JP2004262017A - Label printer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a label printer which enables stable transfer printing without causing transfer failures by the adhesion of a pressure sensitive adhesive on a label rear face without a release sheet to other part, and without causing cutter failures due to paste accumulation at a cutting part. <P>SOLUTION: For example, the label printer 100 uses a strip-shaped re-wetting adhesive label 1 with a remoistening adhesive applied. The re-wetting adhesive becomes tacky when moisture is applied to a rear face. The remoistening adhesive label 1 is transferred by a platen roller 11, and printing is carried out to a front face by a printing head 12. A label piece 6 is formed by cutting the strip-shaped remoistening adhesive label 1 by a cutter 13. Moisture is applied to a remoistening adhesive applied face of the printed and cut label piece 6, and the label piece 6 is held and transferred by an application roller 14 and a transfer roller 15. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a label printer that prints on a label without a mount.
[0002]
[Prior art]
Generally, a label without a backing sheet is known, in which a heat-sensitive coloring layer and a release layer made of silicon or the like are formed on one side of a strip-shaped paper material without using a backing sheet, and an adhesive layer is formed on the other side. ing. Since a label without a mount does not require a mount, it is used as a label suitable for resource saving, and a label printer for printing on the label without a mount has been proposed. (For example, see Patent Document 1).
[0003]
A conventional label printer 300 for printing on a label without a backing sheet will be described with reference to FIG.
FIG. 7 is a side view showing a schematic structure of a conventional label printer 300. The label printer 300 mainly controls a supply unit 2, a printing unit 3, a cutting unit 4, a drawing unit 45, and each unit. And a control unit 10 that performs the control.
[0004]
The supply unit 2 rotatably holds the label 44 without a backing sheet wound in a roll shape with the adhesive layer side inside.
The printing unit 3 includes a print head 11 and a platen roller 12, and the print head 11 is provided so as to be able to freely contact and separate from the platen roller 12. The platen roller 12 is rotatably driven by a stepping motor (not shown), and holds the label 44 without a mount, which is fed from the supply unit 2 and drawn out to the printing unit 3 via the guide roller 8, between the printing head 11 and the platen roller 12. The printing section 3 is conveyed to the cutting section 4 side, and a portion from the supply section 2 to the printing section 3 is formed as a conveyance path.
The print head 11 performs predetermined printing by causing the heat-sensitive coloring layer of the label 44 without the backing paper to be conveyed by heat.
A first sensor 9 is provided between the supply unit 2 and the printing unit 3 in the transport path of the mountless label 44, and the first sensor 9 is an optical reflective sensor, Marks (not shown) provided at predetermined intervals on the back surface of the label 44 are detected based on differences in reflectance, and a detection signal is output to the control unit 10.
The cutting unit 4 includes a cutter 13 including a movable blade and a fixed blade. The cutting unit 4 cuts the conveyed band-shaped label 44 without a mount at a predetermined position in a width direction to form a label piece 46.
The drawer 45 has a driving roller 47 and a driven roller 48, and the driving roller 47 is rotationally driven by a stepping motor (not shown). The driven roller 48 is provided rotatably facing the driving roller 47, and prints. The cut label piece 46 is nipped and pulled out by the driving roller 47 and the driven roller 48, and is conveyed to the issuing port 20.
The issuing port 20 is provided with a second sensor 19 for detecting the presence or absence of the label piece 46. The second sensor 19 is an optical transmission sensor, and determines whether or not the label piece 46 is present by a difference in transmittance. It detects and outputs a detection signal to the control unit 10.
The control unit 10 controls the above-described units according to a program.
Each member in the transport path of the printing section 3, the cutting section 4, the drawing section 45, and the label 44 without a backing is coated with a release agent such as silicon so that the label 44 without the backing is not stuck.
[0005]
[Patent Document 1]
JP-A-8-244260
[Problems to be solved by the invention]
However, in the case of the above-described conventional label printer 300, even if each part is coated with a release agent, a small amount of the adhesive of the mountless label 44 adheres to each part. There is a problem in that a transport failure such as the 44 being wound around the platen roller 12 or a cutter failure due to the accumulation of glue in the cutting section 4 leads to a failure of the cutter 13.
Further, the label piece 46 is left in the issuing port 20 so as to protrude from the issuing port 20 to the outside of the label printer 300 until the label piece 46 is removed by the operator. There is a problem that dust adheres to the surface and the adhesive strength is weakened, or the protruding label piece 46 is stuck to a human body or the like while being left outside the label printer 300 for a long time, and is lost.
