(19)
(11) EP 2 862 722 B1

(12) EUROPEAN PATENT SPECIFICATION

(45) Mention of the grant of the patent:
27.03.2019 Bulletin 2019/13

(21) Application number: 14189070.7

(22) Date of filing: 15.10.2014
(51) International Patent Classification (IPC): 
B41J 11/00(2006.01)
B41J 15/04(2006.01)
B41J 29/377(2006.01)

(54)

Recording apparatus

Aufzeichnungsvorrichtung

Appareil d'enregistrement


(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 15.10.2013 JP 2013214844

(43) Date of publication of application:
22.04.2015 Bulletin 2015/17

(73) Proprietor: Seiko Epson Corporation
Shinjuku-ku Tokyo (JP)

(72) Inventor:
  • Yamaguchi, Koichi
    Suwa-shi, Nagano 392-8502 (JP)

(74) Representative: Miller Sturt Kenyon 
9 John Street
London WC1N 2ES
London WC1N 2ES (GB)


(56) References cited: : 
EP-A1- 0 671 354
EP-A1- 2 644 391
EP-A2- 0 819 545
GB-A- 2 354 976
US-A- 3 677 538
US-A1- 2004 100 544
US-A1- 2012 315 069
EP-A1- 1 513 011
EP-A2- 0 666 180
WO-A2-2011/077374
JP-A- 2006 224 583
US-A- 5 345 863
US-A1- 2005 195 264
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


    Description

    BACKGROUND


    1. Technical Field



    [0001] The present invention relates to a recording apparatus including a recording head for recording on a recording medium and a transportation element that transports the recording medium by peelably sticking the recording medium on an adhesive surface.

    2. Related Art



    [0002] As technology of this type in the related art, it is possible to include a printing machine described in JP-A-6-240589. A configuration in which an endless belt-shaped transportation element that is a configuration element of the printing machine is heated by a planar heating element from a lower side thereof is described in JP-A-6-240589.

    [0003] However, a configuration that actively cools the transportation element is not described or suggested in JP-A-6-240589. It is difficult to peel off the recording medium that is stuck on the adhesive surface of the transportation element at a high temperature and there is a problem that the recording medium is damaged, recording quality is lowered, and the adhesive surface is deteriorated if the recording medium is forcedly peeled off, but such a problem is not considered at all.

    [0004] EP 2 644 391 discloses a device for printing on a smooth surface of a flexible substrate. The device comprises a printing section having at least a first inkjet printing unit and a second inkjet printing unit. The device comprises a supporting conveyor means adapted for conveying the substrate substantially without mechanical tension from the first inkjet printing unit to the second printing unit, the inkjet printing unit being arranged so as to print with a single-pass onto the surface while the substrate is on the supporting conveyor means.

    [0005] US 5,345,863 discloses a continuous web printing apparatus comprising transport means including an endless belt having a sticky surface, a plurality of support rollers having said endless belt entrained therearound and a drive means for rotating said support rollers to move said endless belt. The apparatus has a press means for pressing a continuous web, such as a fabric or transfer sheet, against said endless belt to stick said continuous web to said endless belt, an ink jet head disposed between said support rollers in opposed relation to the surface of said continuous web stuck to said endless belt, and an abutment adapted to abut against said endless belt, said abutment being opposed to said ink jet head with the continuous web and said endless belt interposed therebetween. Also provided is a head gap adjusting means for moving at least either of said ink jet head or said abutment in a direction in which the two are opposed to each other, and recovering means for peeling said continuous web, which has passed by said ink jet head, from said endless belt for recovery.

    SUMMARY



    [0006] An advantage of some aspects of the invention is to easily peel off a recording medium that is transported while being stuck on an adhesive surface of a transportation element.

    [0007] According to an aspect of the invention, there is provided a recording apparatus as defined in claim 1.

    [0008] Regarding ease of peeling when peeling the recording medium stuck on the adhesive surface, the peeling is difficult at a high temperature and the peeling is easy at a low temperature.

    [0009] In this case, since the adhesive surface on a further downstream side of the recording head in the transportation direction of the recording medium is cooled by the cooling section, the recording medium can be easily peeled off from the adhesive surface after the recording is performed by the recording head and a problem is unlikely to occur such as damage to the recording medium when forcibly peeling the recording medium.

