KR940007483B1 - Paper and ribbon feeding device in cup - Google Patents

Abstract

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Description

Photo paper and ribbon feeder for color video printers

1 is a schematic configuration diagram schematically illustrating a transmission structure of a photo paper and a ribbon transfer device for a color video printer according to the prior art;

2 is a schematic configuration diagram for explaining the printing operation of the conventional conveying apparatus shown in FIG. 1;

3 is a schematic configuration diagram schematically illustrating a transmission structure of a photo paper and a ribbon transfer device of a color video printer according to the present invention;

4 is a schematic perspective view showing a specific structure of a gear portion in FIG. 3;

FIG. 5 is an enlarged perspective view showing the power converter in FIG. 3;

6A and 6B are schematic diagrams showing an operating state at the time of printing supply discharge of the power converter of FIG. 4 and an operating state at the time of ribbon transfer.

* Explanation of symbols for main parts of the drawings

5, 5 ': Supply gear part 10: Ribbon gear

12: ribbon box 16: pinch roller

17: fixed roller 18: photo paper

19: Photo paper box 21: Ribbon

24: movable gear 25: connecting bar

26: supply auxiliary gear 27: ribbon supply gear

30: reversible motor 32: power change unit

33: Worm Gear

The present invention relates to a photo paper and a ribbon conveying apparatus of a color video printer, and in particular, by adopting a power converter to the motor of the color video printer, a simple structure capable of feeding and feeding the photo paper to a single motor and conveying the ribbon. The present invention relates to a photo paper and a ribbon transfer device of a color video printer.

The color video printer is a device for acquiring color images by separately supplying photo paper on which a color image is to be printed and a ribbon to transfer the image to the photo paper by heating. The printer apparatus includes a transfer device for supplying and retrieving photo paper and ribbon. It has an important basic configuration. The prior art embodiment of the transfer apparatus as described above has the configuration as shown in FIGS. 1 and 2 of the accompanying drawings.

1 and 2 are schematic configuration diagrams schematically illustrating the transmission structure and printing operation of the photo paper and the ribbon transfer device of the color video printer according to the prior art. 18. Photo paper feeding motor A (1) for generating power for feeding and discharging, worms (3) and worm wheels (4) for transmitting power from this motor A (1); Photo paper supply gears for supplying the photo paper 18, i.e., the drive gear 5 and the driven gear 5 'for receiving the power from the worm wheel 4 and rotating, are mounted on the substrate 11, have. At this time, the photo paper supply gears 5 and 5 'are connected to each other using the belt 6 so that they rotate in the same direction, and the belt 6 contacts the photo paper 18 of the photo paper box 19. As the belt 6 rotates, the photo paper 18 is drawn out by the contact movement force. In addition, the conveying apparatus is equipped with a ribbon driving motor B (2) for supplying the ribbon 21 to the other side of the photo paper feeding medium on which the photo paper feed gears (5, 5 ') are located on the substrate (11). The motor B 2 transmits power to the ribbon subgear 9 through the worm 3 ', and thus the ribbon 21 is transferred by the rotation of the ribbon subgear 9. In addition, the transfer apparatus is provided with a photo paper box 19 for receiving the photo paper 18 and a discharge box 20 for collecting the photo paper 18, and applying heat to the ribbon 21 to print the photo paper 18. A TPH 14 for transferring a color image to the image, a platen roller 15 for applying a compressive force to the THP 14, the ribbon 21 and the photo paper 18, and a photo paper 18 A photo paper guide 23 is provided for guiding the discharge.

In the drawing, reference numeral 12 denotes a photo paper discharge control gear which prevents the photo paper 18 from being discharged one or more sheets, 13 is a ribbon box, and 22 is an auxiliary roller for discharge.

