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公开(公告)号:DE102016003263A1
公开(公告)日:2016-09-29
申请号:DE102016003263
申请日:2016-03-17
Applicant: CANON KK
Inventor: AOKI KENJI , KINUMATSU TETSUYA , KOSAKI YUSUKE , WATANABE SHUNTARO , TOYOIZUMI NORITAKA , KAYA TAKAAKI , TANI ATSUSHI , KASUYA TAKASHIGE
Abstract: Ein Toner, der ein Tonerpartikel umfasst, das ein Bindemittelharz umfasst, welches ein kristallines Harz umfasst, wobei der Toner bei DSC-Messungen des Toners den folgenden Formeln (1) und (2) genügt: 50,0 ≤ Tt ≤ 80,0Formel (1) 0,00 ≤ΔHT't-3/ΔH ≤ 0,20Formel (2)worin Tt [°C] der Temperaturhöchstwert des endothermen Peaks P1 ist, ΔH [J/g] die endotherme Menge von einer Temperatur 20,0°C unterhalb T't bis zu einer Temperatur 10,0°C oberhalb T't ist, wenn T't [°C] der Temperaturhöchstwert des endothermen Peaks P2 ist, und ΔHT't-3 [J/g] die endotherme Menge von einer Temperatur 20,0°C unterhalb T't bis zu einer Temperatur 3,0°C unterhalb T't ist.
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公开(公告)号:DE602004010951D1
公开(公告)日:2008-02-14
申请号:DE602004010951
申请日:2004-04-29
Applicant: CANON KK
Inventor: BABA YOSHINOBU , FUJITA RYOICHI , KAYA TAKAAKI , TERAUCHI KAZUO
Abstract: A magnetic carrier includes a magnetic material-dispersed resin core containing at least a magnetic material and a binder resin. The surface of the magnetic material-dispersed resin core is coated with a coating material containing at least a fluorine resin and 1 to 40 parts by weight of fine particles based on 100 parts by weight of the fluorine resin. The coating material is in an amount of 0.3 to 4.0 parts by weight based on 100 parts by weight of the magnetic material-dispersed resin core. The magnetic carrier has a contact angle of 95 to 125 DEG . A two-component developer is also provided which makes use of the magnetic carrier.
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公开(公告)号:DE602004010951T2
公开(公告)日:2008-12-24
申请号:DE602004010951
申请日:2004-04-29
Applicant: CANON KK
Inventor: BABA YOSHINOBU , FUJITA RYOICHI , KAYA TAKAAKI , TERAUCHI KAZUO
Abstract: A magnetic carrier includes a magnetic material-dispersed resin core containing at least a magnetic material and a binder resin. The surface of the magnetic material-dispersed resin core is coated with a coating material containing at least a fluorine resin and 1 to 40 parts by weight of fine particles based on 100 parts by weight of the fluorine resin. The coating material is in an amount of 0.3 to 4.0 parts by weight based on 100 parts by weight of the magnetic material-dispersed resin core. The magnetic carrier has a contact angle of 95 to 125 DEG . A two-component developer is also provided which makes use of the magnetic carrier.
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公开(公告)号:DE60310456D1
公开(公告)日:2007-02-01
申请号:DE60310456
申请日:2003-01-16
Applicant: CANON KK
Inventor: ITAKURA TAKAYUKI , KOTAKI TAKAAKI , KAYA TAKAAKI , HAYAMI KAZUHIKO , KOMATSU NOZOMU
Abstract: A yellow toner in which, in a spectral-distribution diagram in which the reflectance (%) is plotted as ordinate and the wavelength (nm) as abscissa, the reflectance determined for a toner in a state of powder ranges from 15% to 20% at a wavelength of 500 nm and ranges from 75% to 80% at a wavelength of 600 nm, a cyan toner in which, in the like spectral-distribution diagram, the reflectance determined for a toner in a state of powder ranges from 30% to 35% at a wavelength of 450 nm and ranges from 35% to 40% at a wavelength of 475 nm, and a magenta toner in which, in the like spectral-distribution diagram, the reflectance determined for a toner in a state of powder ranges from 5% to 10% at a wavelength of 425 nm and ranges from 65% to 70% at a wavelength of 675 nm. These color toners each contain corresponding pigments in specific combination, and promise color reproduction which can ensure the color tones of process inks.
