AU4874172A - Electrostatic copying machine - Google Patents

Electrostatic copying machine

Info

Publication number: AU4874172A
Authority: AU; Australia
Prior art keywords: copying machine; electrostatic copying; electrostatic; machine; copying
Prior art date: 1971-12-17
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

AU48741/72A

Inventor

James Lydell Bacon

Carl Allan Queener

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.)

International Business Machines Corp

Original Assignee

International Business Machines 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.)

1971-12-17

Filing date

1972-11-10

Publication date

1974-05-16

1972-11-10 Application filed by International Business Machines Corp filed Critical International Business Machines Corp

1974-05-16 Publication of AU4874172A publication Critical patent/AU4874172A/en

Status Expired legal-status Critical Current

Links

Classifications

- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0605—Control of flow characterised by the use of electric means specially adapted for solid materials
- 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
- G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
- G03G15/0849—Detection or control means for the developer concentration
- G03G15/0851—Detection or control means for the developer concentration the concentration being measured by electrical means
- 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
- G03G15/0887—Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity
- G03G15/0891—Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity for conveying or circulating developer, e.g. augers
- 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

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Automation & Control Theory (AREA)
Dry Development In Electrophotography (AREA)
Control Or Security For Electrophotography (AREA)

AU48741/72A 1971-12-17 1972-11-10 Electrostatic copying machine Expired AU4874172A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US00209040A US3821938A (en)	1971-12-17	1971-12-17	Toner usage sensing system

Publications (1)

Publication Number	Publication Date
AU4874172A true AU4874172A (en)	1974-05-16

Family

ID=22777076

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU48741/72A Expired AU4874172A (en)	1971-12-17	1972-11-10	Electrostatic copying machine

Country Status (14)

Country	Link
US (1)	US3821938A (en)
JP (1)	JPS4869528A (en)
AR (1)	AR205242A1 (en)
AU (1)	AU4874172A (en)
BR (1)	BR7208877D0 (en)
CA (1)	CA1010493A (en)
CH (1)	CH539870A (en)
DE (1)	DE2254883A1 (en)
ES (1)	ES409699A1 (en)
FR (1)	FR2165442A5 (en)
GB (1)	GB1372999A (en)
IT (1)	IT967830B (en)
NL (1)	NL7215310A (en)
SE (1)	SE375634B (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5619637B2 (en) *	1973-06-20	1981-05-08
JPS613004Y2 (en) *	1975-01-13	1986-01-30
US4026643A (en) *	1975-08-22	1977-05-31	Xerox Corporation	Apparatus and method for measurement of the ratio of toner particle electrostatic charge to toner particle mass in electrostatographic devices
JPS52131729A (en) *	1976-04-28	1977-11-04	Ricoh Co Ltd	Toner concentration detection circuit
US4064834A (en) *	1976-11-19	1977-12-27	A. B. Dick Company	Apparatus for sensing the concentration of toner in a developer mix
US4163787A (en)	1977-03-14	1979-08-07	The Dow Chemical Company	Substituted pyridine methyl esters of cyclopropane carboxylic acids and their use as insecticides
JPS5437758A (en) *	1977-08-30	1979-03-20	Ricoh Co Ltd	Electrostatic latent image developing method
US4343548A (en) *	1980-05-19	1982-08-10	Xerox Corporation	Control system for regulating the concentration of toner particles within a developer mixture
US4524088A (en) *	1983-01-31	1985-06-18	Magnetic Technologies Corp.	Method and apparatus for controlling the thickness of developer on an applicator, such as a magnetic brush, in electrostatic reproduction
US4492179A (en) *	1983-06-16	1985-01-08	Xerox Corporation	Control system for regulating the dispensing of marking particles in an electrophotographic printing machine
US4972230A (en) *	1989-10-31	1990-11-20	Xerox Corporation	Toner usage detector based on current biasing mixing means
US5006897A (en) *	1990-07-02	1991-04-09	Eastman Kodak Company	Determination of charge-to-mass ratio
US5459556A (en) *	1994-01-12	1995-10-17	Xerox Corporation	Toner consumption rate gauge for printers and copiers
JP3269949B2 (en) *	1995-10-03	2002-04-02	京セラミタ株式会社	Method for measuring toner concentration and charge amount in two-component developer
JP3199993B2 (en) *	1995-10-23	2001-08-20	シャープ株式会社	Developer charge amount measuring device
FR2764374B1 (en) *	1997-06-10	1999-08-06	Stolz Sequipag	DEVICE FOR CONTROLLING THE FLOW OF A PRODUCT CONTAINED IN AN ENCLOSURE
US6248496B1 (en) *	2000-03-07	2001-06-19	Xerox Corporation	Method of replenishing developer in a hybrid scavengeless development system
WO2003052521A1 (en) *	2001-12-14	2003-06-26	Sanyo Chemical Industries, Ltd.	Resin for toner binder and toner composition
US7546048B2 (en) *	2006-01-12	2009-06-09	Sun Chemical Corporation	Method for determining ink usage efficiency in commercial printing processes using pigments and quantitative tests
US8155540B2 (en) *	2010-06-02	2012-04-10	Xerox Corporation	Optimized limit gain compensation for dispense time accumulators of toner concentration control