The conventional conveying apparatus having such a configuration is operated as follows. That is, as shown in FIGS. 1 and 2, the photo paper 18 accommodated in the photo paper box 19 is rotated by the photo paper supply motor A 1 so that the worm 3 and the warm wheel ( 4) power is transmitted to the drive gear 5 in the photo paper feed gears 5 and 5 ', and the driven gear 5' is rotated by the belt 6 by the rotation of the drive gear 5. Since the contact surface of the belt 6 which is in contact with the photo paper is moved, one photo paper 18 is separated from the photo paper box 19 and transferred to the fixed roller 17 and the pinch roller 16 through the photo paper guide 23. Here, the photo paper 18 by the operation of the fixed roller 17 is conveyed to a position where it can be printed. At this time, the photo paper driving motor A (1) stops and the ribbon driving motor B (2) rotates to rotate the worm 3 ', the ribbon subgear 9 and the ribbon gear 10 so that the ribbon 21 ) To the initial position, the THP 14 is lowered by a cam (not shown) and the platen roller 15 is raised to press the ribbon 21 and the photo paper 18. At this time, when the printer key is pressed, the ribbon driving motor B (2) rotates to transfer the ribbon 21, and the photo paper 18 is transferred by the rotation of the fixed roller 17, so that the photo paper 18 and the ribbon 21 are moved. While passing through the THP 14 together with the heat from the THP 14, the ribbon 21 is sublimated, the color is transferred to the photo paper, the printing operation is completed. When the printing operation is completed, the ribbon driving motor B 2 is operated to rotate the discharge roller 8 to discharge the photo paper printed on the delivery box 20 to end all operations.

However, the conventional conveying apparatus having the above configuration and operation has the following problems. That is, since the photo paper motor A for feeding and feeding the paper and the ribbon driving motor B for driving the ribbon must be provided separately, the configuration is complicated, causes a rise in manufacturing cost, and is very complicated in assembly. Cause.

Accordingly, an object of the present invention is to solve the problems of the transfer apparatus according to the prior art, and according to the present invention, a photo paper of a color video printer capable of rapidly discharging photo paper with one motor and driving a ribbon; It provides a ribbon feed device.

Hereinafter, with reference to the accompanying drawings will be described in more detail the transfer apparatus of the present invention.

3 is a schematic configuration diagram schematically illustrating the transmission structure of the photo paper and the ribbon transfer device of the color video printer according to the present invention. FIG. 4 is a perspective view schematically showing the shape of the gear portion in FIG. Fig. 3 is an enlarged perspective view showing the power converter of Fig. 3, and a and b of Fig. 6 are schematic diagrams showing the operation state at the time of printing supply discharge and the ribbon transfer operation of the power converter of Fig. 5;

According to the drawings, the photo paper and ribbon transfer device of the color video printer according to the present invention has a photo paper feed container (5, 5 ') having a roller (35, 35') on the rotation axis and the small diameter portion 26 ' Gear-connected by the photo paper supply auxiliary gear 26 consisting of a large diameter portion 26 ″ (FIGS. 3 and 4), one driving reversible motor 30 is disposed below the motor. The worm 31 is provided at 30, and the worm 31 has a configuration in which the worm gear 33 of the power converter 32, which is the main body of the present invention, is connected. The small diameter of the worm gear 33 and the worm gear 33 'is connected to the worm 31 of the heating motor 30 and is composed of a small diameter gear 33' and a large diameter gear 33 '. A movable gear 24 geared to the gear 33 ', and the movable gear 24 and a pivotal axis of the worm gear 33 are pivotally mounted so that the movable gear 24 and the worm gear ( 33 is connected to each other, and a connecting bar 25. The gears 5 and 5 'for supplying the photo paper and the ribbon feed gears 10 and 27 on both sides of the power converter 32, respectively. As shown in FIG. 4, the ribbon transfer gear portions 10 and 27 are ribbon gears 10 having a reel 10 ', a small diameter 27' and a large diameter portion 27 ". It consists of a ribbon supply gear 27 of two gears, the dual ribbon supply gear 27 is arranged to be selectively connected to the movable gear 24 of the power converter 32.

