EP3318412B1 - Label printer for carrier-free labels - Google Patents

Label printer for carrier-free labels Download PDF

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Publication number
EP3318412B1
EP3318412B1 EP16197658.4A EP16197658A EP3318412B1 EP 3318412 B1 EP3318412 B1 EP 3318412B1 EP 16197658 A EP16197658 A EP 16197658A EP 3318412 B1 EP3318412 B1 EP 3318412B1
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EP
European Patent Office
Prior art keywords
blades
label
linerless label
linerless
ribbon
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
EP16197658.4A
Other languages
German (de)
French (fr)
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EP3318412A1 (en
Inventor
Walter Holike
Albert Gerstenecker
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.)
Mettler Toledo Albstadt GmbH
Original Assignee
Mettler Toledo Albstadt GmbH
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 Mettler Toledo Albstadt GmbH filed Critical Mettler Toledo Albstadt GmbH
Priority to EP16197658.4A priority Critical patent/EP3318412B1/en
Priority to US15/784,732 priority patent/US10265968B2/en
Priority to CN201711082964.5A priority patent/CN108068469B/en
Publication of EP3318412A1 publication Critical patent/EP3318412A1/en
Application granted granted Critical
Publication of EP3318412B1 publication Critical patent/EP3318412B1/en
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Anticipated expiration legal-status Critical

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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
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4075—Tape printers; Label printers
    • 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
    • B41J11/00—Devices or arrangementsĀ  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/66—Applications of cutting devices
    • B41J11/70—Applications of cutting devices cutting perpendicular to the direction of paper feed
    • 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
    • B41J11/00—Devices or arrangementsĀ  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/66—Applications of cutting devices
    • B41J11/70—Applications of cutting devices cutting perpendicular to the direction of paper feed
    • B41J11/703—Cutting of tape
    • 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
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
    • 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
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
    • B41J15/048—Conveyor belts or like feeding devices
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0201—Label sheets intended to be introduced in a printer, e.g. laser printer
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0225—Carrier web
    • G09F2003/0229—Carrier roll
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/08—Fastening or securing by means not forming part of the material of the label itself
    • G09F3/10—Fastening or securing by means not forming part of the material of the label itself by an adhesive layer

