Assignee: Canon Kabushiki KaishaInventor: Hideaki Kosasa
-
Patent number: 8642927Abstract: The image heating apparatus includes first and second lines having a first and second heat generation blocks, the first and second lines being disposed at different positions in a transverse direction, wherein the first and second lines are arranged so that a whole of first heat generation block in the first line and a whole of second heat generation block in the second line overlap with each other in the longitudinal direction, and a whole of second heat generation block in the first line and a whole of first heat generation block in the second line overlap with each other in the longitudinal direction. By the virtue of the present invention, it achieves to be capable of suppressing a temperature rise in a non-sheet feeding area in a case of printing a sheet smaller in size than a maximum size supported by the image heating apparatus.Type: GrantFiled: December 10, 2010Date of Patent: February 4, 2014Assignee: Canon Kabushiki KaishaInventor: Yasuhiro Shimura
-
Patent number: 8644747Abstract: A heating device including a heating member that heats a recording medium; a pressure unit that applies pressure to the heating member; and a rotation member that is mounted to the heating member. The rotation member is rotated upon receiving an external force and the heating member is rotated along with a rotation of the rotation member by a frictional force between the heating member and the rotation member.Type: GrantFiled: May 19, 2011Date of Patent: February 4, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Tahei Nakamura, Yuki Kubota, Yasutaka Gotoh
-
Patent number: 8634740Abstract: A fixing device includes an endless belt with a resistance heating layer, a pressure roller fitting loosely in a belt circulation path, and a pressing roller pressing the pressure roller through the belt to form a fixing nip with a belt surface, and thermally fixes an unfixed image by passing a recording sheet through the fixing nip, comprises: a pair of annular electrodes provided circumferentially and sandwiching a sheet-passing region of the belt surface; a first power supply member pressurizing a given one of the electrodes; and a second power supply member positioned closer to the fixing nip than the first power supply member, also pressurizing the given one of the electrodes, and supplying power to the resistance heating layer in cooperation with the first power supply member, wherein the pressing force applied by the first power supply member is weaker than that applied by the second power supply member.Type: GrantFiled: May 25, 2012Date of Patent: January 21, 2014Assignee: Konica Minolta Business Technologies, Inc.Inventor: Toshiyuki Sakai
-
Patent number: 8628188Abstract: The invention provides an apparatus including: a rotatable belt having an outer surface and an inner surface, the outer surface partially coming into contact with a sheet; a plurality of rollers being arranged in a direction of movement of the sheet and including a first roller and a second roller adjacent to each other, the plurality of rollers being pressed against the outer surface and the moving sheet being nipped between the plurality of rollers and the outer surface; a blowing mechanism configured to blow hot air from between the first roller and the second roller toward the sheet; and a heating unit including a heater and a contact surface coming into contact with the inner surface, the heating unit being configured to be able to set the contact surface thereof to have a predetermined non-uniform temperature distribution.Type: GrantFiled: December 7, 2010Date of Patent: January 14, 2014Assignee: Canon Kabushiki KaishaInventors: Toshiaki Tokisawa, Yoshiaki Suzuki, Kanto Kurasawa, Toshihide Wada
-
Patent number: 8626046Abstract: The image heating apparatus includes a rubber layer and a resin tube layer on a metal core. The rubber layer includes a solid rubber layer having a thermal conductivity in a thickness direction of 0.16 W/(m·K) or more and 0.40 W/(m·K) or less, and a self-bonded silicone rubber layer that contains a filler of 5 vol % or more and 40 vol % or less, and has a thermal conductivity in an axial direction of 2.5 W/(m·K) or more and a thickness of 0.5 mm or more and 5.0 mm or less, the filler having a length of 0.05 mm or more and 1 mm or less and a thermal conductivity in a length direction of 500 W/(m·K) or more, so that a pressure roller to moderate temperature rise in a non-sheet feeding area when a small sized recording material has undergone sheet feeding can be easily manufactured.Type: GrantFiled: December 24, 2009Date of Patent: January 7, 2014Assignee: Canon Kabushiki KaishaInventors: Yuko Sekihara, Norio Hashimoto, Hiroaki Sakai, Hiroyuki Sakakibara, Atsushi Iwasaki, Kazuo Kishino, Masaaki Takahashi, Katsuhisa Matsunaka
-
Publication number: 20140003848Abstract: To provide a heater that can reduce fixing failure in a paper passing area while suppressing a temperature rise in a sheet non-passing area, and a fixing apparatus including the heater. Resistors are connected in parallel between two conductive patterns that are provided on a heater substrate along the longitudinal direction of the substrate, and resistors are arranged so that the shortest current path of each of the resistors can overlap the shortest current path of an adjacent resistor in the longitudinal direction of the substrate.Type: ApplicationFiled: September 3, 2013Publication date: January 2, 2014Applicant: CANON KABUSHIKI KAISHAInventor: Hiroyuki Sakakibara
-
Patent number: 8616878Abstract: A heat-sensitive adhesive label manufacturing device has a thermal head for heating and thermally activating the heat-sensitive adhesive layer of a heat-sensitive adhesive sheet, and a platen roller for conveying the heat-sensitive adhesive sheet between the platen roller and the thermal head to transport the heat-sensitive adhesive sheet in a transport direction. At least one discharge roller is disposed on a downstream side of the thermal activation section and is configured to undergo rotation at a peripheral speed different from a peripheral speed of the platen roller to convey the heat-sensitive adhesive sheet in the transport direction. A guide member is disposed opposite and spaced apart from the at least one discharge roller to provide a space therebetween along which the heat-sensitive adhesive sheet is conveyed by the at least one discharge roller without being sandwiched between the at least one discharge roller and the guide member.Type: GrantFiled: December 3, 2009Date of Patent: December 31, 2013Assignee: Seiko Instruments Inc.Inventors: Yoshinori Sato, Norimitsu Sanbongi, Minoru Hoshino, Shuji Tozaki
-
Publication number: 20130328961Abstract: An inkjet offset printer includes a heated drum assembly having a hollow drum with an internal surface defining an internal cavity and a heater and a cooler located in the internal cavity. The heater includes at least one ceramic heater element. The cooler includes a slot to direct an air stream to the internal surface of the drum and aids in quenching the heating element for faster control responses.Type: ApplicationFiled: June 6, 2012Publication date: December 12, 2013Applicant: XEROX CORPORATIONInventors: Roger G. Leighton, Michael F. Leo, Venkata B. Chivukula
-
Patent number: 8602955Abstract: A furnace roller assembly is provided with a helically shaped shaft-offset and metal product contact surface assembly wound around a furnace roller shaft. A corebuster may be provided within the furnace roller shaft to direct the flow of a coolant within the axial length of the furnace roller shaft and through a cooling element forming a part of the shaft-offset and metal contact surface assembly.Type: GrantFiled: March 16, 2010Date of Patent: December 10, 2013Assignee: Andritz Bricmont Inc.Inventor: Patrick H. Bryan
-
Patent number: 8600254Abstract: A fixing device includes a fixing belt including a metal layer, a pressing member to form a nip between the pressing member and the fixing belt, an induction current generating coil that faces an outer periphery of the fixing belt, and heats the fixing belt located at a nip position through a hollow inside of the fixing belt, and a coil controller supplies a high frequency to the induction current generating coil.Type: GrantFiled: May 10, 2011Date of Patent: December 3, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Satoshi Kinouchi, Toshihiro Sone, Ryota Saeki