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公开(公告)号:DE69830975T2
公开(公告)日:2006-05-24
申请号:DE69830975
申请日:1998-12-23
Applicant: CANON KK
Inventor: OHWAKI HIRONORI , YAMAZAKI KOJI , EHARA TOSHIYUKI , KAWADA MASAYA , KAYA TAKAAKI , KARAKI TETSUYA
Abstract: In a surface potential measuring apparatus for measuring a potential configuration by moving a photosensitive body of an image forming apparatus of electrophotographic type and at least one potential sensor relative to each other and by generating dielectric current in the potential sensor due to change in potential on a surface of the photosensitive body and by analyzing the dielectric current, a width of a detecting portion of the potential sensor is smaller than a width of the change in potential to be measured, and a sectional shape of the detecting portion in a plane perpendicular to the surface of the photosensitive body and parallel to the relative movement direction does not include any edge.
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公开(公告)号:DE69920569T2
公开(公告)日:2005-12-22
申请号:DE69920569
申请日:1999-05-05
Applicant: CANON KK
Inventor: KAYA TAKAAKI , KAWADA MASAYA , KARAKI TETSUYA , EHARA TOSHIYUKI , NAKAYAMA YUJI
IPC: G03G13/04
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公开(公告)号:DE102016003263B4
公开(公告)日:2022-12-08
申请号:DE102016003263
申请日:2016-03-17
Applicant: CANON KK
Inventor: AOKI KENJI , KINUMATSU TETSUYA , KOSAKI YUSUKE , WATANABE SHUNTARO , TOYOIZUMI NORITAKA , KAYA TAKAAKI , TANI ATSUSHI , KASUYA TAKASHIGE
Abstract: Toner, der ein Tonerpartikel umfasst, das ein Bindemittelharz umfasst, wobeidas Bindemittelharz ein kristallines Harz A umfasst,der Toner bei Messung des Toners mit einem Kalorimeter mit Differenzialabtastung (DSC) den folgenden Formeln (1) und (2) genügt:50,0≤Tt≤80,00,00≤ΔHT't−3/ΔH≤0,20wobei in den Formeln (1) und (2)Tt [°C] einen Temperaturhöchstwert eines endothermen Peaks P1angibt, der während eines ersten Temperaturerhöhungsvorgangs vom kristallinen Harz A verursacht wird;ΔH [J/g] eine endotherme Menge angibt, die vom kristallinen Harz A von einer Temperatur 20,0 °C unterhalb von T't bis zu einer Temperatur 10,0 °C oberhalb von T't verursacht wird, wobei T't [°C] ein Temperaturhöchstwert eines endothermen Peaks P2ist, der vom kristallinen Harz A während eines zweiten Temperaturerhöhungsvorgangs verursacht wird; undΔHT't-3[J/g] eine endotherme Menge angibt, die vom kristallinen Harz A von einer Temperatur 20,0 °C unterhalb von T't bis zu einer Temperatur 3,0 °C unterhalb von T't verursacht wird, und wobeidas Tonerpartikel eine Kern-Schale-Struktur aufweist, die aus einem Kern und einer Schalenphase an einer Oberfläche des Kerns zusammengesetzt ist,der Kern das Bindemittelharz umfasst, unddie Schalenphase ein Harz B umfasst;das Harz B, in einem Molekül, ein Segment b1, das von einem kristallinen Harz B1herrührt, und ein Segment b2, das von einem kristallinen Harz B2herrührt, umfasst; unddas Bindemittelharz, das kristalline Harz B1und das kristalline Harz B2den folgenden Formeln (4) und (5) genügen:10,0≤TB2−TA≤30,0−5,0≤TA−TB1≤5,0wobei in den Formeln (4) und (5)TA [°C] einen Temperaturhöchstwert eines endothermen Peaks angibt, der während eines ersten Temperaturerhöhungsvorgangs bei Messung des Bindemittelharzes mit einem DSC vom kristallinen Harz A verursacht wird;TB1[°C] einen Temperaturhöchstwert eines endothermen Peaks während eines ersten Temperaturerhöhungsvorgangs bei Messung des kristallinen Harzes B1mit einem DSC angibt; undTB2[°C] einen Temperaturhöchstwert eines endothermen Peaks während eines ersten Temperaturerhöhungsvorgangs bei Messung des kristallinen Harzes B2mit einem DSC angibt.
