公开(公告)号：DE69032762D1

公开(公告)日：1998-12-17

申请号：DE69032762

申请日：1990-07-27

Applicant: CANON KK

Inventor： OHNO MANABU ,  OCHI HISAYUKI ,  KUWASHIMA TETSUHITO ,  SUEMATSU HIROYUKI ,  IMAI EIICHI ,  TAKIGUCHI TSUYOSHI ,  TOMIYAMA KOICHI ,  KUKIMOTO TSUTOMU ,  YUSA HIROSHI

IPC: G03G15/02 ,  G03G9/08 ,  G03G9/083 ,  G03G9/087 ,  G03G9/097 ,  G03G13/02 ,  G03G13/09 ,  G03G15/08 ,  H04N1/29 ,  G03G9/16 ,  G03G15/09

Abstract: An image forming apparatus includes a member to be charged for carrying an electrostatic image, a contact-charging means for charging the member to be charged in contact with the member to be charged, and a developing means for developing the electrostatic image carried on the member to be charged. The developing means includes a developer for developing the electrostatic image comprising a toner and hydrophobic inorganic fine powder. The hydrophobic inorganic fine powder not only improves the fluidity of the developer and adjusts the chargeability of the developer but also prevents difficulties due to interaction between the member to be charged and the contact charging means in the presence of residual developer, such as damages of the member to be charged and toner-sticking onto the member to be charged.

公开(公告)号：HK150396A

公开(公告)日：1996-08-16

申请号：HK150396

申请日：1996-08-08

Applicant: CANON KK

Inventor： OHNO MANABU ,  OCHI HISAYUKI ,  KUWASHIMA TETSUHITO ,  SUEMATSU HIROYUKO ,  IMAI EIICHI ,  TAKIGUCHI TSUYOSHI ,  TOMIYAMA KOICHI ,  KUKIMOTO TSUTOMU ,  YUSA HIROSHI

IPC: G03G15/02 ,  G03G9/08 ,  G03G9/083 ,  G03G9/087 ,  G03G9/097 ,  G03G13/02 ,  G03G13/09 ,  G03G15/08 ,  H04N1/29 ,  G03G15/09 ,  G03B9/08 ,  G03G9/16

Abstract: An image forming apparatus includes a member to be charged for carrying an electrostatic image, a contact-charging means for charging the member to be charged in contact with the member to be charged, and a developing means for developing the electrostatic image carried on the member to be charged. The developing means includes a developer for developing the electrostatic image comprising a toner and hydrophobic inorganic fine powder. The hydrophobic inorganic fine powder not only improves the fluidity of the developer and adjusts the chargeability of the developer but also prevents difficulties due to interaction between the member to be charged and the contact charging means in the presence of residual developer, such as damages of the member to be charged and toner-sticking onto the member to be charged.

公开(公告)号：ES2074499T3

公开(公告)日：1995-09-16

申请号：ES90114485

申请日：1990-07-27

Applicant: CANON KK

Inventor： OHNO MANABU ,  OCHI HISAYUKI ,  KUWASHIMA TETSUHITO ,  SUEMATSU HIROYUKI ,  IMAI EIICHI ,  TAKIGUCHI TSUYOSHI ,  TOMIYAMA KOICHI ,  KUKIMOTO TSUTOMU ,  YUSA HIROSHI

IPC: G03G15/02 ,  G03G9/08 ,  G03G9/083 ,  G03G9/087 ,  G03G9/097 ,  G03G13/02 ,  G03G13/09 ,  G03G15/08 ,  H04N1/29 ,  G03G15/09 ,  G03G9/16

Abstract: An image forming apparatus includes a member to be charged for carrying an electrostatic image, a contact-charging means for charging the member to be charged in contact with the member to be charged, and a developing means for developing the electrostatic image carried on the member to be charged. The developing means includes a developer for developing the electrostatic image comprising a toner and hydrophobic inorganic fine powder. The hydrophobic inorganic fine powder not only improves the fluidity of the developer and adjusts the chargeability of the developer but also prevents difficulties due to interaction between the member to be charged and the contact charging means in the presence of residual developer, such as damages of the member to be charged and toner-sticking onto the member to be charged.

