JP2017019242A - Personal information printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a personal information printer which more certainly makes printed personal information difficult to read.SOLUTION: A personal information printer 1 is equipped with: a delivery shaft 2 which delivers an ink ribbon 21; a first heat source 4 having a first heat generator 5 which transfers ink of an ink layer of the ink ribbon 21 to a card base material 22 in a first pattern which is a character string of personal information; a roller 6 which conveys the card base material 22; a winding shaft 3 which winds up the transferred ink ribbon 21 so that a base film of the ink ribbon 21 is located outside; and a second heat source 7a having a second heat generator 8a which transfers ink of an ink layer of n-th transferred ink ribbon 21 (an integer n≥2) in the outermost layer of the transferred ink ribbon 21 wound up by the winding part to a base film of n-1-th transferred ink ribbon 21 adjacent to the inside of the n-th transferred ink ribbon 21 in a second pattern which is a character string different from the first pattern.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a personal information printing machine.

  2. Description of the Related Art In recent years, personal information printers using a hot-melt printing method that prints an image such as a character of a name or an identification number on a card base material used as an identification card or the like using an ink ribbon have become widespread. The ink ribbon has a base film extending in a strip shape and an ink layer formed on the base film and containing ink. Printing of personal information is executed by transferring ink to the card substrate in a pattern corresponding to an image of a desired character or the like.

  At this time, in the ink ribbon after ink transfer, ink missing traces, which are locations where ink has been removed by transfer to the card substrate, are present in a pattern corresponding to the printed image. For this reason, it is possible to specify an image such as a name or identification number printed on an identification card or the like, which is personal information that needs to be kept highly confidential, from the ink trace of the transferred ink ribbon. It was.

  Therefore, there is a technique for making it difficult to read the ink missing mark of the transferred ink ribbon by transferring a pattern different from personal information to the transferred ink ribbon.

  However, in the prior art, there is a case where a part of personal information can be read from the ink trace of the transferred ink ribbon.

JP 2014-76615 A

  Therefore, the problem to be solved by the present invention is to provide a personal information printing machine that makes it difficult to read the printed personal information more reliably from the ink missing trace of the transferred ink ribbon.

  In order to solve the above problems, a personal information printing machine according to an embodiment is a personal information printing machine that transfers ink of the ink layer to a card substrate using an ink ribbon having a base film and an ink layer, A feeding shaft for feeding out the ink ribbon, and a first heat source provided on the downstream side of the feeding shaft so as to be retractable from the base film side of the ink ribbon, by heating and pressing the ink ribbon, A first heat source having a first heating element for transferring the ink in the ink layer of the ink ribbon to the card base material in a first pattern that is a character string of personal information, and facing the first heat source and the ink Provided on the ink layer side of the ribbon, provided on the downstream side of the roller for conveying the card substrate, the first heat source and the roller, and the base film is located outside A winding shaft for winding the transferred ink ribbon, and an nth transferred ink ribbon (n ≧ 2) in the outermost layer of the transferred ink ribbon wound on the winding portion. ), The second heat source provided so as to be retractable, and by heating and pressing the nth transferred ink ribbon, the ink of the ink layer of the nth transferred ink ribbon is transferred to the first pattern. And a second pattern having a second pattern which is a character string different from that of the nth transferred ink ribbon and a second heating element that is transferred to the base film of the (n-1) th transferred ink ribbon adjacent to the inside of the nth transferred ink ribbon. A heat source.

1 is a schematic diagram showing a configuration of a personal information printing machine according to a first embodiment. The figure which expands and shows the 2nd heat source vicinity of the personal information printing machine which concerns on 1st Embodiment. 1 is a block diagram showing an electrical configuration of a personal information printing machine according to a first embodiment. The schematic diagram of a structure of the personal information printing machine which concerns on 2nd Embodiment. The figure which shows an example of the character string production | generation means of the personal information printing machine which concerns on 2nd Embodiment. (A) Card base material to which ink of ink ribbon has been transferred, (b) Ink ribbon having been transferred, (c1) Transfer completed after ink leakage has been concealed by the personal information printing machine according to the first embodiment (C2) The transferred ink ribbon in which the ink missing mark is concealed by the personal information printing machine according to the second embodiment. 10 is a flowchart illustrating an example of a slack removal process of an ink ribbon of a personal information printing machine according to a third embodiment. (A) The transferred ink ribbon, (b1) The transferred ink ribbon in which the ink missing trace has not been concealed, and (b2) The ink missing trace is concealed by the personal information printing machine according to the third embodiment. FIG. 5 is a diagram showing a transferred ink ribbon that has been transferred. 10 is a flowchart illustrating an example of a final winding process of an ink ribbon of a personal information printing machine according to a fourth embodiment.

  Hereinafter, a personal information printing machine 1 according to an embodiment will be described with reference to the drawings.

(First embodiment)
First, the configuration of the personal information printing machine 1 according to the first embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a schematic diagram showing a configuration of a personal information printing machine 1 according to the first embodiment. FIG. 2 is an enlarged view showing the vicinity of the second heat source 7 of the personal information printing machine 1 according to the first embodiment.

  The personal information printing machine 1 according to the first embodiment is an apparatus provided inside an identification card issuing machine that issues an identification card in which personal information and a face photograph are printed on a card base 22.

  The personal information printer 1 according to the first embodiment is provided with an ink ribbon 21 and a card base 22 is prepared. The personal information printing machine 1 according to the first embodiment includes a feed shaft 2 that feeds an ink ribbon 21 that is initially set in a state wound around an axis in a direction indicated by a black arrow, and a downstream side of the feed shaft 2. The first heat source 4 and the roller 6 for printing a first pattern, which will be described later, on the card base 22 and the downstream side of the first heat source 4 and the roller 6, and the ink ribbon 21 is rotated around the axis. Are wound around the winding shaft 3 and wound up in the direction indicated by the black arrow, and are provided in the vicinity of the winding shaft 3 and have been transferred to the ink ribbon 21. The second heat source 7a for transferring a second pattern, which will be described later, and a control unit 10 (shown in FIG. 3) for controlling these units. The ink ribbon 21 is conveyed along a plurality of guide rollers 9. The first heat source 4 has a first heating element 5, and the second heat source 7 a has a second heating element 8 a.

  As shown in the enlarged view of FIG. 2, the ink ribbon 21 is a belt-shaped intermediate transfer body having a base film 23 and an ink layer 24, and a heat-meltable ink is applied to the base film 23.

