JPS644268A - Powder selection device - Google Patents

Powder selection device

Info

Publication number
JPS644268A
JPS644268A JP62156943A JP15694387A JPS644268A JP S644268 A JPS644268 A JP S644268A JP 62156943 A JP62156943 A JP 62156943A JP 15694387 A JP15694387 A JP 15694387A JP S644268 A JPS644268 A JP S644268A
Authority
JP
Japan
Prior art keywords
powder
magnetic
roll
rolls
fall
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
JP62156943A
Other languages
Japanese (ja)
Inventor
Hiromichi Suzuki
Hideki Okada
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.)
FDK Corp
Original Assignee
FDK Corp
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 FDK Corp filed Critical FDK Corp
Priority to JP62156943A priority Critical patent/JPS644268A/en
Publication of JPS644268A publication Critical patent/JPS644268A/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
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer

Landscapes

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

Abstract

PURPOSE:To enable powder to select in accordance with difference of its surface characteristics, charging or magnetic properties by applying a DC voltage to a magnetic roll and a conductor roll arranged in parallel and causing the powder to be selected to fall from above. CONSTITUTION:A powder supply part 10 causes magnetic powder 16 to fall. In addition, a magnetic roll 12 is rotated supporting its axis in almost horizontally below the powder supply part 10. A conductor roll 14 covered with an insulator on the surface is rotated supporting its axis is the opposite and close position, to the magnetic roll 12. Further, the first and second scraper mechanisms 22, 24 scrape off powder sticking to the rolls 12, 14, and a DC voltage is applied to a part between the rolls 12, 14. As the result, the powder can be selected according to the differences of surface characteristics or charge/ magnetic properties. Thus only powder suited to its use can be efficiently extracted.
JP62156943A 1987-06-24 1987-06-24 Powder selection device Pending JPS644268A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62156943A JPS644268A (en) 1987-06-24 1987-06-24 Powder selection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62156943A JPS644268A (en) 1987-06-24 1987-06-24 Powder selection device

Publications (1)

Publication Number Publication Date
JPS644268A true JPS644268A (en) 1989-01-09

Family

ID=15638735

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62156943A Pending JPS644268A (en) 1987-06-24 1987-06-24 Powder selection device

Country Status (1)

Country Link
JP (1) JPS644268A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5826982A (en) * 1981-08-10 1983-02-17 辰本　韶弘 Cereal drier
JPS6197053A (en) * 1984-10-19 1986-05-15 Fuji Elelctrochem Co Ltd Magnetic classifying apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5826982A (en) * 1981-08-10 1983-02-17 辰本　韶弘 Cereal drier
JPS6197053A (en) * 1984-10-19 1986-05-15 Fuji Elelctrochem Co Ltd Magnetic classifying apparatus

Similar Documents

Publication Publication Date Title
ZA859452B (en) Electrostatic spraying
DE3068703D1 (en) Dielectric liquid composition used in an electrical capacitor
JPS5537769A (en) High voltage dc breaker
JPH08036335A (en) Equipment and method for electric charge control on web
JPS5267353A (en) Electrostatic chuck
JPS5615930A (en) Electrospark machining device
EP0441164A3 (en) Composition and coating to prevent current induced electro-chemical dendrite formation between conductors on dielectric substrate
JPS55130863A (en) Porcelain composition with high dielectric constant
DE3067249D1 (en) Device for controlling the voltage between two conductors of an a.c. supply mains for a rapidly changing load
JPS5629260A (en) Corona charging method in electrophotography or the like
JPS5514798A (en) Circuit device for genetating controlled dc voltage depending on ac voltage
JPS6473367A (en) Contact electrostatic charging device
JPS51151545A (en) Method for applying an electric charge by powder of magnetic material arranged in brush=state
Jakubowski et al. Electrical Properties of the MIS\ Metal/Insulator/Semiconductor\ Capacitor under Illumination
JPS53118136A (en) Transfer method and transfer apparatus
Orletskii Temperature Dependence of the Ratio of Mobilities in Pb 0. 72 Sn 0. 28 Te Solid Solutions
JPS51137833A (en) Oil supply type electric apparatus
Skripka et al. Magnetic Properties of the Selenides of Rare-Earth Elements of the Yt Sub-Group
JPS547335A (en) Transfer paper separating method
JPS5316897A (en) Supporting insulator
GB1555611A (en) High voltage switch for cooking apparatus 29037713092/77
JPS5687062A (en) Charging device
JPS5275666A (en) Electrode for electrolysis
JPS54154436A (en) Cleaning in electrostatic coater and its device
JPS56147160A (en) Electrostatically charging method