Furthermore, since the adhesive on the back surface of the issued label piece 46 is exposed and the adhesive portions of the label piece 46 are stuck to each other, in order to stock the label piece 46, the label piece 46 needs to be Work such as accurately overlapping the release agent-coated surface of the other label piece 46 or attaching the label piece 46 to a sheet or the like to which the release agent has been applied is required, thereby significantly reducing the work efficiency of the operator. There is a problem to do.
[0007]
SUMMARY OF THE INVENTION The present invention has been made in view of the above-described conventional problems, and has as its object to provide a label printer that can print and issue satisfactorily without a label without a backing sheet sticking to each part of the transport path. And
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the label printer according to claim 1, wherein the platen roller transports a band-shaped label coated with a rewet adhesive which becomes tacky by applying moisture to the back surface, and the surface of the band-shaped label. A printing unit having a print head for performing printing on the printing unit, a cutting unit that cuts the band-shaped label printed by the printing unit to form a label piece, and a re-wet adhesive for the label piece with a transport roller and the label piece. It is composed of a drawer that is nipped and transported by an application roller that applies moisture to the application surface, a sensor that detects the presence or absence of the label piece transported by the drawer, and a controller that controls each unit. It is characterized by that.
According to the label printer of the present invention, the drawer section rotatably supports the application roller and the delivery roller, and a lower portion is rotatably supported by a fixing member so as to be rotatable around the fixing member. It has a rotating plate.
The rotation plate is characterized in that the application roller and the delivery roller can be replaced at a position facing the transport roller.
According to a third aspect of the present invention, the drawer includes a water storage member that contains water and slidably contacts the application roller to apply the water.
According to the label printer of the fourth aspect, the delivery roller has a smaller diameter than the application roller.
According to the label printer described in claim 5, the control unit is configured to measure a time from when the label piece is detected by the sensor to when the label piece is not detected, and the measurement unit Time-out means that when the measured time exceeds a predetermined time, a time-out means for back-conveying and holding the label piece, and forward-conveying and re-wetting adhesive for the label piece conveyed and held reversely after the time-out Re-issue means for applying moisture to the application surface.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.
[0010]
A label printer 100 according to a first embodiment of the present invention will be described with reference to FIGS. However, the same parts as those in the related art are denoted by the same reference numerals, and redundant description will be omitted.
FIG. 1 is a side view showing a schematic structure of the label printer 100. The label printer 100 mainly includes a supply unit 2, a printing unit 3, a cutting unit 4, a drawing unit 5, and a control unit that controls each unit. And 10.
[0011]
The rewetting adhesive label 1 used in the label printer 100 has a printing surface having a thermosensitive coloring layer formed on one surface of a band-shaped paper material, and is provided with moisture on the other surface so as to become tacky. An adhesive layer is formed. As the adhesive used for the rewetting adhesive layer, a well-known rewetting adhesive such as polyvinyl alcohol or glue, that is, an adhesive which is always in a dry state and becomes tacky by absorbing moisture is used.
[0012]
The supply unit 2 is configured to rotatably hold the rewet adhesive label 1 wound in a roll shape with the rewet adhesive layer side inside on a supply shaft 7.
[0013]
The printing unit 3 has a print head 11 and a platen roller 12. The print head 11 is provided so as to be able to freely contact and separate from the platen roller 12. The platen roller 12 is driven to rotate by a stepping motor 22, which will be described later, feeds out the rewetting adhesive label 1 from the supply unit 2, and nips and cuts between the print head 11 via the guide roller 8 formed in the transport path. The print head 11 conveys the heat-sensitive coloring layer of the re-wet adhesive label 1 to be conveyed to the unit 4 side, and performs predetermined printing by causing the heat-sensitive coloring layer to develop color by heat.
[0014]
A first sensor 9 is provided between the supply unit 2 and the printing unit 3 in the conveyance path of the rewetting adhesive label 1, and the first sensor 9 is an optical reflective sensor, A mark (not shown) provided at a predetermined interval on the back surface of the rewet adhesive label 1 is detected from a difference in reflectance, and a detection signal is output to the control unit 10.
[0015]
The cutting section 4 includes a cutter 13 including a movable blade and a fixed blade. The cutting section 4 cuts the conveyed band-shaped rewet adhesive label 1 at a predetermined position in the width direction to form a label piece 6.