Definitions

  • the invention relates to a method for printing and separating carrierless labels for a label printer.
  • Label printers are often used in conjunction with an inspection device, e.g. a balance used. This combination is widely used in shops where the customer puts his goods (vegetables, fruits, meat, etc.) on the scales and weighs them. After entering a number corresponding to the product, the balance calculates the purchase price of the weighed goods and prints the price label via the connected label printer.
  • an inspection device e.g. a balance used. This combination is widely used in shops where the customer puts his goods (vegetables, fruits, meat, etc.) on the scales and weighs them. After entering a number corresponding to the product, the balance calculates the purchase price of the weighed goods and prints the price label via the connected label printer.
  • label printers there are various types divided by type of label.
  • labels that are glued to a carrier foil and are detached after printing and output through an opening slit. The customer removes the label from the printer and sticks it to the goods to be labeled by him.
  • This type of label is always the same size, which dictates the space for printing.
  • the carrier foil must be rolled up again after the label has been detached, say in the label printer itself.
  • Another disadvantage of this type of labels is the difficulty of changing or inserting a new roll of labels as well as the need to recognize the label on the carrier film and an associated synchronization of the feed unit with the printing unit.
  • strapless labels have been developed.
  • This type of label unlike labels on carrier sheets, requires a cutter which separates the printed carrier label from the unprinted carrier label tape. Upon contact of the blades of the cutter with the label paper, adhesive residues may adhere to the blades which, over time, reduce the cutting performance so that unclean cuts may occur or the cutter may even jam.
  • the adhesive is not applied continuously to the label paper, but intermittently, which are used to separate the label at this point.
  • This has the disadvantage that here, too Size of the label is specified, ie the label is always separated at the next interruption of the adhesive.
  • more and less label paper is used, but usually more than necessary.
  • a synchronization between the feed unit and the cutting unit ensures that separation takes place only at the points of interruption. This is usually achieved by marking on the strapless label tape.
  • the application of the mark and the application of the adhesive with interruptions increase the cost of label paper in its production enormously.
  • label paper with not fully applied adhesive which means that the adhesive has a pattern of adhesive and glue-free areas. These patterns may be similar to hatching, for example fine webs running at about 45 Ā° to the carrierless label web, crossed webs or webs in V form.
  • the document JP 2004 148442 A discloses a method of printing and separating carrierless labels for a label printer.
  • the cutter of the label printer has two blades arranged on both sides of the carrierless label tape.
  • the shaping of the blades prevents accumulation of adhesive on the cutting edges of the blades.
  • the object of the invention is to provide a method that overcomes the disadvantages of the prior art, i. that the label can be separated at any point without the cutting line of the blade or the label printer is reduced and can be dispensed wetting the blades with oil.
  • the method of printing and separating carrierless labels for a label printer having a printing unit, a receptacle of the strapless label tape, a cutter having at least two blades disposed on either side of the carrierless label tape, and a feed unit at least follow the steps below.
  • Advancing the Sutikettenbands means of the feed unit by the printing unit and by the cutting device.
  • a partial printing of the carrierless label tape during advancement by means of the printing unit takes place.
  • the printed carrier label is separated from the carrierless label tape by moving the blades together. A moving apart of the blades brings them to a starting position for re-separation.
  • the straps of the straps are retracted from the blades. This creates a gap between the strapless label tape and the blades.
  • the method achieves economical consumption of label paper, as both the cut can not be made farther than necessary, and the start of new label printing can begin nearer the severed end of the unprinted liner label tape.
  • the moving apart of the two blades takes place as soon as there is no contact between the strapless label tape and the blades. This shortens the time for executing the method by simultaneously performing two method steps.
  • the printing unit has a print head, wherein the maximum distance between the strapless label tape and the blades after retraction corresponds to the distance between the print head and the blades.
  • the inventive method can also be characterized in that the two blades of the cutting device in the separation process cut through the strapless Lotetikettenband in its entire width.
  • the two blades of the cutting device in the separation process come only selectively in contact with the Stromlosetikettenband and thereby cut the Stromlosetikettenband (7) between an acute angle.
  • the blades perform a linear motion during the separation process. This also increases the life of the blades and reduces the adhesion of adhesive. This type of severing also requires less force to sever the strapping label tape.
  • the label printer further comprises a support element with a sensor on which a separated carrier label falls after separation.
  • one of the two blades is fixedly connected to the label printer and the other blade is arranged to be movable relative to the label printer.
  • the fixed blade may be disposed near the support member so that after the blades collapse, the fixed blade is between the movable blade and the support member.
  • the movable blade is arranged in the discharge direction of the carrier lot label in front of the fixed blade.
  • a signal for initiating retraction of the carrierless label tape is output.
  • the label printer in this case has a printing unit, a cutting device with at least two blades, a receptacle of the carrier label tape, and a feed unit.
  • FIGS. 1 to 4 show a label printer in the steps of the method for printing and separating carrier label for a label printer.
  • Label printing is presented in a simplified way, as it does not affect the specific design.
  • the label printer 1 shown has a printing unit 2, a cutting device 3 with at least two blades 4 and 5, a receptacle 6 for a roll of the Sulosetikettenbandes 7, and a feed unit 8.
  • the label printer 1 may have a support element 10 with a sensor 11.
  • the printing unit 2 is arranged above the feed unit 8, wherein the feed unit 8 is combined here with the pressure roller at the same time.
  • the feed unit can also have several rollers than in FIG. 1 shown.
  • the black square within the printing unit 2 represents the location of the printing process (print head).
  • the blade 5 is shown as fixed, and with the blades 4, 5 moved together, it is arranged between the support element 10 and the movable blade 4.
  • the FIG. 1 shows a label printer 1 when printing the Sulosetikettenbandes 7.
  • the print head of the printing unit 2 represented by the black square symbolizes the place of printing.
  • 8 is printed line by line on the Stromlosetikettenband 7 so by means of the feed unit.
  • the printed information may, for example, have been transmitted from a scale (not shown) to the label printer 1.
  • the Strapless label tape 7 placed in the position at which the carrier label is to be separated from the strapless label tape 7.
  • the carrierless label 9 is separated from the carrierless label tape 7 by the cutting unit 4 by the two blades 4 and 5 of the cutting unit 3 moving together, as indicated by the two arrows to the left of the blades 4 and 5.
  • the carrier lot label 9 is no longer connected to the strapless label tape 7 and protrudes on the outside of the label printer 1 out to be removed.
  • the strapless label tape 7 is now in contact with the blade 5 on the inside.
  • the farthest distance z is achieved when the carrierless label tape 7 is pulled back to the print head of the printing unit 2. Expressed in numbers, the distance z is 0.5 to 5 cm.
  • FIG. 4 Finally, the blades 4 and 5 are moved apart again, which is also indicated here by the two arrows left of the blades 4 and 5.
  • the separated carrier lot label 9 can now be mounted on the object to be marked.
  • An issue of a new strapless label can now start again, with off FIG. 4 it will be appreciated that the start of the new label printing may begin closer to the severed end of the unprinted, strapless label tape 7. In this way, the method can be achieved an economical consumption of label paper.
  • the printed carrier label 9 If the printed carrier label 9 is not removed by the user, it falls onto a storage element 10.
  • a sensor 11 detects whether there is a carrier lot label 9 on the storage element 10. The signal from the sensor 11 may be used to prevent subsequent output of a carrier lot label from starting before the newly printed carrier lot label 9 has been removed. This will prevent two strapless labels from sticking to each other.
  • sensor 11 As sensor 11, a wide variety of types can be used, for example of the type reflection light barrier.
  • FIG. 5 illustrates the process with its steps again in a flow chart.
  • the characterizing step of the process, the retraction, is shown in dashed lines.
  • FIG. 6 shows a label printer 1 'in the process of retraction in which the feed unit 8' has two opposing roles.
  • the method shown here can be used not only in label printers for scales, but also in other control devices in which the result of the control is confirmed with a label. Also possible is the use of the method in an automated packaging system, where the label is fully automatically attached to the controlled goods.

Landscapes

  • Handling Of Sheets (AREA)
  • Printers Characterized By Their Purpose (AREA)
  • Labeling Devices (AREA)

Description

Technisches GebietTechnical area

Die Erfindung betrifft ein Verfahren zum Bedrucken und Abtrennen von trƤgerlosen Etiketten fĆ¼r einen Etikettendrucker.The invention relates to a method for printing and separating carrierless labels for a label printer.

Stand der TechnikState of the art

Etikettendrucker werden hƤufig zusammen mit einem InspektionsgerƤt, z.B. einer Waage verwendet. Weit verbreitet ist diese Kombination in EinkaufslƤden wo der Kunde seine Ware (GemĆ¼se, FrĆ¼chte, Fleisch, etc.) selbst auf die Waage legt und diese wiegt. Die Waage berechnet nach Eingabe einer der Ware entsprechenden Nummer den Kaufpreis der gewogenen Ware und lƤsst Ć¼ber den angeschlossenen Etikettendrucker das Preisetikett drucken.Label printers are often used in conjunction with an inspection device, e.g. a balance used. This combination is widely used in shops where the customer puts his goods (vegetables, fruits, meat, etc.) on the scales and weighs them. After entering a number corresponding to the product, the balance calculates the purchase price of the weighed goods and prints the price label via the connected label printer.