  The feeding shaft 2 and the winding shaft 3 are roll-shaped rotating shafts around which the ink ribbon 21 is wound. The ink ribbon 21 is fed from the feed shaft 2 to the take-up shaft 3 by mainly driving the take-up shaft 3 and rotating it in the direction indicated by the black arrow. When stopping the feeding of the ink ribbon 21 by the drive of the winding shaft 3, the feeding shaft 2 is rotated for a short time in the direction opposite to the direction indicated by the black arrow in order to suppress the extra feeding due to the moment of inertia. To drive. This prevents the ribbon from sagging. A plurality of guide rollers 9 are arranged between the delivery shaft 2 and the take-up shaft 3 and assist the delivery of the ink ribbon 21.

  The ink ribbon 21 is first installed in the personal information printing machine 1 according to the first embodiment by an operator or a machine. At this time, the ink ribbon 21 is in a state where the ink ribbon 21 is wound around the delivery shaft 2 several times so that the ink layer 24 of the ink ribbon 21 is positioned outside the base film 23. In addition, the ink ribbon 21 is wound around the winding shaft 3 at least once so that the base film 23 of the ink ribbon 21 is positioned outside the ink layer 24. Further, it is in a state of being tensioned along the plurality of guide rollers 9 without sagging.

  Depending on the arrangement of the guide roller 9 along the ink ribbon 21 and the arrangement of the first heat source 4 and the roller 6 to be described later, the base film 23 of the ink ribbon 21 is positioned outside the ink layer 24 in the ink ribbon 21. As described above, the ink ribbon 21 may be wound around the delivery shaft 2.

  The card substrate 22 is printed with a first pattern, which is a character string of personal information that is an image such as a character of a name or an identification number, by transferring the ink in the ink layer 24 of the ink ribbon 21. It is a transcript. The first pattern is a unique character string for each card substrate 22.

  The card base material 22 is inserted into an identification card issuing machine by an operator or a machine, or stocked inside the identification card issuing machine. When the card base 22 is thus prepared, the card base 22 is ready to be conveyed toward the personal information printing machine 1 inside the identification card issuing machine.

  When the ink ribbon 21 is installed on the delivery shaft 2 and the take-up shaft 3 along the plurality of guide rollers 9, and the card substrate 22 is prepared, the personal information printing machine 1 according to the first embodiment is The personal information printing process and the personal information concealment process are started.

  First, the ink ribbon 21 is sent out in the direction indicated by the black arrow by rotating the winding shaft 3. At the same time, the card substrate 22 is transported to the printing position in the personal information printing machine 1 where the first heat source 4 and the roller 6 are installed.

  The first heat source 4 includes a first heating element 5, and heats the first heating element 5 to thermally melt a part of the ink in the ink layer 24 of the ink ribbon 21. The first heat source 4 is, for example, a movable thermal head. The first heat source 4 is provided so as to be retractable in the direction indicated by the arrow D1. The first heat source 4 is in a position where it contacts the ink ribbon 21 and presses the ink ribbon 21 during the personal information printing process, and is away from the ink ribbon 21 except during the personal information printing process.

  Since the first heat source 4 is provided so as to be retractable, when the heating by the first heat source 4 is not required as in the case where the winding drive is stopped, the first heat source 4 is retracted. By retracting 4 in the direction indicated by the arrow D1, the contact with the ink ribbon 21 at the printing position can be arbitrarily stopped.

  The roller 6 supports and conveys the card substrate 22. The roller 6 is provided to be freely rotatable. The card substrate 22 is conveyed in the direction indicated by the white arrow by the rotation of the roller 6 in the direction indicated by the arrow R1.

  Information on the character string (first pattern) of the personal information to be printed on the card base 22 is obtained from a higher-level device (not shown) of the identification issuing machine for each print frame corresponding to one card base to be printed. It is transmitted to the control unit 10.

  The first heat source 4 and the roller 6 sandwich the ink ribbon 21 and the card substrate 22. The card substrate 22 is conveyed in the direction indicated by the white arrow while being sandwiched. During this time, the first heat source 4 heats the first heating element 5 in accordance with the first pattern in accordance with the conveyance speed of the card substrate 22 conveyed by the rotation of the roller 6. As a result, the ink in the ink layer 24 of the ink ribbon 21 is thermally melted in the first pattern and transferred to the card substrate 22 in the first pattern. That is, personal information is printed on the card base 22 (see FIG. 6A).

  At the same time, ink missing traces, which are locations where ink has been removed by transfer to the card substrate 22, are formed in the ink layer 24 of the ink ribbon 21 in a shape corresponding to the first pattern (FIG. 6B). reference).

  Thus, the personal information printing process is executed. By printing the first pattern, which is a character string of personal information, on the card base 22, the card base 22 can identify the owner such as an identification card.

  Thereafter, the card substrate 22 on which the personal information is printed is transported inside the identification card issuing machine, and is discharged to the outside of the identification card issuing machine through other processes such as printing of a face photo. .

  On the other hand, the transferred ink ribbon 21, which has been transferred to the ink ribbon 21 by the ink heat trace formed by the first heat source 4, is a print frame corresponding to one card substrate to be printed next. The personal information is printed and sent out sequentially and taken up by the take-up shaft 3.

  Here, as shown in FIG. 2, in the first embodiment, the transferred ink ribbon 21 positioned in the outermost layer among the transferred ink ribbons 21 wound around the winding shaft 3 is transferred to the nth transferred state. Transferred ink, referred to as an ink ribbon 21 (an integer of n ≧ 2), wound around the winding shaft 3 inside the nth transferred ink ribbon 21 and adjacent to the nth transferred ink ribbon 21 The ribbon 21 is referred to as an (n-1) th transferred ink ribbon 21.

  Similarly, the transferred ink ribbon 21 wound around the winding shaft 3 on the inner side of the (n−1) th transferred ink ribbon 21 and adjacent to the (n−1) th transferred ink ribbon 21 is It will be referred to as an n-2 transferred ink ribbon 21.

  That is, the transferred ink ribbon 21 in the kth layer from the outermost layer (an integer satisfying 1 ≦ k ≦ n) is referred to as an (n + 1−k) th transferred ink ribbon 21.

  The second heat source 7a has a second heating element 8a, and heats the second heating element 8a to thermally melt part of the ink remaining in the ink layer 24 of the transferred ink ribbon 21. It is something to be made. In the personal information printing machine 1 according to the first embodiment, the second heat source 7a is a roller roller, and is a heater roller including a second heating element 8a that is a protrusion disposed on the outer periphery of the roller.

  The second heat source 7a is rotatably provided. For example, by rotating the second heat source 7a in the direction indicated by the arrow R2, the second heating element 8a on the outer periphery of the heater roller can be In contact with the n-th transferred ink ribbon 21 in the outermost layer in order, the ink is melted.

  In the second heat source 7a, a second pattern, which is a character string of confidential information that is an image of a predetermined character or the like, is configured by a second heating element 8a disposed on the outer periphery of the heater roller.

