JPS57181569A - Developing device for electrostatic latent image - Google Patents

Developing device for electrostatic latent image

Info

Publication number
JPS57181569A
JPS57181569A JP6648881A JP6648881A JPS57181569A JP S57181569 A JPS57181569 A JP S57181569A JP 6648881 A JP6648881 A JP 6648881A JP 6648881 A JP6648881 A JP 6648881A JP S57181569 A JPS57181569 A JP S57181569A
Authority
JP
Japan
Prior art keywords
layer
toner
developing device
holding member
developer holding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP6648881A
Other languages
Japanese (ja)
Other versions
JPH0410635B2 (en
Inventor
Hajime Koyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP6648881A priority Critical patent/JPS57181569A/en
Publication of JPS57181569A publication Critical patent/JPS57181569A/en
Publication of JPH0410635B2 publication Critical patent/JPH0410635B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
    • G03G15/0818—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the structure of the donor member, e.g. surface properties
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/06—Developing structures, details
    • G03G2215/0602—Developer
    • G03G2215/0604—Developer solid type
    • G03G2215/0614—Developer solid type one-component
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/06—Developing structures, details
    • G03G2215/0634—Developing device
    • G03G2215/0636—Specific type of dry developer device
    • G03G2215/0641—Without separate supplying member (i.e. with developing housing sliding on donor member)

Abstract

PURPOSE:To obtain sharp images of high density having no developing irregularity by forming a developer holding member which holds a high resistance toner of a conductive flexible layer and a rigid buffer layer. CONSTITUTION:A developing device 1 is formed of a developer holding member 3 which carries a high resistance toner and a toner hopper 4 which supplies the toner to the member 3. The member 3 is formed of a conductive flexible layer 5, a rigid buffer layer 6 provided thereunder and a shaft 7. The layer 6 is formed of a material softer, that is, low in hardness than the flexible material on the outer side thereof. It is possible to increase the elasticiy of the layer 5 without degrading the conductivity over the entire part of the layer by using the developer holding member formed in this way. Therefore, the sharp images of high density having sharp images are obtained.
JP6648881A 1981-05-01 1981-05-01 Developing device for electrostatic latent image Granted JPS57181569A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6648881A JPS57181569A (en) 1981-05-01 1981-05-01 Developing device for electrostatic latent image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6648881A JPS57181569A (en) 1981-05-01 1981-05-01 Developing device for electrostatic latent image

Publications (2)

Publication Number Publication Date
JPS57181569A true JPS57181569A (en) 1982-11-09
JPH0410635B2 JPH0410635B2 (en) 1992-02-25

Family

ID=13317224

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6648881A Granted JPS57181569A (en) 1981-05-01 1981-05-01 Developing device for electrostatic latent image

Country Status (1)

Country Link
JP (1) JPS57181569A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63100482A (en) * 1986-02-19 1988-05-02 Ricoh Co Ltd Toner carrier
JPS6466675A (en) * 1987-09-08 1989-03-13 Tokai Rubber Ind Ltd Conductive roll
JPH01103857U (en) * 1987-12-28 1989-07-13
JPH01178983A (en) * 1987-12-29 1989-07-17 Tokyo Electric Co Ltd Developing device
JPH01191879A (en) * 1988-01-27 1989-08-01 Toshiba Corp Developing device
JPH01252979A (en) * 1988-03-31 1989-10-09 Toshiba Corp Developing device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63100482A (en) * 1986-02-19 1988-05-02 Ricoh Co Ltd Toner carrier
JPS6466675A (en) * 1987-09-08 1989-03-13 Tokai Rubber Ind Ltd Conductive roll
JPH01103857U (en) * 1987-12-28 1989-07-13
JPH01178983A (en) * 1987-12-29 1989-07-17 Tokyo Electric Co Ltd Developing device
JPH01191879A (en) * 1988-01-27 1989-08-01 Toshiba Corp Developing device
JPH01252979A (en) * 1988-03-31 1989-10-09 Toshiba Corp Developing device

Also Published As

Publication number Publication date
JPH0410635B2 (en) 1992-02-25

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