JPS56137357A - Magnetic toner - Google Patents

Magnetic toner

Info

Publication number
JPS56137357A
JPS56137357A JP4128180A JP4128180A JPS56137357A JP S56137357 A JPS56137357 A JP S56137357A JP 4128180 A JP4128180 A JP 4128180A JP 4128180 A JP4128180 A JP 4128180A JP S56137357 A JPS56137357 A JP S56137357A
Authority
JP
Japan
Prior art keywords
toner
crystals
magnetic
powders
needlelike
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
JP4128180A
Other languages
Japanese (ja)
Inventor
Koji Noguchi
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP4128180A priority Critical patent/JPS56137357A/en
Publication of JPS56137357A publication Critical patent/JPS56137357A/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
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/083—Magnetic toner particles
    • G03G9/0837—Structural characteristics of the magnetic components, e.g. shape, crystallographic structure

Abstract

PURPOSE:To improve the quality of an image by mixing two kinds of magnetic powders of needlelike and cubic system crystals to prepare a PPC system one-component magnetic toner consisting of magnetic powder and thermoplastic resin. CONSTITUTION:Magnetic powders of needlelike crystals 3 and cubic system crystals 2 are mixed in 2:8-8:2 ratio and contained by 30-65pts.wt. to 100pts.wt. of toner 1 to adjust the electric resistance of the toner to 10<10>-10<16>OMEGA-cm. Cubic system crystals cause uneven development, and it is difficult for needlelike crystals to produce halftone, yet by mixing both the crystals, the properties are improved. When the part weigh of the magnetic powders is reduced, the scattering amount is increased to cause ground fog. On the other hand, more magnetic powders extremely lower the fixability of the toner, scratch a photoreceptor, and make the electric resistance unsuitable. The magnetic characteristics of a toner contg. a single kind of magnetic powder can be fitted to those of this toner contg. the mixed powders, but this toner provides higher quality to an image.
JP4128180A 1980-03-31 1980-03-31 Magnetic toner Pending JPS56137357A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4128180A JPS56137357A (en) 1980-03-31 1980-03-31 Magnetic toner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4128180A JPS56137357A (en) 1980-03-31 1980-03-31 Magnetic toner

Publications (1)

Publication Number Publication Date
JPS56137357A true JPS56137357A (en) 1981-10-27

Family

ID=12604056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4128180A Pending JPS56137357A (en) 1980-03-31 1980-03-31 Magnetic toner

Country Status (1)

Country Link
JP (1) JPS56137357A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983002013A1 (en) * 1981-11-26 1983-06-09 Kishi, Kenichi Magnetic toner
JPS58136045A (en) * 1982-02-08 1983-08-12 Mita Ind Co Ltd One-component electroscopic magnetic developer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983002013A1 (en) * 1981-11-26 1983-06-09 Kishi, Kenichi Magnetic toner
JPS58136045A (en) * 1982-02-08 1983-08-12 Mita Ind Co Ltd One-component electroscopic magnetic developer
JPH0445821B2 (en) * 1982-02-08 1992-07-28 Mita Industrial Co Ltd

Similar Documents

Publication Publication Date Title
JPS6410264A (en) Electrophotographic developer
JPS5662256A (en) Electrophotographic developer and developing method
GB1497732A (en) Carrier particles suitable for electrostatographic developers
JPS5532073A (en) Electrophotographic developing method
JPS56106249A (en) Developer
JPS56137357A (en) Magnetic toner
JPS56126843A (en) Carrier for electrophotographic dry toner
GB2283827A (en) Charge-control agent composition and toner containing this composition
JPS56159654A (en) Developing method
JPS5760340A (en) Development agent for one component electrostatic charge image
JPS57204560A (en) Electrophotographic developer
JPS5796353A (en) Two component system developer for magnetic brush development
JPS56159653A (en) Developer for electrostatic latent image
ES485865A1 (en) Electrophotographical developer material and its use.
JPS5764252A (en) Charge type magnetic toner
JPS565559A (en) Magnetic toner
JPS5528020A (en) Magnetic toner
JPS57158654A (en) Pressure-fixable toner
JPS5738440A (en) Insulating toner
JPS5436726A (en) Dry type development for zerography
JPS56135845A (en) Pressure fixing toner
JPS6481968A (en) Liquid color developer for electrostatic photography
JPS57101853A (en) Manufacture of developing powder
GB1299424A (en) High resistance carrier particles
GB1312806A (en) Developer material