  When the second heat source 7a is pressed against the nth transferred ink ribbon 21 and rotated, for example, in the direction indicated by the arrow R2, the nth transferred ink ribbon is heated by the heated second heating element 8a. A part of the ink remaining in the 21 ink layer 24n is melted, and the second pattern is transferred to the base film 23n-1 of the (n-1) th transferred ink ribbon 21.

  At this time, an ink drop corresponding to the second pattern is formed in the ink layer 24n of the n-th transferred ink ribbon 21 in a state where the ink drop corresponds to the first pattern (FIG. 6 (c1)). )reference).

  The second pattern is set to be different from the first pattern in the first heat source 4. Here, the second pattern is a character string that is suitably set in advance. By forming ink traces corresponding to the second pattern in the ink layer 24n of the nth transferred ink ribbon 21, the personal information already formed in the ink layer 24n of the nth transferred ink ribbon 21 is used. The ink missing trace corresponding to a certain first pattern can be disturbed to be difficult to read.

  The personal information concealment process is executed as described above. The personal information concealment process can prevent the personal information printed on the card base material 22 from being identified from the shape of the ink missing trace of the transferred ink ribbon 21.

  In the winding shaft 3, as the winding proceeds, the outer diameter of the roll body constituted by the transferred ink ribbon 21 wound by the winding shaft 3 increases. In order to cope with such an increase in the outer diameter of the roll body, the second heat source 7a is provided to be movable in the radial direction of the roll body (the direction indicated by the arrow D2 and the opposite direction). Thus, the second heat source 7a is in contact with the nth transferred ink ribbon 21 in the outermost layer among the transferred ink ribbons 21 wound around the winding shaft 3 during the confidential processing of the personal information. The position is adjusted.

  Furthermore, the second heat source 7a is provided so as to be retractable in the direction indicated by the arrow D2. The second heat source 7a is in a position where the ink ribbon 21 is pressed against the transferred ink ribbon 21 during the personal information concealment process, and away from the transferred ink ribbon 21 during other than the personal information concealment process. It is in.

  Since the second heat source 7a is provided so as to be retractable as described above, the second heat source 7a can be used when heating by the second heat source 7a is not required as in the case where the winding drive is stopped. By retracting 7a in the direction indicated by the arrow D2, the contact with the transferred ink ribbon 21 wound around the winding shaft 3 can be arbitrarily stopped.

  Note that the temperature of the second heating element 8a is such that the ink n of the ink layer 24 of the nth transferred ink ribbon 21 is melted over the entire area, whereby the nth transferred ink ribbon 21 and the (n-1) th transfer. It is set low enough that the phenomenon that the finished ink ribbon 21 is bonded does not occur.

  Here, with reference to FIG. 3, the electrical configuration of the personal information printing machine 1 according to the first embodiment will be described. FIG. 3 is a block diagram showing an electrical configuration of the personal information printing machine 1 according to the first embodiment.

  The control unit 10 of the personal information printing machine 1 according to the first embodiment includes an ink ribbon winding control unit 11, a card base material conveyance control unit 12, a first pattern transfer control unit 13, and a second pattern transfer control. Part 14 and interface part 15. A winding shaft 3 and a delivery shaft 2 are connected to the ink ribbon winding control unit 11. A roller 6 is connected to the card substrate conveyance control unit 12. A first heat source 4 and a first heating element 5 are connected to the first pattern transfer control unit 13. A second heat source 7 and a second heating element 8 are connected to the second pattern transfer control unit 14. These control units 10 are connected to a host device (not shown) via the interface unit 15.

  The ink ribbon winding control unit 11 rotates the winding shaft 3 to send out the ink ribbon 21 in the direction indicated by the black arrow. Further, the ink ribbon take-up control unit 11 rotates the feed shaft 2 when the rotation of the take-up shaft 3 is stopped.

  As will be described later, the sagging removal process of the ink ribbon 21 when the ink ribbon 21 sags or the final winding process of the ink ribbon 21 when the remaining amount of the ink ribbon 21 falls below a predetermined value. In some cases, a value obtained by detecting the amount of sag or the remaining amount of the ink ribbon 21 may be input (not shown).

  The card substrate conveyance control unit 12 conveys the card substrate 22 in the direction indicated by the white arrow in FIG. 1 by rotating the roller 6.

  The first pattern transfer control unit 13 performs retraction control of the first heat source 4 and heating control of the first heating element 5. These controls are performed based on the first pattern information received from the host device (not shown) via the interface unit 15.

  The second pattern transfer control unit 14 performs retraction control of the second heat source 7a, position control in the outer diameter direction of the roll body, and heating control of the second heating element 8a.

  With the above configuration, the personal information printing process on the card base 22 and the personal information concealing process on the transferred ink ribbon 21 are completed. Inside the identification card issuing machine, the card base material 22 is fed out one by one with a certain interval, and the above processing is performed continuously.

  According to the personal information printing machine 1 according to the first embodiment, a part of the ink remaining in the ink layer 24 of the transferred ink ribbon 21 is further replaced with a second character string that is different from the first pattern. By melting with the pattern, the ink missing trace of the transferred ink ribbon 21 becomes the shape of a camouflage pattern in which the first pattern and the second pattern overlap. Therefore, even if a third party obtains the transferred ink ribbon 21, it is difficult to read the first pattern, which is personal information, from the ink missing trace of the camouflage pattern in which the first pattern and the second pattern overlap. It becomes.

(Second Embodiment)
Next, the configuration of the personal information printing machine 1 according to the second embodiment will be described with reference to FIG. FIG. 4 is a schematic diagram showing the configuration of the personal information printing machine 1 according to the second embodiment. In the personal information printing machine 1 according to the second embodiment, the second heat source 7b is not a heater roller but a movable thermal head, and can transfer a different second pattern each time it is transferred.

  The personal information printing machine 1 according to the second embodiment includes a delivery shaft 2, a first heat source 4, a first heating element 5, a roller 6, a winding shaft 3, and a second heat source 7b. And a second heating element 8b, a plurality of guide rollers 9, and a control unit 10 (shown in FIG. 3). The personal information printing machine 1 according to the second embodiment is provided with an ink ribbon 21 and a card substrate 22 is prepared.

  Except for the second heat source 7b and the second heating element 8b, the configuration is the same as that of the personal information printing machine 1 according to the first embodiment, and a description thereof will be omitted.

  In the personal information printing machine 1 according to the second embodiment, the second heat source 7b is, for example, a movable thermal head having a second heating element 8b. By heating the second heating element 8b, a part of the ink remaining in the ink layer 24 of the transferred ink ribbon 21 is thermally melted.

  The thermal head that is the second heat source 7b is controlled such that the second heating element 8b is in contact with the nth transferred ink ribbon 21 on the outermost layer of the winding shaft 3 and melts the ink.

