JP2001001588A - Printer and printing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent simultaneous occurrence of a roll sheet cutting operation and a roll sheet feeding operation by feeding a roll sheet with the power of a motor and cutting the roll sheet. SOLUTION: A motor 8 is rotated in the arrow direction A and rotating power is transmitted through a pulley 9, a belt 10, a pulley 27 and one-way clutch 25 to a platen 26 thus rotating the platen 26 in the arrow direction B and feeding a roll sheet 6. Power of the motor 8 is transmitted to a pinion 20 and rotating power is transmitted through the pulley 9, the belt 10, the pulley 27, a belt 11, a pulley 19 and an electromagnetic clutch 18 to the pinion 20 thus rotating the pinion 20. A rack 17 and a movable cutter 16 are thereby moved in a specified direction and the forward end of the movable cutter 16 is slid upon touching a sheet thus cutting the sheet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing apparatus for printing on roll paper, and more particularly to a technique for feeding and cutting roll paper with a single motor.

[0002]

2. Description of the Related Art As a printing apparatus used for a register and a facsimile of a store, a printing apparatus for printing on roll paper is widely used. It is necessary to cut the printed portion of this roll paper after printing. Here, a conventional printing apparatus using roll paper will be described.

Conventionally, a printing apparatus using roll paper has a mechanism for feeding roll paper and a mechanism for cutting roll paper. Also. Each mechanism was performed by a separate power source. For example, a mechanism for feeding roll paper uses a rotary motor, and a mechanism for cutting roll paper uses a solenoid with a cutter and a rotary motor that converts the motion into linear motion.

[0004]

However, there is a problem that the provision of separate power sources increases the size of the apparatus. Also, a separate circuit for driving the power source was required. Furthermore, since the power sources are separate, there is a problem that the operation of cutting the roll paper and the operation of feeding the roll paper occur simultaneously.

[0005] Accordingly, an object of the present invention is to solve the above-mentioned problems and to provide a technique capable of miniaturizing and simplifying a printing apparatus.

[0006]

An object of the present invention is to provide a printing apparatus for printing on roll paper, comprising a motor, means for feeding the roll paper by the power of the motor, and the roll by the power of the motor. Means for cutting the paper.

A printing apparatus for printing on roll paper, comprising: a motor rotating clockwise and counterclockwise; and a one-way clutch transmitting torque only in one of the clockwise and counterclockwise directions of the motor. A clutch that transmits the rotational force of the motor in response to a disconnection signal, and a motor that rotates the motor in a direction in which the one-way clutch transmits the rotational force, and rotates the roll paper with the rotational force transmitted from the one-way clutch. Means for feeding paper, rotating the motor in a direction opposite to the direction in which the one-way clutch transmits the torque, and outputting the disconnection signal to the clutch to rotate the roll paper with the torque transmitted from the clutch. And a cutting device.

A printing apparatus for printing on roll paper, comprising: a motor; a first clutch for transmitting a rotational force of the motor in response to a paper feed signal; and a motor in response to a disconnection signal. And a second clutch for transmitting the rotational force of the roll paper, the motor is rotated, and the paper feed signal is output to the first clutch to feed the roll paper by the power transmitted from the first clutch. And a means for rotating the motor, outputting the disconnection signal to the second clutch, and cutting the roll paper with power transmitted from the second clutch. Solved by the printing device.

In particular, there is provided a printing apparatus for printing on roll paper, comprising: a motor rotating in one direction; a first clutch transmitting torque of the motor in response to a paper feed signal; And a second clutch for transmitting the rotational force of the motor, and rotating the motor, and outputting the paper feed signal to the first clutch to transmit the paper with the power transmitted from the first clutch. Means for feeding the roll paper, and means for rotating the motor, outputting the disconnection signal to the second clutch, and cutting the roll paper with power transmitted from the second clutch. It is solved by a printing apparatus characterized in that:

[0010] The printing apparatus is a thermal printing apparatus. Or, the printing device,
It is a dot impact type printing apparatus. Further, the above-mentioned problem is a printing method having a motor and printing on roll paper, wherein the step of rotating the motor to feed the roll paper and the step of rotating the motor to cut the roll paper And a printing method.

