JP2008055731A - Printing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a printing device which can enhance the flexibility of a transfer medium irrespective of the temperature in the device, and can excellently transfer an intermediate transfer ribbon and the transfer medium in a short time period during transfer of an image. <P>SOLUTION: The printing device has the intermediate transfer ribbon 28 which travels in a predetermined direction by being wound by a winding shaft. The intermediate transfer ribbon 28 has an image receiving layer 28c on which an image is printed by a printing section, on a substrate film 28a. The image receiving layer 28c on which the image is printed is heated when passing through a heat roller 26, and transferred to a passbook T as the transfer medium. After the transfer, the image receiving layer 28c is sufficiently cooled by a cooling device 100 on an upstream side of a separation shaft 33, and thereafter it is separated from the substrate film 28a. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a printing apparatus that transfers an image printed on an intermediate transfer ribbon to a transfer target.

  In recent years, bank cards and passbooks have ICs (Integrated Circuits, hereinafter referred to as ICs) embedded therein. By embedding ICs or the like, unevenness generated on the surface of passbooks is printed on the surface. In some cases, good printing was not possible. In addition, when performing high-quality printing on a passbook, fine irregularities due to paper fibers of the passbook have caused a reduction in image quality.

Therefore, there is a demand for printing technology that is not affected by the surface condition of cards and passbooks.
As one of the printing techniques, one using an intermediate transfer ribbon is known.

  A printing apparatus used in this printing technique includes a printing unit and a transfer unit, the printing unit includes a thermal head and an ink ribbon, and the transfer unit includes a heat roller and a backup roller.

  The ink ribbon and the intermediate transfer ribbon are sent to the printing unit in a state of being overlapped, and the thermal head generates heat in accordance with the image information in the printing unit and the ink on the ink ribbon is melted, whereby an image is formed on the surface of the intermediate transfer ribbon. Is formed. The intermediate transfer ribbon on which the image is formed is overlapped with the transfer target and is fed between the heat roller and the backup roller of the transfer unit. From this state, the heat roller is rotated to pressurize and heat the intermediate transfer ribbon and the transfer medium between the backup roller and the heat roller, and the image is transferred onto the surface of the transfer object.

  By the way, the intermediate transfer ribbon includes a base film, a release layer applied on the base film, and an image receiving layer applied on the release layer. When the image is transferred, the image receiving layer is peeled off so that the image is transferred together with the image receiving layer to the transfer target.

  However, when the intermediate transfer ribbon that is pressed and heated between the heat roller and the backup roller at the time of image transfer is peeled off from the transfer target, the image receiving layer cannot be peeled cleanly if it is hotter than a predetermined temperature, and it cannot be transferred cleanly. There was a problem.

In order to improve this, the intermediate transfer ribbon that has passed through the transfer portion and the transfer target are temporarily held in close contact with each other, and the intermediate transfer ribbon and the transfer target that are held in the hold portion and the temperature is lowered. A printing apparatus having a peeling mechanism for peeling a body is known (for example, see Patent Document 1).

JP 2003-103811 A

However, even if the temperature in the machine at the time of peeling can be lowered sufficiently with the conventional apparatus, if the temperature of the transfer target before transfer is excessively low, the transfer section will give sufficient heat energy necessary for transfer. However, there was a case where transfer failure occurred, but there was no means for dealing with it. Moreover, since the method of lowering the temperature of the intermediate transfer ribbon at the time of peeling is a method of leaving for a certain period of time, it takes a long time for the temperature to drop sufficiently.

The present invention has been made in view of the above points, and an object of the present invention is to provide a printing apparatus that can transfer the intermediate transfer ribbon and the transfer object well in a short time during image transfer without being affected by the temperature in the printing apparatus. The purpose is to do.

