JPS6480547A - Printing head of wire dot printer - Google Patents

Printing head of wire dot printer

Info

Publication number
JPS6480547A
JPS6480547A JP23831587A JP23831587A JPS6480547A JP S6480547 A JPS6480547 A JP S6480547A JP 23831587 A JP23831587 A JP 23831587A JP 23831587 A JP23831587 A JP 23831587A JP S6480547 A JPS6480547 A JP S6480547A
Authority
JP
Japan
Prior art keywords
printing
wires
return spring
wire
guide
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
JP23831587A
Other languages
Japanese (ja)
Inventor
Yasuhiko Nakazawa
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP23831587A priority Critical patent/JPS6480547A/en
Publication of JPS6480547A publication Critical patent/JPS6480547A/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
    • B41J2/25—Print wires

Landscapes

  • Impact Printers (AREA)

Abstract

PURPOSE:To enhance printing quality while suppressing the irregularity in the printing force and flight time of each printing wire, by forming a cylindrical groove having a predetermined depth to a spring device part so as so make the sum of the side pressure received by each printing wire from a wire guide equal to the spring pressure of a return spring. CONSTITUTION:When each of printing wires 10 is allowed to impinge on printing paper 20 through an ink ribbon 19 to perform printing, each of the individual printing wires 10 arranged in several longitudinal rows by the leading end guide 11 for guiding the leading ends of the printing wires 10 receives different side pressures from the wire guide part 1c of a guide holder 1, a wire guide 2 and the leading end guide 11. At this time, the depth of the cylindrical groove 17 of the apparatus part 1b of a return spring 15 is set so as to make the sum of said side pressures and the return spring pressure of the return spring 15 for energizing each of the printing wires 10 to a non-printing position constant. Therefore, the printing force and flight time of each of the printing wires 10 become equal and the behavior thereof becomes stable and high quality printing can be performed.
JP23831587A 1987-09-22 1987-09-22 Printing head of wire dot printer Pending JPS6480547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23831587A JPS6480547A (en) 1987-09-22 1987-09-22 Printing head of wire dot printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23831587A JPS6480547A (en) 1987-09-22 1987-09-22 Printing head of wire dot printer

Publications (1)

Publication Number Publication Date
JPS6480547A true JPS6480547A (en) 1989-03-27

Family

ID=17028380

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23831587A Pending JPS6480547A (en) 1987-09-22 1987-09-22 Printing head of wire dot printer

Country Status (1)

Country Link
JP (1) JPS6480547A (en)

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