EP3765299B1 - Dispositif de compensation d' usure d' une imprimante d' etiquettes - Google Patents

Dispositif de compensation d' usure d' une imprimante d' etiquettes Download PDF

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Publication number
EP3765299B1
EP3765299B1 EP19708068.2A EP19708068A EP3765299B1 EP 3765299 B1 EP3765299 B1 EP 3765299B1 EP 19708068 A EP19708068 A EP 19708068A EP 3765299 B1 EP3765299 B1 EP 3765299B1
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EP
European Patent Office
Prior art keywords
threshold value
wear compensation
electric resistance
control device
heating resistor
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EP19708068.2A
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German (de)
English (en)
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EP3765299A1 (fr
Inventor
Guillaume DE MIRANDA
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Espera Werke GmbH
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Espera Werke GmbH
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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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315—Typewriters 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
    • B41J2/32—Typewriters 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
    • B41J2/35—Typewriters 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 providing current or voltage to the thermal head
    • B41J2/355—Control circuits for heating-element selection
    • B41J2/3553—Heater resistance determination
    • 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
    • B41J2/315—Typewriters 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
    • B41J2/32—Typewriters 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
    • 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

Definitions

  • the present invention relates to a wear compensation device of a label printer according to the preamble of claim 1 and a method for wear compensation of a label printer according to the preamble of claim 12.
  • the labels in particular labels for goods, are either self-adhesive labels arranged detachably on a carrier strip or labels without a carrier (linerless labels), which are provided as an endless strand and are separated by cutting.
  • the individual labels or the endless strand are then fed to a print head, which provides the labels with an imprint that includes, for example, price and/or weight information about a product.
  • the printed labels are then subsequently removed from the print head and applied to an object, in particular a product.
  • the print head of such a label printer can be designed in different ways. In addition to an ink jet or laser print head, this can also be designed as a thermal print head, hereinafter referred to as a thermal head.
  • Thermal printing refers to a technique in which the color of a thermo-sensitive medium is changed, in particular blackened, by the selective effect of heat at the location of the heat effect. The selective heat effect is caused by one or more rows of small heating resistors, which are arranged in the thermal strip of the thermal head. Each heating resistor, also called a dot, can be controlled and heated individually.
  • thermal printing a distinction is made between direct thermal printing, thermal transfer printing and thermal sublimation printing.
  • thermal transfer printing With direct thermal printing, a thermally sensitive paper is blackened directly by the selective effect of heat at the point where the heat is applied. Special paper for direct thermal printing is also known, which produces different colors at the point where the heat is applied when exposed to different degrees of heat.
  • thermal transfer printing the paper to be printed is not fed directly past the thermal bar, but the paper is fed past the thermal bar together with a special film (transfer film), wherein the transfer foil is arranged between the paper and the thermal bar. Due to the selective heat effect, the color layer on the transfer film melts in the area where the heat is applied and is absorbed by the adjacent paper. A transfer film is also placed between the paper to be printed and the thermal bar in thermal sublimation printing.
  • the color layer on the transfer film does not melt here, but the colorant changes into the gaseous state and is absorbed by the adjacent paper.
  • a well-known problem with thermal printing is that the heating resistors age over time. The aging process is accompanied by an increase in the electrical resistance of the heating resistor(s), which means that less heat is generated (at the same current intensity and/or voltage). The result is a deterioration in the print quality on the printed labels. It is therefore necessary to replace the thermal strip after a certain period of operation, for example after an average increase in the electrical resistance of all heating resistors by 15% compared to the initial value, ie the value when the thermal strip was first put into operation. Such an exchange causes undesired downtimes of the label printer and a corresponding labeling device and leads to an increase in operating costs.
  • control device which controls the thermal head for printing the respective label, is configured to monitor the electrical resistance of one or more of the heating resistors and, if a predetermined threshold value for the electrical resistance is exceeded, the duration of the current applied to the respective heating resistor to increase printing.
