EP1965983B1 - Printing process applicable to printing devices with heads - Google Patents

Printing process applicable to printing devices with heads Download PDF

Info

Publication number
EP1965983B1
EP1965983B1 EP06831802A EP06831802A EP1965983B1 EP 1965983 B1 EP1965983 B1 EP 1965983B1 EP 06831802 A EP06831802 A EP 06831802A EP 06831802 A EP06831802 A EP 06831802A EP 1965983 B1 EP1965983 B1 EP 1965983B1
Authority
EP
European Patent Office
Prior art keywords
printing
ribbon
heads
print
sectors
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.)
Active
Application number
EP06831802A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1965983A1 (en
Inventor
Mirko Penzo
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.)
ITW Espana SA
Original Assignee
ITW Espana SA
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 ITW Espana SA filed Critical ITW Espana SA
Publication of EP1965983A1 publication Critical patent/EP1965983A1/en
Application granted granted Critical
Publication of EP1965983B1 publication Critical patent/EP1965983B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B41J2/325Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads by selective transfer of ink from ink carrier, e.g. from ink ribbon or sheet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J17/00Mechanisms for manipulating page-width impression-transfer material, e.g. carbon paper
    • B41J17/02Feeding mechanisms
    • B41J17/12Special adaptations for ensuring maximum life
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J33/00Apparatus or arrangements for feeding ink ribbons or like character-size impression-transfer material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J33/00Apparatus or arrangements for feeding ink ribbons or like character-size impression-transfer material
    • B41J33/14Ribbon-feed devices or mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J35/00Other apparatus or arrangements associated with, or incorporated in, ink-ribbon mechanisms

Definitions

  • the present invention is concerned with the area of printing devices equipped with various print heads, especially those for printing continuously on a web.
  • the object of the invention refers to a process for printing on an inked printing ribbon which transfers the ink to a web or substrate.
  • the invention consists of obtaining an optimised sequence of movements for advancing the ribbon in co-ordination with the print heads of the printing device in order to achieve greater speed in printing using the ribbon, reducing dead time.
  • the substrate or web to be printed is supplied from a reel operated by a step motor and with a head which prints, with the aid of an inked printing ribbon, a figure or legend for example, on the web each time the latter stops.
  • the printing ribbon is the object on which the print head initially prints to transfer the ink to the web, which moves crosswise.
  • the printing ribbon normally advances the length needed to print on the next free section to prevent overprinting on two successive sectors.
  • heads are used which are arranged uniformly and equidistantly above the place in which the ribbon advances, where all the heads work at the same time, printing in different sectors of the ribbon.
  • the heads print on the ribbon in a downward and translational movement, retracting afterwards to allow the ribbon to advance.
  • the marks obtained at the initial printing are also spaced apart, so that the ribbon must be displaced in order that the next printing takes place on the intermediate unprinted sectors between these marks (see for example GB 2 396 847 ).
  • One of the most common printing sequences used in printing devices with several heads consists of moving the ribbon step-by-step for a length that, at each step, is the same as the length of the printing sector.
  • the ribbon is printed until all its intermediate sectors between the marks already printed have been covered and the ribbon is then moved by a length that equals the addition of the distances between heads plus of one printing in order to print again on a virgin length of ribbon following the sequence described above.
  • This method of printing can be optimised since the time taken for this last movement of the ribbon is especially long and delays the continuous printing process.
  • the printing process proposed in the present invention allows printing of S sectors by means of n print heads on an inked printing ribbon from which the ink is transferred from the web which is to be printed so that a optimal use is made of the total surface of the ribbon, reducing operating times and thus giving a greater performance from the printing process.
  • the printing process applies to a printing device with n print heads whose centres are equidistant from distance d, which descend and move at each printing stroke over the ribbon, defining a printing length a that is less than or equal to the length l of the sectors S in which the printing ribbon is divided.
  • the printing process involves the following steps described below:
  • a printing process is described for application to a printing device equipped with more than two print heads ( A, B , C, D, etc ) which prints on the inked printing ribbon X below the print heads, and which moves in a longitudinal direction when the print heads (A, B, C, D , etc) are stopped and which stops when the print heads (A, B, C, D, etc) print on the same, transferring the ink to a web or substrate that moves in a crosswise direction.
  • Figure 1 shows a printing device with three print heads (A, B, C) in which it can be seen that the distance between their centres is defined by d .
  • the printing ribbon X is divided into S sectors of a l length on which the marks are printed by the heads (A, B, C) with a printing length a less than or equal to the l lenght of S sectors.
  • the formula [*] verifies that n ⁇ d/l + 1 being d ⁇ 2I.
  • Figure 1 shows that at moment t 1 the heads (A, B, C) descend and move over the ribbon, printing the marks (A 1 ), (B 1 ), (C 1 ) , each one of which with a length a , the print heads (A, B, C) then lift, allowing the subsequent movement of the ribbon, which advances a distance d+l until it stops at a later time t 2 in which the heads (A, B, C) print the marks (A 2 ), (B 2 ), (C 2 ) again on the printing ribbon X .
  • printing is carried out on the printing ribbon X divided into S sectors of l length by means of the print heads (A, B, C, D, E) .
  • the marks (A 1 ), (B 1 ,), (C 1 ), (D 1 ), (E 1 ) are printed on the same and the ribbon advances by a distance of d+l , and it stops to allow printing by the print heads (A, B, C, D, E) again for another time t 2 , giving the marks (A 2 ), (B 2 ), (C 2 ), (D 2 ), (E 2 ), and so on successively until time t 4 in which all the contiguous sectors S have been marked on the ribbon X that are leaving the printing device.
  • This succession continues indefinitely, the output of the ribbon with all its sectors S printed being assured.
  • the length of each printing a will be less than or equal to the length l of each S sector of the ribbon X .