Unter den Etikettendrucker gibt es verschiedene Typen unterteilt nach Art der Etikette. Zum einen gibt es Etiketten, die auf einer TrƤgerfolie aufgeklebt sind und nach dem Bedrucken abgelƶst und durch einen Ɩffnungsschlitz ausgegeben werden. Der Kunde entnimmt dem Drucker das Etikett und klebt es auf die von Ihm zu kennzeichnende Ware. Diese Art von Etikett hat immer dieselbe Grƶsse, wodurch der Platz zum Bedrucken vorgegeben ist. Die TrƤgerfolie muss nach dem Ablƶsen des Etiketts, meinst im Etikettendrucker selbst, wieder aufgerollt werden. Ein weiterer Nachteil dieser Art von Etiketten ist das erschwerte Wechseln bzw. Einlegen einer neuen Rolle mit Etiketten sowie die Notwendigkeit einer Erkennung des Etiketts auf der TrƤgerfolie und einer damit verbundenen Synchronisation der Vorschubeinheit mit der Druckeinheit.Among the label printers, there are various types divided by type of label. On the one hand, there are labels that are glued to a carrier foil and are detached after printing and output through an opening slit. The customer removes the label from the printer and sticks it to the goods to be labeled by him. This type of label is always the same size, which dictates the space for printing. The carrier foil must be rolled up again after the label has been detached, say in the label printer itself. Another disadvantage of this type of labels is the difficulty of changing or inserting a new roll of labels as well as the need to recognize the label on the carrier film and an associated synchronization of the feed unit with the printing unit.

Um den Nachteil einer TrƤgerfolie zu Ć¼berwinden wurden TrƤgerlosetiketten entwickelt. Dabei handelt es sich um ein Etikettenpapier, das auf einer Seite mit einem Kleber versehen ist. Diese Art von Etiketten benƶtigt im Gegensatz zu Etiketten auf TrƤgerfolien eine Schneideinrichtung, die das bedruckte TrƤgerlosetikett vom unbedruckten TrƤgerlosetikettenband abtrennt. Beim Kontakt der Klingen der Schneideinrichtung mit dem Etikettenpapier kƶnnen KleberrĆ¼ckstƤnde an den Klingen haften bleiben, welche im Verlaufe der Zeit die Schneidleistung vermindern, so dass es zu unsauberen Schnitten kommen kann oder die Schneideinrichtung sogar verklemmt.To overcome the disadvantage of a carrier film, strapless labels have been developed. This is a label paper, which is provided on one side with an adhesive. This type of label, unlike labels on carrier sheets, requires a cutter which separates the printed carrier label from the unprinted carrier label tape. Upon contact of the blades of the cutter with the label paper, adhesive residues may adhere to the blades which, over time, reduce the cutting performance so that unclean cuts may occur or the cutter may even jam.

Nach heutigem Stand der Technik sind zwei Lƶsungen bekannt um dem Verkleben der Klingen entgegenzuwirken. Zum einen wird der Kleber nicht durchgehend auf das Etikettenpapier aufgetragen, sondern mit Unterbrechungen, die dazu genutzt werden das Etikett an dieser Stelle abzutrennen. Dies hat den Nachteil dass auch hier die Grƶsse des Etiketts vorgegeben ist, d.h. das Etikett wird immer an der nƤchstfolgenden Unterbrechung des Klebers abgetrennt. Je nach Intervall von Kleber und Unterbrechung wird einmal mehr und ein anderes Mal weniger Etikettenpapier verwendet, jedoch in der Regel immer mehr als nƶtig. Zudem ist dabei eine Synchronisation zwischen Vorschubeinheit und Schneideinheit sicherstellen, dass nur an den Stellen einer Unterbrechung eine Abtrennung erfolgt. Dies wird meist durch eine Markierung auf dem TrƤgerlosetikettenband erreicht. Das Anbringen der Markierung und das Aufbringen des Klebers mit Unterbrechungen verteuern allerdings das Etikettenpapier in dessen Herstellung enorm.According to the current state of the art, two solutions are known to counteract the sticking of the blades. On the one hand, the adhesive is not applied continuously to the label paper, but intermittently, which are used to separate the label at this point. This has the disadvantage that here, too Size of the label is specified, ie the label is always separated at the next interruption of the adhesive. Depending on the interval of glue and interruption, more and less label paper is used, but usually more than necessary. In addition, a synchronization between the feed unit and the cutting unit ensures that separation takes place only at the points of interruption. This is usually achieved by marking on the strapless label tape. However, the application of the mark and the application of the adhesive with interruptions increase the cost of label paper in its production enormously.

Ebenfalls bekannt ist Etikettenpapier mit nicht vollflƤchig aufgetragenem Kleber, das heisst, dass der Kleber ein Muster von Kleber und kleberfreien Stellen aufweist. Diese Muster kƶnnen Ƥhnlich einer Schraffur sein, zum Beispiel feine um ca. 45Ā° zum TrƤgerlosetikettenband verlaufende Bahnen, gekreuzte Bahnen oder Bahnen in V-Form.Also known is label paper with not fully applied adhesive, which means that the adhesive has a pattern of adhesive and glue-free areas. These patterns may be similar to hatching, for example fine webs running at about 45 Ā° to the carrierless label web, crossed webs or webs in V form.