  • the respective heating resistor can deliver correspondingly more energy to the thermosensitive medium of the label to be printed, which counteracts a closing-related decrease in the color change caused by the respective heating resistor, in particular blackening.
  • the fundamental consideration is to compensate for age-related wear and tear on the thermal strip and its effects by increasing the duration of the energization of the respective heating resistor. At least from a certain point in the service life of a thermal strip, the electrical resistance of the heating resistors increases with age, which means that insufficient thermal energy is introduced into the thermally sensitive medium during the standard energization period. However, if thermal energy is generated at the location of the heat effect over an extended period of time, i.e. the exposure time to the heat is extended, the color of the thermosensitive medium can change to a correspondingly greater extent, in particular blackening.
  • thermosensitive medium The stronger change in color or blackening of the thermosensitive medium is based in particular not only on the longer exposure time, but also on greater heating of the heating resistor due to the longer energization. In doing so, it is consciously accepted that the respective heating resistor is subjected to a correspondingly greater load from the point in time at which the duration of the energization is increased and ages correspondingly more quickly. In contrast, however, the impression quality can last longer at an acceptable level Level are maintained, which means that the thermal bar can be operated for longer overall. The thermal bar can then be replaced at a later point in time than is normal, which reduces the overall operating costs.
  • the resistance of all heating resistors of the thermal strip is preferably monitored. However, it is also conceivable to monitor only some of the heating resistors. In this way, the electrical resistance of the heating resistors of at least one predetermined group of heating resistors in the thermal bar can also be monitored.
  • the group of heating resistors includes, for example, those heating resistors which, because they are normally supplied with current particularly frequently, are particularly stressed and are therefore particularly susceptible to wear.
  • the voltage and/or the amperage is preferably not changed during the printing process with the increased energization duration.
  • an increase in voltage and/or an increase in current can also be provided as an additional compensation measure.
  • the electrical resistance of the respective heating resistor is preferably determined continuously, i. H. every time you turn it on.
  • the electrical resistance can also be determined at time intervals, in particular at regular time intervals or whenever there is a printing pause. For example, this can be done regularly every thousandth switch-on or once or several times per day.
  • Claims 5 and 6 define special configurations of the control device. This can have, for example, a current and/or a voltage measuring device for determining the respective electrical resistance (claim 5) and/or a comparator for comparing the respectively determined electrical resistance or resistance value with the specified threshold value (claim 6). Depending on the result of the comparison, the current supply duration can then be set, ie if the predefined threshold value has not been exceeded, the current supply duration is not changed, or if the predetermined threshold has been exceeded, the duration of energization is increased as previously described.
  • the duration of the energization is set as a function of the respectively determined electrical resistance of the respective heating resistor, the duration of the energization increasing linearly or exponentially with increasing electrical resistance.
  • the control device can determine how much the duration of current application increases with increasing electrical resistance, in particular on the basis of stored characteristic curves or characteristic diagrams.
  • the control device can have a memory for storing such characteristic curves or characteristic diagrams and/or for storing threshold values for the electrical resistance and/or for storing respectively determined resistance values for the electrical resistance.
  • the control device has a memory in which the threshold value is stored, with a separate threshold value preferably being stored for each monitored heating resistor or a common threshold value being stored for all monitored heating resistors or a common threshold value being stored for at least one group of monitored heating resistors (claim 8) .
  • the respective threshold value remains constant or is adjusted over time, in particular raised. Provision can thus be made for the control device to carry out the monitoring initially on the basis of an initial value for the threshold value and to maintain the threshold value or take it into account until it has been exceeded for the first time. As a result of the exceeding, a new threshold value is generated and, in particular, stored in the memory that replaces the previous threshold value. The previous threshold value is then overwritten. The duration of current application set because the previous threshold value was exceeded is then retained or not increased until the new threshold value has been exceeded for the first time. In principle, however, it can also be advantageous not to change the originally intended threshold value, ie the initial value, and then, after exceeding it, to always set the energization duration as a function of the electrical resistance determined in each case.
