JPS56158341A - Developer - Google Patents

Developer

Info

Publication number
JPS56158341A
JPS56158341A JP16419980A JP16419980A JPS56158341A JP S56158341 A JPS56158341 A JP S56158341A JP 16419980 A JP16419980 A JP 16419980A JP 16419980 A JP16419980 A JP 16419980A JP S56158341 A JPS56158341 A JP S56158341A
Authority
JP
Japan
Prior art keywords
developer
powder
component
hopper
arrow
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.)
Pending
Application number
JP16419980A
Other languages
Japanese (ja)
Inventor
Yuzo Omuro
Jinichi Kamogawa
Shigeru Uetake
Yoshio Yamazaki
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP16419980A priority Critical patent/JPS56158341A/en
Publication of JPS56158341A publication Critical patent/JPS56158341A/en
Pending 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
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
    • G03G15/0914—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush with a one-component toner

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE:To obtain a developer having the advantages of one-component development and capable of forming a sharp image on common paper by using fine ferromagnetic powder with specified specific resistance and a specified potential attenuation rate as a principal component. CONSTITUTION:This developer contains fine ferromagnetic powder as a principal component with >=10<14>OMEGA.cm specific resistance and <50% rate of attenuating the potential of the developer measured by a predetermined measuring method. In order to obtain said quantity of charges, it is required to select the combination of the used resin with the powder and the way of exposing the powder. An aid such as silica for enhancing the fluidity may be added. When development is carried out using said one-component developer made of toner alone, the developer is put into a hopper 1, and by rotating a nonmagnetic sleevelike rotating member 3 set under the opening of the hopper as an outer tube for a group of fixed magnets 2 in the arrow 4 direction, a toner layer 5 is formed while holding the developer on the member 3 by magnetic force. At the position of a main magnet 6 the layer 5 is brought into contact with a member 8 supporting an electrostatic latent image and moving the arrow 7 direction.
JP16419980A 1980-11-21 1980-11-21 Developer Pending JPS56158341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16419980A JPS56158341A (en) 1980-11-21 1980-11-21 Developer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16419980A JPS56158341A (en) 1980-11-21 1980-11-21 Developer

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP51023600A Division JPS5944627B2 (en) 1976-03-03 1976-03-03 Image forming method

Publications (1)

Publication Number Publication Date
JPS56158341A true JPS56158341A (en) 1981-12-07

Family

ID=15788552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16419980A Pending JPS56158341A (en) 1980-11-21 1980-11-21 Developer

Country Status (1)

Country Link
JP (1) JPS56158341A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045639A (en) * 1973-08-27 1975-04-23
JPS5062638A (en) * 1973-10-04 1975-05-28
JPS50117432A (en) * 1974-02-16 1975-09-13

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045639A (en) * 1973-08-27 1975-04-23
JPS5062638A (en) * 1973-10-04 1975-05-28
JPS50117432A (en) * 1974-02-16 1975-09-13

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