JPS5550275A - Developing device - Google Patents

Developing device

Info

Publication number
JPS5550275A
JPS5550275A JP12341578A JP12341578A JPS5550275A JP S5550275 A JPS5550275 A JP S5550275A JP 12341578 A JP12341578 A JP 12341578A JP 12341578 A JP12341578 A JP 12341578A JP S5550275 A JPS5550275 A JP S5550275A
Authority
JP
Japan
Prior art keywords
developer
constant
pools
maintained
always
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.)
Pending
Application number
JP12341578A
Other languages
Japanese (ja)
Inventor
Yasuyuki Tamura
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.)
Canon Inc
Original Assignee
Canon 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.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP12341578A priority Critical patent/JPS5550275A/en
Priority to GB7919004A priority patent/GB2025796B/en
Priority to DE19792922920 priority patent/DE2922920A1/en
Priority to FR7914444A priority patent/FR2428276A1/en
Publication of JPS5550275A publication Critical patent/JPS5550275A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE: To make developer conveying accurate and sure and obtain the developed images of high densities and good reproducibility by forming developer pools in the inlet region of the developing part and maintaining developer amount, shape and particle density always stable.
CONSTITUTION: The knife edge parts of plates 12, 13 form developer pools T", T' in the inlet region of the developing part, by which the respective developer amounts and shapes of the pools are maintained always constant. When a magnet roll 11 is rotated, the developer coming out from a vessel 10 and having been defined by the plate 12 subsequently moves on the peripheral surface of a cylinder 9, thereby subsequently forming and growing the pool T' and immediately maintaining the same constant. Namely, the growth ceases and the toner amounts and the inclination of the surfaces are maintained constant, whereby the particle densities are maintained stable. Then, even if the patterns of the electrostatic images change, the developed images which are visualized faithfully down to fine images having always even and high density and constant reproducibility may be obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP12341578A 1978-06-07 1978-10-06 Developing device Pending JPS5550275A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP12341578A JPS5550275A (en) 1978-10-06 1978-10-06 Developing device
GB7919004A GB2025796B (en) 1978-06-07 1979-05-31 Developing apparatus
DE19792922920 DE2922920A1 (en) 1978-06-07 1979-06-06 DEVICE FOR DEVELOPING A LATENT IMAGE FORMED ON AN IMAGE CARRIER
FR7914444A FR2428276A1 (en) 1978-06-07 1979-06-06 APPARATUS FOR DEVELOPING LATENT IMAGES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12341578A JPS5550275A (en) 1978-10-06 1978-10-06 Developing device

Publications (1)

Publication Number Publication Date
JPS5550275A true JPS5550275A (en) 1980-04-11

Family

ID=14859985

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12341578A Pending JPS5550275A (en) 1978-06-07 1978-10-06 Developing device

Country Status (1)

Country Link
JP (1) JPS5550275A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5598774A (en) * 1979-01-22 1980-07-28 Fuji Xerox Co Ltd Developing method and apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5598774A (en) * 1979-01-22 1980-07-28 Fuji Xerox Co Ltd Developing method and apparatus
JPS6354177B2 (en) * 1979-01-22 1988-10-27 Fuji Xerox Co Ltd

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