  • the control device itself can set a threshold value for the electrical resistance of the respective heating resistor when a new thermal strip has been installed.
  • the heating resistances are always different due to production-related tolerances, even with a new thermal bar, so that it can be advantageous to define an individual threshold value for each heating resistance of the thermal bar.
  • the control device can do this fully automatically, i. H. it automatically recognizes the presence of a new thermal bar and then determines the threshold value(s) without the operator having to do anything.
  • a semi-automatic definition of the threshold values is also conceivable, i. H. after a new thermal bar is installed, an operator starts a routine which the controller then automatically runs through to set the threshold value or thresholds.
  • the threshold value in particular the initial value, is in particular 1 to 20%, preferably 1 to 10%, particularly preferably 1 to 5% higher than the initial value for the electrical resistance of the respective heating resistor or than the average initial value of all monitored heating resistors.
  • the initial value means the resistance value when the thermal bar is put into operation for the first time.
  • a separate threshold value can therefore be defined for each monitored heating resistor, or a common threshold value can be defined for several monitored heating resistors.
  • the duration of energization is then preferably set individually for each monitored heating resistor.
  • a method for wear compensation of a label printer which prints labels by means of thermal printing, for example by means of direct thermal printing, thermal transfer printing or thermal sublimation printing.
  • Essential in the process, in particular using a as previously defined wear compensation device can be carried out is that the electrical resistance of one or more of the heating resistors of a thermal strip of a thermal head of the label printer is monitored and if a predetermined threshold value for the electrical resistance is exceeded, the duration of the current supply to the respective heating resistor during a printing process is increased.
  • the 1 Wear compensation device 1 shown in the two views is part of a label printer 2, which prints labels 3 by means of thermal printing, for example by means of direct thermal printing.
  • the labels 3 are here, for example, self-adhesive labels 3, which are detachably arranged on a carrier strip (not shown) and are printed individually after detachment.
  • a thermal head 4 is provided for printing, which has a thermal strip 5 with a plurality of heating resistors (dots) 6, via which a print image of a specific imprint quality is generated on the upper side of the respective label 3, which is guided past the thermal strip 5.
  • a counter-pressure element 7 On the side opposite the thermal bar 5, i.e. vertically below the label 3 that is being printed, there is a counter-pressure element 7 arranged, which is designed here and preferably as a pressure felt-coated bar.
  • the counter-pressure element 7 can also be a pressure roller.
  • a label feed device 8 is provided, here preferably in the form of a conveyor belt, which feeds the respective label 3 to the effective area 9 of the heating resistors 6 .
  • the labels 3 are fed to the effective area after they have been separated or detached from a carrier strip.
  • the effective area means the section below the thermal strip 5 in which the heating resistors 6 can introduce thermal energy into the thermosensitive medium of the label 3 at specific points and can thereby cause a color change, in particular a blackening, of the label 3 at this point.
  • the wear compensation device 1 also has a control device 10 which controls the thermal head 4 for printing the respective label 3 .
  • the control of the thermal head 4 includes energizing the respective heating resistors 6 for a predetermined energizing duration.
  • the control device 10 monitors the electrical resistance R of one or more of the heating resistors 6, in this case all the heating resistors 6 of the thermal strip 5, as proposed.
  • the monitoring includes the repeated determination of the electrical resistance R of the respective heating resistor 6. If a predetermined threshold value R 1 for the electrical resistance R is exceeded, the control device 10 then increases the energization duration of the respective heating resistor 6.
  • the respective heating resistor 6 is therefore compared to the initially provided Energized for longer and therefore activated for longer. In this way, the respective heating resistor 6 can act longer on the thermosensitive medium of the label 3 and cause a greater change in color or blackening. An aging-related decline in the degree of color change or degree of blackening can thus be compensated.
  • control device 10 is preferably configured in such a way that it does not change the voltage U and/or current intensity I during the printing process carried out with the increased energization duration.
  • the voltage U and/or current intensity I remains the same compared to at least the last previous printing process in which the threshold value R 1 was not yet exceeded, or in comparison to all previous printing processes in which the threshold value R 1 was not yet exceeded , unchanged, here according to 3 at a value U 1 or I 1 .