In einer anderen Lƶsung gemƤss EP 1 621 465 A2 oder JP 2015 221 487 A1 werden die Klingen mit einem Ɩl benetzt, das das Anhaften von Kleber vermindert. Mindestens eine der Klingen taucht dabei in ein Ɩlbad oder wird an einem mit Ɩl getrƤnkten Kissen vorbeigefĆ¼hrt wodurch die Klinge mit Ɩl benetzt wird. Dabei ist offensichtlich, dass das Etikett nach dem Abtrennen auch ƖlrĆ¼ckstƤnde aufweist, was zum einen die Haftung an der Aufklebestelle vermindert (das Etikett kann leichter abgelƶst werden) und zum anderen ist es dem Kunden nicht zuzumuten, dass dessen Finger in Kontakt mit dem Ɩl kommen.In another solution according to EP 1 621 465 A2 or JP 2015 221 487 A1 The blades are wetted with an oil which reduces the adhesion of adhesive. At least one of the blades dips into an oil bath or is led past an oil-soaked pad which wets the blade with oil. It is obvious that the label after removal also has oil residues, which on the one hand reduces the adhesion to the place of attachment (the label can be easily peeled off) and on the other hand, it is the customer not to be expected that his fingers come into contact with the oil ,

Das Dokument JP 2004 148442 A offenbart ein Verfahren zum Bedrucken und Abtrennen von TrƤgerlosetiketten fĆ¼r einen Etikettendrucker. Die Schneideinrichtung des Etikettendruckers weist zwei auf beiden Seiten des TrƤgerlosetikettenbandes angeordnete Klingen auf. Die Formgebung der Klingen verhindert eine Ansammlung von Klebemasse an den Schneidkanten der Klingen.The document JP 2004 148442 A discloses a method of printing and separating carrierless labels for a label printer. The cutter of the label printer has two blades arranged on both sides of the carrierless label tape. The shaping of the blades prevents accumulation of adhesive on the cutting edges of the blades.

Aufgabe der Erfindung ist es ein Verfahren zu schaffen, dass die Nachteile des Standes der Technik Ć¼berwindet, d.h. dass das Etikett an jeder beliebigen Stelle abgetrennt werden kann ohne dass dabei die Schnittleitung der Klinge bzw. des Etikettendruckers vermindert wird und dabei auf eine Benetzung der Klingen mit Ɩl verzichtet werden kann.The object of the invention is to provide a method that overcomes the disadvantages of the prior art, i. that the label can be separated at any point without the cutting line of the blade or the label printer is reduced and can be dispensed wetting the blades with oil.

Diese Aufgabe wird gelƶst durch das Verfahren gemƤss Anspruch 1. Das Verfahren zum Bedrucken und Abtrennen von TrƤgerlosetiketten fĆ¼r einen Etikettendrucker, der eine Druckeinheit, eine Aufnahme des TrƤgerlosetikettenbandes, eine Schneideinrichtung mit mindestens zwei auf jeweils beiden Seiten des TrƤgerlosetikettenbandes angeordneten Klingen, und eine Vorschubeinheit aufweist, fĆ¼hrt mindestens die nachfolgenden Schritte aus. Ein Vorschieben des TrƤgerlosetikettenbands mittels der Vorschubeinheit durch die Druckeinheit und durch die Schneideinrichtung. Dabei erfolgt zwischenzeitlich ein teilweises Bedrucken des TrƤgerlosetikettenbandes wƤhrend des Vorschiebens mittels der Druckeinheit. Ist das Bedrucken abgeschlossen erfolgt ein Abtrennen des bedruckten TrƤgerlosetiketts vom TrƤgerlosetikettenband mittels Zusammenfahren der Klingen. Ein Auseinanderfahren der Klingen bringt diese in eine Ausgangsposition zum erneuten Abtrennen.This object is achieved by the method of claim 1. The method of printing and separating carrierless labels for a label printer having a printing unit, a receptacle of the strapless label tape, a cutter having at least two blades disposed on either side of the carrierless label tape, and a feed unit , at least follow the steps below. Advancing the TrƤgerlosetikettenbands means of the feed unit by the printing unit and by the cutting device. In the meantime, a partial printing of the carrierless label tape during advancement by means of the printing unit takes place. When printing is completed, the printed carrier label is separated from the carrierless label tape by moving the blades together. A moving apart of the blades brings them to a starting position for re-separation.

ErfindungsgemƤss erfolgt vor dem Schritt des Auseinanderfahrens der Klingen ein ZurĆ¼ckziehen des TrƤgerlosetikettenbandes von den Klingen. Es entsteht so ein Abstand zwischen dem TrƤgerlosetikettenband und den Klingen.According to the invention, before the step of moving the blades apart, the straps of the straps are retracted from the blades. This creates a gap between the strapless label tape and the blades.

Eine Analyse des Problems des Anhaftens von Kleber an den Klingen hat gezeigt, dass beim Auseinanderfahren der Klingen das unbedruckte TrƤgerlosetikettenband an der Klinge streift und so der Kleber auf die Klingen gelangt. Das ZurĆ¼ckziehen des Bandes, bevor die Klingen zurĆ¼ck in die Position zum erneuten Abtrennen gefĆ¼hrt werden, verhindert wirkungsvoll das Anhaften von Kleber an den Klingen. Das Erfinderische Verfahren erreicht dadurch eine unverminderte Schnittleistung.An analysis of the problem of glue sticking to the blades has shown that as the blades move apart, the unprinted, strapless label tape rubs against the blade, causing the glue to get on the blades. Retracting the tape before the blades are returned to the re-severing position effectively prevents adhesive from adhering to the blades. The inventive method thereby achieves undiminished cutting performance.

Weiter erreicht das Verfahren einen sparsamen Verbrauch von Etikettenpapier, da sowohl der Schnitt nicht weiter entfernt als nƶtig angesetzt werden kann, als auch der Start des neuen Etikettendrucks nƤher am abgetrennten Ende des unbedruckten TrƤgerlosetikettenbands beginnen kann.Further, the method achieves economical consumption of label paper, as both the cut can not be made farther than necessary, and the start of new label printing can begin nearer the severed end of the unprinted liner label tape.

In einer Weiterbildung des erfinderischen Verfahrens erfolgt das Auseinanderfahren der beiden Klingen, sobald kein Kontakt mehr zwischen dem TrƤgerlosetikettenband und den Klingen besteht. Dadurch verkĆ¼rzt sich die Zeit zum AusfĆ¼hren des Verfahrens durch gleichzeitiges AusfĆ¼hren zweier Verfahrensschritte.In a further development of the inventive method, the moving apart of the two blades takes place as soon as there is no contact between the strapless label tape and the blades. This shortens the time for executing the method by simultaneously performing two method steps.

