GB2015931A - Matrix print head assembly - Google Patents

Matrix print head assembly

Info

Publication number
GB2015931A
GB2015931A GB7908202A GB7908202A GB2015931A GB 2015931 A GB2015931 A GB 2015931A GB 7908202 A GB7908202 A GB 7908202A GB 7908202 A GB7908202 A GB 7908202A GB 2015931 A GB2015931 A GB 2015931A
Authority
GB
United Kingdom
Prior art keywords
armature
members
head assembly
print head
print
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.)
Granted
Application number
GB7908202A
Other versions
GB2015931B (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(A) "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

Landscapes

  • Impact Printers (AREA)

Abstract

A wire matrix print head assembly (20) having a plurality of circumferentially spaced armature members (69) in which each armature member is operatively associated with a pair of radially spaced magnetic pole members and a coil (72) associated therewith, each armature member being mounted between the pole members and the wire printing members (54) with the end surfaces of the pole members facing the direction of movement of the armatures during printing movement from a non-print position to a print-position, the inner pole member end surface providing a pivotal support for the armature member and also providing locating means engageable with a portion of the armature housing opposite thereto.
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 true GB2015931A (en) 1979-09-19
GB2015931B 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)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137142A (en) * 1983-03-31 1984-10-03 Dca Design Consult Ticket Printer
GB2191445A (en) * 1986-06-11 1987-12-16 Russet Instr Plc A print head for dot matrix printer
EP0026623B1 (en) * 1978-03-10 1988-01-07 Dh Technology, Inc. Wire matrix print head assembly

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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026623B1 (en) * 1978-03-10 1988-01-07 Dh Technology, Inc. Wire matrix print head assembly
GB2137142A (en) * 1983-03-31 1984-10-03 Dca Design Consult Ticket Printer
GB2191445A (en) * 1986-06-11 1987-12-16 Russet Instr Plc A print head for dot matrix printer
US4828409A (en) * 1986-06-11 1989-05-09 Russet Instruments Plc Print head
GB2191445B (en) * 1986-06-11 1990-09-19 Russet Instr Plc A print head

Also Published As

Publication number Publication date
GB2015931B (en) 1982-09-08
EP0026623A1 (en) 1981-04-08
EP0026623B1 (en) 1988-01-07

Similar Documents

Publication Publication Date Title
GB1494935A (en) Wire matrix ballistic impact print head
IE801856L (en) Linear motor
ATE84468T1 (en) MATRIX PIN PRINT HEAD OF FLAP ANCHOR DESIGN.
DE3864587D1 (en) NEEDLE PRINT HEAD WITH FOLDING ARM MAGNET.
US4661002A (en) Dot matrix printer
EP0274117B1 (en) Print head incorporating a one piece armature
GB2015931A (en) Matrix print head assembly
GB1531789A (en) Electromagnetic actuator for a printing or punching devic
JPS5649279A (en) Releasing type printer head
DE3579487D1 (en) MATRIX PRINT HEAD.
US4302114A (en) Electromagnetic wire printer
FR2234755A5 (en) Electrodynamic percussion marking system - has stylo point coils working in magnetic field in air gap
JPS5561485A (en) Printing head for wire printer
FR2419166A1 (en) DIE PRINT HEAD ASSEMBLY
JPS5627363A (en) Wire dot printing head
JPS56162669A (en) Printing head of dot printer
DE3889662D1 (en) Folding anchor type matrix needle printhead.
JPS5793168A (en) Wire dot type printer head
JPS5686770A (en) Printing wire driving device
GB2120019A (en) Combined linear motor and carriage
JPS57163578A (en) Wire printing head
JPS6052360A (en) Dot impact printing head
JPS55164170A (en) Printing head for dot printer
JPS5677166A (en) Impact-type dot printing head
EP0198650A3 (en) Dot matrix print head

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