  • the voltage U and/or current intensity I of the respective heating resistor 6 can also be increased as an additional compensation measure in order to compensate for a decreasing degree of color change or degree of blackening.
  • the electrical resistance R of the respective heating resistor 6 is continuously, i. H. every time you turn it on.
  • the electrical resistance R is determined using a current measuring device 11 and/or a voltage measuring device 12.
  • the control device 10 also has a comparator 13 which compares the respectively determined electrical resistance or the corresponding resistance value R of the respective heating resistor 6 with the predetermined threshold value R 1 . So shows 2 For example, a profile of the electrical resistance or resistance value R of one of the heating resistors 6 of the thermal strip 5.
  • the heating resistor 6 has an electrical resistance R 0 at the beginning of its service life (time To).
  • the electrical resistance R then falls as a result of a large number of printing processes over the course of the service life of the heating resistor 6 and then rises again. how 2 shows, the electrical resistance R eventually exceeds its initial value R 0 and continues to rise.
  • the control device 10 changes the duration of the energization of this heating resistor 6.
  • the threshold value R 1 is above the initial value R 0 of the heating resistor 6, which has the advantage that the increase in the duration of energization is only made when the heating resistor 6 actually shows a certain degree of wear over time has reached. In this way, it can be ruled out that the duration of the energization is increased right from the start when the thermal strip 5 or the heating resistor 6 is still new, but where it also has an electrical resistance R with a value of R 0 as later in the critical state.
  • the threshold value R 1 it is also conceivable to set the threshold value R 1 to the initial value R 0 of the heating resistor 6, with the control device 10 changing the initial state of the heating resistor 6, in which the current supply duration is not yet to be increased, from the critical state from which the current supply duration is to be increased, based on a series of resistance values stored over time, it being possible to conclude that the electrical resistance R has increased by comparing at least two successive resistance values. If the value R 0 is then reached, the control device 10 recognizes that the critical state, which requires an increase in the energization duration, has now been reached.
  • the duration of the energization is set as a function of the electrical resistance R determined in each case of the respective heating resistor 6, with the duration of the energization increasing as the electrical resistance R increases.
  • Figure 3a is an example of the original energizing time of the heating resistor 6 with the resistance profile according to FIG 2 shown. This energization duration is for the period from T 0 to T 1 in 2 intended.
  • Figure 3b shows an increased energization duration as an example for comparison. The increased energization duration after reaching the point in time T 1 in 2 , ie when the threshold value R 1 is exceeded. If the electrical resistance R of the heating resistor 6 continues to rise, the duration of the energization in particular is correspondingly further increased.
  • the voltage U and the current intensity I remain constant at the value U 1 and I 1 , respectively.
  • the control device 10 also has a memory 14 in which the respective threshold value R 1 is stored.
  • a separate threshold value R 1 is stored here and preferably for each of the heating resistors 6 in the memory 14 .
  • the threshold value R 1 is in particular 1 to 20%, preferably 1 to 10%, particularly preferably 1 to 5% higher than the starting value R 0 for the electrical Resistance R of the heating resistor 6. In the present case, the threshold value R 1 is 15% higher than the initial value R 0 , as in 2 is shown as an example.
  • the control device 10 can also be configured in such a way that the respective threshold value R 1 or R 1 ′, starting from its initial value R 1 , is adjusted, in particular raised, continuously or at time intervals, in particular at regular time intervals 2 shown for time T 2 .
  • the adjusted threshold value R 1 ' then replaces the previous threshold value R 1 in the memory 14 .
  • no adjustment of the threshold value R 1 is provided, but this remains constant or unchanged at R 1 , as 2 shows.
  • the current supply duration is here and preferably always adapted based on the respectively determined electrical resistance R of the heating resistor 6, ie the current supply duration changes with each newly determined value for the electrical Resistance.
  • the present invention also relates to a method for compensating for wear in a label printer 2 that prints labels 3 by means of thermal printing, which method can preferably be carried out using the wear compensation device 1 described above.
  • wear compensation is carried out via the control device 10, which controls the thermal head 4 for printing the respective label 3, in that the electrical resistance R of one or more heating resistors 6 of the thermal strip 5 of the thermal head 4 is monitored and when a predetermined value is exceeded Threshold R 1 for the electrical resistance R, the energization duration of the respective heating resistor 6 is increased during a printing process.