In einer weiteren Weiterbildung des erfinderischen Verfahrens weist die Druckeinheit einen Druckkopf auf, wobei der maximale Abstand zwischen TrƤgerlosetikettenband und den Klingen nach dem ZurĆ¼ckziehen der Distanz zwischen dem Druckkopf und den Klingen entspricht.In a further development of the inventive method, the printing unit has a print head, wherein the maximum distance between the strapless label tape and the blades after retraction corresponds to the distance between the print head and the blades.

Das erfinderische Verfahren kann zudem dadurch gekennzeichnet sein, dass die zwei Klingen der Schneideinrichtung beim Abtrennvorgang das TrƤgerlosetikettenband in dessen ganzen Breite durchtrennen.The inventive method can also be characterized in that the two blades of the cutting device in the separation process cut through the strapless Lotetikettenband in its entire width.

In einer zusƤtzlichen Weiterbildung des Verfahrens kommen die zwei Klingen der Schneideinrichtung beim Abtrennvorgang nur punktuell in Kontakt mit dem TrƤgerlosetikettenband und schneiden dabei das TrƤgerlosetikettenband (7) zwischen einem spitzen Winkel. Zum Beispiel fĆ¼hren die Klingen beim Abtrennvorgang eine Linearbewegung aus. Dadurch wird zusƤtzlich die Lebensdauer der Klingen erhƶht und das Anhaften von Kleber vermindert. Diese Art des Abtrennens benƶtigt auch weniger Kraft um das TrƤgerlosetikettenband zu durchtrennen.In an additional development of the method, the two blades of the cutting device in the separation process come only selectively in contact with the TrƤgerlosetikettenband and thereby cut the TrƤgerlosetikettenband (7) between an acute angle. For example, the blades perform a linear motion during the separation process. This also increases the life of the blades and reduces the adhesion of adhesive. This type of severing also requires less force to sever the strapping label tape.

In einer weiteren Weiterentwicklung des Verfahrens weist der Etikettendrucker ferner ein Auflageelement mit einem Sensor auf, auf das ein abgetrenntes TrƤgerlosetikett nach dem Abtrennen fƤllt. Durch das Signal des Sensors erfolgt die Freigabe fĆ¼r die nachfolgende Ausgabe eines TrƤgerlosetiketts erst, wenn auf dem Ablageelement kein TrƤgerlosetikett liegt. Auf diese Weise wird verhindert, dass zwei TrƤgerlosetiketts aneinander festkleben.In a further development of the method, the label printer further comprises a support element with a sensor on which a separated carrier label falls after separation. By the signal of the sensor, the release for the subsequent issue of a carrier label takes place only when there is no TrƤgerlosetikett on the storage element. This will prevent two strapless labels from sticking to each other.

In einer Ausgestaltung ist eine der zwei Klingen fest mit dem Etikettendrucker verbunden und die andere Klinge gegenĆ¼ber dem Etikettendrucker beweglich angeordnet. Weiter kann die feststehende Klinge nahe dem Auflageelement angeordnet sein, so dass nach dem Zusammenfahren der Klingen sich die feststehende Klinge zwischen der beweglichen Klinge und dem Auflageelement befindet.In one embodiment, one of the two blades is fixedly connected to the label printer and the other blade is arranged to be movable relative to the label printer. Further, the fixed blade may be disposed near the support member so that after the blades collapse, the fixed blade is between the movable blade and the support member.

In einer weiteren Ausgestaltung ist die bewegliche Klinge in Ausgaberichtung des TrƤgerlosetiketts vor der feststehenden Klinge angeordnet.In a further embodiment, the movable blade is arranged in the discharge direction of the carrier lot label in front of the fixed blade.

In einem computergestĆ¼tztem Programm zur AusfĆ¼hrung des Verfahrens zum Bedrucken und Abtrennen von TrƤgerlosetiketten wird ein Signal zur Auslƶsung eines ZurĆ¼ckziehens des TrƤgerlosetikettenbandes zur Ausgabe gebracht. Der Etikettendrucker weist dabei eine Druckeinheit, eine Schneideinrichtung mit mindestens zwei Klingen, eine Aufnahme des TrƤgerlosetikettenbandes, und eine Vorschubeinheit auf.In a computer-aided program for carrying out the method of printing and separating carrierless labels, a signal for initiating retraction of the carrierless label tape is output. The label printer in this case has a printing unit, a cutting device with at least two blades, a receptacle of the carrier label tape, and a feed unit.

Kurzbeschreibung der ErfindungBrief description of the invention

Das erfinderische Verfahren und dessen Einsatz in einem Etikettendrucker werden anhand der folgenden Figuren nƤher beschrieben, wobei gleiche Elemente mit denselben Bezugszeichen versehen sind. Es zeigen:

Fig. 1
einen Etikettendrucker beim Bedrucken und Vorschieben des TrƤgerlosetikettenbandes;
Fig. 2
den Etikettendrucker beim Abtrennen des TrƤgerlosetiketts vom TrƤgerlosetikettenband;
Fig. 3
den Etikettendrucker beim ZurĆ¼ckziehen des TrƤgerlosetikettenbandes von den Klingen der Schneideinheit;
Fig. 4
den Etikettendrucker beim Auseinanderfahren der Klingen der Schneideinheit; und
Fig. 5
ein Ablaufdiagramm mit den Schritten des Verfahrens zum Bedrucken und Abtrennen von TrƤgerlosetiketten fĆ¼r einen Etikettendrucker.
The inventive method and its use in a label printer will be described in more detail with reference to the following figures, wherein like elements are provided with the same reference numerals. Show it:
Fig. 1
a label printer when printing and advancing the strapless label tape;
Fig. 2
the label printer when separating the carrier label from the carrier label tape;
Fig. 3
the label printer when retracting the strapless label tape from the blades of the cutting unit;
Fig. 4
the label printer when moving apart the blades of the cutting unit; and
Fig. 5
a flow chart with the steps of the method for printing and separating carrier label for a label printer.

