JPS6430764A - Preventing method of rebounding of hammer in spring charge printing head of impact printer - Google Patents

Preventing method of rebounding of hammer in spring charge printing head of impact printer

Info

Publication number
JPS6430764A
JPS6430764A JP18539387A JP18539387A JPS6430764A JP S6430764 A JPS6430764 A JP S6430764A JP 18539387 A JP18539387 A JP 18539387A JP 18539387 A JP18539387 A JP 18539387A JP S6430764 A JPS6430764 A JP S6430764A
Authority
JP
Japan
Prior art keywords
hammer
rebounding
magnetic pole
leaf spring
piezoelectric element
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
JP18539387A
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 JP18539387A priority Critical patent/JPS6430764A/en
Priority to US07/194,261 priority patent/US4844634A/en
Publication of JPS6430764A publication Critical patent/JPS6430764A/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
    • B41J2/27—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
    • B41J2/235—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
    • B41J2/295—Actuators for print wires using piezoelectric elements

Landscapes

  • Impact Printers (AREA)

Abstract

PURPOSE:To restrict the rebounding to be caused when a hammer is attracted to a core, by controlling a piezoelectric element at the side of a permanent magnet between a fixing part of a leaf spring and a magnetic pole, for achieving high-speed printing, and also to enhance durability of a printing head by reducing wear and tear of a contact portion between the hammer and the core. CONSTITUTION:An extensible operating stand 6 which is provided with a piezoelectric element 7 is placed in the middle of a part where a leaf spring is fixed and a magnetic pole. The piezoelectric element 7 is controlled in the movement thereof when a hammer is returned, thereby to restrict the rebounding phenomenon by a secondary vibration mode. In other words, the piezoelectric element 7 is so constructed as to be extended or elongated in a direction shown by an arrow when the element 7 is energized. When the hammer is returned, voltage of such size as to restrict the rebounding (which is determined through experiments) is applied to the hammer. Accordingly, the attenuation time t's of the hammer by the rebounding is made small, and the printing cycle t'rep is reduced, thereby to accomplish printing at high speeds. Moreover, since the rebounding is never given rise when the hammer is attracted to the core, and the leaf spring and the magnetic pole can be almost prevented from being abraded, a long service life of a printing head is secured. Further, noises generated by the collision of the leaf spring and the magnetic pole can be reduced.
JP18539387A 1987-07-27 1987-07-27 Preventing method of rebounding of hammer in spring charge printing head of impact printer Pending JPS6430764A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP18539387A JPS6430764A (en) 1987-07-27 1987-07-27 Preventing method of rebounding of hammer in spring charge 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
JP18539387A JPS6430764A (en) 1987-07-27 1987-07-27 Preventing method of rebounding of hammer in spring charge printing head of impact printer

Publications (1)

Publication Number Publication Date
JPS6430764A true JPS6430764A (en) 1989-02-01

Family

ID=16170024

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18539387A Pending JPS6430764A (en) 1987-07-27 1987-07-27 Preventing method of rebounding of hammer in spring charge printing head of impact printer

Country Status (1)

Country Link
JP (1) JPS6430764A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5820467A (en) * 1981-07-30 1983-02-05 Fujitsu Ltd Print head for dot printer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5820467A (en) * 1981-07-30 1983-02-05 Fujitsu Ltd Print head for dot printer

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