公开(公告)号：DE3530909A1

公开(公告)日：1986-03-13

申请号：DE3530909

申请日：1985-08-29

Applicant: CANON KK

Inventor： IMAI EIICHI ,  SAKASHITA KIICHIRO ,  TAKAGI SEIICHI ,  KUKIMOTO TSUTOMU

IPC: G03G9/087 ,  G03G9/097 ,  G03G9/08 ,  G03G9/14

Abstract: A dry developer for developing electrostatic images comprises (a) toner particles comprising 100 parts by weight of a binder resin and 1-20 parts by weight of polyalkylene having a ratio of weight average molecular weight to number average molecular weight of 2.0-10.0 and Z average molecular weight determined by gel permeation chromatography of 10,000-200,000, and containing 5-60% by weight of a component soluble in n-hexane at boiling point, kinetic friction coefficient of the toner particles being 0.20-0.50, and (b) non-magnetic inorganic fine powders having BET specific surface area according to a nitrogen adsorbing method of 0.5-500 m2/g. An image forming method comprises using the dry developer to develop electrostatic latent images on a photosensitive member having a surface hardness of 8 g or more, transferring the developed images to a receiving member, and removing the toner particles remaining on the photosensitive member by a cleaning means accompanying abrasion.

公开(公告)号：GB2159970A

公开(公告)日：1985-12-11

申请号：GB8510433

申请日：1985-04-24

Applicant: CANON KK

Inventor： SUEMATSU KOSHI ,  IKEDA TAKESHI ,  YAMAMOTO ATSUKO ,  GOTO KOJI ,  IMAI EIICHI

IPC: G03G9/08 ,  G03G15/08 ,  G03G9/087 ,  G03G9/097 ,  G03G13/08

Abstract: A substantially nonmagnetic toner comprising a colorant and a binder comprising a homopolymer or copolymer having a ratio (Mw/Mn) of a weight-average molecular weight (Mw) of a number average molecular weight (Mn) of less than 5.0 is formed in a thin layer on a toner carrying member. The layer of toner is carried to a developing zone at which an image bearing member is disposed to face the toner carrying member with a clearance larger than the toner layer thickness and an electrostatic image on the image bearing member is developed with the thin layer of toner. The toner binder resin preferably comprises a copolymer of a vinyl monomer and an amonoacrylic monomer.

公开(公告)号：DE3315005A1

公开(公告)日：1983-10-27

申请号：DE3315005

申请日：1983-04-26

Applicant: CANON KK

Inventor： MURAKAWA KAZUNORI ,  MITSUHASHI YASUO ,  UCHIDE HITOSHI ,  TAKAGI SEIICHI ,  UCHIYAMA MASAKI ,  OCHI HISAYUKI ,  URAWA MOTOO ,  IMAI EIICHI

IPC: C09D5/23 ,  G03G9/083 ,  G03G9/097 ,  G03G9/14

公开(公告)号：DE69032762T2

公开(公告)日：1999-05-20

申请号：DE69032762

申请日：1990-07-27

Applicant: CANON KK

Inventor： OHNO MANABU ,  OCHI HISAYUKI ,  KUWASHIMA TETSUHITO ,  SUEMATSU HIROYUKI ,  IMAI EIICHI ,  TAKIGUCHI TSUYOSHI ,  TOMIYAMA KOICHI ,  KUKIMOTO TSUTOMU ,  YUSA HIROSHI

IPC: G03G15/02 ,  G03G9/08 ,  G03G9/083 ,  G03G9/087 ,  G03G9/097 ,  G03G13/02 ,  G03G13/09 ,  G03G15/08 ,  H04N1/29 ,  G03G9/16 ,  G03G15/09

Abstract: An image forming apparatus includes a member to be charged for carrying an electrostatic image, a contact-charging means for charging the member to be charged in contact with the member to be charged, and a developing means for developing the electrostatic image carried on the member to be charged. The developing means includes a developer for developing the electrostatic image comprising a toner and hydrophobic inorganic fine powder. The hydrophobic inorganic fine powder not only improves the fluidity of the developer and adjusts the chargeability of the developer but also prevents difficulties due to interaction between the member to be charged and the contact charging means in the presence of residual developer, such as damages of the member to be charged and toner-sticking onto the member to be charged.

