JPS6480547A - Printing head of wire dot printer - Google Patents
Printing head of wire dot printerInfo
- 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
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.
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) |
-
1987
- 1987-09-22 JP JP23831587A patent/JPS6480547A/en active Pending
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