[0016]
The drawer unit 5 includes an application roller 14 as a driving roller, a transport roller 15 as a driven roller, and a water storage tank 16. The application roller 14 is disposed on the intermediate frame 21 in a cantilever manner. The rewetting adhesive layer formed on the back surface of the label piece 6 is impregnated with water in the tank 16 and slidably comes into contact with a sponge-shaped absorber 17 protruding from the water storage tank 16 and is rotationally driven by a stepping motor 22 described later. The transport roller 15 is rotatably disposed facing the application roller 14, and the printed and cut label piece 6 is nipped by the application roller 14 and the transport roller 15. The paper is then withdrawn and transported to the issuing port 20.
[0017]
Although not shown, the outer peripheral surface of the application roller 14 is formed in an uneven shape.
Auxiliary rollers 18, which are guide means for the cut label pieces 6, are provided rotatably before and after the drawer 5 in the transport direction.
[0018]
The issuing port 20 is provided with a second sensor 19 for detecting the presence or absence of the label piece 6. The second sensor 19 is an optical transmission sensor, and determines whether or not the label piece 6 is present based on a difference in transmittance. It detects and outputs a detection signal to the control unit 10.
The control unit 10 controls the above-described units according to a program.
[0019]
FIG. 2 is a block diagram illustrating a configuration of the control unit 10 of the label printer 100.
2, the control unit 10 mainly includes a CPU 23, a ROM 25, a RAM 26, a motor control unit 27, a first sensor control unit 28, a second sensor control unit 29, a cutter control unit 30, The control unit includes a control unit 31, a timer 32, an external interface 33, and an interface 34, and the units are connected and configured via a bus 24.
[0020]
The CPU 23 operates according to a control program stored in the ROM 25 and controls each unit.
Various data is temporarily stored in the RAM 26.
The motor control unit 27 drives the stepping motor 22 to rotate the platen roller 12 and the application roller 14 in conjunction with each other, so that the rewet adhesive label 1 and the label piece 6 are transported.
[0021]
The first sensor control unit 28 receives a detection signal from the first sensor 9 and controls other various driving units via the CPU 23 based on the detection signal.
The second sensor control unit 29 receives a detection signal from the second sensor 19 and controls other various driving units via the CPU 23 based on the detection signal.
[0022]
The cutter control unit 30 operates the cutter 13 to cut the strip-shaped rewetting adhesive label 1 conveyed in the width direction at a predetermined position to form the label piece 6.
The print control unit 31 generates a control signal corresponding to print data to be printed on the rewet adhesive label 1 and supplies the control signal to the print head 11 to perform a printing operation.
[0023]
The timer 32 measures the time from when the label piece 6 is detected at the issuing port 20 to when it is not detected (that is, when the label piece 6 is removed from the issuing port 20) by the detection signal of the second sensor 19. It has a function as a measuring unit and a timeout unit described later.
[0024]
The external interface 33 can transmit and receive various data to and from an externally connected device (not shown).
Further, an input unit 35 for inputting various data and a display unit 36 for displaying data and various information input from the input unit 35 are connected via an interface 34.
[0025]
FIG. 3 is a flowchart showing the printing control of the label printer 100 having the above configuration.
After confirming the operation of each part in step S1, the label printer 100 clears the constants (n, t) described later, and re-detects by the first sensor 9 provided in the transport path of the rewetting adhesive label 1. Initialization processing such as position detection of the wet-adhesive label 1 is performed, and in step S2, the operator inputs print data and the number n of labels 6 to be printed from an external device (not shown) or the input unit 35. At S3, an issue instruction is issued.
[0026]
In step S4, the platen roller 12 is rotationally driven to feed the rewetting adhesive label 1 from the supply unit 2 to the printing unit 3 via the guide roller 8, and the printing unit 3 energizes the print head 11 to re-apply the label. A predetermined printing is performed on the wet adhesive label 1.
In step S5, the rewetting adhesive label 1 is cut in the cutting section 4 at a predetermined position in the width direction to form a label piece 6.
[0027]
In step S6, the cut label piece 6 is nipped and pulled out by the application roller 14 and the transport roller 15, and is also immersed in a water storage tank 16 to impregnate with moisture and protrude from the water storage tank 16. Water is applied to the rewetting adhesive layer formed on the back surface of the label piece 6 by the application roller 14 that slides on the label piece 6. By this processing, the label piece 6 is made to be tacky.
[0028]
In step S7, the second sensor 19 provided in the issuing port 20 detects the label piece 6 to be conveyed, and outputs a detection signal to the control unit 10.
