JPH08300758A - Recording apparatus - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the size of recording devices. [Structure] An image receiving paper winding motor 35 is provided for rotating the image receiving paper roll 8 in order to rewind the image receiving paper 7 around the outer circumference of the image receiving paper roll 8 when returning the image receiving paper 7 fed from the image receiving paper roll 8 to the initial position. .

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus, and more particularly to a recording apparatus for recording a color image in a frame-sequential manner by returning the image receiving paper for each color to the initial position by using a roll image receiving paper.

[0002]

2. Description of the Related Art Conventionally, in a recording device such as a thermal plotter or a pen plotter, when a color image is recorded, yellow (Y), magenta (M) and cyan (C), and black (Bk) when necessary. After transferring the image for one screen in yellow (Y) while conveying the image receiving paper and the ink sheet using the ink sheet on which the ink layer of each color is formed, the image receiving paper is returned to the initial position, and the image receiving paper and the ink are re-applied. While the sheet is being conveyed, a magenta (M) image for one screen is superimposed and transferred onto the yellow image, the image receiving paper is returned to the initial position, and similarly, a cyan (C) image for one screen is yellow. Also, the image is transferred so as to be superimposed on the magenta image.

[0003]

However, in the conventional recording apparatus as described above, in order to return the image receiving paper to the initial position, an area for temporarily stocking the image receiving paper is required in the apparatus. In a recording device that prints on advertising paper, the feed length is 1 to 2 m or more, so that the stock area of the image receiving paper becomes large, which causes a problem that the device becomes large.

The present invention has been made in view of the above points, and an object thereof is to reduce the size of a recording apparatus.

[0005]

In order to solve the above-mentioned problems, a recording apparatus according to a first aspect of the present invention unwinds an image-receiving paper wound in a roll shape, prints an image of a predetermined color, and then initializes the image-receiving paper. In a recording device for recording a color image in a frame-sequential manner by returning to the position, when the image receiving paper fed from the image receiving paper roll wound in a roll shape is returned to the initial position, the image receiving paper is wrapped around the image receiving paper roll. A rewinding means for rewinding to.

A recording apparatus according to a second aspect of the present invention is the recording apparatus according to the first aspect, further comprising position detecting means for detecting the rewinding end position of the image receiving paper, and the recording start position is determined based on the detection result of the position detecting means. decide.

A recording apparatus according to a third aspect of the present invention is the recording apparatus according to the first or second aspect, further comprising a paper end detecting means for detecting an end mark indicating an end position attached to the image receiving paper, and the paper end detecting means. The recording operation is stopped based on the detection result of.

According to a fourth aspect of the present invention, in the recording apparatus according to any one of the first to third aspects, the driving means for feeding and rewinding the image receiving paper is a motor.

A recording apparatus according to a fifth aspect of the present invention is the recording apparatus according to any one of the first to fourth aspects, in which a dust-proof cover for storing the image receiving paper is provided on the feeding side of the image receiving paper.

According to a sixth aspect of the present invention, in the recording apparatus according to the fifth aspect, the dustproof cover is formed so as to be divided into at least two.

[0011]

The recording apparatus according to claim 1 further comprises rewinding means for rewinding the image-receiving paper wound around the image-receiving paper roll around the image-receiving paper roll when returning the image-receiving paper fed from the roll of the image-receiving paper roll to the initial position. Therefore, it is not necessary to provide a stock area corresponding to the moving length of the image receiving paper when returning the image receiving paper, and the size of the apparatus can be reduced.

A recording apparatus according to a second aspect of the present invention is the recording apparatus according to the first aspect, further comprising position detecting means for detecting the rewinding end position of the image receiving paper, and the recording start position is determined based on the detection result of the position detecting means. Since it is determined, the accuracy of the recording start position can be secured, the overlay accuracy of the images of the respective colors is improved, and the image quality is improved.

A recording apparatus according to a third aspect is the recording apparatus according to the first or second aspect, further comprising a sheet end detecting means for detecting an end mark indicating an end position attached to the image receiving sheet,
Since the recording operation is stopped based on the detection result of the paper end detection means, the image receiving paper end can be displayed.