In order to achieve the above object, according to the first aspect of the present invention, a printing apparatus prints an image on an intermediate transfer ribbon, and the intermediate transfer ribbon printed by the printing unit is used as a transfer target. A transfer unit that transfers the image to the transfer position of the transfer target by heating the intermediate transfer ribbon in a superimposed manner, a peeling mechanism that transfers the intermediate transfer ribbon and the transfer target after transfer at the transfer unit, and the transfer unit A transfer body cooling section provided between the transfer mechanism and the peeling mechanism, and a forced cooling device for cooling the intermediate transfer ribbon provided in the transfer body cooling section and heated by the transfer section. To do.

According to a second aspect of the present invention, the printing apparatus includes a printing unit that prints an image on the intermediate transfer ribbon,
The intermediate transfer ribbon printed by the printing unit is superimposed on the transfer target member, and the intermediate transfer ribbon is heated by the heating unit to transfer the image to the transfer position of the transfer target member. A second detection unit that is provided in the vicinity of the carry-in path to the transfer unit and detects the temperature in the apparatus, and the intermediate transfer ribbon and the transfer target when passing through the heating unit based on the detection result by the second detection unit And a controller for determining a body conveyance speed.

ADVANTAGE OF THE INVENTION According to this invention, the printing apparatus which can transfer an intermediate transfer ribbon and a to-be-transferred material favorably in a short time at the time of image transfer can be provided.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a passbook printing system 10 (hereinafter simply referred to as a system 10) in which a printing device 20 that prints information such as a name and address of a holder and a photograph is incorporated in a passbook T as a transfer target. is there.

  The system 10 accommodates a plurality of closed passbooks T in a stacked state, a passbook take-in portion 12 that takes in the system 10 one by one, and a conveyance that extends from the passbook take-in portion 12 to the right in FIG. It has a path 11. On the conveyance path 11, a plurality of medium conveyance roller pairs 13a, 13b, 13c, 13d, and 13e (conveying mechanism) for conveying the passbook T taken from the passbook taking-in part 12 in both forward and reverse directions are arranged. ing. In the following description, the right direction in FIG. 1 from the passbook take-in unit 12 toward the printing apparatus 20 described later is the forward direction, and the opposite direction is the reverse direction.

  The system 10 includes a page turning unit 16 having a page detection sensor 14 and a page turning mechanism 15 for detecting the opened page of the passbook T along the conveyance path 11, and a predetermined page is opened by the page turning unit 16. The image forming unit includes a printing device 20 that prints predetermined information on the passbook T and the passbook discharge unit that discharges the passbook T on which information is printed on a desired page.

  The page detection sensor 14 detects an image of the opened page of the bankbook T and sends the image data to a control unit described later. Based on this image data, the control unit described later recognizes the page in which the bankbook T is opened from a bar code (not shown) assigned to a predetermined position of the page.

  The page turning mechanism 15 includes a backup plate 17 disposed below the conveyance path 11, a turning roller 18 disposed above the conveyance path 11, and a fulcrum 19 a provided at the center of oscillation of the backup plate 17. It has a swing shaft 19 that is swingable at the center and has a turning roller 18 rotatably attached to the tip of the swing. When the swing shaft 19 is swung by a motor (not shown) at a position indicated by a broken line in FIG. 1, the turning roller 18 is swung and the backup plate 17 is swung in conjunction therewith. The turning roller 18 can be rotated clockwise or counterclockwise by a motor (not shown).

  When turning the page of the passbook T by the page turning mechanism 15, first, the passbook T is transported to a predetermined position in the page turning mechanism 15 and stopped. For example, as shown by a broken line in FIG. Swinging leftward, the turning roller 18 is pressed onto the passbook T. At this time, as the swing shaft 19 swings, the backup plate 17 is also swung, and the back surface of the bankbook T is pushed upward by the tilted backup plate 17.

  In this state, the turning roller 18 is rotated by being pressed against the page on the upstream side in the conveyance direction of the passbook T, and the turning operation of the uppermost page of the passbook T is started. By this turning operation, the page swells up, and when it is turned to some extent, the turning roller 18 is stopped. Further, after returning the swing shaft 19 from this state to the position indicated by the solid line in the figure, the turning roller 18 is rotated again, and the page is completely turned on the turning roller 18.

