JP4593340B2 - Label printer and control method of label printer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a label printer in which read/write for RFID is ensured by performing back feed up to an optimal position where an inlet incorporating RFID can be read or written, and to provide a control method of label printer. <P>SOLUTION: After a continuous label body 50 positioned at a stripping portion P is fed back by a predetermined length S in the direction B reverse to the carrying direction by a drive section, communication with an RFID inlet 55 is performed at an RFID read/write section T while performing back feed furthermore. Back feed is stopped at a moment when response to the RFID inlet 55 is obtained, and desired information for the RFID inlet 55 is written in at the RFID read/write section T. After writing is ended normally, the continuous label body 50 is carried in the carrying direction F by the drive section and the print position of a label L2 is positioned at a print part H where a desired content is printed. <P>COPYRIGHT: (C)2007,JPO&amp;INPIT

Description

In particular, the present invention relates to a label printer and a label printer control method in which reading / writing with respect to an RFID is ensured in a conventional print standard label printer.

Conventionally, for a label (including a cardboard tag) including a wireless IC tag (RFID) inlet (hereinafter simply referred to as “inlet” as appropriate) manufactured by processing an IC chip and an antenna coil, A printer that has a built-in RFID function for performing writing and reading and can perform printing on the surface of the paper has an RFID reading / writing antenna in addition to a printing mechanism (consisting of a thermal head or the like).
In such a printer, since the design philosophy of the conventional printer is inherited, printing is given priority. The print start position of the label (or tag) is positioned on the thermal head, and the RFID is read at that position. In addition to reading / writing to the RFID of the inlet using a writing antenna, a predetermined content is printed on a label via a thermal head.
However, in a printer in which an RFID read / write antenna is disposed immediately before the thermal head, when writing data to the inlet immediately before printing on the label, a metal thermal is used at the label printing start position, which is the home position of a normal printer. There is a problem that the communication state of the RFID read / write antenna with respect to the inlet built in the label is not always good due to interference with the head.
In addition, when the size of the inlet sealed in the label is reduced in the future, the front and rear labels of the label continuum in which the label is temporarily attached to a long mount will have a length equivalent to one conventional label. A plurality of labels (with built-in inlets) that are close to each other are arranged, and the label to be written is not necessarily positioned in the communication range of the RFID read / write antenna, and the type of label changes. More specifically, each time the position of the inlet antenna coil changes, there is a problem that the position of the RFID read / write antenna needs to be adjusted to the optimum communication position with respect to the inlet antenna coil.
Also, if the label is positioned at the label printing start position, the inlet may exist at a position away from the RFID read / write antenna depending on the type of the label, and immediately the read / write of the inlet to the RFID ( There was a problem that communication was not possible (for example, refer to the prior art in Patent Document 1).
In order to solve the above problem, it is possible to select a slot for mounting the RFID read / write antenna according to the position of the inlet on the label, or to change the mounting position of the antenna along the paper conveyance direction. A possible attachment mechanism is provided, and the RFID read / write antenna is positioned at the inlet by moving the attachment mechanism (see, for example, Patent Document 1).
However, when a plurality of slots are provided, there is a problem that the number of parts increases and the apparatus becomes expensive.
In addition, when an attachment mechanism that can be changed along the paper conveyance direction is provided, there is a problem that not only the apparatus is increased in size but also the number of parts is increased and the apparatus is expensive.
Japanese Patent Laid-Open No. 2002-2026

The present invention has been made paying attention to the above-mentioned problems, and is a label that ensures reading / writing with respect to an RFID by back-feeding to an optimum position where reading / writing with respect to an inlet incorporating the RFID is possible. It is an object of the present invention to provide a control method for a printer and a label printer.