In step S8, when the control unit 10 detects the label piece 6 based on the detection signal input from the second sensor 19, the control unit 10 sets a timer 32 for measuring an elapsed time t described later (t = 0).
[0029]
In step S9, the timer 32 counts the elapsed time t (hereinafter, referred to as time t) from when the label piece 6 is detected at the issuing port 20 to when it is not detected.
[0030]
In step S10, the time t is compared with the timeout time t1. If the time t has not reached the timeout time t1, the process proceeds to step S11, and if the time t has reached the timeout time t1, the process proceeds to step S14.
Note that the time-out time t1 is a time that does not allow the moisture applied to the back surface of the label piece 6 to dry, and can be set arbitrarily, and is set in advance.
[0031]
First, a case where the time t has not reached the timeout time t1 in step S10 will be described.
In step S11, the presence or absence of the label piece 6 in the issuing port 20 is detected by the second sensor 19, and if it is determined that the label piece 6 still exists in the issuing port 20, the process returns to step S9 to count the time t. To continue.
In step S11, when it is determined from the detection signal of the second sensor 19 that there is no label piece 6 in the issuing port 20, the process proceeds to step S12, and the number of issued sheets n is counted down (n = n-1).
[0032]
In step S13, it is determined whether a predetermined number n of label pieces 6 have been issued (n = 0). If the issuance of the n number of label pieces 6 has not been completed, the process proceeds to step S4, where the subsequent rewet adhesive label 1 is transported forward, and the printing of the label pieces 6 is continued. When the printing and issuance of the n number of label pieces 6 has been completed, the issuance process ends.
[0033]
Next, the case where the time t reaches the timeout time t1 in step S10 will be described.
If the time t has reached the time-out time t1, the process proceeds to step S14, in which the time-out is performed, and the operator is notified by a well-known method such as a means by an alarm such as a buzzer or a display on the display unit 36 indicating the time-out. I do.
[0034]
In step S15, the application roller 14 of the drawer 5 is rotated in the reverse direction by the stepping motor 22, and the label piece 6 protruding from the issuing port 20 is fed back.
The label piece 6 is transported until the downstream end face in the forward transport direction reaches the nipping position of the application roller 14 and the transport roller 15, and the back feed of the label piece 6 is stopped in step S16.
[0035]
In step S17, it is determined whether or not a reissuing instruction has been issued by the input means such as the input unit 35 to re-convey the label piece 6 stopped in the drawer unit 5 again. If a reissue instruction has been issued, the process proceeds to step S6, in which the application roller 14 is rotated in the normal direction, the label piece 6 is conveyed forward, water is applied to the rewetting adhesive layer on the back surface of the label piece 6, and the issuance processing is performed. To continue.
[0036]
The application roller 14 is driven to rotate, and the transport roller 15 is driven by the application roller 14. However, the present invention is not limited to this. The transport roller 15 is driven to rotate and the application roller 14 is moved to the transport roller 15. It may be configured to be driven.
[0037]
Thus, according to the first embodiment of the present invention, the re-wet adhesive label 1 used in the label printer 100 uses a re-wet adhesive that becomes tacky when water is applied to the adhesive. As a result, the adhesive of the re-wet adhesive label 1 does not adhere to each part to cause transport failure since the adhesive does not take on the adhesive until the water is applied in the drawer part 5. This enables stable conveyance printing without causing cutter failure.
[0038]
A measuring means for measuring a time from when the label piece 6 is detected by the second sensor 19 disposed in the issuing port 20 to when the label piece 6 is not detected, and a time measured by the measuring means. Is a time-out when a predetermined time has elapsed, a time-out means for back-conveying the label piece 6 protruding from the issuing port 20 and holding it in the label printer 100, and a label conveyed in reverse after the time-out and held in the label printer 100 Since the re-issuing means is provided to forward the strip 6 again and apply moisture to the re-wet adhesive coated surface, the re-wet adhesive of the label strip 6 is dried without losing the label strip 6 and the adhesive is applied. By reapplying moisture even when the force is weakened, it is possible to provide a label piece 6 which always has a stable adhesive strength.
[0039]
Next, a second embodiment of the present invention shown in FIGS. 4 to 6 will be described.
FIG. 4 is a side view showing a schematic structure of a label printer 200 according to the second embodiment of the present invention, FIG. 5 is a perspective view showing a drawer 37 of the label printer 200, and FIG. FIG. 4 is an explanatory diagram showing an operation of a drawer unit 200 of the embodiment.
In the description of the second embodiment of the present invention, the same components as those in the first embodiment of the present invention are denoted by the same reference numerals, and redundant description will be omitted.