A printing method for printing on roll paper having a motor, wherein the motor is rotated in one of clockwise and counterclockwise directions to feed the roll paper; Rotating the motor in a direction opposite to the direction of rotation of the roll paper to cut the roll paper.

According to the above technology, the size of the printing apparatus can be reduced,
And simplification.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment according to the present invention will be described with reference to FIGS. FIG. 1 is a configuration diagram of a printing apparatus according to the first embodiment. FIG. 2 is a flowchart in the first embodiment. FIG. 3 shows a state where the movable blade 16 cuts the roll paper 6. FIG. 4 shows a state where the movable blade 16 has slid to a position where the sensor 24 detects the movable blade 16. FIG. 5 shows a state where the movable blade 16 has returned to the home position.

The printing apparatus according to the first embodiment includes a printing unit that prints on roll paper, a paper feeding unit that feeds roll paper, a cutting unit that cuts (cuts) the printed roll paper, and a power source. A motor 8, a roll paper 6, a holder 5 for storing the roll paper 6, an upper frame 4 that opens and closes when the roll paper 6 is replaced, a hinge 28 that supports the upper frame 4, a control board 29, And a base 7 serving as a housing.

Further, the printing unit houses a thermal head 1 of a thermal type for performing printing by a thermal system, a spring 2 for pressing the thermal head 1, a head support unit 3 for supporting the thermal head 1, and a printing unit. And an upper frame 4. The paper feed unit includes a plantain 26 that rotates to feed the paper, a pulley 27, and a one-way clutch 25 that is connected between the plantain 26 and the pulley 27 and that transmits the rotation of the pulley 27 in only one direction. ,
It is composed of a pulley 9 fixed to the motor 8 and a belt 10 for transmitting the power of the motor 8 to the plantain 26 via the pulley 27 and the pulley 9. The paper feeder transmits the rotation of the motor 8 to the plantain 26 in one direction (arrow A) by the one-way clutch 25 to feed the roll paper 6. When the motor 8 rotates in the direction opposite to the direction of the arrow A, the power of the motor 8 is not transmitted to the plantain 26 by the one-way clutch 25. That is, the motor 8
Rotates in the direction opposite to the direction of arrow A, the plantain 26 stops.

Next, the cutting section includes a movable blade 16 for cutting the roll paper 6 and a guide 2 for guiding the movement of the movable blade 16.
1, a rack 17 fixed to a movable blade 16, and a rack 1
7, a pulley 19 fixed to the pinion 20, a belt 11 transmitting power for rotating the pinion 20 from the motor 8 via the pulley 19 and the pulley 27, and a control signal (cutting). Signal), an electromagnetic clutch 18 for transmitting and disconnecting the power of the motor 8 to and from the pinion 20, and a hook 14 fixed to the movable blade 16.
A hook 13 fixed to the base 7, a spring 12 having one end attached to the hook 13 and another end attached to the hook 14, and a sensor 24 for detecting that the movable blade 16 has moved to a predetermined position (for example, (Proximity sensor) and a slit 23 for protecting the movable blade 16.
The cut section excites the electromagnetic clutch 18 only when cutting the roll paper 6 and transmits the power of the motor 8 to the pinion 20. Upon receiving the power, the pinion 20 rotates,
The rack 17 is moved linearly. During this linear movement, the movable blade 16 fixed to the rack 17 also moves. The roll paper 6 is cut by the movement of the movable blade 16.
When the cutting of the roll paper 6 is completed, the excitation of the electromagnetic clutch 18 is stopped. As a result, the movable blade 16 is
Is returned to the position (home position) shown in FIG.

