CA1021006A - Method and apparatus for forming a positive electrostatic image - Google Patents

Method and apparatus for forming a positive electrostatic image

Info

Publication number: CA1021006A
Authority: CA; Canada
Prior art keywords: forming; electrostatic image; positive electrostatic; positive; image
Prior art date: 1971-11-11
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

CA152,365A

Other versions

CA152365S (en

Inventor

Hewitt D. Crane

George J. Eilers

Gerald L. Pressman

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.)

Electroprint Inc

Original Assignee

Electroprint 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.)

1971-11-11

Filing date

1972-09-22

Publication date

1977-11-15

1972-09-22 Application filed by Electroprint Inc filed Critical Electroprint Inc

1977-11-15 Application granted granted Critical

1977-11-15 Publication of CA1021006A publication Critical patent/CA1021006A/en

Status Expired legal-status Critical Current

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
- G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
- G03G15/34—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the powder image is formed directly on the recording material, e.g. by using a liquid toner
- G03G15/344—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the powder image is formed directly on the recording material, e.g. by using a liquid toner by selectively transferring the powder to the recording medium, e.g. by using a LED array
- G03G15/346—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the powder image is formed directly on the recording material, e.g. by using a liquid toner by selectively transferring the powder to the recording medium, e.g. by using a LED array by modulating the powder through holes or a slit

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Photoreceptors In Electrophotography (AREA)
Electrophotography Using Other Than Carlson'S Method (AREA)

CA152,365A 1971-11-11 1972-09-22 Method and apparatus for forming a positive electrostatic image Expired CA1021006A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US19787771A	1971-11-11	1971-11-11

Publications (1)

Publication Number	Publication Date
CA1021006A true CA1021006A (en)	1977-11-15

Family

ID=22731103

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA152,365A Expired CA1021006A (en)	1971-11-11	1972-09-22	Method and apparatus for forming a positive electrostatic image

Country Status (9)

Country	Link
US (1)	US3713734A (en)
JP (1)	JPS5642868B2 (en)
CA (1)	CA1021006A (en)
CH (1)	CH579293A5 (en)
DE (1)	DE2255132A1 (en)
FR (1)	FR2159885A5 (en)
GB (1)	GB1419520A (en)
IT (1)	IT966842B (en)
NL (1)	NL7214968A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4014694A (en) *	1972-08-17	1977-03-29	Electroprint, Inc.	Method and apparatus for forming a positive electrostatic image
JPS5427145B2 (en) *	1973-08-01	1979-09-07
GB1480842A (en) *	1973-06-19	1977-07-27	Canon Kk	Electrophotography
US4006983A (en) *	1973-10-29	1977-02-08	Electroprint, Inc.	Electrostatic color printing systems using modulated ion streams
US3942980A (en) *	1974-07-16	1976-03-09	Addressograph-Multigraph Corporation	Ion modulator device and method of using in positive and negative modes
US4086088A (en) *	1976-03-25	1978-04-25	Addressograph Multigraph Corporation	Imaging methods for use with charged particle modulator device
JPS53131A (en) *	1976-06-24	1978-01-05	Olympus Optical Co Ltd	Electrophotographic device
US4168164A (en) *	1976-07-08	1979-09-18	Konishiroku Photo Industry Co., Ltd.	Screen process for forming electrostatic latent images
JPS53108441A (en)	1977-03-04	1978-09-21	Olympus Optical Co Ltd	Zerographic apparatus
JPS53109636A (en) *	1977-03-07	1978-09-25	Olympus Optical Co Ltd	Electrophotographic method and apparatus
US4158564A (en) *	1977-04-04	1979-06-19	Electroprint, Inc.	Method and apparatus for controlling the gray scale response of a multilayer image forming screen
DE2827642C2 (en) *	1977-06-24	1982-06-24	Olympus Optical Co., Ltd., Tokyo	Control grid for image-wise modulation of an ion current in an electrostatic copier
US4218124A (en) *	1977-11-22	1980-08-19	Konishiroku Photo Industry Co., Ltd.	Photo-sensitive screen for producing electrostatic latent image
JPS5412752A (en) *	1978-05-16	1979-01-30	Canon Inc	Photosensitvie screen
US4600292A (en) *	1983-04-07	1986-07-15	Konishiroku Photo Industry Co., Ltd.	Photoconductive screen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA553355A (en) *		1958-02-18	International Business Machines Corporation	Apparatus and method for xerographic printing
DE1156308B (en) *	1956-01-10	1963-10-24	Albert Lieb	Method and apparatus for producing images by electrophotographic means
US3339469A (en) *	1962-08-06	1967-09-05	Sun Chemical Corp	Electrostatic printing apparatus
JPS41832Y1 (en) *	1964-06-16	1966-01-27
US3680954A (en) *	1965-04-30	1972-08-01	Eastman Kodak Co	Electrography
US3532422A (en) *	1966-07-14	1970-10-06	Electroprint Inc	Method and apparatus for electrostatic color reproduction
US3645614A (en) *	1968-03-01	1972-02-29	Electroprint Inc	Aperture-controlled electrostatic printing system employing ion projection
US3603790A (en) *	1968-04-30	1971-09-07	Kodak Ltd	Electroradiographic process

1971
- 1971-11-11 US US00197877A patent/US3713734A/en not_active Expired - Lifetime
1972
- 1972-09-22 CA CA152,365A patent/CA1021006A/en not_active Expired
- 1972-09-25 JP JP9525972A patent/JPS5642868B2/ja not_active Expired
- 1972-10-17 FR FR7236762A patent/FR2159885A5/fr not_active Expired
- 1972-10-30 IT IT53701/72A patent/IT966842B/en active
- 1972-11-02 CH CH1615772A patent/CH579293A5/xx not_active IP Right Cessation
- 1972-11-06 NL NL7214968A patent/NL7214968A/xx not_active Application Discontinuation
- 1972-11-10 DE DE2255132A patent/DE2255132A1/en not_active Ceased
- 1972-11-11 GB GB4542772A patent/GB1419520A/en not_active Expired

Also Published As

Publication number	Publication date
FR2159885A5 (en)	1973-06-22
AU4695272A (en)	1974-03-28
DE2255132A1 (en)	1973-05-17
US3713734A (en)	1973-01-30
NL7214968A (en)	1973-05-15
JPS5642868B2 (en)	1981-10-07
JPS4859840A (en)	1973-08-22
CH579293A5 (en)	1976-08-31
GB1419520A (en)	1975-12-31
IT966842B (en)	1974-02-20

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