EP0064143A2 - Dispositif pour éviter tout contact indésirable entre le matériau de transfert d'impression et le papier dans des imprimantes à chaîne - Google Patents

Dispositif pour éviter tout contact indésirable entre le matériau de transfert d'impression et le papier dans des imprimantes à chaîne Download PDF

Info

Publication number
EP0064143A2
EP0064143A2 EP82101863A EP82101863A EP0064143A2 EP 0064143 A2 EP0064143 A2 EP 0064143A2 EP 82101863 A EP82101863 A EP 82101863A EP 82101863 A EP82101863 A EP 82101863A EP 0064143 A2 EP0064143 A2 EP 0064143A2
Authority
EP
European Patent Office
Prior art keywords
paper
line
type tape
ribbon
tape printer
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
EP82101863A
Other languages
German (de)
English (en)
Other versions
EP0064143A3 (en
EP0064143B1 (fr
Inventor
Horst Ing. Grad. Heinrich
Günther Reimer Ing. grad. Herrmann
Manfred Ing. Grad. Schmidt
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.)
IBM Deutschland GmbH
International Business Machines Corp
Original Assignee
IBM Deutschland GmbH
International Business Machines 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 IBM Deutschland GmbH, International Business Machines Corp filed Critical IBM Deutschland GmbH
Publication of EP0064143A2 publication Critical patent/EP0064143A2/fr
Publication of EP0064143A3 publication Critical patent/EP0064143A3/de
Application granted granted Critical
Publication of EP0064143B1 publication Critical patent/EP0064143B1/fr
Expired legal-status Critical Current

Links

Images

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
    • B41J1/00—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
    • B41J1/20—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on endless bands or the like
    • 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
    • B41J31/00—Ink ribbons; Renovating or testing ink ribbons
    • B41J31/12—Ink ribbons having arrangements to prevent undesired contact between the impression-transfer material and machine parts or other articles

