JPS56113170A - Dry development method - Google Patents

Dry development method

Info

Publication number
JPS56113170A
JPS56113170A JP1633780A JP1633780A JPS56113170A JP S56113170 A JPS56113170 A JP S56113170A JP 1633780 A JP1633780 A JP 1633780A JP 1633780 A JP1633780 A JP 1633780A JP S56113170 A JPS56113170 A JP S56113170A
Authority
JP
Japan
Prior art keywords
developer
time
rotation
low speed
speed
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
JP1633780A
Other languages
Japanese (ja)
Inventor
Yasuo Sawada
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP1633780A priority Critical patent/JPS56113170A/en
Publication of JPS56113170A publication Critical patent/JPS56113170A/en
Pending legal-status Critical Current

Links

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
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer

Abstract

PURPOSE:To prevent the deterioration of a developer by setting a rotary speed of the stirring blade to an optimum high speed value by which rise of electric charge of a developer becomes quick for a prescribed time, in case of a copying mode, and changing it to a low speed in which fatigue of the developer is not accelerated in other time. CONSTITUTION:In case of a copying mode, a developer 9 circulates in the equipment by rotating of a scooping roller and two development rollers 3a, 3b, it contacts like a brush with an electrostatic latent image carried on the sensitive body drum as a part to be developed, through the drum 1, and forms an image. And, as soon as the scooping roller 2 starts its rotation at time t1, the stirring blades 4a, 4b start the rotation at a low speed, and replenishment of the developer is started at time t2 and the rotation of the stirring blades 4a, 4b is changed to a high speed. When copying has been finished, said rotary speed is changed to a low speed at time t4, and the rotation is stopped at t5. Since said operation is performed, fatigue of a developer is reduced without deteriorating the efficiency of the stirring blade.
JP1633780A 1980-02-13 1980-02-13 Dry development method Pending JPS56113170A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1633780A JPS56113170A (en) 1980-02-13 1980-02-13 Dry development method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1633780A JPS56113170A (en) 1980-02-13 1980-02-13 Dry development method

Publications (1)

Publication Number Publication Date
JPS56113170A true JPS56113170A (en) 1981-09-05

Family

ID=11913594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1633780A Pending JPS56113170A (en) 1980-02-13 1980-02-13 Dry development method

Country Status (1)

Country Link
JP (1) JPS56113170A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63139376A (en) * 1986-12-02 1988-06-11 Ricoh Co Ltd Multicolor developing device
JPH01297677A (en) * 1988-05-25 1989-11-30 Fujitsu Ltd Image forming device
US5040023A (en) * 1988-09-14 1991-08-13 Minolta Camera Kabushiki Kaisha Method and apparatus for supplying toner to a developing device in an image forming apparatus
JPH05150652A (en) * 1991-12-02 1993-06-18 Sharp Corp Developing device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63139376A (en) * 1986-12-02 1988-06-11 Ricoh Co Ltd Multicolor developing device
JPH01297677A (en) * 1988-05-25 1989-11-30 Fujitsu Ltd Image forming device
US5040023A (en) * 1988-09-14 1991-08-13 Minolta Camera Kabushiki Kaisha Method and apparatus for supplying toner to a developing device in an image forming apparatus
JPH05150652A (en) * 1991-12-02 1993-06-18 Sharp Corp Developing device

Similar Documents

Publication Publication Date Title
JPS56113170A (en) Dry development method
JPS5764266A (en) Developing device for picture forming device
JPS5555370A (en) Magnetic brush developing unit
JPS57120965A (en) Method for preventing degradation of developer in dry electrophotographic developing machine
JPS55111971A (en) Developing method
JPS54136339A (en) Developing apparatus
JPS56104358A (en) Electrophotographic copier
JPS5496047A (en) Dry type electrophotographic copier
JPS5517161A (en) Liquid developing method of electrostatic latent image
JPS5680079A (en) Polishing method of surface of electrophotographic photoreceptor
GB1498310A (en) Blending chamber for electrostatic processors
JPS55101968A (en) Image control method of electrophotography
JPS5555372A (en) Magnetic brush developing unit
JPS5479638A (en) Image forming device
JPS5689762A (en) Developing device of electronic copying machine
JPS5921395Y2 (en) Toner replenishment device for electrostatic image development
JPS5526536A (en) Magnetic brush developing machine
JPS5638074A (en) Electrophotographic copier
JPS5529867A (en) Image former
JPS5536801A (en) Magnetic brush developing device
JPS5557870A (en) Developing machine
JPS5675661A (en) Dry type two component reversal developing method
JPS5789782A (en) Improving method for transfer characteristic of elecronic copying machine
JPS57130051A (en) Developing method
JPS54133347A (en) Image control method in electrostatic copying machine