公开(公告)号：SG48355A1

公开(公告)日：1998-04-17

申请号：SG1996009109

申请日：1990-07-27

Applicant: CANON KK

Inventor： IMAI EIICHI ,  KUKIMOTO TSUTOMU ,  KUWASHIMA TETSUHITO ,  OCHI HISAYUKI ,  OHNO MANABU ,  SUEMATSU HIROYUKI ,  TAKUGUCHI TSUYOSHI ,  TOMIYAMA KOICHI ,  YUSA HIROSHI

IPC: G03G9/08 ,  G03G9/083 ,  G03G9/087 ,  G03G9/097 ,  G03G13/02 ,  G03G13/09 ,  G03G15/08 ,  G03G15/02 ,  H04N1/29 ,  G03G9/16 ,  G03G15/09

Abstract: An image forming apparatus includes a member to be charged for carrying an electrostatic image, a contact-charging means for charging the member to be charged in contact with the member to be charged, and a developing means for developing the electrostatic image carried on the member to be charged. The developing means includes a developer for developing the electrostatic image comprising a toner and hydrophobic inorganic fine powder. The hydrophobic inorganic fine powder not only improves the fluidity of the developer and adjusts the chargeability of the developer but also prevents difficulties due to interaction between the member to be charged and the contact charging means in the presence of residual developer, such as damages of the member to be charged and toner-sticking onto the member to be charged.

公开(公告)号：DE69020974T2

公开(公告)日：1995-12-14

申请号：DE69020974

申请日：1990-07-27

Applicant: CANON KK

Inventor： OHNO MANABU ,  OCHI HISAYUKI ,  KUWASHIMA TETSUHITO ,  SUEMATSU HIROYUKI ,  IMAI EIICHI ,  TAKIGUCHI TSUYOSHI ,  TOMIYAMA KOICHI ,  KUKIMOTO TSUTOMU ,  YUSA HIROSHI

IPC: G03G15/02 ,  G03G9/08 ,  G03G9/083 ,  G03G9/087 ,  G03G9/097 ,  G03G13/02 ,  G03G13/09 ,  G03G15/08 ,  H04N1/29 ,  G03G15/09 ,  G03G9/16

Abstract: An image forming apparatus includes a member to be charged for carrying an electrostatic image, a contact-charging means for charging the member to be charged in contact with the member to be charged, and a developing means for developing the electrostatic image carried on the member to be charged. The developing means includes a developer for developing the electrostatic image comprising a toner and hydrophobic inorganic fine powder. The hydrophobic inorganic fine powder not only improves the fluidity of the developer and adjusts the chargeability of the developer but also prevents difficulties due to interaction between the member to be charged and the contact charging means in the presence of residual developer, such as damages of the member to be charged and toner-sticking onto the member to be charged.

公开(公告)号：DE69020974D1

公开(公告)日：1995-08-24

申请号：DE69020974

申请日：1990-07-27

Applicant: CANON KK

Inventor： OHNO MANABU ,  OCHI HISAYUKI ,  KUWASHIMA TETSUHITO ,  SUEMATSU HIROYUKI ,  IMAI EIICHI ,  TAKIGUCHI TSUYOSHI ,  TOMIYAMA KOICHI ,  KUKIMOTO TSUTOMU ,  YUSA HIROSHI

IPC: G03G15/02 ,  G03G9/08 ,  G03G9/083 ,  G03G9/087 ,  G03G9/097 ,  G03G13/02 ,  G03G13/09 ,  G03G15/08 ,  H04N1/29 ,  G03G15/09 ,  G03G9/16

Abstract: An image forming apparatus includes a member to be charged for carrying an electrostatic image, a contact-charging means for charging the member to be charged in contact with the member to be charged, and a developing means for developing the electrostatic image carried on the member to be charged. The developing means includes a developer for developing the electrostatic image comprising a toner and hydrophobic inorganic fine powder. The hydrophobic inorganic fine powder not only improves the fluidity of the developer and adjusts the chargeability of the developer but also prevents difficulties due to interaction between the member to be charged and the contact charging means in the presence of residual developer, such as damages of the member to be charged and toner-sticking onto the member to be charged.