[0040]
In the second embodiment of the present invention, as a configuration mainly different from the first embodiment of the present invention, the drawer 37 of the label printer 200 includes a transport roller 38 as a drive roller that is driven to rotate by the stepping motor 22; Below the coating roller 39, there are provided a coating roller 39 and a delivery roller 40, and a plate-shaped rotating plate 41 that rotatably supports the coating roller 39 and the delivery roller 40 in a cantilever manner. Reference numeral 41 denotes a lower fixing member 42 which is rotatably attached to the intermediate frame 21 along the transport direction of the label piece 6 with the fixing member 42 as a base point. The roller 39 and the delivery roller 40 are configured to be replaceable at a position facing the transport roller 38.
[0041]
Then, the printed and cut label piece 6 is nipped and pulled out by the transport roller 38 and the application roller 39 or the transport roller 38 and the delivery roller 40, and is transported to the issuing port 20.
[0042]
As shown in FIG. 5, the plate-shaped rotating plate 41 is provided with an arc-shaped perforation 43 near the center thereof, and through this perforation 43, the water storage tank 16 is connected to the intermediate frame 21. Fixed to.
The delivery roller 40 has a smaller diameter than the application roller 39 and does not contact the sponge-like absorber 17 that is impregnated with water in the water storage tank 16 fixed to the intermediate frame 21 and protrudes from the water storage tank 16. Shall be.
[0043]
Next, the operation of the drawer 37 of the label printer 200 will be described with reference to FIGS. 6 (a) and 6 (b).
FIG. 6A illustrates a state in which the rotating plate 41 is rotated to the downstream side in the forward direction of the label piece 6 so that the application roller 39 faces the conveying roller 38. FIG. Is rotated to the upstream side in the forward direction of the label piece 6, and the delivery roller 40 faces the transport roller 38.
[0044]
First, a state in which the application roller 39 faces the transport roller 38 will be described with reference to FIG.
In FIG. 6A, the rotating plate 41 is rotated downstream (counterclockwise in FIG. 6) in the forward direction of the label piece 6, and the application roller 39 faces the transport roller 38.
Then, with the rotation of the transport roller 38, the application roller 39 rotates following the rotation, impregnating the water in the water storage tank 16 fixed to the intermediate frame 21, and projecting from the water storage tank 16. The label piece 6 is slid in contact with the label piece 6 to impart moisture to the rewetting adhesive layer formed on the back surface of the label piece 6, and the sticky label piece 6 is conveyed to the issuing port 20. .
[0045]
Next, a state in which the delivery roller 40 faces the transport roller 38 will be described with reference to FIG.
In FIG. 6B, the rotation plate 41 is rotated to the upstream side in the forward direction of the label piece 6 in the forward direction, and the delivery roller 40 faces the transport roller 38.
Then, with the rotation of the transport roller 38, the delivery roller 40 having a smaller diameter than the application roller 39 described above rotates without being in contact with the sponge-like absorber 17, and the label piece 6 is rotated by the issuing port. 20.
[0046]
Therefore, the label piece 6 in FIG. 6B is not tackified and is conveyed to the issuing port 21 because no moisture is given to the rewetting adhesive layer at the drawer 37.
By setting the label pieces 6 so as to be continuously discharged to the outside without stopping at the issuing port 20, it is possible to continuously issue n number of label pieces 6 on which a predetermined number of printed sheets are printed. I do.
[0047]
The rotation plate 41 is provided with a lock mechanism (not shown), and fixes the rotation plate 41 at a predetermined position.
In addition, the application roller 39 is sent out to the upstream side of the roller 40 in the forward direction of the label piece 6. However, the present invention is not limited to this. The application roller 39 is sent out to the downstream side of the roller 40. It is good also as composition located.
[0048]
With the label printer 200 configured as described above, the same operation and effect as those of the embodiment of the present invention can be obtained.
Further, in the drawer portion 37, a coating roller 39 and a delivery roller 40 having a smaller diameter than the coating roller 39 are rotatably supported, and a lower portion is rotatably supported by a fixing member 42 so as to be rotatable around the fixing member. Since the moving plate 41 is provided and the application roller and the delivery roller can be replaced at a position facing the conveyance roller with the rotation of the rotation plate 41, the rewet adhesive on the back surface of the label piece 6 is provided. It is possible to select whether or not to apply moisture to the layer, and it is possible to continuously issue labels without applying moisture to the label pieces 6 and easily stock them.
