US3921577A - Magnetic development units - Google Patents

Magnetic development units Download PDF

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Publication number
US3921577A
US3921577A US473651A US47365174A US3921577A US 3921577 A US3921577 A US 3921577A US 473651 A US473651 A US 473651A US 47365174 A US47365174 A US 47365174A US 3921577 A US3921577 A US 3921577A
Authority
US
United States
Prior art keywords
developer
baffle
roll
toner
entrained
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 - Lifetime
Application number
US473651A
Other languages
English (en)
Inventor
Willard L Howard
Thomas A Tietjen
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.)
Xerox Corp
Original Assignee
Xerox 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 Xerox Corp filed Critical Xerox Corp
Priority to US473651A priority Critical patent/US3921577A/en
Priority to NL7505331A priority patent/NL7505331A/nl
Application granted granted Critical
Publication of US3921577A publication Critical patent/US3921577A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
US473651A 1974-05-28 1974-05-28 Magnetic development units Expired - Lifetime US3921577A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US473651A US3921577A (en) 1974-05-28 1974-05-28 Magnetic development units
NL7505331A NL7505331A (nl) 1974-05-28 1975-05-06 Magnetische ontwikkeleenheid.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US473651A US3921577A (en) 1974-05-28 1974-05-28 Magnetic development units

Publications (1)

Publication Number Publication Date
US3921577A true US3921577A (en) 1975-11-25

Family

ID=23880438

Family Applications (1)

Application Number Title Priority Date Filing Date
US473651A Expired - Lifetime US3921577A (en) 1974-05-28 1974-05-28 Magnetic development units

Country Status (2)

Country Link
US (1) US3921577A (nl)
NL (1) NL7505331A (nl)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4092954A (en) * 1977-05-31 1978-06-06 Xerox Corporation High speed tank development system
US4149488A (en) * 1977-02-17 1979-04-17 Siemens Aktiengesellschaft Deflecting guide for developer mixture
US4334760A (en) * 1980-06-18 1982-06-15 Litton Systems, Inc. Toner mechanism for electrophotographic recorder
US4453492A (en) * 1982-08-12 1984-06-12 E. I. Du Pont De Nemours And Company Magnetic developing unit with improved toner decorator for magnetic printing
EP0596640A2 (en) * 1992-11-02 1994-05-11 Xerox Corporation Development housing with simultaneous pickup and trim
US5416571A (en) * 1993-01-05 1995-05-16 Hitachi Koki Co., Ltd. Developing device for electrophotograph-type printer
US5966576A (en) * 1997-07-28 1999-10-12 Eastman Kodak Company Extended development zone apparatus with rotating magnets

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2927554A (en) * 1957-09-23 1960-03-08 Ibm Cascade developing apparatus
US3428025A (en) * 1966-12-27 1969-02-18 Xerox Corp Xerographic development apparatus
US3572289A (en) * 1968-09-23 1971-03-23 Xerox Corp Magnetic brush development apparatus
US3641980A (en) * 1969-10-20 1972-02-15 Xerox Corp Development apparatus
US3649262A (en) * 1968-12-31 1972-03-14 Xerox Corp Simultaneous development-cleaning of the same area of an electrostatographic image support surface
US3724422A (en) * 1970-12-14 1973-04-03 Xerox Corp Magnetic brush developing apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2927554A (en) * 1957-09-23 1960-03-08 Ibm Cascade developing apparatus
US3428025A (en) * 1966-12-27 1969-02-18 Xerox Corp Xerographic development apparatus
US3572289A (en) * 1968-09-23 1971-03-23 Xerox Corp Magnetic brush development apparatus
US3649262A (en) * 1968-12-31 1972-03-14 Xerox Corp Simultaneous development-cleaning of the same area of an electrostatographic image support surface
US3641980A (en) * 1969-10-20 1972-02-15 Xerox Corp Development apparatus
US3724422A (en) * 1970-12-14 1973-04-03 Xerox Corp Magnetic brush developing apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149488A (en) * 1977-02-17 1979-04-17 Siemens Aktiengesellschaft Deflecting guide for developer mixture
US4092954A (en) * 1977-05-31 1978-06-06 Xerox Corporation High speed tank development system
US4334760A (en) * 1980-06-18 1982-06-15 Litton Systems, Inc. Toner mechanism for electrophotographic recorder
US4453492A (en) * 1982-08-12 1984-06-12 E. I. Du Pont De Nemours And Company Magnetic developing unit with improved toner decorator for magnetic printing
EP0596640A2 (en) * 1992-11-02 1994-05-11 Xerox Corporation Development housing with simultaneous pickup and trim
EP0596640A3 (en) * 1992-11-02 1994-08-24 Xerox Corp Development housing with simultaneous pickup and trim.
US5416571A (en) * 1993-01-05 1995-05-16 Hitachi Koki Co., Ltd. Developing device for electrophotograph-type printer
US5966576A (en) * 1997-07-28 1999-10-12 Eastman Kodak Company Extended development zone apparatus with rotating magnets

Also Published As

Publication number Publication date
NL7505331A (nl) 1975-07-31

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