Next, the operation of the first embodiment will be described. In FIG. 1, an arrow A indicates the rotation direction of the motor 8. First, the motor 8 is rotated in the direction of arrow A (step S51). The rotating power of the motor 8 is transmitted to the plantain 26 through the pulley 9, the belt 10, the pulley 27, and the one-way clutch 25. As a result, the plantain 26 rotates in the direction of arrow B to feed the roll paper 6. This paper feeding is performed up to a position where the thermal head 1 can print (step S52). Then, the thermal head 1 performs printing (step S5).
3). After the printing is completed, the roll paper 6 is fed by the predetermined length by the plantain 26. Thus, the printed portion of the roll paper 6 is discharged to the outside (step S5).
4).

On the other hand, in the cutter section, a control signal (disconnection signal) is not output to the electromagnetic clutch 18 when the roll paper 6 is being fed. That is, the electromagnetic clutch 18 is not excited. Thereby, the power for rotating the motor 8 in the direction of arrow A is transmitted to the pulley 19,
Is not transmitted to Next, an operation of cutting the rolled paper 6 of the printed portion after the printing is completed will be described.

In FIGS. 3 to 5, reference numeral 22 denotes a sheet on which the roll paper 6 has been cut by the movable blade 16. First, the motor 8
Check for suspension. Next, a control signal (disconnection signal) is output to the electromagnetic clutch 18 to excite the electromagnetic clutch 18. Then, the power of the motor 8 can be transmitted to the pinion 20. Next, the motor 8 is rotated in the direction of arrow C. The power of this rotation is transmitted to the pinion 20 via the pulley 9, the belt 10, the pulley 27, the belt 11, the pulley 19, and the electromagnetic clutch 18. In response to the transmission of the power, the pinion 20 rotates in the direction of arrow D. In response to the rotation of the pinion 20, the rack 17 moves (slides) in the direction of arrow E. During this movement, the movable blade 16 fixed to the rack 17 also moves in the direction of arrow E (step S55). Then, the tip of the movable blade 16 comes into contact with the paper 22, and the movable blade 16 is further slid to cut the paper 22. This state is shown in FIG.

Then, when the movable blade 16 is further slid, the sensor 24 attached to the upper frame 4 detects the movable blade 16 (step S56). In response to this detection, the motor 8 is stopped and a control signal (disconnect signal)
Is stopped to excite the electromagnetic clutch 18. That is, the transmission of the power of the motor 8 to the movable blade 16 is shut off. This state is shown in FIG.

Next, the movable blade 16 moves in the direction of arrow F due to the tension of the spring 12 (in the direction of arrow G). Thus, the movable blade 16 returns to the home position (Step 57). This state is shown in FIG. Next, a second embodiment according to the present invention will be described with reference to FIG.
In the description of the second embodiment, description of the same parts as in the first embodiment will be omitted, and only different parts will be described.

FIG. 6 is a configuration diagram of a printing apparatus according to the second embodiment. In FIG. 6, reference numeral 30 denotes a serial dot impact head for performing printing by the dot impact method. In the second embodiment, printing is performed on the roll paper 6 by the dot impact head 30.

First, the plantain 26 is rotated by the motor 8 to feed the roll paper 6 by one line. Then, the motor 8 is stopped to stop the paper feeding. Next, one line of printing is performed by the dot impact head 30. Further, when printing, the roll paper 6 is fed by one line and the dot
Printing is performed by the impact method. After the printing is completed, the printed roll paper 6 is cut by the same operation as in the first embodiment.

Next, a third embodiment of the present invention will be described with reference to FIGS. In the description of the third embodiment, the description of the same parts as in the first embodiment and the second embodiment will be omitted, and only different parts will be described. FIG. 7 is a configuration diagram of a printing apparatus according to the third embodiment. FIG. 8 is a flowchart in the third embodiment. FIG. 9 illustrates a state where the movable blade 16 of the printing apparatus according to the third embodiment cuts the roll paper 6. FIG. 10 illustrates a state where the movable blade 16 of the printing apparatus according to the third embodiment has slid to a position where the sensor 24 detects the movable blade 16. FIG. 11 shows a state where the movable blade 16 of the printing apparatus according to the third embodiment has returned to the home position. FIG.
This shows a configuration in which the printing apparatus according to the third embodiment uses a dot impact head as a print head.