The label printer according to the present invention includes a label continuum in which a label containing an RFID inlet is temporarily attached on a mount, a supply unit for mounting the label continuum, a printing unit for printing on the label, and the supply RFID reading / writing provided between the conveyance path formed between the printing section and the printing section, a peeling section for peeling the label from the continuous label body, and reading / writing to the RFID inlet provided in the conveyance path. A label printer comprising: a drive unit that transports the label continuum from the supply unit to the printing unit side, and a rotation unit that rotates in the reverse direction of transport; and a control unit that controls the units. After a predetermined length backfeed to the RFID read / write unit from the terminal end of the label the label strip positioned in said stripping unit in the transport direction opposite Further, the RFID read / write unit communicates with the RFID inlet while backfeeding, and the backfeed is stopped when the response of the RFID inlet is obtained. The desired information for the RFID inlet is received by the RFID read / write unit. After the writing is completed normally, the drive unit transports the label continuum in the transport direction, positions the label printing position on the printing unit, and prints the desired content on the printing unit. Features.
Further, the label printer control method according to the second aspect of the invention includes a drive unit that drives a continuous label body in which a label containing an RFID inlet is temporarily attached on a mount in the transport direction and the reverse direction, and the RFID of the label. In a control method of a label printer comprising an RFID read / write unit that performs reading / writing on an inlet, a printing unit that prints desired contents on the label, and a peeling unit that peels off the printed label. A first backfeeding step of backfeeding the label continuum positioned at the peeling portion for a predetermined length from the terminal end portion of the label to the RFID reading / writing portion in the transport reverse direction; After the back feed, a second back feed step for back feeding the label continuum; At the time of backfeed of the label continuum by the backfeed step, the response presence / absence determination step for determining whether or not there is a response from the RFID inlet and the determination at the response presence / absence determination step determine that there is a response from the RFID inlet. 2 is stopped, the RFID read / write unit reads / writes the RFID inlet, and the RFID read / write step normally reads / writes the RFID inlet. When the RFID read / write determination step for determining whether or not the determination is completed and the determination by the RFID read / write determination step is determined to be normal, the drive unit transports the label continuum to position the label on the print unit. Direction A first forward feed step for conveying to the printing portion, a printing step for printing a desired content on the label positioned in the printing portion, and the driving for peeling the label that has been printed by the printing step at the peeling portion. A second forward feed step for transporting the label continuum in the transport direction at the part and positioning it at the peeling position, and a label presence / absence for determining whether the label peeled off at the peeling part is removed from the mount And a detecting step.
Furthermore, an input step capable of setting a predetermined length for backfeeding in the first backfeed step can be provided.
Furthermore, a command generation step of setting a predetermined length to be back-fed in the first back-feed step by an online command can be provided.
Furthermore, an input step capable of setting a predetermined length to be back-fed in the first back-feed step is provided, and is automatically calculated and set from the distance from the leading end portion of the label input in this input step to the RFID inlet. A back feed amount setting step can be provided.

In the label printer according to the present invention, the label continuous body positioned in the peeling unit is back-fed for a predetermined length in the conveyance reverse direction, and further, the RFID reading / writing unit performs communication with the RFID inlet while back-feeding. Since the desired information is written into the inlet, there is an effect that reading / writing with respect to the label in which the RFID inlet is incorporated is ensured.
In the label printer control method according to the second invention, the continuous label body positioned at the peeling position is back-fed for a predetermined length by the first back-feeding step, and the back-feeding by the second back-feeding step. While feeding, writing to the RFID inlet is performed, and when writing is completed normally, the label is positioned and printed by the first forward feed step, so reading / writing to the label with the RFID inlet built-in is performed. There is an effect that writing is ensured.

    The configuration and operation of an embodiment of a label printer according to the present invention will be described below with reference to FIGS.

FIG. 1 is a perspective view showing a continuous label body 50 wound in a roll shape used in the printer of this embodiment. As shown in the figure, the label continuum 50 is configured by a large number of labels L being temporarily attached at predetermined intervals to a mount (release paper) 51 formed in a strip shape.
The label L is provided with an RFID (Radio Frequency-Identification) inlet 55 including an IC (Integrated Circuit) chip 53 and an antenna 54. Further, detection marks 56 are printed on the back surface of the mount 51 at predetermined intervals.
FIG. 1 is an example of the label continuum 50, and the configuration of the label continuum 50 is not limited to this. For example, the label L is continuously connected on the mount 51. Also good.