  Then, the bankbook T is conveyed in the reverse direction, the page turned up on the turning roller 18 is completely opened, the image data of the opened page is detected via the page detection sensor 14, and the bar code is read and opened. Check the page. Thereby, the desired page of the passbook T can be automatically opened and the opened page can be recognized. The passbook T in which the desired page is opened in this way is conveyed to the printing apparatus 20 described later, and predetermined information is printed on the desired page.

  In addition, by operating the page turning mechanism 15 in the reverse direction to the above-described operation, the page of the bankbook T can also be turned in the reverse direction.

  FIG. 2 is an enlarged configuration diagram illustrating the printing apparatus 20.

  The printing apparatus 20 includes a printing unit 3 and a transfer / peeling unit 4 provided below the printing unit 3.

  The printing unit 3 includes a thermal head 5, and a platen roller 6 is disposed opposite to the thermal head 5. Between the thermal head 5 and the platen roller 6, for example, an ink ribbon 7 coated with molten ink of each color Y (yellow), M (magenta), C (cyan), and Bk (black) is interposed. One end of the ink ribbon 7 is wound around the delivery shaft 8, and the other end is wound around the winding shaft 9.

  The ink ribbon 7 may be a ribbon of only monochromatic ink, a fluorescent pigment ink that emits light by ultraviolet rays, a metal thin film (aluminum vapor deposition) layer for printing having a glossy surface, or a hologram layer for printing. It may be a ribbon material having functions such as.

  On the other hand, the transfer unit 4A and the peeling unit 4B include a heat roller 26 as the transfer unit 4A, and a backup roller 27 is positioned below the heat roller 26. The heat roller 26 has a heater 26C inside, and a cut surface 26A having a shape in which a part of the outer periphery thereof is cut off is formed. The length of the remaining curved outer peripheral portion 26B of the heat roller 26 is substantially the same as the length of the image transfer area along the conveyance direction of the passbook T. The transfer position refers to an area in the passbook T where an image can be formed.

  An intermediate transfer ribbon 28 as an intermediate transfer ribbon is interposed between the heat roller 26 and the backup roller 27. The intermediate transfer ribbon 28 has a long base film 28a made of a polyester material, and an image receiving layer made of a polyester resin is provided on the surface of the base film 28a with a release layer 28b made of a phenoxy resin. 28c is applied in order. An image is printed on the image receiving layer via the printing unit 3 described above. The transfer portion of the image receiving layer is designed to transfer the printed image to a predetermined page of the passbook T, so that the image is peeled off from the base film and transferred to the passbook T together with the image.

  The intermediate transfer ribbon 28 is provided with functional layers such as a hologram layer and a fluorescent coloring layer that emits light by ultraviolet rays, so that these functional layers can also be transferred based on image transfer to the passbook T.

  One end side of the intermediate transfer ribbon 28 is wound around a feeding shaft 30 provided near the printing unit 3, and the other end side is wound around a winding shaft 31 provided near the transfer / peeling unit 4. The intermediate portion of the intermediate transfer ribbon 28 is stretched over the platen roller 6, the guide shafts 32 a to 32 b, the peeling shaft 33 (peeling member), and the ribbon tensioner 34. That is, the intermediate transfer ribbon 28 is given a predetermined tension by the ribbon tensioner 34 that is constantly urged in the direction of the arrow in FIG. 2, and in the printing unit 3, between the outer periphery of the platen roller 6 and the ink ribbon 7. Intervened. Further, the intermediate transfer ribbon 28 extends in parallel with a space above the transport path 11 between the two pairs of medium transport rollers 13d and 13e.

  The heat roller 26 faces the cut surface 26A in parallel with the transport path 11 via the intermediate transfer ribbon 28 during printing standby (posture shown in FIG. 2). Thereby, a gap is formed between the heat roller 26 and the backup roller 27. At this time, the intermediate transfer ribbon 28 is disposed at a position that does not contact the heat roller 26 and the backup roller 27 and does not contact the surface of the bankbook T that enters at the start of printing.

