EP0448214A3 - Developing device - Google Patents

Developing device Download PDF

Info

Publication number: EP0448214A3
Authority: EP; European Patent Office
Prior art keywords: developing device; developing
Prior art date: 1990-03-20
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.): Granted

Application number

EP19910301109

Other versions

EP0448214A2 (en

EP0448214B1 (en

Inventor

Takashi C/O Intell. Property Div. Ishikawa

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.)

Toshiba Corp

Toshiba TEC Corp

Original Assignee

Toshiba 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.)

1990-03-20

Filing date

1991-02-12

Publication date

1992-07-08

1991-02-12 Application filed by Toshiba Corp filed Critical Toshiba Corp

1991-09-25 Publication of EP0448214A2 publication Critical patent/EP0448214A2/en

1992-07-08 Publication of EP0448214A3 publication Critical patent/EP0448214A3/en

1995-09-13 Application granted granted Critical

1995-09-13 Publication of EP0448214B1 publication Critical patent/EP0448214B1/en

2011-02-12 Anticipated expiration legal-status Critical

Status Expired - Lifetime 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
- 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
- G03G15/0865—Arrangements for supplying new developer
- G03G15/0875—Arrangements for supplying new developer cartridges having a box like shape
- 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
- G03G15/0855—Detection or control means for the developer concentration the concentration being measured by optical 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
- G03G15/0865—Arrangements for supplying new developer

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Dry Development In Electrophotography (AREA)

EP91301109A 1990-03-20 1991-02-12 Developing device Expired - Lifetime EP0448214B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP1990028773U JPH03119860U (en)	1990-03-20	1990-03-20
JP28773/90U		1990-03-20

Publications (3)

Publication Number	Publication Date
EP0448214A2 EP0448214A2 (en)	1991-09-25
EP0448214A3 true EP0448214A3 (en)	1992-07-08
EP0448214B1 EP0448214B1 (en)	1995-09-13

Family

ID=12257729

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP91301109A Expired - Lifetime EP0448214B1 (en)	1990-03-20	1991-02-12	Developing device

Country Status (5)

Country	Link
EP (1)	EP0448214B1 (en)
JP (1)	JPH03119860U (en)
KR (1)	KR940002427B1 (en)
CA (1)	CA2036828C (en)
DE (1)	DE69112878T2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP3284334B2 (en) *	1996-11-18	2002-05-20	京セラミタ株式会社	Shutter member and toner supply device using the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4062385A (en) *	1975-03-14	1977-12-13	Eastman Kodak Company	Toner handling apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2662869B2 (en) *	1987-12-28	1997-10-15	京セラ株式会社	Electrophotographic equipment

1990
- 1990-03-20 JP JP1990028773U patent/JPH03119860U/ja active Pending
1991
- 1991-02-12 DE DE69112878T patent/DE69112878T2/en not_active Expired - Fee Related
- 1991-02-12 EP EP91301109A patent/EP0448214B1/en not_active Expired - Lifetime
- 1991-02-21 CA CA002036828A patent/CA2036828C/en not_active Expired - Fee Related
- 1991-03-19 KR KR1019910004307A patent/KR940002427B1/en not_active IP Right Cessation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4062385A (en) *	1975-03-14	1977-12-13	Eastman Kodak Company	Toner handling apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 13, no. 448 (P-942)(3796) 9 October 1989 & JP-A-1 173 076 ( KYOCERA CORP. ) 7 July 1989 *

Also Published As

Publication number	Publication date
KR910017245A (en)	1991-11-05
CA2036828C (en)	2000-05-09
EP0448214A2 (en)	1991-09-25
JPH03119860U (en)	1991-12-10
EP0448214B1 (en)	1995-09-13
KR940002427B1 (en)	1994-03-24
CA2036828A1 (en)	1991-09-21
DE69112878D1 (en)	1995-10-19
DE69112878T2 (en)	1996-02-15

Publication	Publication Date	Title
GB2267765B (en)	1996-11-13	Developing device
GB9004781D0 (en)	1990-04-25	Device
EP0518682A3 (en)	1993-05-26	Developing device
EP0541379A3 (en)	1993-08-25	Developing device
GB9012870D0 (en)	1990-08-01	Device
EP0440120A3 (en)	1991-10-23	Developing apparatus
EP0469902A3 (en)	1993-03-10	A developing device
EP0418824A3 (en)	1992-02-26	Developing device
EP0452897A3 (en)	1992-10-28	Developing apparatus
EP0488146A3 (en)	1993-02-03	Multicolor developing device
GB9008827D0 (en)	1990-06-13	Device
EP0512215A3 (en)	1993-06-30	Developing device
EP0485846A3 (en)	1992-12-02	Sheet-stapling device
GB9017474D0 (en)	1990-09-26	Device
EP0448214A3 (en)	1992-07-08	Developing device
GB9000826D0 (en)	1990-03-14	Anti-hazard device
GB2292230B (en)	1996-11-13	Developing device
GB9022493D0 (en)	1990-11-28	Fixing device
GB2279117B (en)	1995-06-14	Anti-roll-back device
ZA914275B (en)	1992-03-25	Fixing device
GB9003108D0 (en)	1990-04-11	Fixing device
RO105672B1 (en)	1992-11-30	Fixing device
GB9005139D0 (en)	1990-05-02	An imobilising device
HU903810D0 (en)	1990-11-28	Muscle developing device named tirala
GB9014834D0 (en)	1990-08-22	Device

Legal Events

Date	Code	Title	Description
1991-08-09	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1991-09-25	17P	Request for examination filed	Effective date: 19910222
1991-09-25	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE FR GB
1992-05-15	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1992-07-08	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): DE FR GB
1994-04-13	17Q	First examination report despatched	Effective date: 19940301
1995-07-28	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1995-09-13	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE FR GB
1995-10-06	ET	Fr: translation filed
1995-10-19	REF	Corresponds to:	Ref document number: 69112878 Country of ref document: DE Date of ref document: 19951019
1996-07-19	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1996-07-19	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1996-08-14	RAP2	Party data changed (patent owner data changed or rights of a patent transferred)	Owner name: KABUSHIKI KAISHA TEC Owner name: KABUSHIKI KAISHA TOSHIBA
1996-09-04	26N	No opposition filed
1998-10-28	REG	Reference to a national code	Ref country code: GB Ref legal event code: 746 Effective date: 19981007
1999-04-09	REG	Reference to a national code	Ref country code: FR Ref legal event code: D6
1999-12-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19991231 Year of fee payment: 10
2000-02-09	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20000209 Year of fee payment: 10
2000-02-10	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 20000210 Year of fee payment: 10
2001-02-12	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010212
2001-10-03	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20010212
2001-10-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011031
2001-11-30	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
2001-12-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011201