  In the same manner as the second heat source 7a, the second heat source 7b is in contact with the nth transferred ink ribbon 21 in the outermost layer among the transferred ink ribbons 21 wound around the winding shaft 3. In order to adjust the position, the second heat source 7b is provided to be movable in the radial direction of the roll body (the direction indicated by the arrow D2 and the opposite direction).

  Similarly to the second heat source 7a, when the heating by the second heat source 7b is not required, the contact with the transferred ink ribbon 21 wound around the winding shaft 3 may be arbitrarily stopped. In order to make it possible, the second heat source 7b is provided so as to be retractable in the direction indicated by the arrow D2.

  By controlling the second heat source 7b and the second heating element 8b, a part of the ink n of the ink layer 24 of the nth transferred ink ribbon 21 is melted, and the base of the (n-1) th transferred ink ribbon 21 is melted. The second pattern is transferred to the film 23n-1.

  At this time, an ink drop corresponding to the second pattern is formed in the ink layer 24n of the nth transferred ink ribbon 21 in a state where the ink drop corresponds to the first pattern (FIG. 6 (c2)). )reference).

  The second pattern is set to be different from the first pattern in the first heat source 4. Here, the second pattern is a character string that is randomly generated. By forming ink traces corresponding to the second pattern in the ink layer 24n of the nth transferred ink ribbon 21, the personal information already formed in the ink layer 24n of the nth transferred ink ribbon 21 is used. The ink missing trace corresponding to a certain first pattern can be disturbed to be difficult to read.

  Here, the 2nd pattern which is a character string produced | generated at random is demonstrated with reference to FIG.3 and FIG.4.

  The second pattern transfer control unit 14 shown in FIG. 3 performs retraction control of the second heat source 7b, position control in the outer diameter direction of the roll body, and heating control of the second heating element 8b. These controls are performed based on the first pattern information received from the host device (not shown) via the interface unit 15.

  Alternatively, when the generation of the character string is performed by the host device (not shown) instead of the second pattern transfer control unit 14, these controls are performed by the host device received from the host device (not shown) via the interface unit 15. This is performed based on the information of the generated second pattern.

  In FIG. 3, for example, a case where the second pattern transfer control unit 14 generates a character string randomly will be described. In this case, the 2nd pattern transfer control part 14 transmits the information of the 2nd pattern which is the produced | generated random character string to the 2nd heat source 7b. In the personal information printing machine 1 according to the second embodiment, the second pattern can be generated for each transfer frame on the transferred ink ribbon 21 corresponding to the print frame for one card substrate. The generation frequency of the second pattern may be for each of a plurality of transfer frames corresponding to a plurality of card base materials.

  Subsequently, the second heating element 8b of the second heat source 7b heats and presses the n-th transferred ink ribbon 21 from the base film 23n side with the generated random character string (pattern 2). As a result, part of the ink remaining in the ink layer 24n of the nth transferred ink ribbon 21 is transferred onto the base film 23n-1 of the (n-1) th transferred ink ribbon 21.

  The heat energy applied by the heated second heat source 7b is not limited to the outermost layer (the nth transferred ink ribbon 21) of the transferred ink ribbon 21 that has been rewound in many layers. In some cases, the inner layer (the (n-1) -th transferred ink ribbon 21, the n-2th transferred ink ribbon 21,...) May be reached. At this time, the applied thermal energy can be applied to the portion of the transferred ink ribbon 21 that is wound to some extent on the inner layer.

  That is, a part of the ink remaining in the ink layer 24n of the nth transferred ink ribbon 21 is, for example, a base film of the (n-1) th transferred ink ribbon 21 in the second pattern generated at time Tb. In addition to being transferred onto 23n-1, at the same time, a part of the ink remaining in the ink layer 24n-1 of the (n-1) th transferred ink ribbon 21 was generated at time Tb. The second pattern is also transferred onto the base film 23n-2 of the (n-2) -th transferred ink ribbon 21. A part of the ink remaining in the ink layer 24n-1 of the (n-1) -th transferred ink ribbon 21 is before the transferred ink ribbon 21n-1 makes a round of the winding shaft 3 before this time. For example, the second pattern generated at time Ta has already been transferred onto the base film 23n-2 of the (n-2) -th transferred ink ribbon 21. Depending on the adjustment of the amount of applied thermal energy, the same transfer is performed also on the transferred ink ribbon 21 of the inner layer.

  That is, by the heating control (temperature adjustment) of the second pattern transfer control unit 14, the (n + 1−k) th transferred ink ribbon 21, which is the transferred ink ribbon 21 of the kth layer from the outermost layer, only by one heating and pressing. In this case, the ink in the ink layer 24n + 1-k of at least one layer of the transferred ink ribbon 21 is more than the n + 1-k transferred ink ribbon 21 in the second pattern. In some cases, the image is also transferred to the base film 23 nk of the n-k transferred ink ribbon 21 located on the inner side.

  Due to the heat from the second heating element 7b, the transferred ink ribbon 21 is substantially a plurality of times, a second pattern generated at the time Ta and a second pattern generated at the time Tb. In this way, the same effect is obtained when a different second pattern is transferred to the same location on the transferred ink ribbon 21 (the transfer frame on the transferred ink ribbon 21 corresponding to the printing frame for one card substrate). As a result, the ink missing trace of the transferred ink ribbon 21 has a camouflage pattern shape in which a plurality of types of characters are further overlapped. Therefore, it becomes even more difficult to read the first pattern, which is personal information, from the transferred ink ribbon 21.

  In the personal information printing machine 1 according to the first embodiment, the same second pattern is transferred each time, but the outer diameter of the roll body constituted by the transferred ink ribbon 21 wound around the winding shaft 3. As a result of the increase, the position where the second pattern is transferred is a little with respect to the transfer frame on the transferred ink ribbon 21 of each layer inside the outermost layer corresponding to the print frame for one card substrate. It will shift gradually. Along with this deviation, the shape of the ink dropout of the transferred ink ribbon 21 in the layer on the inner side of the outermost layer may be a camouflage pattern shape in which a plurality of types of characters overlap. Also in this case, it becomes even more difficult to read the first pattern, which is personal information, from the transferred ink ribbon 21.

  Here, with reference to FIG. 5, the character string generation means of the personal information printing machine 1 according to the second embodiment will be described. FIG. 5 is a diagram illustrating an example of a character string generation unit of the personal information printing machine 1 according to the second embodiment.

  An example of character string generation means for generating the second pattern, which is a randomly generated character string, is shown below.