    [0010] Furthermore, since the cooling is not performed on an upstream side of the recording head, the recording medium can maintain a state of sticking on the adhesive surface until the recording is performed on the recording medium. That is, when the recording medium should be stuck firmly on the adhesive surface (during recording), the state thereof is ensured and it is possible to change the recording medium to be in a state of being easily peeled off when the recording medium is peeled off from the adhesive surface.

    [0011] Since the cooling section includes the blower, it is possible to effectively cool the adhesive surface with a simple structure when cooling the adhesive surface on a downstream side of the recording head.

    [0012] Since the wind is applied to the recording medium on an upstream side of the portion in which the recording medium is peeled off from the adhesive surface, in the transportation direction, a fixing property of ink is enhanced by facilitating evaporation of a solvent of the ink that is ejected and it is possible to change the adhesive surface on which the recording medium is stuck to be in a state where the recording medium is easily peeled off by efficiently cooling the adhesive surface.

    [0013] In the recording apparatus, the cooling section may be capable of adjusting a degree of cooling.

    [0014] In this case, since the cooling section is capable of adjusting the degree of cooling, it is possible to easily realize appropriate cooling.

    [0015] For example, the degree of cooling can be adjusted based on information of a type of the recording medium, a degree of an ejection amount of the ink, a recording area (printing area), a temperature of the transportation element, and the like.

    [0016] The recording apparatus may further include a heating section for heating a portion of the adhesive surface at which the recording apparatus is adapted to stick the recording medium onto the adhesive surface.

    [0017] In the recording apparatus, regarding the sticking of the recording medium on the adhesive surface, an adhesive strength tends to be high at a high temperature and to be low at a low temperature.

    [0018] In this case, since the heating section heats the portion in which the recording medium is stuck on the adhesive surface, it is possible to easily increase the adhesive strength and to stabilize a posture of the recording medium during recording.

    [0019] Furthermore, since the heating is not performed other than on the portion in which the recording medium is stuck, it does not worsen the ease of peeling in a portion in which the recording medium is peeled off. That is, when the recording medium should be stuck firmly on the adhesive surface (during recording), the state thereof is ensured and it is possible to change the recording medium to be in a state of being easily peeled off when the recording medium is peeled off from the adhesive surface.

    [0020] Preferably, the recording apparatus further includes a sticking roller provided at the portion of the adhesive surface at which the recording apparatus is adapted to stick the recording medium onto the adhesive surface, wherein the sticking roller also serves as the heating section.

    [0021] In this case, since the sticking roller provided in the portion in which the recording medium is stuck also serves as the heating section, it is possible to easily realize the heating by the heating section without increasing the number of parts.

    BRIEF DESCRIPTION OF THE DRAWINGS



    [0022] Embodiments of the invention will now be described by way of example only with reference to the accompanying drawings, wherein like numbers reference like elements.

    Fig. 1 is a schematic side view illustrating a part of a recording apparatus according to a first embodiment of the invention.

    Fig. 2 is a schematic side view illustrating a part of a recording apparatus according to a second embodiment of the invention.

    Fig. 3 is a schematic side view illustrating a part of a recording apparatus according to a third embodiment of the invention.

    Fig. 4 is a schematic side view illustrating a part of a recording apparatus according to a fourth embodiment of the invention.


    DESCRIPTION OF EXEMPLARY EMBODIMENTS


    First Embodiment (Fig. 1)



    [0023] Hereinafter, a recording apparatus according to a first embodiment of the invention will be described in detail with reference to Fig. 1. Here, a case where the recording apparatus is an inkjet recording apparatus is described, but the invention is not limited to the embodiment.

    [0024] The ink jet recording apparatus of the first embodiment includes a recording head 1 that ejects ink onto a recording medium P and performs recording, a transportation element 4 that transports the recording medium P that is peelably stuck on an adhesive surface 3 in a transportation direction A, and a cooling section 6 that cools the adhesive surface 3 on a downstream side of the recording head 1, in the transportation direction A of the recording medium P.

    [0025] In the first embodiment, the cooling section 6 is a blower 7. Then, the blower 7 is configured to apply wind to the recording medium P on the upstream side of a portion 5 in which the recording medium P is peeled off from the adhesive surface 3, in the transportation direction A.

