EP0185999A3 - Dot matrix serial printer - Google Patents

Dot matrix serial printer Download PDF

Info

Publication number
EP0185999A3
EP0185999A3 EP85115472A EP85115472A EP0185999A3 EP 0185999 A3 EP0185999 A3 EP 0185999A3 EP 85115472 A EP85115472 A EP 85115472A EP 85115472 A EP85115472 A EP 85115472A EP 0185999 A3 EP0185999 A3 EP 0185999A3
Authority
EP
European Patent Office
Prior art keywords
printing
dot matrix
groups
serial printer
line pitch
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.)
Withdrawn
Application number
EP85115472A
Other languages
German (de)
French (fr)
Other versions
EP0185999A2 (en
Inventor
Giancarlo Collina
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.)
Bull HN Information Systems Italia SpA
Original Assignee
Honeywell Bull Italia SpA
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 Honeywell Bull Italia SpA filed Critical Honeywell Bull Italia SpA
Publication of EP0185999A2 publication Critical patent/EP0185999A2/en
Publication of EP0185999A3 publication Critical patent/EP0185999A3/en
Withdrawn legal-status Critical Current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
    • B41J2/485—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by the process of building-up characters or image elements applicable to two or more kinds of printing or marking processes
    • B41J2/505—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by the process of building-up characters or image elements applicable to two or more kinds of printing or marking processes from an assembly of identical printing elements
    • B41J2/5056—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by the process of building-up characters or image elements applicable to two or more kinds of printing or marking processes from an assembly of identical printing elements using dot arrays providing selective dot disposition modes, e.g. different dot densities for high speed and high-quality printing, array line selections for multi-pass printing, or dot shifts for character inclination
    • 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

Abstract

Dot matrix serial printer for the simultaneous serial printing of two subsequent rows with line pitch selectable between several values, provided with a printing head having two needle groups arranged along a line transversal to the printing lines and with selection means which, according to a line pitch defining signal, select needle sub-groups within two groups to perform the simultaneous printing of characters on two subsequent lines having a line pitch value defined by said signal.
EP85115472A 1984-12-12 1985-12-05 Dot matrix serial printer Withdrawn EP0185999A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT24020/84A IT1177399B (en) 1984-12-12 1984-12-12 SERIAL MATRIX PRINTER
IT2402084 1984-12-12

Publications (2)

Publication Number Publication Date
EP0185999A2 EP0185999A2 (en) 1986-07-02
EP0185999A3 true EP0185999A3 (en) 1988-01-20

Family

ID=11211516

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85115472A Withdrawn EP0185999A3 (en) 1984-12-12 1985-12-05 Dot matrix serial printer

Country Status (2)

Country Link
EP (1) EP0185999A3 (en)
IT (1) IT1177399B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740092A (en) * 1986-07-14 1988-04-26 International Business Machines Corporation Printhead shifting for wear distribution
US5044796A (en) * 1989-01-19 1991-09-03 Hewlett-Packard Company Bidirectional printing method in accordance with vertical breaks
US5349375A (en) * 1992-04-16 1994-09-20 Lexmark International, Inc. Ink jet printer dot placement compensation method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010835A (en) * 1975-08-01 1977-03-08 International Business Machines Corporation Matrix print head
GB2012090A (en) * 1978-01-09 1979-07-18 Rank Organisation Ltd Matrix printer
US4408907A (en) * 1980-10-21 1983-10-11 Ing. C. Olivetti & C., S.P.A. Dot printing device for accounting, terminal, telewriting machine, and similar office machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010835A (en) * 1975-08-01 1977-03-08 International Business Machines Corporation Matrix print head
GB2012090A (en) * 1978-01-09 1979-07-18 Rank Organisation Ltd Matrix printer
US4408907A (en) * 1980-10-21 1983-10-11 Ing. C. Olivetti & C., S.P.A. Dot printing device for accounting, terminal, telewriting machine, and similar office machine

Also Published As

Publication number Publication date
IT8424020A1 (en) 1986-06-12
IT1177399B (en) 1987-08-26
IT8424020A0 (en) 1984-12-12
EP0185999A2 (en) 1986-07-02

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Inventor name: COLLINA, GIANCARLO