Definitions

  • the invention relates to a type tape printer with a continuous endless type tape or a type chain and stop hammers which are struck against the types and cause the impression by means of an ink ribbon guided in parallel between the paper and the type lines.
  • the invention is based on the object with a type plate b a n ddrucker to ensure that no undesired contact and thus no soiling of the paper occurs between the paper and the ink ribbon, even if the gap between the types and the print hammers, through which the Paper and ribbon are relatively small. This object has been achieved by the training according to claim 1.
  • An intermediate belt is also provided there, but rotates between the rotating type belt and the pressure abutment.
  • the type tape is exposed to a certain amount of abrasion, particularly at the printing abutment, since the Eand is dragged there at high speed.
  • the purpose of the aforementioned intermediate belt, which is preferably made of flexible metal, is to prevent or reduce this abrasion. This version is therefore only effective in the type tape / print abutment area and has no effect on the interaction of paper and ink ribbon.
  • the arrangement according to the invention is effective directly between the paper and the ink ribbon and ensures that the paper to be printed remains separated from the ink ribbon at all times, except when the types are being imprinted, and therefore no contamination can occur on the paper.
  • the arrangement according to the invention also makes it easier to insert the ribbon between paper and type ribbon.
  • the invention also achieves a certain braking effect on the paper, so that there is a uniform pretension which counteracts the flutter when the paper is fed.
  • Another advantage of the invention is that the partition plate can be retrofitted into a type tape printer without difficulty.
  • the in Figs. 1 and 2 type tape printing unit contains an endless type tape 1 made of steel, each with a track for the types 2 and the time stamps 3.
  • the type tape 1 is guided over a drive roller 4 and over a tension roller 5.
  • a synchronous motor 6 is used to drive the type belt 1 and is effective on the drive roller 4 via a toothed belt 7, a toothed belt pulley 8 and a drive shaft 9.
  • a non-ferrous metal pressure abutment 10 is arranged within the type band loop and serves to guide the type band 1 and as a pressure abutment for the print hammers 11, which are arranged on the rear side of the printing unit in a print hammer unit 12.
  • the paper 13 is guided in the gap between the print hammers 11 and the type tape 1 and receives its feed by means of spike wheels 14 driven in the direction of the arrow second coil 17 is moved back and forth.
  • Magnetic scanners 18 control the switching of the ink ribbon 15 when the respective supply spool is almost empty or the respective take-up spool is full.
  • a hammer plate 19 is arranged on the front of the print hammer unit 12 in a vertical orientation.
  • a cutout 20 in the hammer plate 19 for the heads 11a of the print hammers 11 enables them to be actuated in the direction of the type tape 1 and the pressure abutment 10.
  • a separating plate 21 is attached to a frame part 24 and protrudes between the paper 13 and the ink ribbon 15.
  • the partition plate 21 is, as shown in FIGS. FIGS. 2 and 3 show, provided with two longitudinal fold lines 22a, 22b and an incision 23.
  • the incision 23 is at the height of the Print line and is a small amount longer than the print hammer row, corresponding to the length of the print line. Therefore, the incision 23 is the path of the print hammers 11 to Ab - pressure types free.
  • Flap-shaped side parts 21a are formed on the separating plate 21 on both sides through the incision 23 in the separating plate 21. The side parts 21a therefore protrude on both sides of the printing line into the gap between the ink ribbon 15 and the paper 13.
  • the partition plate 21 is on the frame part 24 in a suitable manner, for. B. by means of screws (as indicated in Fig. 3) or by gluing.
  • a film made of transparent plastic z. B. a polyester film.
  • the thickness of the partition plate 21 is in the range between 0.2 and 0.5 mm and is selected so that the partition plate 21 constantly exerts sufficient force on the paper 13 under the effect of its inherent elasticity to separate it from the ink ribbon 15 and to press against the hammer plate 19.
  • the separating plate 21 has a cross section in the form of a flattened z (FIG. 2), the lowermost leg lying flat against the frame part 24 to which it is fastened, and the upper edge 23a or the fold lines 22b rest against the paper 13, pressing it against the hammer plate 19.
  • the best effect is achieved if the upper edge 23a of the separating plate 21 is arranged as close as possible to the lower edge of the printing line.
  • FIG. 2A shows an alternative embodiment of the hammer plate 19, in which the contact line of the separating plate 21 is clearly defined by a corresponding shape of the hammer plate.
  • the partition plate 21 is located here with its upper edge 23a or the bend lines 22b on the projection 19a of the hammer plate 19, whereby an improved prestressing of the paper 13 is achieved.
  • the printing process is triggered and the print hammers 11 are each struck at the point in time at which the relevant character of the ink ribbon 1 is at the printing position at which it is printed should.
  • the paper 13 executes a feed step in the direction of the arrow under the drive of the sprockets 14 and is set to the next line to be printed.
  • a brake bar 25 shown schematically in FIG. 2 pressing the paper against the hammer plate 19 is released, e.g. B. electromagnetically against a spring force, so that the paper 13 can be moved without braking.
  • the ink ribbon 15 produces discolorations on the paper 13 during the relative movements between paper 13 and ink ribbon 15, with the result that the non-printed surface areas are contaminated.
  • the separating plate presses the paper 13 in the region of the ink ribbon 15 away from it against the hammer plate 19 and thus causes the ink ribbon and paper to be separated. This separation takes place both in the edge region on both sides of the printing line due to the side parts 21a located between the paper 13 and the ink ribbon 15, and also in the entire region of the printing line and the ink ribbon 15. Soiling of the paper 13 by the ink ribbon 15 is therefore avoided.
  • Another effect is that the partition plate 21st by their constant contact with the paper 13 against the surface of the hammer plate 19 also supports the effect of the brake bar 25 and contributes to the maintenance of a certain paper tension. This applies in particular to the embodiment according to FIG. 2A. In this way, the paper guide is stabilized and the printing process is influenced favorably.

Landscapes

  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Handling Of Sheets (AREA)
  • Handling Of Continuous Sheets Of Paper (AREA)
EP82101863A 1981-04-23 1982-03-09 Dispositif pour éviter tout contact indésirable entre le matériau de transfert d'impression et le papier dans des imprimantes à chaîne Expired EP0064143B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3116137 1981-04-23
DE19813116137 DE3116137A1 (de) 1981-04-23 1981-04-23 Typenbanddrucker

Publications (3)

Publication Number Publication Date
EP0064143A2 true EP0064143A2 (fr) 1982-11-10
EP0064143A3 EP0064143A3 (en) 1983-08-10
EP0064143B1 EP0064143B1 (fr) 1986-09-10

Family

ID=6130665

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82101863A Expired EP0064143B1 (fr) 1981-04-23 1982-03-09 Dispositif pour éviter tout contact indésirable entre le matériau de transfert d'impression et le papier dans des imprimantes à chaîne

Country Status (3)