  A thermistor 38a (second detection means) for detecting the temperature in the apparatus at that position is disposed on the left side in FIG. 2 from the heat roller 26, that is, in the vicinity of the conveyance path to the transfer portion of the passbook T. .

  The temperature information detected by the thermistor 38a is sent to a control unit to be described later, and the rotation speed of the heat roller 26, that is, the conveyance speed of the intermediate transfer ribbon 28 and the bankbook T is controlled.

  Further, the intermediate transfer ribbon 28 and the passbook T that have passed through the transfer portion are overlapped between the downstream side of the transfer direction of the passbook T of the heat roller 26 that is the transfer portion and the upstream side of the release shaft 33 that is the release portion. In this state, there is provided a transfer body cooling unit 111 that temporarily stops the conveyance and holds it. Further, a thermistor 38b (first detection means) for detecting the temperature in the vicinity of the transfer body cooling unit is provided above the transfer body cooling unit 111, and the detected temperature information is sent to a control unit described later. The temporary stop time of the intermediate transfer ribbon 28 and the passbook T in the transfer-receiving cooling unit 111 is controlled.

  A cooling fan that forcibly cools the intermediate transfer ribbon 28 by forcibly sending air to the transfer position of the intermediate transfer ribbon 28 and the passbook T temporarily stopped by the transfer body cooling unit 111 above the transfer body cooling unit 111. 100 (forced cooling device) is provided. In addition, a duct portion 101 is provided between the cooling fan 100 and the transfer body cooling portion 111 to intensively guide the wind generated by the cooling fan 100 to the transfer body cooling portion 111. By providing the duct portion 101, the transfer position of the intermediate transfer ribbon 28 and the passbook T temporarily stopped by the transfer body cooling portion 111 can be intensively cooled, and the image receiving layer 28C of the intermediate transfer ribbon 28 in a molten state can be provided. There is also an effect that dust does not easily enter and does not adversely affect the printed image.

  The image receiving layer of the intermediate transfer ribbon after the transfer can be lowered from the cooling fan 100 to a predetermined temperature.

  As shown in FIG. 3, a pulse motor 43 is connected to one end side of the winding shaft 31 of the intermediate transfer ribbon 28 via a torque limiter 40 and two gears 41 and 42 engaged with each other. A rotary encoder 45 for detecting the actual rotation speed of the take-up shaft 31 is attached to the other end side of the take-up shaft 31 via a coupling 44.

  The pulse motor 43 applies an appropriate tension to the intermediate transfer ribbon 28 shown in FIG. 2, so that the travel speed of the intermediate transfer ribbon 28 is the travel speed of the ink ribbon 7 of the printing unit 3 and the passbook T that is transported through the transport path 11. The take-up shaft 31 is to be rotated at a speed that is faster than the conveying speed. However, the intermediate transfer ribbon 28 travels at the same speed as the transfer speed of the bankbook T by the action of the torque limiter 40. On the other hand, when the intermediate transfer ribbon 28 is run at a constant speed, the rotation speed of the winding shaft 31 is changed according to the winding diameter of the intermediate transfer ribbon 28 wound around the winding shaft 31. In other words, the diameter of the intermediate transfer ribbon 28 wound around the winding shaft 31 can be measured by detecting the actual rotational speed of the winding shaft 31 with the rotary encoder 45.

  FIG. 4 is a block diagram of a control system that controls the operation of the system 10 including the printing apparatus 20 configured as described above.

  The control unit 50 of the system 10 is connected to the components of the passbook take-in unit 12 and the page turning unit 16 described above. The control unit 50 is connected to a pulse motor 51 for rotating a plurality of medium transport roller pairs 13d and 13e for transporting the bankbook T through the transport path 11 in both forward and reverse directions.

  Further, the control unit 50 includes a pulse motor 52 for rotating the winding shaft 9 for winding the ink ribbon 7 of the printing unit 3 and a feeding shaft 30 for feeding the intermediate transfer ribbon 28 in a winding direction opposite to the feeding direction. A pulse motor 53 for rotating and a pulse motor 43 for rotating the winding shaft 31 for winding the intermediate transfer ribbon 28 are connected.