(Example 1)
As a character string generating means for generating the second pattern, the second pattern transfer control unit 14 may include a storage unit (not shown) that stores a correspondence table as shown in FIG. This correspondence table is a table in which the superimposed character X of the first pattern and the superimposed character Y of the second pattern are assigned in advance. The superimposed character Y of the second pattern is a character that makes it difficult to identify the superimposed character X by superimposing the ink trace of the superimposed character Y of the second pattern on the ink trace of the superimposed character X of the first pattern. is there.

  The superimposed character X and the superimposed character Y can be made to be similar to each other in the outer peripheral shape of the characters, or a kanji having a large number of strokes can be randomly assigned to the superimposed character Y. In the example shown in FIG. 5, the hiragana superimposed character Y is used for the hiragana superimposed character X, the kanji superimposed character Y is used for the kanji superimposed character X, and the alphabet superimposed character Y is used for the alphabet superimposed character X. For each type of superimposed character X, a superimposed character Y belonging to the same type is assigned to the superimposed character X of Arabic numerals. Note that the superimposed character Y can be assigned to the superimposed character X completely randomly without classifying the character type.

  In this example, the superimposed character Y “country” is superimposed on the superimposed character X “field”, the superimposed character Y “rose” is superimposed on the superimposed character X “middle”, and the superimposed character X “ It is preset in the correspondence table shown in FIG. 5 that the superimposed character Y “o” is superimposed on “a” and the superimposed character Y “ha” is superimposed on the superimposed character X “i”. From this correspondence table, for example, when the character string “Ai Tanaka” is included in the character string of the first pattern, the second pattern including the character string “Kunibara Oh” is generated.

  Information of the first pattern is transmitted from the host device to the second pattern transfer control unit 14 via the interface unit 15. The second pattern transfer control unit 14 refers to the correspondence table stored in the storage unit based on the transmitted first pattern information. The second pattern transfer control unit 14 generates the second pattern by arranging the corresponding superimposed characters Y in order for each superimposed character X of the first pattern. The second pattern transfer control unit 14 transmits the character string in which the superimposed characters Y are arranged to the second heat source 7b as the second pattern information.

  Here, the “character” may include symbols such as “〒” and “-”. Further, a superimposed character Y corresponding to “space” included in the first pattern may be set.

  In addition to this example, not all of the one character of the superimposed character X of the first pattern may be unreadable. That is, depending on the similarity of the shape of the superimposed character X of the first pattern and the superimposed character Y of the second pattern, the superimposed character X of the first pattern may be legible. However, according to the embodiment of the present invention, an effect sufficient to at least make the character string of the entire first pattern unreadable is obtained.

  In this example, in particular, since the superimposed character Y that makes it difficult to specify the superimposed character X of the first pattern is preset, it is possible to read the first pattern that is personal information from the transferred ink ribbon 21. It becomes even more difficult.

(Example 2)
As a character string generation unit that generates the second pattern, the second pattern transfer control unit 14 may include a storage unit (not shown) that stores a set of superimposed characters Y. The set of superimposed characters Y includes, for example, part or all of hiragana, katakana, kanji, alphabet, Arabic numerals, Roman numerals, symbols, and the like.

  The second pattern transfer control unit 14 randomly extracts the superimposed character Y from the stored set of superimposed characters Y, and the transferred pattern of the transferred ink ribbon 21 corresponding to the region where the first pattern of the card substrate 22 is printed. A second pattern is generated so as to be arranged in the area of the transfer frame. The second pattern transfer control unit 14 transmits the character string in which the superimposed characters Y are arranged to the second heat source 7b as the second pattern information.

  Note that arranging in the corresponding transfer frame area means that the first pattern information is transmitted to the second pattern transfer control unit 14 from the host device via the interface unit 15 and then the first pattern coverage. The superimposed character Y may be arranged only in a location corresponding to the location where the superimposed character X is present, or a region where the first pattern is printed is determined in advance regardless of the number of characters of the first pattern and the presence or absence of a space, The superimposed character Y may be arranged in the transfer frame region corresponding to the region without any gap.

  Further, the set of superimposed characters Y may be classified and stored for each type of superimposed characters such as hiragana, katakana, kanji, and the like. In this case, after the first pattern information is transmitted to the second pattern transfer control unit 14 from the host device via the interface unit 15, the second pattern transfer control unit 14 performs each superimposition of the first pattern. The type of the character X is discriminated, the superimposed character Y is randomly extracted from the corresponding classification of the set of superimposed characters Y, and the region of the transfer frame corresponding to the region where the first pattern of the card base 22 is printed The second pattern may be generated by arranging them inside.

  In this example, since the ink missing traces corresponding to the superimposed character Y are arranged on the ink missing traces corresponding to the first pattern characters, the ink that has been transferred while the ink missing traces corresponding to the first pattern characters remain unchanged. It is even more difficult to read the first pattern, which is personal information, from the transferred ink ribbon 21 without remaining on the ribbon 21.

(Other examples)
In any of the character string generating means, a randomly generated character string is composed of a first area mainly composed of non-numeric character groups that are characters other than numbers, and a number group mainly composed of numbers. And the second region.

  For example, when the card substrate 22 to be handled is an identification card as shown in FIG. 6A, the personal information (first pattern) printed by the first heat source 4 is the name and address of the card substrate 22. In the upper left part, an identification number is arranged in the lower left part of the card base material 22, respectively.

  At this time, the second pattern transfer control unit 14 uses characters that are often used in names and addresses for the transfer frame area of the transferred ink ribbon 21 corresponding to the first area that is the upper left portion of the card base 22. Generate a string from a group. Note that character groups that are often used for names and addresses are, for example, character groups such as Kanji characters such as “Suzusa no Kawaga ...”, hiragana characters, katakana characters, and the like.

  Similarly, the second pattern transfer control unit 14 applies characters from the numbers “0 to 9” to the transfer frame area of the transferred ink ribbon 21 corresponding to the second area which is the lower left portion of the card substrate 22. Generate a column.

  In the case of (Example 1), the classification in the correspondence table may be “character groups that are often used for names and addresses” corresponding to non-numeric character groups and “numbers” corresponding to numeric groups. In the case of (Example 2), the classification in the set of superimposed characters Y may be set as “a character group that is often used for names and addresses” and “numbers”.

  If the arrangement of the first area and the second area is determined for each card base material 22 as in the identification card shown in FIG. 6A described above, the first area and the second area each time. After fixing, the second pattern transfer control unit 14 may generate a character string for the area of the transfer frame corresponding to each area.

  On the other hand, if the arrangement of the first area and the second area is different for each card base material 22, the second pattern transfer control unit 14 first acquires the information of the first pattern, and acquires the acquired first pattern. The type of superimposed character X (whether it is a character other than a number or a number) is determined for each character, the first region and the second region are divided, and the character string for the region of the transfer frame corresponding to each region Should be generated.