    [0026] Furthermore, in the first embodiment, a heating section 9 for heating a portion 8 in which the recording medium P is stuck on the adhesive surface 3 is provided. Here, the heating section 9 is provided in the sticking portion 8 and has a structure that also serves as a sticking roller 10 for pressing and sticking the recording medium P on the adhesive surface. Moreover, the heating section 9 is not limited to the above structure and, for example, may use an infrared heater and the like. Moreover, the heating section 9 need not be provided.

    [0027] In Fig. 1, a reference numeral 11 represents a driving roller, a reference numeral 12 represents a driven roller, and a rotation movement of the transportation element 4 is performed by the driving roller 11 and the driven roller 12.

    [0028] Next, an operation of the first embodiment will be described.

    [0029] Regarding ease of peeling when peeling the recording medium P stuck on the adhesive surface 3, the peeling is difficult at a high temperature and the peeling is easy at a low temperature.

    [0030] In the first embodiment, since the adhesive surface 3 on the downstream side of the recording head 1 in the transportation direction A is cooled by the cooling section 6, the recording medium P can be easily peeled off from the adhesive surface 3 and a problem is unlikely to occur such as damage to the recording medium P when forcibly peeling the recording medium P.

    [0031] Furthermore, since the upstream side of the recording head 1 is not cooled, it is possible to maintain a firmly sticking state. That is, when the recording medium P should be stuck firmly on the adhesive surface 3 (during recording), the state thereof is ensured and it is possible to change the recording medium P to be in a state of being easily peeled off when the recording medium P is peeled off from the adhesive surface 3.

    [0032] Furthermore, since the blower is used as the cooling section, it is possible to effectively cool the adhesive surface 3 with a simple structure when cooling the adhesive surface 3 on the downstream side of the recording head 1, in the transportation direction A.

    [0033] Furthermore, since the cooling is performed by applying the wind to the recording medium P on the upstream side of the peeling portion 5, in the transportation direction A, it is possible to further effectively cool the adhesive surface 3 on which the recording medium P is stuck by heat of vaporization while enhancing fixing property of ink by evaporation of a solvent of the ink that is ejected. Therefore, it is possible to change the recording medium P to be in a state of being easily peeled off from the adhesive surface 3.

    [0034] Furthermore, in the first embodiment, since the portion 8 in which the recording medium P is stuck on the adhesive surface 3 is heated by the heating section 9, it is possible to easily increase an adhesive strength and to stabilize a posture of the recording medium P during recording.

    [0035] Furthermore, since the heating is not performed other than on the sticking portion 8, it does not worsen the ease of peeling in the peeling portion 5. That is, when the recording medium P should be stuck firmly on the adhesive surface 3 (during recording), the state thereof is ensured and it is possible to change the recording medium P to be in a state of being easily peeled off when the recording medium P is peeled off from the adhesive surface 3.

    [0036] Furthermore, since the sticking roller 10 provided in the sticking portion 8 also serves as the heating section 9, it is possible to easily realize the heating by the heating section 9 without increasing the number of parts.

    Second Embodiment (Fig. 2)



    [0037] Hereinafter, a recording apparatus according to a second embodiment of the invention will be described in detail with reference to Fig. 2.

    [0038] The ink jet recording apparatus of the second embodiment is configured such that the blower 7 as the cooling section 6 applies the wind to the adhesive surface 3 on the further downstream side than the portion 5 in which the recording medium P is peeled off from the adhesive surface 3, in the transportation direction A. In other words, the wind is applied to the adhesive surface 3 after the recording medium P is peeled off. Furthermore, the blower 7 that is the cooling section 6 may be further provided in the same position as the first embodiment. Since the configuration other than that is the same as that of the first embodiment, the same reference numerals are given to the same portions and the description thereof will be omitted. Moreover, the heating section 9 need not be provided.

    [0039] In the second embodiment, cooling is performed by applying the wind to the adhesive surface 3 after the recording medium P is peeled off in the peeling portion 5. Even in a case of cooling this portion, since the adhesive surface 3 before the recording medium P is peeled off on the upstream side thereof can be cooled by heat conduction of the transportation element 4 including the adhesive surface 3 by cooling the adhesive surface 3 of the transportation element 4, it is possible to change the peeling portion 5 to be in a state of easily peeling off. In this case, it is preferable that the transportation element 4 be configured of a material having high thermal conductivity such as a metal belt.

    Third Embodiment (Fig. 3)



    [0040] Hereinafter, a recording apparatus according to a third embodiment of the invention will be described in detail with reference to Fig. 3.

