GB2015931B - Matrix print head assembly - Google Patents

Matrix print head assembly

Info

Publication number
GB2015931B
GB2015931B GB7908202A GB7908202A GB2015931B GB 2015931 B GB2015931 B GB 2015931B GB 7908202 A GB7908202 A GB 7908202A GB 7908202 A GB7908202 A GB 7908202A GB 2015931 B GB2015931 B GB 2015931B
Authority
GB
United Kingdom
Prior art keywords
print head
head assembly
matrix print
matrix
assembly
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.)
Expired
Application number
GB7908202A
Other versions
GB2015931A (en
Inventor
Donald G Hebert
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.)
Dh Ass
Original Assignee
Dh Ass
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27373251&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB2015931(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US05/885,186 external-priority patent/US4185929A/en
Priority claimed from US05/887,927 external-priority patent/US4230412A/en
Application filed by Dh Ass filed Critical Dh Ass
Publication of GB2015931A publication Critical patent/GB2015931A/en
Priority claimed from US06/078,289 external-priority patent/US4478528A/en
Application granted granted Critical
Publication of GB2015931B publication Critical patent/GB2015931B/en
Expired 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
    • B41J2/255—Arrangement of the print ends of the wires
    • 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
    • B41J2/265—Guides for print wires
    • 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
    • B41J2/275—Actuators for print wires of clapper type
GB7908202A 1978-03-10 1979-03-08 Matrix print head assembly Expired GB2015931B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/885,186 US4185929A (en) 1978-03-10 1978-03-10 Wire matrix print head assembly
US05/887,927 US4230412A (en) 1978-03-17 1978-03-17 Matrix print head assembly
US06/078,289 US4478528A (en) 1978-03-10 1979-09-24 Wire matrix print head assembly

Publications (2)

Publication Number Publication Date
GB2015931A GB2015931A (en) 1979-09-19
GB2015931B true GB2015931B (en) 1982-09-08

Family

ID=27373251

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7908202A Expired GB2015931B (en) 1978-03-10 1979-03-08 Matrix print head assembly

Country Status (2)

Country Link
EP (1) EP0026623B1 (en)
GB (1) GB2015931B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2015931B (en) * 1978-03-10 1982-09-08 Dh Ass Matrix print head assembly
GB2137142A (en) * 1983-03-31 1984-10-03 Dca Design Consult Ticket Printer
GB8614217D0 (en) * 1986-06-11 1986-07-16 Russet Instr Plc Print head

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165940A (en) * 1977-02-28 1979-08-28 Centronics Data Computer Corp. Free flight head assembly for dot matrix printers and the like
US4081067A (en) * 1977-03-07 1978-03-28 Ncr Corporation Internal vibration dampening means for printing mechanism
US4140406A (en) * 1977-06-13 1979-02-20 Dataproducts Dot matrix print head
GB2015931B (en) * 1978-03-10 1982-09-08 Dh Ass Matrix print head assembly
IT1099489B (en) * 1978-09-11 1985-09-18 Honeywell Inf Systems PERFECTED MATRIX PRINTER HEAD

Also Published As

Publication number Publication date
EP0026623A1 (en) 1981-04-08
GB2015931A (en) 1979-09-19
EP0026623B1 (en) 1988-01-07

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930308