KR100195526B1 - Printer for issuing two colors receipt and printing mechanism thereof - Google Patents

Abstract

The present invention relates to a printer for two-color receipt printing and a two-color printing mechanism that can use two colors of black and red in issuing a receipt, and is characterized in that it comprises a ribbon (12) for showing letters, a ribbon cover A spring 6 for lifting up the ribbon cover 5 and a protrusion 81 for restoring the state of the ribbon up, a motor 2 for driving the cam, A solenoid 1 for pulling the solenoid shaft 11 by an applied electric power source, a solenoid link 11 interlocked with the solenoid shaft 11 and formed with upper and lower jaws 31 and 32, A ribbon link 4 connected to the ribbon cover 5 by a motion of the solenoid link 3 in the upward and downward directions, a pinion 10 for applying a rotational force to the gear 11, And a bracket (13) for holding the knife When the solenoid 1 is powered by applying power to the solenoid 1 and power is applied to the solenoid 1 to pull the solenoid link 3, the upper jaw 31 of the solenoid link is turned to the synchronization 41 And the ribbon cover 4 and the ribbon cover 5 interlocked with the ribbon link 4 are upwardly moved by the spring 6 so that the lower end color of the ribbon 12 can be printed. The protruding portion 81 of the cam 8 rotated by the pinion 10 is rotated by the motor 2 on the ribbon link protrusion 41 so that the ribbon link 4 is downward And a two-color mechanism of a receipt issuing printer in which the lower jaw 32 of the solenoid link is released by the elastic force of the spring 7 and the ribbon link 4 is reduced and fixed to the original position.

Description

Two-color receipt printer and printing mechanism

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer and a printing mechanism for issuing two-color receipts. More specifically, the present invention relates to a two-color receipt issuing printer and a two-color printing mechanism in which two colors of black and red can be used in issuing a receipt.

In the conventional printer for receipt issuing, since only one printer motor is used for line feed and cassette feed, only uni-direction print is possible, and the shortest distance factor (Logic Seek is also not possible, so there is an unnecessarily large number of carriage feeds. Since the structure of the two-color mechanism is connected to the line feed mechanism and driven, the color can not be changed before the line (line) is changed.

In driving the conventional receipt printing printer as described above, the two-color driving cam (CAM) is operated by the line feed drive gear and the gear train. In the case of normal printing (black), in order to operate the solenoid to print in red, the ribbon cover is lifted up by the spring while detaching the link, so that it can print red. To return the print color to black, the drive cam rotates at the line feed and returns to its original position.

In the receipt issuing printer driven in this manner, since one line is used for printing the line feed and the carriage feed, only one direction printing is possible, and the shortest distance factor is also impossible. Therefore, since the two-color mechanism also works like a line feed, the color can not be changed before the line (line) is changed, so that the issue time of the receipt becomes long.

The present invention has been made in order to overcome the above-mentioned problems of the related art, and it is an object of the present invention to solve the problem of the receipt printer and to use it in a printer for bidirectional printing, And it is an object of the present invention to provide a receipt printing printer and a two-color printing mechanism which can print at a high speed.

According to another aspect of the present invention, there is provided a printer for issuing a receipt, comprising: a ribbon for displaying letters; a ribbon cover for supporting the ribbon; a spring for lifting up the ribbon cover; And a solenoid link interlocked with the solenoid shaft and formed with upper and lower jaws, and a solenoid link interlocked with the solenoid shaft, A two-color receipt printer including a ribbon link connected to the ribbon cover in a downward motion, a pinion for imparting a rotational force to the gear, and a bracket for holding the positions of the components, and a solenoid for supplying power to the solenoid, The upper jaw of the link is released from the projection, The ribbon link and the ribbon cover interlocked with the ribbon link are upwardly moved by the ring so that the lower end color of the ribbon can be printed. When the initial color of the ribbon is returned to the end position of printing, the protrusion of the cam rotated by the pinion of the motor And a two-color mechanism of a printer for issuing a receipt, wherein the ribbon link is downwardly turned by the ribbon link projection and the lower end of the solenoid link is released by the elastic force of the spring and the ribbon link is reduced and fixed to the original position.

FIG. 1 is a perspective view of a printer of a receipt issuing printer according to the present invention. FIG.

Figure 2a is a cross-sectional view of the main part of the present invention and is a state diagram in a normal hanging mode.

Fig. 2b is a cross-sectional view of the main part of the present invention and shows an operational state when printing in red. Fig.

FIG. 2c is an operational state when reducing to a general printing mode in FIG. 2b.

FIG. 3 is a perspective view of a receipt printer according to the present invention; FIG.