  In any case, the second pattern transfer control unit 14 transmits the generated character string to the second heat source 7b as the second pattern information.

  In this example, similar characters are arranged as superimposed characters Y in the transfer frame area corresponding to the first area composed of the non-numeric character group, and the transfer frame corresponding to the second area composed of the number group. Since the similar characters are arranged as the superimposed character Y in this area, it is difficult to analogize the first pattern, and it becomes even more difficult to read the first pattern which is personal information from the transferred ink ribbon 21.

  Furthermore, in any of the character string generation means, the second pattern font and font size are the same as the font used in the first pattern, thereby further increasing the difficulty in interpreting personal information.

  In any of the character string generation means, the main body that randomly generates the second pattern may be a host device (not shown) instead of the second pattern transfer control unit 14.

  According to the personal information printing machine 1 according to the second embodiment, a part of the ink remaining in the ink layer 24 of the transferred ink ribbon 21 is randomly generated, which is different from the first pattern. By melting with the second pattern of character strings, the ink missing trace of the transferred ink ribbon 21 becomes a camouflage pattern shape in which the first pattern and the second pattern overlap. Therefore, even if a third party obtains the transferred ink ribbon 21, it is difficult to read the first pattern, which is personal information, from the ink missing trace of the camouflage pattern in which the first pattern and the second pattern overlap. It becomes.

  Further, in the personal information printing machine 1 according to the second embodiment, depending on the adjustment of the amount of heat energy applied to the second heating element 8b, not only the outermost layer but also the inner layer thereof can be heated and pressed once. The transfer of the second pattern is also performed on the layer-transferred ink ribbon 21 at the same time. Therefore, the same effect as the case where a different second pattern is transferred a plurality of times to the transfer frame on the transferred ink ribbon 21 corresponding to the print frame for one card substrate is obtained. It becomes even more difficult to read the first pattern which is personal information from 21.

  Furthermore, if the character string generating means for generating the second pattern is devised as shown in (Example 1), (Example 2), and (Other Examples), the ink loss corresponding to the first pattern can be more reliably performed. Traces can be disturbed to make reading difficult.

  Here, with reference to FIG. 6, a state in which the ink missing trace is concealed by the personal information printing machine 1 according to the first and second embodiments will be described. FIG. 6A is a diagram showing the card substrate 22 to which the ink of the ink ribbon 21 has been transferred. FIG. 6B shows the transferred ink ribbon 21. FIG. 6C1 is a diagram illustrating the transferred ink ribbon 21 in which the ink missing trace is concealed by the personal information printing machine 1 according to the first embodiment. FIG. 6C2 is a diagram illustrating the transferred ink ribbon 21 in which the ink missing trace is concealed by the personal information printing machine 1 according to the second embodiment.

  FIG. 6A is a diagram showing the card substrate 22 onto which the ink in the ink layer 24 of the ink ribbon 21 has been transferred in the first pattern. On the card base material 22, for example, characters such as “ID card” may be printed in advance. In the frame area indicated by the dotted line, for example, a face photograph is printed before or after the personal information printing process. In this example, the first pattern is made up of character strings “Taro Higashiyama; Kawasaki City, Kanagawa Prefecture; 1-1, Yamamachi, Higashi-ku; 0441048042”.

  FIG. 6B is a diagram illustrating a case where the ink ribbon 21 after the ink is transferred to the card base material 22 in the first pattern is viewed from the base film 23 side. In the ink layer 24 of the transferred ink ribbon 21, a portion where the ink remains is black, and an ink omission mark that is a portion of the transferred ink is shown white. As described above, when the personal information concealment process is not performed by the personal information printing machine 1 according to the first or second embodiment, the card base material 22 is obtained simply by visually confirming the ink missing trace of the transferred ink ribbon 21. Personal information printed on can be easily identified.

  FIG. 6C1 shows a second pattern in which a part of the ink in the ink layer 24n of the nth transferred ink ribbon 21 is suitably set in advance in the personal information printing machine 1 according to the first embodiment. FIG. 10 is a diagram showing a case where the n-th transferred ink ribbon 21 after the n-1 transferred ink ribbon 21 is transferred to the base film 23n-1 is viewed from the base film 23n side.

  Specifically, in this example, the second pattern is composed of character strings “Nishimorieko Kanayama Toh; Nakayama Arofu Numatomi Town; Uramoto City 54321; 012345679”. In this way, the ink missing trace of the first pattern of the transferred ink ribbon 21 is difficult to read because the ink missing trace of the second pattern, which is a character string different from the first pattern, overlaps the ink missing trace of the first pattern. It has become.

  FIG. 6C2 shows a second pattern in which a part of the ink in the ink layer 24n of the nth transferred ink ribbon 21 is randomly generated in the personal information printing machine 1 according to the second embodiment. It is a figure which shows the case where the nth transferred ink ribbon 21 after being transferred to the base film 23n-1 of the n-1 transferred ink ribbon 21 is viewed from the base film 23n side.

  Specifically, in this example, the second pattern is made up of the character string “Natsuoka Yuyu; Sada Morihara Mori Nishie; Nishirokuoka Wen 4 4: 755547759”. This corresponds to each character of the first pattern “Taro Higashiyama; Kawasaki City, Kanagawa Prefecture; 1-1, Yamamachi, Higashi-ku; 0410448042”, for example, based on the correspondence table shown in FIG. Different characters are generated side by side. In this way, the ink missing trace of the first pattern of the transferred ink ribbon 21 is difficult to read because the ink missing trace of the second pattern, which is a character string different from the first pattern, overlaps the ink missing trace of the first pattern. It has become.

(Third embodiment)
Furthermore, with reference to FIG. 7 and FIG. 8, the mechanism of the slack removing process of the ink ribbon 21 of the personal information printing machine 1 according to the third embodiment will be described. The personal information printing machine 1 according to the third embodiment sets the length of the transferred ink ribbon 21 from the point A to the point B shown in FIGS. 1 and 4 to a predetermined length, thereby setting the first pattern. The ink missing trace and the second pattern ink missing trace can be controlled so as to overlap more reliably.

  FIG. 7 is a flowchart illustrating an example of a sag removing process of the ink ribbon 21 of the personal information printing machine 1 according to the third embodiment. FIG. 8A is a view showing the transferred ink ribbon 21. FIG. 8B1 is a diagram illustrating the transferred ink ribbon 21 in which the ink missing trace has not been concealed. FIG. 8B2 is a view showing the transferred ink ribbon 21 in which the ink missing trace is concealed by the personal information printing machine 1 according to the third embodiment.

  When processing a plurality of card base materials 22 in succession and performing personal information printing processing and personal information concealment processing, the first heat source 4 and the second heat source 7 are respectively heated and pressed, and retracted. And the state is repeated alternately.