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  • Electronic Switches (AREA)
  • Labeling Devices (AREA)

Claims (12)

  1. Dispositif de compensation d'usure d'une imprimante d'étiquettes (2) qui imprime des étiquettes (3) par impression thermique, comprenant
    - une tête thermique (4) qui présente une barrette thermique (5) munie d'une pluralité de résistances chauffantes (6),
    - un dispositif d'amenée d'étiquettes (8) qui amène l'étiquette respective (3) à la zone active (9) des résistances chauffantes (6), et
    - un dispositif de commande (10) qui pilote la tête thermique (4) pour imprimer l'étiquette respective (3),
    caractérisé en ce que le dispositif de commande (10) est configuré pour surveiller la résistance électrique (R) d'une ou de plusieurs des résistances chauffantes (6), et en cas de dépassement d'une valeur seuil prédéfinie (R1) pour la résistance électrique (R), pour augmenter la durée d'alimentation électrique de la résistance chauffante respective (6) lors d'une opération d'impression.
  2. Dispositif de compensation d'usure selon la revendication 1, caractérisé en ce que le dispositif de commande (10) est configuré pour surveiller la résistance électrique (R) de toutes les résistances chauffantes (6) de la barrette thermique (5) ou la résistance électrique (R) des résistances chauffantes (6) au moins d'un groupe prédéfini de résistances chauffantes (6) de la barrette thermique (5), et en cas de dépassement d'une valeur seuil prédéfinie (R1) pour la résistance électrique (R), pour augmenter la durée d'alimentation électrique de la résistance chauffante respective (6) lors d'une opération d'impression.
  3. Dispositif de compensation d'usure selon la revendication 1 ou 2, caractérisé en ce que le dispositif de commande (10) est configuré de telle sorte que la tension (U) et/ou l'intensité de courant (I) lors de l'opération d'impression avec la durée d'alimentation électrique augmentée reste inchangée en comparaison avec au moins la dernière opération d'impression précédente lors de laquelle la valeur seuil (R1) n'avait pas encore été dépassée.
  4. Dispositif de compensation d'usure selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de commande (10) est configuré pour établir la résistance électrique (R) de la résistance chauffante respective (6) en continu ou à des intervalles de temps, en particulier à des intervalles de temps réguliers.
  5. Dispositif de compensation d'usure selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de commande (10) présente un dispositif de mesure de courant et/ou de tension (11, 12) pour établir la résistance électrique (R) de la résistance chauffante respective (6).
  6. Dispositif de compensation d'usure selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de commande (10) présente un comparateur (13) qui compare la résistance électrique établie respective (R) de la résistance chauffante respective (6) avec la valeur seuil prédéfinie (R1).
  7. Dispositif de compensation d'usure selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de commande (10) est configuré de telle sorte qu'il règle la durée d'alimentation électrique en fonction de la résistance électrique (R) respectivement établie de la résistance chauffante respective (6), de préférence en ce que la durée d'alimentation électrique augmente de façon linéaire ou exponentielle pour une résistance électrique (R) croissante.
  8. Dispositif de compensation d'usure selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de commande (10) présente une mémoire (14) dans laquelle est mémorisée la valeur seuil (R1), de préférence en ce que dans la mémoire (14) une valeur seuil propre (RT) est mémorisée pour chaque résistance chauffante surveillée (6), ou une valeur seuil commune (R1) est mémorisée pour toutes les résistances chauffantes surveillées (6), ou respectivement une valeur seuil commune (R1) est mémorisée pour au moins un groupe de résistances chauffantes surveillées (6).
  9. Dispositif de compensation d'usure selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de commande (10) est configuré de telle sorte que la valeur seuil respective (R1, R1'), en partant de sa valeur initiale (R1), reste constante ou est adaptée en continu ou à des intervalles de temps, en particulier à des intervalles de temps réguliers, en particulier relevée, de préférence en ce que la valeur seuil adaptée (R1) remplace respectivement la valeur seuil précédente (R1) dans la mémoire (14).
  10. Dispositif de compensation d'usure selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de commande (10) est configuré de telle sorte qu'il fixe la valeur seuil (R1) pour la résistance chauffante respective (6) si une nouvelle barrette thermique (5) a été installée.
  11. Dispositif de compensation d'usure selon l'une quelconque des revendications précédentes, caractérisé en ce que la valeur seuil (R1), en particulier sa valeur initiale, est de 1 à 20 %, de préférence de 1 à 10 %, de manière particulièrement préférée de 1 à 5 % supérieure à la valeur initiale (Ro) pour la résistance électrique (R) de la résistance chauffante respective (6) .
  12. Procédé de compensation d'usure d'une imprimante d'étiquettes (2) qui imprime des étiquettes (3) par impression thermique, en particulier en utilisant un dispositif de compensation d'usure (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la résistance électrique (R) d'une ou de plusieurs des résistances chauffantes (6) d'une barrette thermique (5) d'une tête thermique (4) de l'imprimante d'étiquettes (2) est surveillée, et en cas de dépassement d'une valeur seuil prédéfinie (R1) pour la résistance électrique (R), la durée d'alimentation électrique de la résistance chauffante respective (6) est augmentée lors d'une opération d'impression.
EP19708068.2A 2018-03-16 2019-02-26 Dispositif de compensation d' usure d' une imprimante d' etiquettes Active EP3765299B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018106240.0A DE102018106240A1 (de) 2018-03-16 2018-03-16 Verschleißkompensationsvorrichtung eines Etikettendruckers
PCT/EP2019/054688 WO2019174904A1 (fr) 2018-03-16 2019-02-26 Dispositif de compensation d'usure d'une imprimante d'étiquettes