The transfer apparatus according to the present invention having the configuration as described above operates as follows. That is, when the color printing operation is started, the heating motor 30 rotates counterclockwise so that the worm 31 rotates counterclockwise as shown in FIG. 3, and thus the worm 31 The large diameter gear part 33 "of the worm gear 33 of the interlocking power conversion part 32 rotates counterclockwise to rotate the movable gear 24 clockwise while simultaneously rotating this movable gear as shown in FIG. Similarly, the left side is rotated by the rotational force of the gear so as to engage with the drive gear 5 of the photo paper feed gear portions 5, 5 ". Therefore, the rotation gear 5 'of the photo paper feed gear portions 5, 5' also rotates counterclockwise by the power transfer by the photo paper feed auxiliary gear 26. At this time, the driving gear is driven by the contact rotational force of the roller 35 'on which the uppermost photo paper 18 of the photo paper 18 which is in contact with the roller 35' on the driven gear 5 'side of the photo paper feed gear rotates. (5) moves to the side of the roller 35, wherein the photo paper 18 is two or more at a time while passing between the roller 35 and the rollers 12 '(see FIG. 4) of the photo paper discharge control gear 12. It will prevent it from being discharged. The photo paper 18 discharged from the photo paper box 19 is transferred to the fixed roller 17 through the photo paper guide 23 (see FIG. 2), and the fixed roller 17 is rolled with the pinch roller 16. Operation transfers the photo paper 18 to the printing position. At this time, the reversible motor 30 reverses the rotation direction and rotates clockwise. Accordingly, the worm 31 rotates clockwise to rotate the worm gear 33 of the power converter 32 clockwise. Let's go.

Accordingly, the movable gear 24 is rotated in the opposite direction to that shown in FIG. Contact with. As a result, the ribbon feed gear 27 rotates clockwise, and the ribbon gear 10 rotates counterclockwise. Therefore, after the ribbon 21 is drawn out from the ribbon box 12 and transferred to the printing position, the ribbon 21 is lowered by a cam (not shown), and the ribbon 21 and the photo paper 18 are lifted by the rise of the platen 15. Are pressed together. At this time, when the printer key is pressed, the reversible motor 30 is transported by the rotation, and heats from the TPH 14 while passing through the TPH 14 together with the photo paper 18 transported by the fixed roller 17. In response, the ribbon 21 is transferred to the photo paper 18 while the ribbon 21 is sublimed to finish the printing operation. When the printing operation is completed in this way, the motor 30 reverses the rotational direction and rotates counterclockwise to rotate the discharge roller 8 counterclockwise so that the photo paper 18 is discharged to the secondary auxiliary roller 22. By discharging to the discharge box 20 by the interaction of the discharge roller 8, all the operations are completed.

As described above, the photo paper and the ribbon conveying apparatus according to the present invention are selectively connected with the photo paper driving gear portion or the ribbon driving gear portion according to the rotation direction of the reversible motor, that is, the rotation direction of the movable gear, between the photo paper driving gear portion and the ribbon driving gear portion. By adopting a power conversion unit that is electrically connected, a reversible motor provides a conveying device capable of feeding and discharging photo paper and conveying ribbons.

Therefore, according to the present invention, since one reversible motor can be used to supply and discharge photo paper and ribbon feeding, the size of the color printer can be made compact, and the manufacturing cost of the product can be reduced.

Claims (4)

Transferring the color to the photo paper feeding gears 5 and 5 ′ made for feeding the photo paper 18, the photo paper discharge gear 8 for discharging the photo paper 18, and the photo paper 18. In the photo paper and ribbon transfer apparatus for a color printer having a ribbon drive gear 10, 27 for driving the ribbon 21 to feed, discharge and feed the photo paper 18 and the ribbon 21 for The motor 30 is connected to one motor 30 and the motor 30, and the power from the motor 30 is transferred to the photo paper feeding gears 5 and 5 'or the ribbon drive gears 10 and 27. Photo paper and ribbon transfer device for a color printer, characterized in that it comprises a power conversion unit (32) for selectively transmitting to. 2. The photo paper drive gear portion 5, 5 'is composed of a drive gear 5 and a driven gear 5' geared to each other, and the ribbon drive gear portions 10, 27 are geared to each other. Photo paper and ribbon transfer device for a color printer, characterized in that consisting of a ribbon gear 10 and a ribbon supply gear (27). 3. The power converter 32 includes a worm gear 33 that meshes with the worm 31 of the motor 30 and a movable gear 24 geared with the worm gear 33. The movable gear 24 is a drive gear 5 of the photo paper drive gear parts 5 and 5 'or a ribbon supply gear of the ribbon drive gear parts 10 and 27 by the forward and reverse rotation of the motor 30. Photo paper and ribbon transfer device for a color printer, characterized in that it is selectively engaged with (27). 3. The driving gear 5 and the driven gear 5 'of the photo paper driving gear portions 5 and 5' are provided with respective rotation shafts, and the photo paper 18 is disposed on one side of the rotation shaft by contact rotation. Photo paper and ribbon transfer device for a color printer, characterized in that the rollers (35, 35 ') to ground the.