JPS5569469A - Image recorder - Google Patents

Image recorder

Info

Publication number
JPS5569469A
JPS5569469A JP14370078A JP14370078A JPS5569469A JP S5569469 A JPS5569469 A JP S5569469A JP 14370078 A JP14370078 A JP 14370078A JP 14370078 A JP14370078 A JP 14370078A JP S5569469 A JPS5569469 A JP S5569469A
Authority
JP
Japan
Prior art keywords
magnet
magnetic
toner
acute angle
angle
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.)
Granted
Application number
JP14370078A
Other languages
Japanese (ja)
Other versions
JPS6027575B2 (en
Inventor
Yoshio Kishimoto
Yoichi Sekine
Wataru Shimoma
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP53143700A priority Critical patent/JPS6027575B2/en
Priority to US06/094,588 priority patent/US4258371A/en
Priority to CA340,060A priority patent/CA1125835A/en
Priority to GB7939697A priority patent/GB2038719B/en
Priority to FR7928425A priority patent/FR2441491A1/en
Priority to DE2946599A priority patent/DE2946599C2/en
Publication of JPS5569469A publication Critical patent/JPS5569469A/en
Publication of JPS6027575B2 publication Critical patent/JPS6027575B2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/06—Ink jet characterised by the jet generation process generating single droplets or particles on demand by electric or magnetic field
    • B41J2/065—Ink jet characterised by the jet generation process generating single droplets or particles on demand by electric or magnetic field involving the preliminary making of ink protuberances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/06—Ink jet characterised by the jet generation process generating single droplets or particles on demand by electric or magnetic field
    • B41J2002/061—Ejection by electric field of ink or of toner particles contained in ink

Landscapes

  • Developing Agents For Electrophotography (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Abstract

PURPOSE:To improve the projection shape and feeding property of a toner and continuously record a sharp image, by using a magnet having an acute angle to one magnetic pole face, as a magnetic force source for the multi-stylus unit of a head. CONSTITUTION:A head is made of a permanent magnet 6 having an acute angle to one magnetic pole face to strengthen the magnetic force on the tip of a multi-stylus unit 1 and obtain a projection shape for a high SN ratio. When the thickness of a bonded layer 8 of the magnet 6 is not more than the double of the diameter of the stylus of the unit 1, the projection shape for the high SN ratio is stably maintained and a sharp image is formed even if a magnetic flowing toner is becoming insufficient. The acute angle to the magnetic pole face of the magnet 6 is preferably 30 to 60 deg.. If the angle is less than 30 deg., the magnetic force is weak. If the angle is more than 60 deg., a toner projection takes place near the S-pole of the magnet and can cause a noise.
JP53143700A 1978-11-20 1978-11-20 image recording device Expired JPS6027575B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP53143700A JPS6027575B2 (en) 1978-11-20 1978-11-20 image recording device
US06/094,588 US4258371A (en) 1978-11-20 1979-11-15 Image recording apparatus
CA340,060A CA1125835A (en) 1978-11-20 1979-11-16 Image recording apparatus
GB7939697A GB2038719B (en) 1978-11-20 1979-11-16 Image recording apparatus
FR7928425A FR2441491A1 (en) 1978-11-20 1979-11-19 SMOOTH PAPER IMAGE RECORDING APPARATUS
DE2946599A DE2946599C2 (en) 1978-11-20 1979-11-19 Image recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53143700A JPS6027575B2 (en) 1978-11-20 1978-11-20 image recording device

Publications (2)

Publication Number Publication Date
JPS5569469A true JPS5569469A (en) 1980-05-26
JPS6027575B2 JPS6027575B2 (en) 1985-06-29

Family

ID=15344924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53143700A Expired JPS6027575B2 (en) 1978-11-20 1978-11-20 image recording device

Country Status (1)

Country Link
JP (1) JPS6027575B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58104767A (en) * 1981-12-16 1983-06-22 Matsushita Electric Ind Co Ltd Magnetic fluid recorder
US4841312A (en) * 1986-11-27 1989-06-20 Fuji Xerox Co., Ltd. Thermal-electrostatic ink jet recording apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58104767A (en) * 1981-12-16 1983-06-22 Matsushita Electric Ind Co Ltd Magnetic fluid recorder
JPH032670B2 (en) * 1981-12-16 1991-01-16 Matsushita Electric Ind Co Ltd
US4841312A (en) * 1986-11-27 1989-06-20 Fuji Xerox Co., Ltd. Thermal-electrostatic ink jet recording apparatus

Also Published As

Publication number Publication date
JPS6027575B2 (en) 1985-06-29

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