  Further, the control unit 50 includes a thermal head 5 of the printing unit 3, a pulse motor 55 for rotating the heat roller 26, a rotary encoder 45 attached to the winding shaft 31 of the intermediate transfer ribbon 28, and a diagram for separation. A peeling mechanism 56 as shown in FIG. 6 and the thermistors 38a and 38b are connected.

  Further, the control unit 50 includes a speed table in which the temperature detected by the thermistor 38a is associated with the rotational speed of the heat roller 26, and the temperature detected by the thermistor 38b as shown in FIG. A storage unit 500 that stores a waiting time table that associates the temporary stop time (waiting time) at 111 is connected.

  The pulse motor 43 for rotating the winding shaft 31 of the intermediate transfer ribbon 28 functions as a traveling mechanism together with the winding shaft 31. The pulse motor 43 functions as a peeling mechanism together with the peeling shaft 33, the winding shaft 31, the plurality of medium transport roller pairs 13d and 13e, and the pulse motor 51 described above.

  Next, the operation of the printing apparatus 20 will be described mainly with reference to FIG. 2, FIG. 5, FIG. 6, and FIG.

  In a standby state before operation, the heat roller 26 is set so that the cut surface 26 </ b> A of the heat roller 26 faces the conveyance path 11. The heat roller 26 is heated to a predetermined temperature (150 ° C. in the present embodiment) by energizing the heater 26C.

  In this state, the ink ribbon 7 and the intermediate transfer ribbon 28 are pressed against the platen roller 6 by the thermal head 5, the platen roller 6 is rotated at a predetermined speed, and the intermediate transfer ribbon 28 and the ink ribbon 7 are run. An image is printed on the image receiving layer 28 c of the intermediate transfer ribbon 28 by the head 5. At the same time, the winding shaft 9 of the ink ribbon 7 and the winding shaft 31 of the intermediate transfer ribbon 28 are rotated to wind up the ink ribbon 7 and the intermediate transfer ribbon 28 conveyed by the platen roller 6, respectively. The printed image is conveyed to a transfer region between the heat roller 26 and the backup roller 27 by the travel of the intermediate transfer ribbon 28 and stopped at a predetermined transfer portion.

  At this time, the winding shaft 31 of the intermediate transfer ribbon 28 is rotated at a rotational speed that is faster than the traveling speed by the platen roller 6, but in reality, at the traveling speed by the platen roller 6 by the action of the torque limiter 40. Rotate. At this time, the controller 50 detects the actual rotation speed of the winding shaft 31 of the intermediate transfer ribbon 28 via the rotary encoder 45, and the winding diameter of the intermediate transfer ribbon 28 wound on the winding shaft 31. Is detected.

  On the other hand, the bankbook T on which a predetermined page is opened is transported through the transport path 11 and is stopped in a state where the leading edge of the page forming the image is disposed directly below the heat roller 26. The control unit 50 detects the temperature in the apparatus with a thermistor 38a provided in the vicinity of the transfer path to the transfer unit, and reads an appropriate rotation speed from the stored speed table of FIG. The intermediate transfer ribbon 28 and the passbook T are conveyed by rotating the heat roller 26 and the medium conveying roller 13d in accordance with the read speed. At this time, the winding shaft 31 is rotated at a rotational speed based on the previously detected winding diameter, and the intermediate transfer ribbon 28 is driven at the same speed as the pass rate of the bankbook T.

  As a result, the intermediate transfer ribbon 28 is heated and pressed against the passbook T, and the image receiving layer 28c portion on which the image is printed, the transfer portion 280 of FIG. After the image transfer, the rotation of the winding shaft 31 is stopped and the intermediate transfer ribbon 28 is stopped. At the same time, the rotation of the medium transport roller pair 13e is also stopped and the bankbook T is stopped. In this state, the passbook T and the intermediate transfer ribbon 28 are in close contact with each other. The heat roller 26 is rotated and stopped in a posture in which the cut surface 26 </ b> A faces the transport path 11 in preparation for the next processing. Therefore, the transfer site 280 transferred to the passbook T is stopped on the transferred object cooling unit 111 upstream of the peeling shaft 33 in the transport direction.