Kurze Beschreibung der ZeichnungsfigurenShort description of the drawing figures

Die Figuren 1 bis 4 zeigen einen Etikettendrucker in den Schritten des Verfahrens zum Bedrucken und Abtrennen von TrƤgerlosetiketten fĆ¼r einen Etikettendrucker. Der Etikettendrucken wird nur vereinfacht dargestellt, da es die spezifische Ausgestaltung nicht von Belang ist. Der gezeigte Etikettendrucker 1 weist eine Druckeinheit 2, eine Schneideinrichtung 3 mit mindestens zwei Klingen 4 und 5, eine Aufnahme 6 fĆ¼r eine Rolle des TrƤgerlosetikettenbandes 7, und eine Vorschubeinheit 8 auf. Zudem kann der Etikettendrucker 1 eine Auflageelement 10 mit einem Sensor 11 aufweisen. Die Druckeinheit 2 ist oberhalb der Vorschubeinheit 8 angeordnet, wobei die Vorschubeinheit 8 hier zugleich mit der Druckwalze kombiniert ist.. Die Vorschubeinheit kann auch mehrere Rollen aufweisen als in Figur 1 dargestellt. Das schwarze Quadrat innerhalb der Druckeinheit 2 stellt den Ort des Druckvorganges dar (Druckkopf).The FIGS. 1 to 4 show a label printer in the steps of the method for printing and separating carrier label for a label printer. Label printing is presented in a simplified way, as it does not affect the specific design. The label printer 1 shown has a printing unit 2, a cutting device 3 with at least two blades 4 and 5, a receptacle 6 for a roll of the TrƤgerlosetikettenbandes 7, and a feed unit 8. In addition, the label printer 1 may have a support element 10 with a sensor 11. The printing unit 2 is arranged above the feed unit 8, wherein the feed unit 8 is combined here with the pressure roller at the same time. The feed unit can also have several rollers than in FIG. 1 shown. The black square within the printing unit 2 represents the location of the printing process (print head).

VorwƤrts bedeutet hier die Richtung der Ausgabe von Etiketten. In den Figuren 1 bis 4 ist das bei Anblick eines Betrachters von links nach rechts. Dabei ist Vorne jeweils das Ende des TrƤgerlosetikettenbands 7. Da sich die oben erwƤhnten Komponenten in einem GehƤuse des Etikettendruckers befinden wird der Bereich nach den Klingen 4 und 5 als Ausserhalb und der Bereich vor den Klingen als Innerhalb angesehen, wobei die Schneideinheit selbstverstƤndlich im Inneren des GehƤuses angeordnet ist.Forward means here the direction of the output of labels. In the FIGS. 1 to 4 is that at the sight of a viewer from left to right. In this case, front is the end of the TrƤgerlosetikettenbands 7. Since the above-mentioned components are located in a housing of the label printer, the area after the blades 4 and 5 as outside and the area in front of the blades is considered inside, the cutting unit of course inside the Housing is arranged.

In den Figuren 1 bis 4 und 6 ist die Klinge 5 als feststehend gezeigt, und bei zusammengefahrenen Klingen 4, 5 zwischen dem Auflageelement 10 und der beweglichen Klinge 4 angeordnet.In the FIGS. 1 to 4 and 6 the blade 5 is shown as fixed, and with the blades 4, 5 moved together, it is arranged between the support element 10 and the movable blade 4.

Die Figur 1 zeigt einen Etikettendrucker 1 beim Bedrucken des TrƤgerlosetikettenbandes 7. Der Druckkopf der Druckeinheit 2, dargestellt durch das schwarze Quadrat symbolisiert den Ort des Bedruckens. Unter stetigem Vorschieben, das durch den runden Pfeil angedeutet wird, wird so mittels der Vorschubeinheit 8 Linie fĆ¼r Linie auf das TrƤgerlosetikettenband 7 aufgedruckt. Die aufgedruckten Informationen kƶnnen zum Beispiel von einer Waage (nicht gezeigt) an den Etikettendrucker 1 Ć¼bermittelt worden sein. Nach Beenden des Bedruckens wird das TrƤgerlosetikettenband 7 in die Position gebracht, an der das TrƤgerlosetikett vom TrƤgerlosetikettenband 7 abgetrennt werden soll.The FIG. 1 shows a label printer 1 when printing the TrƤgerlosetikettenbandes 7. The print head of the printing unit 2, represented by the black square symbolizes the place of printing. With continuous advancement, which is indicated by the round arrow, 8 is printed line by line on the TrƤgerlosetikettenband 7 so by means of the feed unit. The printed information may, for example, have been transmitted from a scale (not shown) to the label printer 1. After completing the printing, the Strapless label tape 7 placed in the position at which the carrier label is to be separated from the strapless label tape 7.

In Figur 2 wird durch die Schneideinheit 4 das TrƤgerlosetikett 9 vom TrƤgerlosetikettenband 7 abgetrennt, indem die beiden Klingen 4 und 5 der Schneideinheit 3 zusammenfahren, wie durch die beiden Pfeile links von den Klingen 4 und 5 angedeutet. Das TrƤgerlosetikett 9 ist nun nicht mehr mit dem TrƤgerlosetikettenband 7 verbunden und ragt auf der Aussenseite des Etikettendruckers 1 heraus um abgenommen werden zu kƶnnen. Das TrƤgerlosetikettenband 7 ist nun an der Innenseite mit der Klinge 5 in Kontakt.In FIG. 2 the carrierless label 9 is separated from the carrierless label tape 7 by the cutting unit 4 by the two blades 4 and 5 of the cutting unit 3 moving together, as indicated by the two arrows to the left of the blades 4 and 5. The carrier lot label 9 is no longer connected to the strapless label tape 7 and protrudes on the outside of the label printer 1 out to be removed. The strapless label tape 7 is now in contact with the blade 5 on the inside.