Country Link
EP (1) EP0064143B1 (fr)
JP (1) JPS57178883A (fr)
DE (2) DE3116137A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4616943A (en) * 1983-03-11 1986-10-14 Hitachi Koki Company, Limited Apparatus for preventing the rise of an ink ribbon
GB2209501A (en) * 1987-09-05 1989-05-17 Unisys Corp Document printing apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60171349U (ja) * 1984-04-20 1985-11-13 日立工機株式会社 シヤトルプリンタ
JPH0643144B2 (ja) * 1984-06-15 1994-06-08 富士通株式会社 印字装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874285A (en) * 1972-04-17 1975-04-01 Suwa Seikosha Kk Printer
FR2391851A1 (fr) * 1977-05-23 1978-12-22 Computer Peripherals Imprimante rapide
US4165188A (en) * 1977-02-17 1979-08-21 Sycor, Inc. Ribbon mask and guide for dot matrix impact printers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874285A (en) * 1972-04-17 1975-04-01 Suwa Seikosha Kk Printer
US4165188A (en) * 1977-02-17 1979-08-21 Sycor, Inc. Ribbon mask and guide for dot matrix impact printers
FR2391851A1 (fr) * 1977-05-23 1978-12-22 Computer Peripherals Imprimante rapide

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN, Band 17, Nr. 7, Dezember 1974, Seiten 1850-1851, Armonk, (USA) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4616943A (en) * 1983-03-11 1986-10-14 Hitachi Koki Company, Limited Apparatus for preventing the rise of an ink ribbon
GB2209501A (en) * 1987-09-05 1989-05-17 Unisys Corp Document printing apparatus
GB2209501B (en) * 1987-09-05 1991-10-02 Unisys Corp Document printing apparatus

Also Published As

Publication number Publication date
EP0064143A3 (en) 1983-08-10
EP0064143B1 (fr) 1986-09-10
DE3273095D1 (en) 1986-10-16
JPS57178883A (en) 1982-11-04
JPH0136435B2 (fr) 1989-07-31
DE3116137A1 (de) 1982-11-11

Similar Documents

Publication Publication Date Title
DE19504430C2 (de) Tintenstrahldrucker zum Bedrucken eines Druckmediums
DE3509414A1 (de) Thermodrucker und thermodruckverfahren
DE3424608C2 (fr)
DE3818167C2 (fr)
EP0268079B1 (fr) Dispositif pour imprimer des étiquettes dans les étiqueteuses
EP0064143B1 (fr) Dispositif pour éviter tout contact indésirable entre le matériau de transfert d'impression et le papier dans des imprimantes à chaîne
DE2516149C3 (de) Vorrichtung zum Konstanthalten des Abstandes des Druckkopfes eines Matrixdruckers vom Aufzeichnungsträger
DE3319115C2 (fr)
DE2712998A1 (de) Typenbanddrucker
DE3546694C2 (fr)
EP0019079A1 (fr) Dispositif pour positionner des documents
DE19607843A1 (de) Druckkopf mit Geberbandführung und Empfangsmediumführung
DE3509738A1 (de) Aufzeichnungsgeraet
DE3131230C2 (fr)
DE2113171B2 (de) Typenträger für eine Bandschreibmaschine
DE3922979A1 (de) Farbbandkassette fuer eine elektronische schreibmaschine
EP0096085A1 (fr) Dispositif pour serrer une tête d'impression munie d'une électrode d'écriture
DE3630782A1 (de) Schreibwerk mit endlospapier- und einzelblatt-transport
DE4435452B4 (de) Drucker
DE2942578A1 (de) Druckwerk
DE2821173C3 (de) Schnelldrucker
EP0046812B1 (fr) Procédé d'impression comprenant l'utilisation d'un cylindre d'appui pour la bande à caractères d'une imprimante ligne par ligne
DE3512266A1 (de) Automatische einzelblattzufuehrung fuer drucker
EP0217973B1 (fr) Marteau d'impression en biais pour imprimante par impact
DE3210213A1 (de) Vorrichtung fuer nadeldrucker zur einstellung des abstandes zwischen dem druckkopf und dem aufzeichnungstraeger

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB

17P Request for examination filed

Effective date: 19830218

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): DE FR GB

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REF Corresponds to:

Ref document number: 3273095

Country of ref document: DE

Date of ref document: 19861016

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910220

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19910225

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19920309

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19920321

Year of fee payment: 11

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19921130

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19931201