DESCRIPTION OF THE REFERENCE NUMERALS

1: Solenoid 11: Solenoid axis

2: Step motor 3: Solenoid link

31: upper jaw 32: lower jaw

4: Ribbon link 41: Ribbon link rotation

5: ribbon cover 6, 7: spring

8: cam 81: cam protrusion

9: Gear 10: Pinion

11: Gear 12: Ribbon

13: Bracket

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is an exploded perspective view of a printer for issuing a receipt according to the present invention. FIG. 1 is a perspective view of a printer for issuing a receipt according to the present invention. The ribbon includes a ribbon 12, a ribbon cover 5 for supporting the ribbon, a spring 6 for lifting up the ribbon cover 5, A motor 8 for driving the cam in a state where the ribbon is lifted up, a motor 2 for driving the cam, gears 9 and 11 for transmitting the power of the motor, a solenoid 1 for pulling the solenoid shaft 19 A solenoid link 3 formed with upper and lower jaws 31 and 32, a ribbon link 4 moving upward and downward by the action of the solenoid link 3, And a bracket 13 for holding the positions of the components.

FIG. 2 shows a cross-sectional view of the main part of the present invention.

2a is a state diagram in a general printing mode in which the upper jaw 31 of the solenoid link 3 connected to the end of the solenoid shaft 19 is caught by the ribbon link protrusion 41 and the solenoid link 3 is connected to the spring 7 As shown in Fig.

FIG. 2b shows an operating state diagram when printing in red. As shown in FIG. 2a, when power is applied to the solenoid 1 in the printing mode, the solenoid 1 applies the solenoid link 3 to the solenoid The upper jaw 31 of the solenoid link 3 held by the ribbon link protrusion 41 is released and the lower jaw 32 of the solenoid link is pulled toward the ribbon link protrusion 41 And the ribbon cover 5 and the ribbon link 4 connected to the ribbon cover 5 are lifted up by the elastic force of the spring 6.

2c shows a state of operation when reducing the printing mode to the general printing mode in FIG. 2b. When the cam protrusion 81 rotates around the ribbon link protrusion 41 due to the rotation of the cam 8, The lower jaw 32 of the solenoid link 3 is released by the elastic force of the upper jaw 31 and the upper jaw 31 is caught by the projection to return to the normal printing mode.

Hereinafter, the operation and effect of the present invention will be described.

In the receipt printer of the present invention, the paper to be printed is loaded through an end slot (not shown) of the printer, and the ribbon 12 with two colors is fixed so as to be movable like the ribbon cover 5, And the ribbon link 4 is fixed by the solenoid link 3 being urged by the spring 6 in the normal printing mode.

When red printing is required during printing, power is applied to the solenoid 1 so that the solenoid shaft 19 is pulled and the solenoid link 3 interlocked with the solenoid shaft 19 is directed to the solenoid 1 side. At this time, the upper jaw (31) of the solenoid link is released from the ribbon link projection (41). At this time, the elastic force of the spring 6 causes the ribbon link 4 and the ribbon cover 5 to come up and the lower step 32 of the solenoid link 3 to be caught by the ribbon link protrusion 41.

The protruding portion 81 of the cam 8 rotated by the pinion 910 of the motor 2 rotates about the ribbon link protrusion 41 so that the ribbon link 4 is moved downward The lower jaw 32 of the solenoid link 3 is released by the resilient force of the spring 7 so that the ribbon link 4 is fixed in place and the upper jaw 31 of the solenoid link is fixed It is caught by the projection 41 of the ribbon link as in the normal printing mode.

As described above, since the present invention can be applied to a printer that performs bidirectional printing, it can be applied to a shortest distance factor (Logic Seek), and red printing can be performed at a desired position, .

Claims (2)

A receipt issuing printer comprising: a ribbon (12) for showing letters; a ribbon cover (5) for supporting the ribbon; a spring (6) for raising the ribbon cover (5); a protrusion A solenoid 1 for pulling the solenoid shaft 19 by an applied power source, a solenoid 1 for driving the solenoid shaft 19 by an applied power source, A solenoid link 3 interlocked with the solenoid shaft 19 and formed with upper and lower jaws 31 and 32 and a ribbon link 5 connected to the ribbon cover 5 in an upward and downward motion by the operation of the solenoid link 3 4), a pinion (10) for applying a rotational force to the gear (11), and a bracket (13) for holding the positions of the components. When the solenoid 1 is powered and the solenoid link 3 is pulled, the upper jaw 31 of the solenoid link is released from the projection 41, and the spring 6 releases the ribbon The link 4 and the ribbon cover 5 interlocked with the ribbon link 4 are upwardly directed to print the lower end color of the ribbon 12 and when the motor 2 returns to the initial position or end of printing, The protruding portion 81 of the cam 8 rotated by the pinion 10 of the solenoid link 4 rotates along the ribbon link protrusion 41 so that the ribbon link 4 is downwardly biased by the elastic force of the spring 7, (32) is released and the ribbon link (4) is reduced and fixed to the original position.