Publications (2)

Publication Number Publication Date
EP3765299A1 EP3765299A1 (fr) 2021-01-20
EP3765299B1 true EP3765299B1 (fr) 2022-12-28

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US (1) US11981148B2 (fr)
EP (1) EP3765299B1 (fr)
CN (1) CN111836724B (fr)
AU (1) AU2019235215B2 (fr)
CA (1) CA3093867C (fr)
DE (1) DE102018106240A1 (fr)
DK (1) DK3765299T3 (fr)
EA (1) EA039933B1 (fr)
ES (1) ES2940655T3 (fr)
PL (1) PL3765299T3 (fr)
WO (1) WO2019174904A1 (fr)

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CN103381711B (zh) * 2012-05-04 2016-01-20 山东华菱电子股份有限公司 热敏打印头修阻方法及装置
CN103722907B (zh) * 2012-10-15 2016-08-03 山东新北洋信息技术股份有限公司 打印机及其控制方法和装置
DE102015118732A1 (de) 2015-11-02 2017-05-04 Espera-Werke Gmbh Vorrichtung und Verfahren zum Bedrucken von Etiketten mittels Thermodruck

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DK3765299T3 (da) 2023-03-20
EP3765299A1 (fr) 2021-01-20
US11981148B2 (en) 2024-05-14
US20230202197A1 (en) 2023-06-29
CN111836724A (zh) 2020-10-27
ES2940655T3 (es) 2023-05-10
EA202092193A1 (ru) 2021-01-13
AU2019235215B2 (en) 2021-07-29
AU2019235215A1 (en) 2020-10-08
PL3765299T3 (pl) 2023-05-08
WO2019174904A1 (fr) 2019-09-19
CA3093867A1 (fr) 2019-09-19

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