In the third embodiment, the one-way clutch 2
An electromagnetic clutch 32 is used in place of 5. The electromagnetic clutch 32 transmits power by fixing the clutch when a control signal (paper feed signal) is input. Hereinafter, to turn on the electromagnetic clutch 32 and the electromagnetic clutch 18 means:
It is assumed that power can be transmitted. Turning off the electromagnetic clutch 32 and the electromagnetic clutch 18 means that
It is assumed that the clutch is set free so that power cannot be transmitted.

A two-stage pulley 33 is used instead of the pulley 9. Further, a belt 31 is added. The belt 31 is attached to the pulley 33 and the pulley 19, and the rotation of the pulley 33 is transmitted to the pulley 19. Next, the operation of the third embodiment will be described. First, the electromagnetic clutch 1
8 is turned off and the electromagnetic clutch 32 is turned on. Then, the motor 8 is rotated in the counterclockwise direction (the direction of arrow A). The rotation of the motor 8 is transmitted through the pulley 33, the belt 10, the pulley 27, and the electromagnetic clutch 32.
6 to rotate the plantain 26 in the direction of arrow B. Thus, the roll paper 6 is fed (step S81).

Next, the electromagnetic clutch 18 is turned on and the electromagnetic clutch 32 is turned off. Then, the motor 8 is rotated clockwise (direction of arrow C). The rotation of the motor 8 is transmitted to the pinion 20 via the pulley 33, the belt 31, the pulley 19, and the electromagnetic clutch 18, and
0 is rotated in the direction of arrow D. Thereby, the rack 17
Is movable in the direction of arrow E. Then, the roll paper 6 is cut (step S8).
2).

Further, the movable blade 16 is slid in the direction of the arrow E until the sensor 24 detects it (step S83).
When the movable blade 16 is detected by the sensor 24, the electromagnetic clutch 18 is turned off and the motor 8 is stopped. Then, the movable blade 16 is returned to the home position by the spring 12 (Step S84).

As shown in FIG. 12, a dot impact type dot impact head 30 may be used as a print head. Next, a fourth embodiment according to the present invention will be described with reference to FIG. In the description of the fourth embodiment, a description of parts similar to those of the first, second, and fourth embodiments will be omitted, and only different parts will be described.

FIG. 13 is a configuration diagram of a printing apparatus according to the fourth embodiment. In the fourth embodiment, the gear 34 is used between the pulley 19 and the pinion 20. Next, an operation of cutting roll paper according to the fourth embodiment will be described. First, the electromagnetic clutch 18 is turned on, and the electromagnetic clutch 32 is turned off. Then, the motor 8 is rotated in the counterclockwise direction (the direction of arrow A). The rotation of the motor 8 is transmitted to the gear 34 via the pulley 33, the belt 31, the pulley 19, and the electromagnetic clutch 18, and rotates the gear 34 in the direction of arrow H. The rotation of the gear 34 is transmitted to the pinion 20, and rotates the pinion 20 in the direction of arrow I. Thereby, the movable blade 16 fixed to the rack 17 slides in the direction of arrow E, and cuts the roll paper 6.

Thus, the motor 8 can feed and cut the roll paper 6 only by rotating counterclockwise (in the direction of arrow A).

[0032]

As described above, according to the present invention, the roll paper can be fed and cut by one motor, so that the printing apparatus can be reduced in size and simplified.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a printing apparatus according to a first embodiment of the invention.

FIG. 2 is a flowchart of a first embodiment according to the present invention.

FIG. 3 is a diagram illustrating a state in which the printing apparatus according to the first embodiment of the present invention has cut roll paper.

FIG. 4 is a diagram illustrating a state in which a movable blade 16 of the printing apparatus according to the first embodiment of the present invention has moved to a cutting end position.

FIG. 5 is a diagram illustrating a state where the movable blade 16 of the printing apparatus according to the first embodiment of the present invention has returned to the home position.