    [0041] The ink jet recording apparatus of the third embodiment is configured such that the blower 7 as the cooling section 6 applies the wind to the driving roller 11 among the rollers 11 and 12 creating the rotation movement of the transportation element 4 on the downstream side in the transportation direction. Moreover, the blower 7 that is the cooling section 6 may be further provided in the same position as that of the first embodiment or the second embodiment. Since the configuration other than that is the same as that of the first embodiment, the same reference numerals are given to the same portions and the description thereof will be omitted. Moreover, the heating section 9 need not be provided.

    [0042] In the third embodiment, since the cooling is performed to the driving roller 11 among the rollers 11 and 12 creating the rotation movement of transportation element 4 on the downstream side in the transportation direction by applying the wind, it is possible to change the recording medium P to be in a state of being easily peeled off from adhesive surface 3.

    Fourth Embodiment (Fig. 4)



    [0043] Hereinafter, a recording apparatus according to a fourth embodiment of the invention will be described in detail with reference to Fig. 4.

    [0044] The ink jet recording apparatus of the fourth embodiment is configured such that the driving roller 11 among the rollers 11 and 12 creating the rotation movement of the transportation element 4 on the downstream side in the transportation direction also serves as a cooling roller 13. In Fig. 4, a reference numeral 14 represents a control section that controls a cooling state of the cooling roller 13 and the control section 14 controls a cooling mechanism (not illustrated) built into the cooling roller 13. Moreover, the blower 7 that is the cooling section 6 may be further provided in the same position as the first embodiment or the second embodiment. Since the configuration other than that is the same as that of the first embodiment, the same reference numerals are given to the same portions and the description thereof will be omitted. Moreover, the heating section 9 need not be provided.

    [0045] For example, the cooling mechanism built into the cooling roller 13 may be a configuration using a mechanism that circulates coolant inside the cooling roller 13 or an electro-thermal conversion element such as a Peltier element, and the cooling mechanism may be configured on the surface of the cooling roller 13 such that heat exchange is performed with the roller surface that is a portion not coming into contact with transportation element 4 or with the roller by coming into contact with both end sides of the roller.

    [0046] In the fourth embodiment, since the driving roller 11 among the rollers 11 and 12 creating the rotation movement of the transportation element 4 on the downstream side in the transportation direction also serves as a cooling roller 13, the adhesive surface 3 of the portion in which the transportation element 4 comes into contact with the driving roller 11 is cooled and it is possible to change the recording medium P to be in a state of being easily peeled off from the adhesive surface 3.

    Fifth Embodiment



    [0047] Hereinafter, a fifth embodiment of the invention will be described.

    [0048] In an ink jet recording apparatus of the fifth embodiment, the cooling section 6, 13 of any of the previous embodiments is capable of adjusting a degree of cooling. For example, the degree of cooling may be adjusted based on information of a type of the recording medium, a degree of an ejection amount of the ink, a recording area (printing area), a temperature of the transportation element, and the like. The temperature of the transportation element 4 is measured by a temperature sensor. The adjustment may be performed by an automatic controlling structure based on the information or by a structure which is manually adjusted by a user.

    [0049] In the fifth embodiment, since the cooling section 6 is capable of adjusting the degree of cooling, it is possible to easily realize appropriate cooling.

    [0050] The foregoing description has been given by way of example only and it will be appreciated by a person skilled in the art that modifications can be made without departing from the scope of the present invention as claimed.


    Claims

    1. A recording apparatus comprising:

    a recording head (1) for recording on a recording medium (P);

    an endless belt (4) for transporting the recording medium (P), the endless belt (4) having an adhesive surface (3) adapted to peelably stick the recording medium (P) to the endless belt (4); and

    a cooling section (6, 13) for cooling the adhesive surface on a downstream side of the recording head, in a transportation direction (A) of the recording medium,

    characterized in that the cooling section comprises a blower (7) arranged to apply wind to the recording medium on an upstream side in the transportation direction (A) of a portion (5) of the adhesive surface at which the recording apparatus is adapted to peel the recording medium off the adhesive surface.


     
    2. The recording apparatus according to claim 1,
    wherein the cooling section (6, 13) is capable of adjusting a degree of cooling.
     
    3. The recording apparatus according to claim 1 or claim 2, further comprising:
    a heating section (9) for heating a portion (8) of the adhesive surface (3) at which the recording apparatus is adapted to stick the recording medium (P) onto the adhesive surface.
     
