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JPS6430763A - Printing head of impact printer - Google Patents

Printing head of impact printer

Info

Publication number
JPS6430763A
JPS6430763A JP18539287A JP18539287A JPS6430763A JP S6430763 A JPS6430763 A JP S6430763A JP 18539287 A JP18539287 A JP 18539287A JP 18539287 A JP18539287 A JP 18539287A JP S6430763 A JPS6430763 A JP S6430763A
Authority
JP
Japan
Prior art keywords
spring
hammer
electromagnetic coil
piezoelectric element
returned
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
JP18539287A
Other languages
Japanese (ja)
Inventor
Juichi Tatsumi
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.)
YE Data Inc
Original Assignee
YE Data 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 YE Data Inc filed Critical YE Data Inc
Priority to JP18539287A priority Critical patent/JPS6430763A/en
Priority to US07/194,261 priority patent/US4844634A/en
Publication of JPS6430763A publication Critical patent/JPS6430763A/en
Pending 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
    • B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
    • B41J2/23—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
    • B41J2/235—Print head assemblies
    • B41J2/24—Print head assemblies serial printer type
    • 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
    • B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
    • B41J2/23—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
    • B41J2/27—Actuators for print wires
    • B41J2/28—Actuators for print wires of spring charge type, i.e. with mechanical power under electro-magnetic control
    • 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
    • B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
    • B41J2/23—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
    • B41J2/27—Actuators for print wires
    • B41J2/295—Actuators for print wires using piezoelectric elements

Landscapes

  • Impact Printers (AREA)

Abstract

PURPOSE:To enable continuous printing at high speed through restriction of heat generation of an electromagnetic coil, by separating a hammer attracted to a core by the effect of demagnetization of the electromagnetic coil and the extending action of an extensible operating stand having a piezoelectric element. CONSTITUTION:When an electromagnetic coil 3 is supplied power to demagnetize the magnetic field by a permanent magnet, and at the same time a piezoelectric element 7 is energized, the piezoelectric element 7 is elongated to press up a hammer spring 1b. Accordingly, the neutral point (c) of the hammer spring 1b is changed from S0 to S1 and also the spring constant thereof is changed. The spring characteristic of the leaf spring 1b is resulted in H'. The hammer pin 1a is thus made to fly at high speeds by the printing energy of A part, thereby carrying out printing. When the excitation of the electromagnetic coil 3 and the electric field of the piezoelectric element 7 are cut, the spring neutral point (c) of the leaf spring is returned to S0, with the spring constant being returned to the original, namely, to the condition shown by H, so that the hammer 1 is attracted to the core by the suction energy in B part and returned to be in the waiting condition. Thus, in comparison with prior arts, the current of the electromagnetic coil can be lowered while the printing energy is increased, and therefore it becomes possible to continuously print with less generation of heat.
JP18539287A 1987-07-27 1987-07-27 Printing head of impact printer Pending JPS6430763A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP18539287A JPS6430763A (en) 1987-07-27 1987-07-27 Printing head of impact printer
US07/194,261 US4844634A (en) 1987-07-27 1988-05-16 Printing head for an impact printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18539287A JPS6430763A (en) 1987-07-27 1987-07-27 Printing head of impact printer

Publications (1)

Publication Number Publication Date
JPS6430763A true JPS6430763A (en) 1989-02-01

Family

ID=16170006

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18539287A Pending JPS6430763A (en) 1987-07-27 1987-07-27 Printing head of impact printer

Country Status (1)

Country Link
JP (1) JPS6430763A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62292442A (en) * 1986-06-13 1987-12-19 Canon Inc Impact printer head
JPS63297055A (en) * 1987-05-29 1988-12-05 Nec Home Electronics Ltd Dot impact printing head

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62292442A (en) * 1986-06-13 1987-12-19 Canon Inc Impact printer head
JPS63297055A (en) * 1987-05-29 1988-12-05 Nec Home Electronics Ltd Dot impact printing head

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