[0049]
In the embodiment of the present invention, the rewetting adhesive label 1 has a configuration having a thermosensitive coloring layer, but may have a configuration in which transfer printing is performed using an ink ribbon.
It goes without saying that it can be changed as appropriate without departing from the spirit of the present invention.
[0050]
【The invention's effect】
As is clear from the above description, the following effects can be obtained in the present invention.
In the label printer, the rewet adhesive label used in the label printer is provided with water at the drawer portion by using a rewet adhesive which is tacky by being provided with water. As it does not have adhesive properties, stable printing can be performed without the adhesive of the re-wet adhesive label adhering to each part and causing transport failure, and without causing cutter failure due to glue accumulation at the cut part. Has the effect.
A measuring means for measuring the time from when the label piece is detected by the sensor disposed at the issuing port to when it is not detected, and when a time measured by the measuring means elapses a predetermined time, a time-out is performed. And a time-out means for reversely transporting the label piece protruding from the issuing port and holding the label piece in the label printer, and a normal transport of the label piece which is reversely transported after the time-out and held in the label printer again to apply the wet adhesive. Since the re-issuing means for providing moisture is provided, without losing the label pieces, the re-wet adhesive of the label pieces is dried, and even if the adhesive strength is weakened, the moisture is re-applied. Thus, there is an effect that a label piece that always has stable adhesiveness can be provided.
In the drawer portion, the application roller and a delivery roller having a smaller diameter than the application roller are rotatably supported, and a lower portion has a rotation plate rotatably supported by a fixed member so as to be rotatable around the fixed member, The application roller and the delivery roller can be replaced at the position facing the conveyance roller with the rotation of the rotating plate, so whether to apply moisture to the rewetting adhesive application surface on the back side of one label is selected. This makes it possible to issue labels continuously without adding moisture to the label pieces and easily stock them.
[Brief description of the drawings]
FIG. 1 is a schematic side view of a label printer according to a first embodiment of the present invention.
FIG. 2 is a block diagram showing a control unit of the label printer according to the embodiment of the present invention.
FIG. 3 is a flowchart illustrating print control of the label printer according to the embodiment of the present invention.
FIG. 4 is a schematic side view of a label printer according to a second embodiment of the present invention.
FIG. 5 is a perspective view showing a drawer of a label printer according to a second embodiment of the present invention.
FIG. 6 is an explanatory diagram illustrating an operation of a drawer of the label printer according to the second embodiment of the present invention.
FIG. 7 is a schematic side view of a conventional label printer.
[Explanation of symbols]
1 Rewetting adhesive label 2 Supply unit 3 Printing unit 4 Cutting unit 5 Pull-out unit 6 Label piece 7 Supply shaft 8 Guide roller 9 First sensor 10 Control unit 11 Print head 12 Platen roller 13 Cutter 14 Application roller 15 Transport roller 16 Water storage Tank 17 Absorber 18 Auxiliary roller 19 Second sensor 20 Issue port 21 Intermediate frame 100 Label printer

Claims (5)

A printing unit including a platen roller that conveys a belt-shaped label coated with a rewetting adhesive that is tacky by being provided with moisture on the back surface and a print head that performs printing on the surface of the band-shaped label,
A cutting unit that cuts the band-shaped label printed by the printing unit to form a label piece,
A drawer that conveys the label piece by nipping it between a conveying roller and an application roller that imparts moisture to the rewetting adhesive application surface of the label piece,
A sensor for detecting the presence or absence of the label piece conveyed by the drawer,
A control unit for controlling each unit,
A label printer comprising: The drawer unit has a rotating plate that is rotatably supported by the fixing roller and the lower portion is rotatably supported by the fixing member and the lower portion is rotatably supported by the coating roller and the delivery roller,
2. The label printer according to claim 1, wherein the rotation plate is capable of replacing the application roller and the delivery roller at a position facing the conveyance roller. 3. 3. The label printer according to claim 1, wherein the drawer includes a water storage member that contains water and slidably contacts the application roller to apply water. 4. The label printer according to claim 2, wherein the delivery roller has a smaller diameter than the application roller. The control unit is a measuring unit that measures the time from when the label piece is detected by the sensor to when it is not detected,
Timeout when the time measured by the measurement means has passed a predetermined time, timeout means to reversely transport and hold the label piece,
A re-issuing unit that forwardly transports the label piece that is reversely transported and held after the timeout and applies moisture to the rewetting adhesive application surface,
The label printer according to any one of claims 1 to 4, further comprising:

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