Im kennzeichnenden Schritt des Verfahrens wird nun, wie in Figur 3 gezeigt ist, das TrƤgerlosetikettenband 7 um eine gewisse Strecke zurĆ¼ckgezogen. Es entsteht ein Abstand z zwischen dem vorderen Ende des TrƤgerlosetikettenbandes 7 und der in das GehƤuseinnere weisenden OberflƤche der Klinge 5. Somit ist das TrƤgerlosetikettenband 7 nicht mehr in Kontakt mit der Klinge 5. Um den Abstand z herbeizufĆ¼hren wird die Vorschubeinheit 8 in die entgegengesetzte Richtung wie beim Bedrucken betrieben. Es hat sich gezeigt, dass schon ein kleiner Abstand z - so dass die Klinge 5 nicht mehr durch das TrƤgerlosetikettenband 7 berĆ¼hrt wird - ausreicht um ein Anhaften von Kleber zu verhindern. Der maximale Abstand z zur Klinge 5 ist lediglich durch die Anordnung der Druckeinheit 2 zur Schneideinheit 3 begrenzt, das heisst dass das TrƤgerlosetikettenband 7 soweit zurĆ¼ckgezogen werden kann um anschliessend wieder bedruckt werden zu kƶnnen.In the characterizing step of the method is now, as in FIG. 3 is shown, the TrƤgerlosetikettenband 7 withdrawn by a certain distance. The result is a distance z between the front end of the TrƤgerlosetikettenbandes 7 and the inside of the housing facing surface of the blade 5. Thus, the TrƤgerlosetikettenband 7 is no longer in contact with the blade 5. In order to bring about the distance z, the feed unit 8 in the opposite direction as operated when printing. It has been shown that even a small distance z - so that the blade 5 is no longer touched by the strapless label tape 7 - sufficient to prevent adhesion of adhesive. The maximum distance z to the blade 5 is limited only by the arrangement of the printing unit 2 to the cutting unit 3, which means that the TrƤgerlosetikettenband 7 can be withdrawn so far to be subsequently printed again.

Beim ZurĆ¼ckziehen sollte darauf geachtet werden, dass das TrƤgerlosetikettenband 7 nicht aus dessen FĆ¼hrung ausfƤhrt. Den weitesten Abstand z wird erreicht wenn das TrƤgerlosetikettenband 7 bis zum Druckkopf der Druckeinheit 2 zurĆ¼ckgezogen wird. In Zahlen ausgedrĆ¼ckt betrƤgt der Abstand z 0,5 bis 5 cm.When retracting care should be taken that the strapless label tape 7 does not extend out of its guide. The farthest distance z is achieved when the carrierless label tape 7 is pulled back to the print head of the printing unit 2. Expressed in numbers, the distance z is 0.5 to 5 cm.

In Figur 4 werden letztlich die Klingen 4 und 5 wieder auseinandergefahren, was auch hier durch die beiden Pfeile links von den Klingen 4 und 5 angedeutet ist. Das abgetrennte TrƤgerlosetikett 9 kann nun auf dem zu markierenden Gegenstand angebracht werden. Eine Ausgabe eines neuen TrƤgerlosetiketts kann nun wieder beginnen, wobei aus Figur 4 ersichtlich wird, dass der Start des neuen Etikettendrucks nƤher am abgetrennten Ende des unbedruckten TrƤgerlosetikettenbands 7 beginnen kann. Auf diese Weise kann durch das Verfahren ein sparsamer Verbrauch von Etikettenpapier erreicht werden.In FIG. 4 Finally, the blades 4 and 5 are moved apart again, which is also indicated here by the two arrows left of the blades 4 and 5. The separated carrier lot label 9 can now be mounted on the object to be marked. An issue of a new strapless label can now start again, with off FIG. 4 it will be appreciated that the start of the new label printing may begin closer to the severed end of the unprinted, strapless label tape 7. In this way, the method can be achieved an economical consumption of label paper.

Wird das bedruckte TrƤgerlosetikett 9 nicht durch den Benutzer entfernt fƤllt es auf ein Ablageelement 10. Ein Sensor 11 erkennt ob sich ein TrƤgerlosetikett 9 auf dem Ablageelement 10 befindet. Das Signal des Sensors 11 kann verwendet werden um zu verhindern, dass eine nachfolgende Ausgabe eines TrƤgerlosetiketts startet bevor das eben gedruckte TrƤgerlosetikett 9 entfernt wurde. Auf diese Weise wird verhindert, dass zwei TrƤgerlosetiketts aneinander festkleben.If the printed carrier label 9 is not removed by the user, it falls onto a storage element 10. A sensor 11 detects whether there is a carrier lot label 9 on the storage element 10. The signal from the sensor 11 may be used to prevent subsequent output of a carrier lot label from starting before the newly printed carrier lot label 9 has been removed. This will prevent two strapless labels from sticking to each other.

Als Sensor 11 kƶnnen verschiedenste Typen zur Anwendung kommen, zum Beispiel vom Typ Reflexionslichtschranke.As sensor 11, a wide variety of types can be used, for example of the type reflection light barrier.

Figur 5 veranschaulicht das Verfahren mit seinen Schritten nochmals in einem Flussdiagramm. Der kennzeichnende Schritt des Verfahrens, des ZurĆ¼ckziehens, ist dabei in gestrichelten Linien dargestellt. FIG. 5 illustrates the process with its steps again in a flow chart. The characterizing step of the process, the retraction, is shown in dashed lines.