Landscapes

  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Electronic Switches (AREA)
  • Printers Characterized By Their Purpose (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
EP06831802A 2005-12-27 2006-12-26 Printing process applicable to printing devices with heads Active EP1965983B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200503209A ES2301324B1 (es) 2005-12-27 2005-12-27 Procedimiento de impresion aplicable a dispositivo de impresion de cabezales.
PCT/IB2006/003768 WO2007074380A1 (en) 2005-12-27 2006-12-26 Printing process applicable to printing devices with heads

Publications (2)

Publication Number Publication Date
EP1965983A1 EP1965983A1 (en) 2008-09-10
EP1965983B1 true EP1965983B1 (en) 2009-04-15

Family

ID=37983458

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06831802A Active EP1965983B1 (en) 2005-12-27 2006-12-26 Printing process applicable to printing devices with heads

Country Status (7)

Country Link
EP (1) EP1965983B1 (es)
CN (1) CN101365593B (es)
AT (1) ATE428570T1 (es)
BR (1) BRPI0620792B1 (es)
DE (1) DE602006006348D1 (es)
ES (2) ES2301324B1 (es)
WO (1) WO2007074380A1 (es)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02212173A (ja) * 1989-02-13 1990-08-23 Hidekazu Yoshii 印字装置
US5140341A (en) * 1991-06-17 1992-08-18 Eastman Kodak Company Method and apparatus for thermally printing large images with small dye-donor patches
JP3510026B2 (ja) * 1995-01-12 2004-03-22 富士写真フイルム株式会社 カラーサーマルプリント方法
ES2157709B1 (es) * 1998-01-09 2002-03-01 Betaprint S L Dispositivo impresor por transferencia termica.
US6607037B2 (en) * 2001-07-24 2003-08-19 Baker Hughes Incorporated Sand control seal for subsurface safety valve
ES2238114B1 (es) * 2002-11-05 2006-11-16 Imaje Tecnologias De Codificacion, S.A. Etiquetadora de transferencia termica con control de rebobinado y metodo para la impresion multiple de etiquetas.

Also Published As

Publication number Publication date
ES2301324B1 (es) 2009-05-01
DE602006006348D1 (de) 2009-05-28
EP1965983A1 (en) 2008-09-10
ES2324496T3 (es) 2009-08-07
ES2301324A1 (es) 2008-06-16
BRPI0620792B1 (pt) 2018-02-06
CN101365593B (zh) 2011-06-29
WO2007074380A1 (en) 2007-07-05
WO2007074380A8 (en) 2008-08-07
CN101365593A (zh) 2009-02-11
ATE428570T1 (de) 2009-05-15
BRPI0620792A2 (pt) 2011-11-22

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