  When the first heat source 4 finishes the printing process of personal information on one card base material 22, the card base material 22 to be processed next is in a predetermined position (point A in FIGS. 1 and 4). Until it is conveyed to the direction indicated by the arrow D1 in FIGS.

  In addition, when the second heat source 7 finishes the personal information concealment process for the transfer frame on the transferred ink ribbon 21 corresponding to the print frame for one card substrate, the second heat source 7 prints for one card substrate. Until the transfer frame corresponding to the frame, which is the next processing target on the transferred ink ribbon 21, is conveyed to a predetermined position (point B in FIGS. 1 and 4), the arrows in FIGS. Retreat in the direction indicated by D2.

  Here, the point A is a position where the first heating element 5 of the first heat source 4 is in contact with the ink ribbon 21. Point B is a position where the second heating element 8 of the second heat source 7 is in contact with the ink ribbon 21.

  By repeating the heating and pressing states of the first heat source 4 and the second heat source 7 and the retracted state, sagging occurs in the ink ribbon 21 along the plurality of guide rollers 9. If the ink ribbon 21 is slack, the first pattern may not be reliably printed by the first heat source 4. In order to eliminate this sagging, in the personal information printing machine 1 according to the third embodiment, the ink ribbon take-up control unit 11 rotates the take-up shaft 3 so that the length of the sagging ink ribbon 21 is a predetermined length. Take up the winding length with some α added.

  As shown in FIG. 7, the personal information printing machine 1 according to the third embodiment has a personal information printing process for one card base material and a transfer completed corresponding to a printing frame for one card base material. The personal information concealment process for the transfer frame on the ink ribbon 21 starts at the same timing and ends (step S101).

  At the same time as the personal information printing process and the personal information concealment process are completed, the first pattern transfer control unit 13 and the second pattern transfer control unit 14 move the first heat source 4 in the direction indicated by the arrow D1 to the second heat source. 7 is retracted in the direction indicated by the arrow D2 (step S102).

  Subsequently, the ink ribbon take-up control unit 11 performs a take-up process of taking up the take-up length which is the length + α of the slack ink ribbon 21 with the withdrawal of the first heat source 4 and the second heat source 7. This is performed (step S103). Further, the card base material transport control unit 12 transports one card base material 22 to be processed next to a printing position where the first heat source 4 and the roller 6 are installed (step S104).

  Thereafter, the first pattern transfer control unit 13 and the second pattern transfer control unit 14 return the first heat source 4 to the point A and the second heat source 7 to the point B, respectively (step S105).

  Again, the personal information printing process for the card substrate 22 that is the next processing target and the transfer frame that is the next processing target on the transferred ink ribbon 21 corresponding to the printing frame for one card base material. The personal information concealment process is started. The above is repeated continuously. The above is the slack removal processing of the ink ribbon 21.

  At this time, as shown in the print ink trace shown in FIG. 8A, the personal information printing process on the mth (m ≧ 1) card substrate 22 to be processed and the (m + 1) th card base Since the winding process (step S103) of the sagging process is executed while the printing process of the personal information on the material 22 is executed, the card base material of the transferred ink ribbon 21 between the point A and the point B is executed. A gap d1 is formed between the transfer frames on the transferred ink ribbon 21 corresponding to one print frame.

  Similarly, the personal information concealment process for the transfer frame on the transferred ink ribbon 21 corresponding to the print frame for one card substrate of the mi-th (1 ≦ i <m) card object to be processed While the personal information concealment process is executed for the transfer frame on the transferred ink ribbon 21 corresponding to the print frame for one (m−i + 1) th card base, the winding process of the slack removal process is performed. Since (Step S103) is executed, a gap d2 is formed between the transfer frames of the transferred ink ribbon 21 wound around the winding shaft 3 after the point B.

  Here, there is a difference between the gap d1 between the transfer frames on the transferred ink ribbon 21 and the gap d2 between the transfer frames of the personal information concealment process corresponding to the print frames of the personal information print process. Then, as shown in FIG. 8 (b1), a part of the ink missing in the personal information can be seen as it is. In this example, d1.noteq.d2, which corresponds to the first few characters of each line among the ink missing traces of the first pattern "Hanako Nishiura; Minato-ku, Tokyo; 1-1-1 Nishiura; 0561025963". Since the ink missing trace of “Nishiura; Tokyo: Nishiuracho; 0561” does not completely overlap with the ink missing trace of the second pattern, the transferred ink ribbon 21 is labeled “Nishiura; Tokyo: Nishiuracho; 0561”. Will remain in a readable state as a missing ink mark. That is, leakage of the confidential processing occurs.

  Therefore, in the personal information printing machine 1 of the third embodiment, the AB length, which is the length of the transferred ink ribbon 21 from the point A to the point B, corresponds to the printing frame for one card substrate. Printing by the first heat source 4, which is a length obtained by adding a winding length that is the length of the ink ribbon 21 wound by the winding processing of the slack processing to the printing frame length that is the length of the ribbon 21. A transport path for the ink ribbon 21 is formed along the plurality of guide rollers 9 so as to be an integral multiple of the pitch. As a result, the gap d1 between the transfer frames on the transferred ink ribbon 21 corresponding to the print frames of the personal information printing process matches the gap d2 between the transfer frames of the personal information concealment process.

  That is, according to the sagging removal process in the personal information printing machine 1 of the third embodiment, d1 = d2 as shown in FIG. 8 (b2), and the personal information (first pattern) is out of ink. The ink missing trace of the second pattern always overlaps the trace.

  As described above, the personal information printing machine 1 according to the third embodiment can be controlled so that the ink missing trace of the first pattern and the ink missing trace of the second pattern overlap more reliably. Leakage can be prevented. As a result, the confidentiality of personal information can be further enhanced.

(Fourth embodiment)
Furthermore, with reference to FIG. 9, the mechanism of the final winding process of the ink ribbon 21 of the personal information printing machine 1 which concerns on 4th Embodiment is demonstrated. FIG. 9 is a flowchart illustrating an example of the final winding process of the ink ribbon 21 of the personal information printing machine 1 according to the fourth embodiment. When the personal information printing machine 1 according to the fourth embodiment replaces the ink ribbon 21, the portion of the transferred ink ribbon 21 where the ink missing trace of the first pattern remains as it is, The second pattern can be controlled to be transferred reliably.

  When a predetermined number of personal information printing processes and personal information concealment processes are performed by continuously processing a plurality of card base materials 22, the personal information printing machine 1 according to the fourth embodiment is wound around the delivery shaft 2. The remaining amount of the ink ribbon 21 is reduced. When the remaining amount of the ink ribbon 21 decreases, the outer diameter of the roll body constituted by the ink ribbon 21 wound around the delivery shaft 2 decreases, and the transferred ink ribbon 21 wound around the winding shaft 3 becomes smaller. The outer diameter of the roll body constituted by is increased.