  At this time, the control unit detects the temperature in the vicinity of the transfer path to the transfer unit by the thermistor 38b, reads the detected waiting time from the waiting time table stored in the storage unit 500, and reads the intermediate transfer ribbon and The transfer body cooling unit 111 is stopped for a predetermined time while the bankbook T is kept in close contact. In the meantime, the intermediate transfer ribbon can be made below the temperature at which stable peeling can be performed by the cooling fan 100.

  Then, during the time read from the waiting time table of the storage unit 500, the travel of the passbook T and the intermediate transfer ribbon 28 is resumed on the condition that the intermediate transfer ribbon 28 has been cooled. At this time, the winding shaft 31 is rotated at a rotation speed based on the winding diameter of the intermediate transfer ribbon, and the traveling speed of the intermediate transfer ribbon 28 is made the same as the conveyance speed of the bankbook T.

  The intermediate transfer ribbon 28 is oriented in an angular direction different from the conveyance direction of the passbook T at the position of the peeling shaft 33. As a result, the intermediate transfer ribbon 28 and the passbook T are separated, and the transfer portion 280 including the image transferred to the passbook T and the base film 28a of the intermediate transfer ribbon are peeled off.

  After peeling, as necessary, the delivery shaft 30 of the intermediate transfer ribbon 28 is rotated in the direction of winding the ribbon (reverse direction), and the intermediate transfer ribbon 28 is wound up by a predetermined distance. That is, since the intermediate transfer ribbon 28 separated from the passbook T by the peeling shaft 33 can be used at a portion upstream from the portion where the image receiving layer 28c is removed from the base film 28a due to peeling, this portion can be used as the thermal head 5. The intermediate transfer ribbon 28 is wound up to the facing position.

  According to the embodiment as described above, the intermediate transfer ribbon 28 is sufficiently cooled by the cooling fan 100 installed on the transferred object cooling unit 111 before the intermediate transfer ribbon 28 and the passbook T are peeled off, and then peeled off. I can do it. By forcibly cooling with the cooling fan 100, the intermediate transfer ribbon 28 can be satisfactorily peeled in a shorter time, and problems such as the passbook T adhered to the transfer site 280 being pulled by the intermediate transfer ribbon 28 can be prevented. In addition, since the intermediate transfer ribbon 28 and the bankbook T can be peeled off satisfactorily, the degree of freedom in selecting the material of the bankbook T can be increased, and transfer can also be performed on paper that is relatively weak.

  The cooling fan 100 is always driven at a constant speed, and depending on the temperature, a power saving operation, an operation with increased wind power, and an operation by manual control to cope with a change of the transfer medium can be performed.

  In the case of a cooling device, not only a cooling fan but also an application by cooling such as lowering the temperature in the apparatus at the transferred object cooling unit by an electronic cooling device, a water cooling device, or a cooling device is possible.

  FIG. 8 is a configuration diagram when a cooling sheet is used. A sheet 100a containing a gel having a cooling effect or the like in the lower part is placed on the upper conveyance path guide 102 and cooled. FIG. 9 shows a case where a water cooling device is used as the forced cooling device. Cooling is performed by passing the coolant from the pump 100b1 through the water pipe 100b2. FIG. 10 is a view when an electronic cooling device using the Peltier effect is installed and used as the forced cooling device. An electronic cooling device 100c is installed on the conveyance path guide at the upper part of the transfer body cooling unit to perform cooling. The installation position of the cooling device can be not only upward but also downward or sideways, and a plurality of cooling methods can be used simultaneously.

  Furthermore, in this embodiment, the thermistor 38a detects the temperature in the apparatus immediately before the transfer and sets an appropriate conveyance speed, and can control such that the heat roller and the medium conveyance roller 13 are rotated at a lower speed as the temperature is lower. Even if the temperature in the apparatus changes, it is possible to prevent transfer omission in which the image once transferred to the printing medium side returns to the intermediate transfer film side. Further, by changing the setting of the control unit, the types of medium materials that can be printed by one printing apparatus are increased.