    4. The recording apparatus according to Claim 3, further comprising:
    a sticking roller (10) provided at the portion (8) of the adhesive surface (3) at which the recording apparatus is adapted to stick the recording medium (P) onto the adhesive surface, wherein the sticking roller (10) also serves as the heating section (9).
     


    Ansprüche

    1. Aufzeichnungsvorrichtung, umfassend:

    einen Aufzeichnungskopf (1) zum Aufzeichnen auf einem Aufzeichnungsmedium (P);

    ein Endlosband (4) zum Transportieren des Aufzeichnungsmediums (P), wobei das Endlosband (4) eine Klebefläche (3) aufweist, die ausgebildet ist, das Aufzeichnungsmedium (P) ablösbar an das Endlosband (4) zu kleben; und

    einen Kühlungsabschnitt (6, 13) zum Kühlen der Klebefläche auf einer stromabwärts liegenden Seite des Aufzeichnungskopfs in einer Transportrichtung (A) des Aufzeichnungsmediums,

    dadurch gekennzeichnet, dass der Kühlungsabschnitt ein Gebläse (7) umfasst, das angeordnet ist, Wind auf das Aufzeichnungsmedium auf einer stromaufwärts liegenden Seite in einer Transportrichtung (A) eines Abschnitts (5) der Klebefläche zu richten, an dem die Aufzeichnungsvorrichtung ausgebildet ist, das Aufzeichnungsmedium von der Klebefläche abzulösen.


     
    2. Aufzeichnungsvorrichtung nach Anspruch 1,
    wobei der Kühlungsabschnitt (6, 13) imstande ist, einen Kühlungsgrad einzustellen.
     
    3. Aufzeichnungsvorrichtung nach Anspruch 1 oder Anspruch 2, ferner umfassend:
    einen Heizabschnitt (9) zum Erhitzen eines Abschnitts (8) der Klebefläche (3), an dem die Aufzeichnungsvorrichtung ausgebildet ist, das Aufzeichnungsmedium (P) an die Klebefläche zu kleben.
     
    4. Aufzeichnungsvorrichtung nach Anspruch 3, ferner umfassend:
    eine Klebewalze (10), die am Abschnitt (8) der Klebefläche (3) bereitgestellt ist, an dem die Aufzeichnungsvorrichtung ausgebildet ist, das Aufzeichnungsmedium (P) an die Klebefläche zu kleben, wobei die Klebewalze (10) auch als der Heizabschnitt (9) dient.
     


    Revendications

    1. Appareil d'enregistrement comprenant :

    une tête d'enregistrement (1) pour l'enregistrement sur un support d'enregistrement (P) ;

    une courroie sans fin (4) pour transporter le support d'enregistrement (P), la courroie sans fin (4) ayant une surface adhésive (3) adaptée pour coller de manière décollable le support d'enregistrement (P) sur la courroie sans fin (4) ; et

    une section de refroidissement (6, 13) pour refroidir la surface adhésive d'un côté en aval de la tête d'enregistrement dans une direction de transport (A) du support d'enregistrement,

    caractérisé en ce que la section de refroidissement comprend une soufflante (7) étudiée pour appliquer un vent au support d'enregistrement d'un côté en amont dans la direction de transport (A) d'une partie (5) de la surface adhésive où l'appareil d'enregistrement est adapté pour décoller le support d'enregistrement de la surface adhésive.


     
    2. Appareil d'enregistrement selon la revendication 1,
    dans lequel la section de refroidissement (6, 13) est capable de régler un degré de refroidissement.
     
    3. Appareil d'enregistrement selon la revendication 1 ou la revendication 2, comprenant en outre :
    une section de chauffage (9) pour chauffer une partie (8) de la surface adhésive (3) où l'appareil d'enregistrement est adapté pour coller le support d'enregistrement (P) sur la surface adhésive.
     
    4. Appareil d'enregistrement selon la revendication 3, comprenant en outre :
    un rouleau de collage (10) fourni au niveau de la partie (8) de la surface adhésive où l'appareil d'enregistrement est adapté pour coller le support d'enregistrement (P) sur la surface adhésive, dans lequel le rouleau de collage (10) sert également de section de chauffage (9).
     




    Drawing

















    Cited references

    REFERENCES CITED IN THE DESCRIPTION



    This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

    Patent documents cited in the description