  For example, the ink ribbon take-up control unit 11 detects a marking (not shown) written in advance on the ink ribbon 21 with an optical sensor (not shown), or is configured by the ink ribbon 21 on the delivery shaft 2 side. The state of the outer diameter of the roll body to be detected is calculated from the rotation speed of the roll body detected by an encoder sensor (not shown), thereby detecting that the remaining amount of the ink ribbon 21 has become a predetermined value or less. To do.

  In this state, the subsequent personal information printing process is stopped, and a message prompting the operator to replace the ink ribbon 21 with a new one is displayed on the screen (not shown) of the identification card issuing machine. To do.

  At this time, the transferred ink ribbon 21 from the point A to the point B has not yet been subjected to the confidential processing of the personal information, so that the ink missing trace of the first pattern transferred by the first heat source 4 remains. It becomes the state of. For this reason, if the ink ribbon 21 is discarded in this state at the time of replacement, the personal information is removed from the ink missing trace remaining on the transferred ink ribbon 21 from the point A to the point B when the personal information printing process is stopped. Information becomes legible. In other words, the unprocessed secret process occurs.

  Therefore, when the ink ribbon 21 is reduced to a predetermined value, the personal information printing machine 1 according to the fourth embodiment applies to the transferred ink ribbon 21 from the point A to the point B before prompting the replacement of the ink ribbon 21. In the state where the printing process of the personal information by the first heat source 4 is stopped, only the confidential process of the personal information by the second heat source 7 is executed, and the transferred ink ribbon 21 is wound on the winding shaft 3. As a result, the second pattern ink missing trace is also formed on the first pattern ink missing trace on the transferred ink ribbon 21 from the point A to the point B.

  As shown in FIG. 9, when the ink ribbon take-up control unit 11 detects that the remaining amount of the ink ribbon 21 has become a predetermined value or less (step S201), the first pattern transfer control unit 13 performs the first pattern transfer control. The heat source 4 is retracted in the direction indicated by the arrow D1 (step S202). Further, the card base material transport control unit 12 stops the transport of the card base material 22 (step S203).

  On the other hand, the ink ribbon take-up control unit 11 performs a take-up process of winding up the AB length that is the length of the transferred ink ribbon 21 from the point A to the point B when the personal information printing process is stopped (Step S1). S204). During this time, the second pattern transfer control unit 14 controls the second heat source 7 and the second heating element 8 to transfer the transferred ink ribbon 21 from the point A to the point B when the personal information printing process is stopped. A second pattern of ink missing trace is formed (step S205).

  The above is the final winding process of the ink ribbon 21.

  As described above, in the personal information printing machine 1 according to the fourth embodiment, control is performed so as to execute the personal information concealment process on ink traces of all printed personal information (first pattern). It is possible to prevent the confidential processing from being left behind. As a result, the confidentiality of personal information can be further enhanced.

  According to the personal information printing machine 1 of the first to fourth embodiments described above, it is possible to effectively prevent the personal information from being specified by using the ink missing trace of the transferred ink ribbon 21 as a camouflage pattern. That is, the personal information printed on the card substrate 22 is more difficult to read from the ink missing trace of the transferred ink ribbon 21 more reliably.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Personal information printing machine 2 ... Sending shaft 3 ... Winding shaft 4 ... 1st heat source 5 ... 1st heat generating body 6 ... Roller 7a, 7b ... 2nd heat source 8a, 8b ... 2nd heat generating body 9 ... Guide roller 10 ... Control unit 21 ... Ink ribbon, transferred ink ribbon 22 ... Card substrate 23 (23n, 23n-1 etc.) ... Base film 24 (24n, 24n-1 etc.) ... Ink layer

Claims (7)

A personal information printing machine for transferring ink of the ink layer to a card substrate using an ink ribbon having a base film and an ink layer,
A delivery shaft for feeding out the ink ribbon;
A first heat source provided on the downstream side of the delivery shaft so as to be retractable from the base film side of the ink ribbon, and by heating and pressing the ink ribbon, the ink in the ink layer of the ink ribbon is personalized. A first heat source having a first heating element that is transferred to the card substrate in a first pattern that is a character string of information;
A roller that faces the first heat source and is provided on the ink layer side of the ink ribbon, and conveys the card substrate;
A take-up shaft that is provided on the downstream side of the first heat source and the roller and winds up the transferred ink ribbon so that the base film is located on the outside;
A second heat source provided so as to be retractable from an nth transferred ink ribbon (an integer of n ≧ 2) in an outermost layer among the transferred ink ribbons wound around the winding unit, By heating and pressing the n-th transferred ink ribbon, the ink in the ink layer of the n-th transferred ink ribbon is changed to the n-th pattern with a second pattern which is a character string different from the first pattern. A second heat source having a second heating element to be transferred to the base film of the (n-1) -th transferred ink ribbon adjacent to the inside of the transferred ink ribbon;
A personal information printing machine. The second pattern is:
A randomly generated string,
The personal information printing machine according to claim 1. The second pattern is:
A first region composed of a number character group and a second region composed of a number group;
When the second pattern is randomly generated,
In the first area, a character string composed of a group of numeric characters is randomly generated,
In the second area, a character string composed of a number group is randomly generated.
The personal information printing machine according to claim 2. A storage unit for storing a correspondence table in which characters assigned as characters of the second pattern for each character of the first pattern are preset;
When the second pattern is randomly generated, the correspondence table is referred to,
The characters assigned to the characters of the first pattern are generated in order.
The personal information printing machine according to claim 2 or claim 3. Furthermore, due to the heat from the second heating element,
The ink in the ink layer of at least one transferred ink ribbon among the (n + 1-k) transferred ink ribbons (2 ≦ k <n) in the kth layer from the outermost layer is the second pattern, Transferred to the base film of the n-k transferred ink ribbon adjacent to the inside of the n + 1-k transferred ink ribbon,
The personal information printing machine according to any one of claims 1 to 4. Further, the length of the transferred ink ribbon from the position where the ink ribbon is in contact with the first heating element to the position where the transferred ink ribbon is in contact with the second heating element is the length of the first heat source. Is an integer multiple of the printing pitch by
The personal information printing machine according to any one of claims 1 to 5. Further, the winding shaft is
After the transfer of the first pattern is stopped because the remaining amount of the ink ribbon on the delivery shaft has become a predetermined value or less, the transferred ink ribbon is moved from the position where the ink ribbon contacts the first heating element. Winding the transferred ink ribbon by the length of the transferred ink ribbon up to a position in contact with the second heating element;
The personal information printing machine according to any one of claims 1 to 6.

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