  Moreover, by applying not only the temperature detecting means such as the thermistor of the embodiment but also means for detecting the humidity, a more accurate speed can be derived.

  It is also possible to adapt to a card or the like by changing the setting of the speed table.

In addition, the present embodiment can of course be modified in various ways within the scope of the gist thereof.

1 is a schematic diagram showing a bankbook printing system including a printing apparatus according to an embodiment of the present invention. Schematic which shows the structure of the printing apparatus integrated in the system of FIG. The figure which shows schematically the drive structure of the winding shaft of the intermediate transfer ribbon incorporated in the printing apparatus of FIG. The block diagram which shows the control system which controls operation | movement of the system of FIG. The figure for demonstrating the transfer and peeling operation | movement by the printing apparatus of FIG. The speed table figure which shows the relationship between the temperature detected by the 2nd detection means, and the speed of a heat roller. The waiting time table figure which shows the relationship between the temperature detected by the 1st detection means, and waiting time. The figure which shows the medium cooling part which uses the cooling sheet The figure which shows the medium cooling part which uses the water cooling device Fig. 1 shows a medium cooling unit using an electronic cooling device

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 ... Printing part, 4 ... Transfer / peeling part, 26 ... Heat roller, 38a ... Thermistor (second detection means), 38b ... Thermistor (first detection means), 50 ... Control part, 100 ... Cooling fan, 101 ... Duct 111: Transfer object cooling unit, 500: Storage unit

Claims (7)

A printing section for printing an image on the intermediate transfer ribbon;
A transfer unit that transfers the image to a transfer position of the transfer target by superimposing the intermediate transfer ribbon printed by the printing unit on the transfer target and heating the intermediate transfer ribbon;
A peeling mechanism that peels off the intermediate transfer ribbon and the transfer object after transfer at the transfer part, and a transfer object cooling part provided between the transfer part and the peeling mechanism;
And a forced cooling device that cools the intermediate transfer ribbon that is provided in the transfer body cooling unit and is heated by the transfer unit.
A first detecting means provided in the transferred body cooling section for detecting a temperature in the vicinity of the transferred body cooling section;
The printing apparatus according to claim 1, wherein a stay time of the transfer body cooling unit at a transfer position of the transfer body is determined based on a result detected by the first detection unit.
The printing apparatus according to claim 1, wherein the cooling device is a cooling fan that blows air to the intermediate transfer ribbon.
Provided between the cooling fan and the transfer body cooling unit,
The printing apparatus according to claim 3, further comprising a duct portion that guides the wind generated by the cooling fan to the transferred body cooling portion.
The control unit includes a storage unit that stores speed information related to a passing speed of the transfer target of the transfer target cooling unit corresponding to a temperature in the vicinity of the transfer target cooling unit,
Read speed information corresponding to the temperature in the apparatus from the storage unit based on the detection result of the detection means,
5. The printing apparatus according to claim 1, wherein an operation item relating to a speed of the transfer target is determined based on the speed information.
A printing section for printing an image on the intermediate transfer ribbon;
A transfer unit that transfers the image to a transfer position of the transfer target by superimposing the intermediate transfer ribbon printed by the printing unit on the transfer target and heating the intermediate transfer ribbon by a heating unit;
A second detection means provided in the vicinity of a carry-in path of the transfer object to the transfer unit, and detecting a temperature in the apparatus;
Based on the detection result by the second detection means, a control unit for determining the conveyance speed of the intermediate transfer ribbon and the transfer medium when passing through the heating unit;
A printing apparatus comprising:
The control unit has a storage unit that stores information on the speed of passage of the transfer target in the transfer unit corresponding to the temperature in the apparatus in the vicinity of the transfer path to the transfer unit,
Based on the detection result of the second detection means, the speed information corresponding to the temperature in the apparatus is read from the storage unit,
The printing apparatus according to claim 6, wherein a transfer speed of the transfer medium is determined based on the speed information.

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