FIG. 2 is an explanatory side view showing a schematic structure of the label printer 1 of the present embodiment.
As shown in the figure, a label printer (hereinafter simply referred to as “printer” as appropriate) 1 mainly includes a label supply unit 2, a printing unit 3, a ribbon unit 4, an RFID reading / writing unit 5, a driving unit 6, The peeling unit 7, the mount winding unit 8, the position detection sensor unit 9, the peeling sensor unit 25, and the control unit 10 are configured.
The label supply unit 2 includes a supply shaft 11, and the continuous label body 50 is attached to the supply shaft 11.
The printing unit 3 includes a platen roller (hereinafter simply referred to as “platen”) 12 and a thermal head 13 which are disposed to face each other, and the platen 12 is connected to a stepping motor (hereinafter, appropriately, via a belt 14). (Hereinafter simply referred to as “motor”) 15. The platen 12 rotates in the forward or reverse direction according to the rotation of the motor 15, and the platen 12, the belt 4, and the motor 15 constitute a drive unit 6.
The label continuum 50 attached to the label supply unit 2 is supplied to the printing unit 3 through the auxiliary roller 23, is sandwiched between the platen 12 and the thermal head 13, and is further conveyed downstream. It has become.
The ribbon unit 4 includes a ribbon supply unit 17 on which the ink ribbon 16 is mounted and a ribbon winding unit 18. The ink ribbon 16 attached to the ribbon supply unit 17 is sandwiched between the platen 12 of the printing unit 3 and the thermal head 13 via the auxiliary roller 19 and wound around the ribbon winding unit 18 via the auxiliary roller 20. It has become.
The RFID reading / writing unit 5 is disposed in a conveyance path 21 formed between the label supply unit 2 and the printing unit 3 and includes an “antenna” described later. Then, the “antenna” of the RFID read / write unit 5 communicates with the IC chip 53 via the antenna 54 of the RFID inlet 55 of the label L, and writes desired information to the IC chip 53 or the desired information from the IC chip 53. Information is read.
The peeling unit 7 is provided on the downstream side of the printing unit 3 from which the label continuous body 50 mounted on the label supply shaft 2 is fed, and includes a peeling plate 22. When only the mount 51 is changed in the direction opposite to the feeding direction called “turning”, the label L temporarily attached on the mount 51 is peeled off.
The mount winding unit 8 is configured to wind only the mount 51 turned by the peeling unit 5 through auxiliary rollers 24 and 26.
The position detection sensor unit 9 is provided in the conveyance path 21 and detects the detection mark 56 of the label continuum 50. The position detection sensor unit 9 is synchronized with the detection of the detection mark 56. Thus, the label continuous body 50 is transported in the reverse transport direction, or printing is started.
The peeling sensor unit 25 is a sensor that detects the presence or absence of the label L peeled from the mount 51 of the label continuous body 50 by the peeling plate 22 of the peeling unit 7. The mount on the peeling plate 22 after the label L is peeled off. 51 is ON, i.e., "with label" is recognized, while when label L is peeled off from the backing 51 on the peeling plate 22, it is turned off, i.e., "no label" is recognized. The ON / OFF signal is sent to the control unit 10.
The control unit 10 is connected to the respective units and controls the respective units according to signals from the respective units.

Next, the control unit 10 of the printer 1 will be mainly described with reference to FIG.
FIG. 3 is a block diagram showing the main part of the printer 1.
As shown in the figure, a control unit 10 of the printer 1 includes a ROM (Read Only Memory) 30 that stores a predetermined control program, and a CPU (central) that operates according to the control program stored in the ROM 30 and controls each unit. a processing unit) 31, a RAM (Random Access Memory) 32 for storing various data and print images necessary for the operation of the CPU 31, a motor control unit 33 for supplying a pal signal to the motor 15 and rotating the motor. The CPU 31 generates a control signal corresponding to print data such as characters, figures, and barcodes to be printed supplied based on the print image stored in the RAM 32 from the CPU 31 and supplies the control signal to the thermal head 13 for printing operation. Print controller 34 and CPU 31 Under the control, the light emitting part of the position detecting sensor part 9 is controlled to emit light and the electric signal emitted from the light emitting part is received by the light receiving part and supplied to the CPU 31 and to the peeling part 7. The peeling sensor control unit 36 that receives the ON / OFF signal of the peeling sensor unit 25 that detects the presence or absence of the peeled label L and supplies it to the CPU 31, and controls the rotation of the mount winding unit 8 and the ribbon winding unit 18. A winding control unit 37 that controls the RFID reading / writing unit 5, and an EEPROM (electrically erasable and programmable readable) that stores various data that should be retained even when the power is turned off. only memory) 39 and an input unit 4 for inputting various data. When, and a display portion 41 for displaying input data and various information from the input unit 40. Input data input from the input unit 40 is supplied to the CPU 31 via the interface 42, and display data corresponding to various information displayed on the display unit 41 is supplied from the CPU 31 via the interface 42. ing. In addition, data can be transmitted / received to / from a device such as a personal computer (PC) 44 connected to the outside via the external interface unit 43.

