GB1149635A - Improved toners - Google Patents

Improved toners

Info

Publication number
GB1149635A
GB1149635A GB15466/66A GB1546666A GB1149635A GB 1149635 A GB1149635 A GB 1149635A GB 15466/66 A GB15466/66 A GB 15466/66A GB 1546666 A GB1546666 A GB 1546666A GB 1149635 A GB1149635 A GB 1149635A
Authority
GB
United Kingdom
Prior art keywords
screen
charge
oscilloscope
april
voltage
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.)
Expired
Application number
GB15466/66A
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.)
SCM Corp
Original Assignee
SCM 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 SCM Corp filed Critical SCM Corp
Publication of GB1149635A publication Critical patent/GB1149635A/en
Expired 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
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/097—Plasticisers; Charge controlling agents
    • G03G9/09708—Inorganic compounds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/0825—Developers with toner particles characterised by their structure; characterised by non-homogenuous distribution of components

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

1,149,635. Measuring charge/mass ratio. SCM CORP. April 6, 1966 [April 13, 1965 (2)], No. 15466/66. Heading G1U. [Also in Division G2] The charge/massratio of electro-photographic toners is determined by placing the toner 26 on a screen 13 connected to a rim 14 and thence to a high voltage supply. The screen 13 is spaced from an electrode 11 bearing an aluminium foil 25 connected in series to conventional electrometer circuit 16, which has a capacitor C in parallel with its input. The output of the electrometer is connected to the phased inputs A and B of an oscilloscope 22. In use, high D.C. is applied to the empty screen 13 with the switch 17 grounded, and then the switch position is changed and the voltage across C noted. The toner powder is then wiped across the screen 13 and the increase in voltage (#V) shown on the oscilloscope is noted. The weight of powder (M) falling on the foil 25 is determined. The charge mass ratio is then given by C#V/M.
GB15466/66A 1965-04-13 1966-04-06 Improved toners Expired GB1149635A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US44775865A 1965-04-13 1965-04-13
US44775965A 1965-04-13 1965-04-13
US63364267A 1967-02-23 1967-02-23
US86608069A 1969-10-03 1969-10-03

Publications (1)

Publication Number Publication Date
GB1149635A true GB1149635A (en) 1969-04-23

Family

ID=27503950

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15466/66A Expired GB1149635A (en) 1965-04-13 1966-04-06 Improved toners

Country Status (3)

Country Link
US (1) US3779926A (en)
DE (1) DE1522618A1 (en)
GB (1) GB1149635A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134760A (en) * 1974-08-26 1979-01-16 Xerox Corporation Tribo modified toner materials via acylation
US4078931A (en) * 1974-08-26 1978-03-14 Xerox Corporation Aminolyzed toner compositions and imaging process using same
US4070186A (en) * 1974-08-26 1978-01-24 Xerox Corporation Tribo modified toner materials via silylation and electrostatographic imaging process
US4248950A (en) * 1975-04-21 1981-02-03 Am International, Inc. Electrostatic developer mix containing either MoS2, TiS2, WS.sub.2
US4943505A (en) * 1984-03-06 1990-07-24 Fuji Xerox Co., Ltd. Developer and toner composition produced by emulsion polymerization
US5192638A (en) * 1984-12-10 1993-03-09 Spectrum Sciences B.V. Toner for use in compositions for developing latent electrostatic images, method of making the same, and liquid composition using the improved toner
JPS6317460A (en) * 1986-07-09 1988-01-25 Kao Corp Toner for developing electrostatic charge image
US4758494A (en) * 1987-02-13 1988-07-19 E. I. Du Pont De Nemours And Company Inorganic metal salt as adjuvant for negative liquid electrostatic developers
US4780389A (en) * 1987-02-13 1988-10-25 E. I. Du Pont De Nemours And Company Inorganic metal salt as adjuvant for negative liquid electrostatic developers
GB9018839D0 (en) * 1990-08-29 1990-10-10 Newton John M Slow release compositions
US6875550B2 (en) 2001-07-11 2005-04-05 Seiko Epson Corporation Non-magnetic single-component toner, method of preparing the same, and image forming apparatus using the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2529566A (en) * 1948-08-17 1950-11-14 Mycalex Corp Of America Glass bonded insulating composition
US2797705A (en) * 1950-10-26 1957-07-02 Virgil L Frantz Valved piping arrangement
US3041169A (en) * 1958-03-28 1962-06-26 Rca Corp Reversal type electrostatic developer powder
US3345294A (en) * 1964-04-28 1967-10-03 American Photocopy Equip Co Developer mix for electrostatic printing

Also Published As

Publication number Publication date
US3779926A (en) 1973-12-18
DE1522618A1 (en) 1969-09-25

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