JPS54126039A - Magnetic toner - Google Patents

Magnetic toner

Info

Publication number
JPS54126039A
JPS54126039A JP1644478A JP1644478A JPS54126039A JP S54126039 A JPS54126039 A JP S54126039A JP 1644478 A JP1644478 A JP 1644478A JP 1644478 A JP1644478 A JP 1644478A JP S54126039 A JPS54126039 A JP S54126039A
Authority
JP
Japan
Prior art keywords
toner particles
larger
image
shape
resolution
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
JP1644478A
Other languages
Japanese (ja)
Inventor
Yukio Suzuki
Tsutomu Uehara
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
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1644478A priority Critical patent/JPS54126039A/en
Publication of JPS54126039A publication Critical patent/JPS54126039A/en
Pending legal-status Critical Current

Links

Landscapes

  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE: To improve the two opposite characteristics thereby to realize an image, which has its resolution improved and its fog reduced, by specifying the shape, diameter and mixture ratio of larger and smaller particles of different types.
CONSTITUTION: A material, which contains tri-silver tetraoxide as magnetic powders, an epoxy resin as a coating resin and carbon black as an electric resistance adjusting agent, is classified. The mixture ratio of the larger toner particles, which have round shape and a diameter ranging from 10 to 100 μ, preferably, 10 to 50 μ, to the smaller toner particles, which have irregular shape and a diameter ranging from 1 to 10 μ, preferably, 5 to 10 μ, is determined to have the 10 to 40 wt.% of the larger toner particles and 60 to 90 wt.% of the samller toner particles. Thus, the resolution can be enhanced, and the carrying property and fluidity of the toners as a whole can be improved so that an image having less fog can be formed.
COPYRIGHT: (C)1979,JPO&Japio
JP1644478A 1978-02-17 1978-02-17 Magnetic toner Pending JPS54126039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1644478A JPS54126039A (en) 1978-02-17 1978-02-17 Magnetic toner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1644478A JPS54126039A (en) 1978-02-17 1978-02-17 Magnetic toner

Publications (1)

Publication Number Publication Date
JPS54126039A true JPS54126039A (en) 1979-09-29

Family

ID=11916399

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1644478A Pending JPS54126039A (en) 1978-02-17 1978-02-17 Magnetic toner

Country Status (1)

Country Link
JP (1) JPS54126039A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5650763A (en) * 1979-09-29 1981-05-08 Nippon Fuandorii Service Kk Method of pouring molten metal by performing graphite spheroidization treatment
JPS5666857A (en) * 1979-10-22 1981-06-05 Xerox Corp Magnetic toner composition and preparing same
JPS5710150A (en) * 1980-06-20 1982-01-19 Matsushita Electric Ind Co Ltd Dry type developer
JPS58105163A (en) * 1981-12-17 1983-06-22 Matsushita Electric Ind Co Ltd Dry developer
JPS58220146A (en) * 1982-06-16 1983-12-21 Matsushita Electric Ind Co Ltd Dry developer
JPS63149662A (en) * 1986-12-12 1988-06-22 Canon Inc Color image forming device
JPH0617777U (en) * 1992-08-19 1994-03-08 株式会社久保田運動具店 Baseball and softball catchers

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5650763A (en) * 1979-09-29 1981-05-08 Nippon Fuandorii Service Kk Method of pouring molten metal by performing graphite spheroidization treatment
JPS5740204B2 (en) * 1979-09-29 1982-08-26
JPS5666857A (en) * 1979-10-22 1981-06-05 Xerox Corp Magnetic toner composition and preparing same
JPH0114582B2 (en) * 1979-10-22 1989-03-13 Xerox Corp
JPS5710150A (en) * 1980-06-20 1982-01-19 Matsushita Electric Ind Co Ltd Dry type developer
JPS58105163A (en) * 1981-12-17 1983-06-22 Matsushita Electric Ind Co Ltd Dry developer
JPH0122615B2 (en) * 1981-12-17 1989-04-27 Matsushita Electric Ind Co Ltd
JPS58220146A (en) * 1982-06-16 1983-12-21 Matsushita Electric Ind Co Ltd Dry developer
JPS63149662A (en) * 1986-12-12 1988-06-22 Canon Inc Color image forming device
JPH0617777U (en) * 1992-08-19 1994-03-08 株式会社久保田運動具店 Baseball and softball catchers

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