Next, the operation state in the printer 1 will be described with reference to FIG.
FIG. 4 is a diagram showing a positional relationship between the label continuum 50, the peeling position P, the print position H, and the RFID read / write position T.
The RFID read / write unit 5 includes the antenna Y that communicates with the antenna 54 of the RFID inlet 55 of the label L, and writes / reads desired information to / from the IC chip 53 via the antenna 54 of the RFID inlet 55. Is supposed to do.
First, FIG. 4A shows a state in which when the printer 1 is turned on, the leading label L1 is positioned at the peeling position P, specifically the position of the peeling plate 22, and then removed. Show. When the label L1 is removed, the peeling sensor unit 25 is turned OFF and "no label" is detected (label presence / absence detection step). Therefore, the motor 15 is rotated backward to feed the label continuous body 50 back-feed (conveying reverse direction (arrow) The RFID inlet 55 of the label L2 that exists next to the removed label L1 passes through the print position H (specifically, the position of the thermal head 13) (in FIG. 4B). Status), the RFID reader / writer 5 is positioned.
The leading label L1 is positioned at the peeling position P in FIG. 4A, and the next label L2 after being removed is back-fed by a predetermined length S (first back-feeding step). The predetermined length S at this time is the length from the rear end of the leading label L2 to the RFID read / write position T, more specifically, the length to the antenna Y of the RFID read / write unit 5. , Converted into the number of steps of the motor 15 and set. That is, the label L2 positioned at the print position H is subjected to the first backfeed step by a predetermined length S from the rear end of the label L2 to the RFID read / write position T where the antenna Y is installed. Unconditionally backfeed.
In addition, before and after, the length and the distance are assumed to be set after being converted into the number of steps of the motor 15 as described above.
Then, the label L2 whose rear end is positioned on the antenna Y is further transported in the transport reverse direction B (second backfeed step). During conveyance in the conveyance reverse direction B, communication (reading) is performed from the antenna Y to the antenna 54 of the RFID inlet 55 of the label L2, and it is confirmed whether or not there is a response from the antenna 54 (response presence determination step).
Then, as shown in FIG. 4 (c), the antenna 54 of the label L2, RFID reading / position of the antenna Y write position T is almost matched positions, the antenna 54 of the label L2 and the RFID read / write unit When the communication (reading) with the antenna Y of 5 is determined to be “present”, the conveyance in the conveyance reverse direction B by the second backfeed step is stopped and the desired writing information is transmitted from the antenna Y. Then, the desired information is written to the IC chip 53 via the antenna 54 of the label L2 (RFID read / write step), and it is determined whether or not the writing is normally completed (RFID write determination step).
When it is determined that the writing has been normally completed, the motor 15 is rotated forward in order to carry out printing on the label L2, and the continuous label body 50 is conveyed to the downstream side (conveying direction F) of the printing unit 3 ( First forward feed step).
As shown in FIG. 4D, when the label L2 is positioned at the print position P, specifically, the thermal head 13, print data is sent from the thermal head 13 via the print control unit 34, and the label L2 is desired. Print information (printing step).
Next, in order to position the label L2 on which the desired information is written on the IC chip 53 of the RFID inlet 55 and the desired information is printed on the surface at the peeling position P, the motor 15 is further rotated in the transport direction F. The label continuous body 50 is conveyed (second forward feed step).
As shown in FIG. 4E, when the label L2 reaches the peeling position P, specifically, the peeling plate 22 position, the label L2 is peeled from the mount 51 and detected by the peeling sensor 25, the motor. 15 stops and waits for the label L2 to be peeled off.
Then, when the peeling sensor 25 detects that the label L2 has been peeled off, the process from FIG. 4A is repeated.

As described above, when the label L1 is peeled off at the peeling position P, the next label L2 is passed through the printing position H from the rear end portion of the label L2 to the antenna Y of the RFID read / write unit 5 by a predetermined length. S is unconditionally back-feeded, and the label L2 whose rear end is positioned on the antenna Y is further fed back to the position where there is a response while communicating from the antenna Y to the antenna 54 of the label L2. Since the conveyance in the conveyance reverse direction B is stopped when “is determined”, the reading / writing with respect to the label L2 is ensured.

Further, by using the label continuous body 50 with the mount 51, there is less loss such as "slip" compared to a continuous body without a mount such as a tag, and the back feed and forward feed by the stepping motor 15 can be performed reliably. It is.