Figur 6 zeigt einen Etikettendrucker 1' beim Verfahrensschritt des ZurĆ¼ckziehens bei welchem die Vorschubeinheit 8' zwei gegenlƤufige Rollen aufweist. Diese und weitere Anordnungen von Druckeinheit und Vorschubeinheit sind ebenfalls mƶglich um das erfinderische Verfahren auszufĆ¼hren. FIG. 6 shows a label printer 1 'in the process of retraction in which the feed unit 8' has two opposing roles. These and other arrangements of printing unit and feeding unit are also possible to carry out the inventive method.

NatĆ¼rlich kann das hier gezeigte Verfahren nicht nur in Etikettendrucker fĆ¼r Waagen zum Einsatz kommen, sondern auch bei anderen KontrollgerƤten bei denen das Resultat der Kontrolle mit einem Etikett bestƤtigt wird. Ebenfalls mƶglich ist der Einsatz des Verfahrens in einer automatisierten Verpackungsanlage, wo das Etikett vollautomatisiert an die kontrollierte Ware angebracht wird.Of course, the method shown here can be used not only in label printers for scales, but also in other control devices in which the result of the control is confirmed with a label. Also possible is the use of the method in an automated packaging system, where the label is fully automatically attached to the controlled goods.

Liste der BezugszeichenList of reference numbers

1,1'1,1 '
Etikettendruckerlabel printers
2,2'2,2 '
Druckeinheitprinting unit
33
Schneideinrichtungcutter
4,54.5
KlingenSound
66
Aufnahmeadmission
77
TrƤgerlosetikettenbandesTrƤgerlosetikettenbandes
8,8'8,8 '
Vorschubeinheitfeed unit
99
TrƤgerlosetikettTrƤgerlosetikett
1010
Ablageelementstorage element
1111
Sensorsensor

Claims (11)

  1. Method for a label printer (1, 1') to print and separate linerless labels, wherein the label printer (1, 1') comprises
    a printing unit (2, 2'), a holder (6) for a linerless label ribbon (7), a cutting unit (3) with at least two blades (4, 5) arranged, respectively, on the two sides of the linerless label ribbon (7), and a paper-feeding unit (8, 8'),
    wherein the method comprises the following steps:
    - by means of the paper-feeding unit (8, 8'), advancing the linerless label ribbon (7) through the printing unit (2, 2') and through the cutting unit (3);
    - during the feed advancement, printing on a part of the linerless label ribbon (7) by means of the printing unit (2, 2');
    - separating the printed linerless label (9) from the linerless label ribbon (7) by means of the blades (4, 5) closing against each other;
    - moving the blades (4, 5) apart from each other into a starting position for a next cutting operation;
    characterized in that
    prior to moving the blades (4, 5) apart from each other, the linerless label ribbon (7) is pulled back from the blades (4, 5), so that a distance (z) is created between the linerless label ribbon (7) and the blades (4, 5).
  2. Method according to claim 1, characterized in that the moving the blades (4, 5) apart from each other occurs as soon as the linerless label ribbon (7) is out of contact with the blades (4, 5).
  3. Method according to one of the claims 1 or 2, characterized in that the printing unit (2, 2') has a print head and that the maximum distance (z) of the linerless label ribbon (7) from the blades (4, 5) after the pulling back equals the distance between the print head and the blades (4, 5).
  4. Method according to one of the claims 1 to 3, characterized in that in the cutting operation the two blades (4, 5) of the cutting unit (3) sever the linerless label ribbon (7) across its entire width.
  5. Method according to one of the claims 1 to 4, characterized in that the two blades (4, 5) of the cutting unit (3) are contacting the linerless label ribbon (7) between them only in a point during the cutting process and are shearing the linerless label between them under an acute angle.
  6. Method according to claim 5, characterized in that the blades (4, 5) perform a translatory movement during the cutting process.
  7. Method according to one of the claims 1 to 6, characterized in that the label printer (1') further includes a receiving element (10) with a sensor (11) onto which a linerless label (9) falls after it has been cut, wherein in response to the signal of the sensor (11), a next-following linerless label is released for delivery if no linerless label (9) is present on the receiving element (10).
  8. Method according to one of the claims 1 to 7, characterized in that of the two blades, one blade (5) is solidly connected to the label printer (1, 1'), while the other blade (4) is arranged to be movable relative to the label printer (1, 1').
  9. Method according to claim 8, characterized in that the stationary blade (5) is arranged close to the receiving element (10), so that after the closing of the blades (4, 5) against each other the stationary blade (5) lies between the movable blade (4) and the receiving element (10).
  10. Method according to one of the claims 8 or 9, characterized in that, relative to the output direction of the linerless label, the movable blade (4) is arranged on the forward-facing side of the stationary blade (5).
  11. Computer-assisted program for the implementation of the method for a label printer (1, 1') to print and separate linerless labels according to one of the claims 1 to 10, wherein a signal is generated which serves to trigger a pulling-back movement of the linerless label ribbon (7).
EP16197658.4A 2016-11-08 2016-11-08 Label printer for carrier-free labels Active EP3318412B1 (en)

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EP16197658.4A EP3318412B1 (en) 2016-11-08 2016-11-08 Label printer for carrier-free labels
US15/784,732 US10265968B2 (en) 2016-11-08 2017-10-16 Label printer for linerless labels
CN201711082964.5A CN108068469B (en) 2016-11-08 2017-11-07 Label printer for linerless labels

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Application Number Priority Date Filing Date Title
EP16197658.4A EP3318412B1 (en) 2016-11-08 2016-11-08 Label printer for carrier-free labels

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US20180126757A1 (en) 2018-05-10
CN108068469A (en) 2018-05-25
EP3318412A1 (en) 2018-05-09
CN108068469B (en) 2021-01-26

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