FIG. 6 is a configuration diagram of a printing apparatus according to a second embodiment of the invention.

FIG. 7 is a configuration diagram of a printing apparatus according to a third embodiment of the invention.

FIG. 8 is a flowchart of a third embodiment according to the present invention.

FIG. 9 is a diagram illustrating a state in which a printing apparatus according to a third embodiment of the present invention has cut roll paper.

FIG. 10 is a diagram illustrating a state in which a movable blade 16 of a printing apparatus according to a third embodiment of the present invention has moved to a cutting end position.

FIG. 11 is a diagram illustrating a state where the movable blade 16 of the printing apparatus according to the third embodiment of the present invention has returned to the home position.

FIG. 12 is a configuration diagram when a dot impact head is used in a printing apparatus according to a third embodiment of the present invention.

FIG. 13 is a configuration diagram of a printing apparatus according to a fourth embodiment of the invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Thermal head 2 Spring 3 Head support part 4 Upper frame 5 Holder 6 Roll paper 7 Base 8 Motor 9 Pulley 10 Belt 11 Belt 12 Spring 13 Hook 14 Hook 16 Movable blade 17 Rack 18 Electromagnetic clutch 19 Pulley 20 Pinion 21 Guide 22 Paper 23 Slit 24 Sensor 25 One-way clutch 26 Platen 27 Pulley 28 Hinge 29 Control board 30 Print head 31 Belt 32 Electromagnetic clutch 33 Pulley 34 Gear

Claims (8)

[Claims] 1. A printing apparatus for printing on roll paper, comprising: a motor; means for feeding the roll paper with the power of the motor; and means for cutting the roll paper with the power of the motor. A printing apparatus characterized by the above-mentioned. 2. A printing device for printing on roll paper, comprising: a motor rotating clockwise and counterclockwise; a one-way clutch transmitting torque only in one of clockwise or counterclockwise directions of the motor. A clutch that transmits a rotational force of the motor in response to a disconnection signal; and a motor that rotates the motor in a direction in which the one-way clutch transmits the rotational force, and rotates the roll paper with the rotational force transmitted from the one-way clutch. Means for feeding the paper, rotating the motor in a direction opposite to the direction in which the one-way clutch transmits the torque, and outputting the disconnection signal to the clutch to rotate the roll paper with the torque transmitted from the clutch. And a cutting device. 3. A printing apparatus for printing on roll paper, comprising: a motor; a first clutch for transmitting a rotational force of the motor in response to a paper feed signal; and a motor in response to a disconnection signal. A second clutch that transmits the rotational force of the roll paper, and rotates the motor, and outputs the paper feed signal to the first clutch to feed the roll paper by the power transmitted from the first clutch. And a means for rotating the motor, outputting the disconnection signal to the second clutch, and cutting the roll paper with power transmitted from the second clutch. Printing device. 4. A printing apparatus for printing on roll paper, comprising: a motor rotating in one direction; a first clutch transmitting torque of the motor in response to a paper feed signal; And a second clutch for transmitting the rotational force of the motor; and rotating the motor, and outputting the paper feed signal to the first clutch to transmit the paper with the power transmitted from the first clutch. Means for feeding the roll paper, and means for rotating the motor, outputting the disconnection signal to the second clutch, and cutting the roll paper with power transmitted from the second clutch. A printing device, characterized by: 5. The printing apparatus according to claim 1, wherein said printing apparatus is a thermal printing apparatus. 6. The printing apparatus according to claim 1, wherein said printing apparatus is a dot impact type printing apparatus. 7. A printing method having a motor and printing on roll paper, the method comprising: rotating the motor to feed the roll paper; and rotating the motor to cut the roll paper. And a printing method comprising: 8. A printing method having a motor and printing on roll paper, the method comprising: rotating the motor in one of clockwise or counterclockwise directions to feed the roll paper; Rotating the motor in a direction opposite to the direction of rotation of the roll paper to cut the roll paper.