Next, another embodiment of the operating state of the printer 1 will be mainly described based on FIG.
In the following, the same parts as those in the previous embodiment are designated by the same reference numerals, and detailed description thereof is omitted.
FIG. 5 is an explanatory view corresponding to FIG. 4, showing the positional relationship between the label continuum 50 and the peeling position P, the printing position H, and the RFID reading / writing position T.
In the figure, R is the distance from the tip of the label L2 to the antenna 54 of the RFID inlet 55, N is the distance from the antenna 54 of the RFID inlet 55 to the RFID read / write position, and M is printed from the tip of the label L2. The distance to the position H and Q indicate the distance from the print position H to the antenna 54 of the RFID inlet 55, respectively.
The control unit 10 of the printer 1 can execute the following processing.
(1) Setting input processing: Input a distance N from the antenna 54 of the RFID inlet 55 to the RFID read / write position T (specifically, the antenna Y of the RFID read / write unit 5) from the input unit 40. Can do. The distance N is an antenna Y of the RFID read / write unit 5 that is in a range in which communication (read / write) with respect to the RFID inlet 55 of the next label L2 can be performed from the state where the leading label L1 is peeled off at the peel position P. Since the distance N from the RFID inlet 55 to the antenna Y is determined by the types of “printer” and “label”, this can be input. The distance N input from the input unit 40 is stored in the EEPROM 39. This distance N is a predetermined length from the rear end of the label L2 next to the head label L1 positioned at the peeling position P to the antenna Y of the RFID read / write unit 5 in the previous embodiment. The first back feed step for unconditionally transporting the label L2 in the reverse direction B, and the label L2 whose rear end is positioned at the antenna Y, and the antenna Y from the antenna Y to the antenna 54 of the label L2 This is a distance corresponding to the total distance of each step of the second back feed step in which communication is performed and transported in the transport reverse direction B to a position where there is a response.
As described above, by enabling the input of the distance N, which is the “distance to return unconditionally”, it is possible to more reliably input / set the read / write communication range for the label L where the position of the RFID inlet 55 is different. Is.
About another structure, an effect | action, and an effect, since it is substantially the same as previous embodiment, detailed description is abbreviate | omitted.

Further, another embodiment will be described with reference to FIG.
In the following, the same parts as those in the previous embodiment are designated by the same reference numerals, and detailed description thereof is omitted.
The control unit 10 of the printer 1 can execute the following processing.
(1) Setting input processing; The distance R from the leading end of the label L2 to the antenna 54 of the RFID inlet 55, which is roughly measured by the user with an object pointing or the like, can be input from the input unit 40.
(2) Automatic calculation process: The distance (length) R input from the input unit 40 is stored in the EEPROM 39 and the following automatic calculation is performed.
N = (M + Q−R) Formula (I)
The distance other than the distance R from the leading end of the label L2 to the antenna 54 of the RFID inlet 55 input by the user, that is, the distance M from the leading end of the label L2 to the printing position H, and the RFID inlet 55 from the printing position H. Since the distance Q to the antenna 54 is determined by the types of “printer” and “label”, it is assumed to be stored in the EEPROM 39 in advance.
By inputting the length (distance) R roughly measured by the user, the antenna Y (RFID read / write position) of the RFID read / write unit 5 from the antenna 54 of the TFID inlet 55 which is the “distance to return unconditionally”. T) is automatically calculated (backfeed amount setting step), so that even when the RFID inlet 55 is replaced with another type of continuous label, the printer can be used immediately. Is.
About another structure, an effect | action, and an effect, since it is substantially the same as previous embodiment, detailed description is abbreviate | omitted.

It should be noted that the configuration and operation of the above-described embodiment are examples, and it goes without saying that they can be changed as appropriate without departing from the spirit of the present invention.

For example, the conveyance distance (first backfeed amount) in the reverse conveyance direction B where the backfeed is unconditionally performed is set to the RFID read / write position T (the position of the antenna Y) from the rear end of the label 2 in the first embodiment. In the second and third embodiments, the distance N from the antenna 54 of the RFID inlet 55 to the RFID read / write position T has been described. However, the present invention is not limited to this. Of course, any input can be made from the input unit 40, and further, it can be set by an “online command” (not shown) (command generation step).

Although the printer 1 has been described for convenience of description, the printer 1 is of course not limited thereto, and the printer 1 is regarded as a “printing mechanism”, and a “suction board” (not shown) is provided in the vicinity of the peeling portion 7. This information can be written in the RFID inlet 55 and used on an “applying device” (not shown) for attaching a “label” printed on the surface to a desired object.

It is a schematic perspective view of the label continuous body used with the label printer of this invention. FIG. 2 is a schematic side view illustrating an example of the printer. FIG. 3 is a block diagram showing the main part of the printer of FIG. It is a schematic explanatory drawing which shows an operation state similarly. FIG. 5 is a schematic explanatory view corresponding to FIG. 4 showing another embodiment.

