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    Toner und bilderzeugendes Verfahren
    5.
    发明专利
    Toner und bilderzeugendes Verfahren 未知

    公开(公告)号：DE112014003520T5

    公开(公告)日：2016-04-14

    申请号：DE112014003520

    申请日：2014-07-30

    Applicant: CANON KK

    Inventor： HOTTA YOJIRO ,  TSUDA SHOHEI ,  KATSURA TAIJI ,  MIURA MASAHARU ,  BABA YOSHINOBU ,  ITAKURA TAKAYUKI

    IPC: G03G9/08 ,  G03G5/05 ,  G03G5/147 ,  G03G15/08

    Abstract: Ein Toner wird bereitgestellt, wobei eine gute Reinigungsfähigkeit vorgewiesen wird, die Abriebschwankungen der Photoleiteroberfläche reduziert werden, und die Kontamination eines Ladungselements reduziert wird. Der Toner beinhaltet Tonerteilchen und organisch-anorganische Kompositfeinteilchen auf den Tonerteilchenoberflächen, wobei jedes der organisch-anorganischen Kompositfeinteilchen ein Teilchen ist, in welchem anorganische Feinteilchen an den Oberflächen von vinylbasierten Harzteilchen auf solch eine Art und Weise exponiert sind, das konvexe Abschnitte, die von den anorganischen Feinteilchen abstammen, auf den Oberflächen gebildet werden, wobei die durchschnittliche Zirkularität des Toners 0,960 oder mehr ist, und der absolute Wert Q der Triboelektrizitätsmenge des Toner, der mittels eines zwei-komponenten Verfahrens gemessen ist, und die elektrostatische Adhäsion F des Toners 0,003 ≤ F/Q2 ≤ 0,040 erfüllen.

    6.
    发明专利
    未知

    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

    IPC: G03G9/08 ,  G03G9/113 ,  G03G9/107

    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.

    7.
    发明专利
    未知

    公开(公告)号：DE69706353T2

    公开(公告)日：2002-05-29

    申请号：DE69706353

    申请日：1997-04-07

    Applicant: CANON KK

    Inventor： BABA YOSHINOBU ,  IKEDA TAKESHI ,  SATO YUKO ,  ITABASHI HITOSHI ,  TOKUNAGA YUZO

    IPC: G03G9/08 ,  G03G9/10 ,  G03G9/107 ,  G03G9/113

    Abstract: A magnetic coated carrier suitable for constituting a two-component type developer for use in electrophotography is composed of magnetic coated carrier particles comprising magnetic coated carrier particles comprising magnetic carrier core particles each comprising a binder resin and metal oxide particles, and a coating layer surface-coating each carrier core particle. The metal oxide particles have been subjected to a surface lipophilicity-imparting treatment. The magnetic carrier core particles have a resistivity of at least 1x10 ohm.cm, and the magnetic coated carrier has a resistivity of at least 1x10 ohm.cm. The magnetic coated carrier has a particle size distribution such that (i) it has a number-average particle size Dn of 5 - 100 mu m, (ii) it satisfies a relationship of Dn/ sigma >/= 3.5, wherein sigma denotes a standard deviation of number-basis particle size distribution of the carrier, and (iii) it contains at least 25 % by number of particles having particle sizes of at most Dn x 2/3.

    8.
    发明专利
    未知

    公开(公告)号：DE69706352T2

    公开(公告)日：2002-04-25

    申请号：DE69706352

    申请日：1997-04-07

    Applicant: CANON KK

    Inventor： BABA YOSHINOBU ,  SATO YUKO ,  TOKUNAGA YUZO ,  IKEDA TAKESHI ,  ITABASHI HITOSHI

    IPC: G03G9/10 ,  G03G9/107 ,  G03G9/113

    Abstract: A magnetic coated carrier suitable for constituting a two-component type developer for use in electrophotography is composed of magnetic coated carrier particles comprising magnetic carrier core particles and a resinous surface coated layer coating the magnetic carrier core particles. The carrier is suitably constituted so as to satisfy the condition of: (a) the magnetic carrier core particles has a resistivity of at least 1x10 ohm.cm, and the magnetic coated carrier has a resistivity of at least 1x10 ohm.cm, (b) the magnetic coated carrier has a number-average particle size of 1- 100 mu m and has such a particle size distribution that particles having particle sizes of at most a half of the number-average particle size occupy an accumulative percentage of at most 20 % by number, (c) the magnetic coated carrier has a shape factor SF-1 of 100 - 130, (d) the magnetic coated carrier has a magnetization at 1 kilo-oersted of 40 - 250 emu/cm , and (e) the resinous surface coating layer comprises a coating resin composition which in turn comprises a straight silicone resin and a coupling agent. The straight silicone resin includes trifunctional silicon and difunctional silicon in an atomic ratio of 100:0 - 40:60.

    9.
    发明专利
    未知

    公开(公告)号：DE69706352D1

    公开(公告)日：2001-10-04

    申请号：DE69706352

    申请日：1997-04-07

    Applicant: CANON KK

    Inventor： BABA YOSHINOBU ,  SATO YUKO ,  TOKUNAGA YUZO ,  IKEDA TAKESHI ,  ITABASHI HITOSHI

    IPC: G03G9/10 ,  G03G9/107 ,  G03G9/113

    Abstract: A magnetic coated carrier suitable for constituting a two-component type developer for use in electrophotography is composed of magnetic coated carrier particles comprising magnetic carrier core particles and a resinous surface coated layer coating the magnetic carrier core particles. The carrier is suitably constituted so as to satisfy the condition of: (a) the magnetic carrier core particles has a resistivity of at least 1x10 ohm.cm, and the magnetic coated carrier has a resistivity of at least 1x10 ohm.cm, (b) the magnetic coated carrier has a number-average particle size of 1- 100 mu m and has such a particle size distribution that particles having particle sizes of at most a half of the number-average particle size occupy an accumulative percentage of at most 20 % by number, (c) the magnetic coated carrier has a shape factor SF-1 of 100 - 130, (d) the magnetic coated carrier has a magnetization at 1 kilo-oersted of 40 - 250 emu/cm , and (e) the resinous surface coating layer comprises a coating resin composition which in turn comprises a straight silicone resin and a coupling agent. The straight silicone resin includes trifunctional silicon and difunctional silicon in an atomic ratio of 100:0 - 40:60.

    10.
    发明专利
    未知

    公开(公告)号：DE69416992T2

    公开(公告)日：1999-08-26

    申请号：DE69416992

    申请日：1994-12-23

    Applicant: CANON KK

    Inventor： MAYAMA SHINYA ,  SATO YUKO ,  AOTO HIROSHI ,  ITABASHI HITOSHI ,  IKEDA TAKESHI ,  BABA YOSHINOBU ,  HAYASHI YASUKO ,  TOKUNAGA YUZO

    IPC: G03G9/08 ,  G03G9/10 ,  G03G9/107 ,  G03G9/113 ,  G03G15/08 ,  G03G15/09

    Abstract: A carrier for use in electrophotography has carrier particles. The carrier particles each comprise a carrier core particle and a resin for coating the carrier core particle and having a resistivity of 10 OMEGA .cm or above under conditions of a temperature of 23 DEG C and a humidity of 50%RH. The carrier particles have an average particle diameter of not larger than 100 mu m and a resistivity of 10 OMEGA .cm or above. The carrier particles comprise not less than 80% by number of resin-coated carrier particles whose carrier core particles are each coated with a resin in a coverage of not less than 90%.

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