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3527651A (en) *	1966-10-20	1970-09-08	Addressograph Multigraph	Method of and apparatus for developing electrostatic images
US3553464A (en) *	1967-03-27	1971-01-05	Ricoh Kk	Device for detecting the density of developer in an electrostatographic duplicator
US3399652A (en) *	1967-06-14	1968-09-03	Addressograph Multigraph	Automatic toner concentrate detector
US3682132A (en) *	1969-03-03	1972-08-08	Xerox Corp	Automatic developer controller
US3572551A (en) *	1969-03-27	1971-03-30	Rca Corp	Apparatus for monitoring and controlling the concentration of toner in a developer mix
BE757197A (en) *	1969-10-09	1971-03-16	Rca Corp	DEVICE FOR MONITORING AND ADJUSTING THE CONCENTRATION OF POWDER PARTICLES IN A MIXTURE OF POWDER AND MAGNETIC PARTICLES
DE2055321C3 (en) *	1969-11-11	1975-11-20	Katsuragawa Denki K.K., Tokio	Apparatus for supplying a toner in an electrophotographic copier
US3654893A (en) *	1970-05-01	1972-04-11	Eastman Kodak Co	Automatic bias control for electrostatic development
US3674532A (en) *	1970-07-23	1972-07-04	Eastman Kodak Co	Control for bias of magnetic brush and method
US3707134A (en) *	1970-08-21	1972-12-26	Addressograph Multigraph	Automatic toner concentrate detector and control device
US3678896A (en) *	1971-01-28	1972-07-25	Xerox Corp	Conveyor system
US3674353A (en) *	1971-07-01	1972-07-04	Eastman Kodak Co	Toner concentration control apparatus
AU467941B2 (en) *	1971-09-25	1975-12-18	Hoechst Aktiengesellschaft	Method of and apparatus for measuring or measuring and replacing toner consumed inan electrophotographic reproduction machine

1971
- 1971-12-17 US US00209040A patent/US3821938A/en not_active Expired - Lifetime
1972
- 1972-01-01 AR AR245558A patent/AR205242A1/en active
- 1972-09-25 IT IT29631/72A patent/IT967830B/en active
- 1972-11-02 GB GB5045772A patent/GB1372999A/en not_active Expired
- 1972-11-09 DE DE2254883A patent/DE2254883A1/en active Pending
- 1972-11-10 AU AU48741/72A patent/AU4874172A/en not_active Expired
- 1972-11-10 JP JP47112228A patent/JPS4869528A/ja active Pending
- 1972-11-13 NL NL7215310A patent/NL7215310A/xx not_active Application Discontinuation
- 1972-11-17 SE SE7214970A patent/SE375634B/xx unknown
- 1972-11-28 CH CH1734672A patent/CH539870A/en not_active IP Right Cessation
- 1972-11-29 FR FR7243284A patent/FR2165442A5/fr not_active Expired
- 1972-12-05 CA CA158,260A patent/CA1010493A/en not_active Expired
- 1972-12-15 BR BR8877/72A patent/BR7208877D0/en unknown
- 1972-12-16 ES ES409699A patent/ES409699A1/en not_active Expired

Also Published As

Publication number	Publication date
JPS4869528A (en)	1973-09-21
AR205242A1 (en)	1976-04-21
FR2165442A5 (en)	1973-08-03
ES409699A1 (en)	1975-12-16
SE375634B (en)	1975-04-21
NL7215310A (en)	1973-06-19
DE2254883A1 (en)	1973-06-28
GB1372999A (en)	1974-11-06
CA1010493A (en)	1977-05-17
US3821938A (en)	1974-07-02
CH539870A (en)	1973-07-31
BR7208877D0 (en)	1974-01-03
IT967830B (en)	1974-03-11

Publication	Publication Date	Title
JPS57104166A (en)	1982-06-29	Electrophotographic copying machine
GB1368528A (en)	1974-09-25	Electrophotgraphic machine
AU460913B2 (en)	1975-05-08	Xerographic copying machine
AU4874172A (en)	1974-05-16	Electrostatic copying machine
GB1370189A (en)	1974-10-16	Electrophotography
GB1415170A (en)	1975-11-26	Electrostatic reproduction machine
GB1366099A (en)	1974-09-11	Electrophotographic copying machines
GB1417006A (en)	1975-12-10	Electrostatic copiers
GB1413525A (en)	1975-11-12	Electrostatic copying apparatus
JPS53114441A (en)	1978-10-05	Flectrostatic copying machine
CA943622A (en)	1974-03-12	Photoelectrostatic copying machine
AU463212B2 (en)	1975-07-03	Electrophotographic copying machine
IL42547A0 (en)	1973-08-29	Improved electrophotographic copying machine
CA968403A (en)	1975-05-27	Electrophotographic copying machine
CA930788A (en)	1973-07-24	Copying machine
GB1368567A (en)	1974-10-02	Electrostatic copier
GB1418306A (en)	1975-12-17	Electrostatographic machine fuser assemblies
CA870795A (en)	1971-05-11	Electrostatic copying machine
GB1369122A (en)	1974-10-02	Electrophotographic processes
ZA723320B (en)	1973-03-28	Electrophotographic copying machine
ZA724295B (en)	1973-03-28	Electrophotographic copying machine
GB1407245A (en)	1975-09-24	Electrostatic copying sheet
AU479037B2 (en)	1973-11-22	Electrophotographic copying machine
CA867986A (en)	1971-04-06	Electrophotographic copying machine
CA888325A (en)	1971-12-14	Copying machine