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公开(公告)号:DE102015104617A1
公开(公告)日:2015-10-01
申请号:DE102015104617
申请日:2015-03-26
Applicant: CANON KK
Inventor: WATANABE SHUNTARO , KAYA TAKAAKI , MORI TOSHIFUMI , AOKI KENJI , KINUMATSU TETSUYA , KOSAKI YUSUKE , TANI ATSUSHI , KASUYA TAKASHIGE
IPC: G03G9/087
Abstract: Ein Toner weist Tonerteilchen auf, die ein Bindemittelharz enthalten, das ein Blockpolymer als eine Hauptkomponente umfasst, das durch chemisches Binden eines kristallinen Polyesterharzes mit einem amorphen Polyurethanharz erhalten ist, wobei das Bindemittelharz einen spezifischen Gehalt einer kristallinen Polyesterharzkomponente aufweist und eine Konzentration an Esterbindungen, die aus der kristallinen Polyesterharzkomponente abgeleitet sind, von nicht mehr als 5,2 mmol/g aufweist, und der maximale Wert EMAX des Biegeelastizitätsmoduls E in einem Drei-Punkt-Biegeversuch an dem Toner und die Verzerrungsenergie u für den Toner spezifische Werte erfüllen.
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公开(公告)号:DE602004023016D1
公开(公告)日:2009-10-22
申请号:DE602004023016
申请日:2004-01-08
Applicant: CANON KK
Inventor: ITAKURA TAKAYUKI , HAYAMI KAZUHIKO , KAYA TAKAAKI , IIDA WAKASHI , SUGAHARA NOBUYOSHI , HOTTA YOJIRO , KOTAKI TAKAAKI , FUJIKAWA HIROYUKI , KOBORI TAKAKUNI , ISHIGAMI KOH , TANIKAWA HIROHIDE , ICHIKAWA YASUHIRO
Abstract: A toner comprises toner particles. The toner particles comprise binder resin(s), wax, and colorant. The binder region comprises resin made by reaction between an epoxy group of vinyl resin with epoxy group, and a carboxyl group of resin with polyester unit and/or carboxyl group. The toner has storage elastic modulus at 80[deg]C of 1X10 5>-1X10 8> Pa, and at 160[deg]C of 1X10 1>-1X10 4> Pa. An independent claim is included for an image forming apparatus for forming toner image fixed on a recording material comprising toner, unfixed toner image forming mechanism, and toner image fixing mechanism. The fixing mechanism has heater, rotatable endless fixing belt heated by the heater, and pressurizing mechanism pressurizing the fixing belt to form a nip portion where the recording material is nipped between fixing belt and pressurizing mechanism. The fixing belt has tubular metallic conductor and elastic layer covering the outer peripheral surface of the metallic conductor. The heater is for heating the fixing belt by generating eddy current in the fixing belt.
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公开(公告)号:DE69830975D1
公开(公告)日:2005-09-01
申请号:DE69830975
申请日:1998-12-23
Applicant: CANON KK
Inventor: OHWAKI HIRONORI , YAMAZAKI KOJI , EHARA TOSHIYUKI , KAWADA MASAYA , KAYA TAKAAKI , KARAKI TETSUYA
Abstract: In a surface potential measuring apparatus for measuring a potential configuration by moving a photosensitive body of an image forming apparatus of electrophotographic type and at least one potential sensor relative to each other and by generating dielectric current in the potential sensor due to change in potential on a surface of the photosensitive body and by analyzing the dielectric current, a width of a detecting portion of the potential sensor is smaller than a width of the change in potential to be measured, and a sectional shape of the detecting portion in a plane perpendicular to the surface of the photosensitive body and parallel to the relative movement direction does not include any edge.
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