Explanation of symbols

L Label Y Write antenna H Print position P Peel position T RFID read / write position 1 Label printer (printer)
2 Label supply unit 3 Printing unit 4 Ribbon unit 5 RFID read / write unit 6 Drive unit 7 Peeling unit 8 Mount take-up unit 9 Position detection sensor unit 10 Control unit 11 Supply shaft 12 Platen roller (platen)
13 Thermal head 14 Belt 15 Stepping motor (motor)
16 Ink ribbon 17 Ribbon supply unit 18 Ribbon take-up unit 19, 20 Auxiliary roller 21 Transport path 22 Peeling plates 23, 24, 26 Auxiliary roller 25 Peeling sensor unit 30 ROM
31 CPU
32 RAM
33 Motor control unit 34 Print control unit 35 Position detection sensor control unit 36 Peel sensor control unit 37 Winding control unit 38 RFID read / write control unit 39 EEPROM
40 Input unit 41 Display unit 42 Interface 43 External interface unit 44 Personal computer (PC)
50 Label continuum 51 Mount 53 IC chip 54 Antenna 55 RFID inlet 56 Detection mark

Claims (5)

A label continuum in which a label containing an RFID inlet is temporarily attached to a mount;
A supply unit for mounting the label continuum;
A printing unit for printing on the label;
A conveyance path formed between the supply unit and the printing unit;
A peeling portion for peeling the label from the label continuum;
An RFID read / write unit that is provided in the middle of the conveyance path and performs read / write on the RFID inlet;
A drive unit that conveys the label continuum from the supply unit to the printing unit side, and rotates in the opposite direction of conveyance;
In a label printer comprising a control unit that controls each of the units,
After back feeding the label continuum positioned at the peeling unit by the driving unit for a predetermined length from the terminal end of the label to the RFID reading / writing unit in the reverse direction of conveyance,
Further, the RFID read / write unit communicates with the RFID inlet while backfeeding,
Stop the backfeed when the response of the RFID inlet is obtained,
Write desired information to the RFID inlet by the RFID read / write unit,
After writing is completed normally, the label continuous body is transported in the transport direction by the drive unit, and the printing position of the label is positioned on the printing unit.
A label printer, wherein desired contents are printed by a printing unit. A drive unit that drives a label continuous body in which a label containing an RFID inlet is temporarily attached on a mount in a transport direction and a transport reverse direction;
An RFID reading / writing unit for reading / writing the RFID inlet of the label, and a printing unit for printing desired contents on the label;
In a control method of a label printer comprising a peeling part for peeling a printed label,
A first backfeed step of backfeeding the label continuum positioned in the peeling unit by the driving unit in a reverse direction to a predetermined length from the terminal end of the label to the RFID reading / writing unit ;
A second backfeed step of backfeeding the label continuum after the predetermined length of backfeed;
A response presence / absence determination step for determining presence / absence of a response from the RFID inlet at the time of backfeed of the label continuum in the second backfeed step;
When it is determined in the determination by the response presence / absence determination step that there is a response from the RFID inlet, the second back feed step is stopped, and reading / writing with respect to the RFID inlet is performed by the RFID reading / writing unit. A writing step;
RFID read / write determination step for determining whether or not the read / write with respect to the RFID inlet by the RFID read / write step has been normally completed;
A first forward feed step of transporting a continuous label body in the transport direction in the drive unit to position a label on the print unit when the determination in the RFID read / write determination step is normal;
A printing step for printing a desired content on a label positioned in the printing unit;
A second forward feed step in which the label continuous body is transported in the transport direction by the driving unit to position the label after the printing in the printing step has been completed in the peeling unit, and positioned at a peeling position;
A label presence / absence detection step for determining whether or not the label peeled off at the peeling portion has been removed from the mount;
A label printer control method comprising: Furthermore, the control method for a label printer according to claim 2, characterized in that it comprises a first back-feed input step capable of setting the predetermined length to backfeed step. 3. The label printer control method according to claim 2 , further comprising a command generation step of setting the predetermined length to be fed back in the first back feed step by an online command. Furthermore, an input step capable of setting the predetermined length to be back-fed in the first back-feed step is provided, and is automatically calculated from a distance from the leading end portion of the label input from the input step to the RFID inlet. The label printer control method according to claim 2, further comprising a backfeed amount setting step of setting.

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