According to a fourth aspect of the present invention, in the recording apparatus according to any one of the first to third aspects, the driving means for feeding and rewinding the image receiving paper is a motor. Rewinding control becomes easy.

A recording apparatus according to a fifth aspect of the present invention is the recording apparatus according to any one of the first to fourth aspects, in which a dustproof cover for accumulating the image receiving paper is provided on the feeding side of the image receiving paper. Adhesion can be prevented and high image quality can be secured.

According to a sixth aspect of the present invention, in the recording apparatus according to the fifth aspect, since the dustproof cover is formed so as to be divided into at least two parts, the operation of taking out the image receiving paper becomes easy.

[0017]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic configuration diagram of a thermal transfer recording apparatus to which the present invention is applied. In this thermal transfer recording apparatus, a base member 2 is provided on the bottom side of the apparatus main body 1, and an opening / closing member 3 is provided on the upper side of the apparatus main body 1 around a rotation support shaft 4 at a position shown by a solid line and a position shown by a virtual line. The opening / closing member 3 can be opened and closed, and the opening / closing member 3 can be divided and opened with respect to the apparatus base member 2.

A thermal head 5 as a recording head and a multi-ink sheet 6 capable of printing a plurality of times are arranged on the opening / closing member 3 side, while the image receiving paper 7 is rolled on the base member 2 side. An image receiving paper roll 8 wound in a circular shape, a platen roller 9 for pressing the thermal head 5 through the multi-ink sheet 6 and the image receiving paper 7, and the like are arranged.

A head pressure contact member 10 is arranged on the rear side of the thermal head 5, and the head pressure contact member 10 is fixed to an arm member 11 which is pivotally supported so that the arm member 11 and its upper end portion are connected to each other. The head pressure contact member 10 is moved to the thermal head 5 by the spring 12 provided between the head press contact member 10 and the fixed portion.
The roller member 13 rotatably provided at the lower end thereof is urged in the direction of opening the head opening motor 14 and brought into contact with the outer peripheral surface of the head opening cam 15 which is rotated by the head opening motor 14 to drive and control the head opening motor 14. By doing so, the head pressing member 10 swings between the head pressing position and the head opening position via the head opening cam 15 and the arm member 11.

The multi-ink sheet 6 is yellow (Y),
A magenta (M) and cyan (C) thermally sublimable (or heat-meltable) ink layer is formed in a plane-sequential manner. After passing through 17 and 18, it is wound between the thermal head 5 and the platen roller 9 and wound around the ink sheet winding roll 19. An ink sheet braking / rewinding motor 21 is provided, and the ink sheet braking / rewinding motor 21 is rotationally controlled to drive the ink sheet supply roll 16 via the transmission gear 22 and the ink sheet roll gear 23. In addition, the ink sheet take-up motor 25 is provided, and the ink sheet take-up motor 25 is rotationally controlled to rotationally drive the ink sheet take-up roll 19 side via the transmission gear 26 with the torque limiter. I am trying.

On the other hand, a tension arm 28 which is pivotally supported is brought into contact with the outer peripheral surface of the image receiving paper roll 8, and the tension arm 28 is urged by a spring 29 in the direction of coming into contact with the image receiving paper roll 8. There is. An image receiving paper drive motor 30 is provided on the downstream side of the platen roller 19, and an image receiving paper drive roller 32 is rotatably driven by the image receiving paper drive motor 30 via an image receiving paper drive gear 31. The fed image receiving paper 17 is conveyed between the thermal head 5 and the platen roller 9 while being sandwiched between the image receiving paper drive roller 32 and the pinch roller 33. Further, an image receiving paper take-up motor 35, which serves as an image receiving paper rewinding means, is provided, and the image receiving paper take-up motor 35 is rotationally controlled to drive the image receiving paper roll 8 in a rewinding direction via a gear 36 with an electromagnetic powder clutch. I am trying.

An image receiving paper cutter 38 is arranged in the image receiving paper discharging portion on the downstream side of the image receiving paper driving roller 32, and also serves as a storage portion for stocking the image receiving paper 17 cut by the image receiving paper cutter 8. A dustproof cover 40 including an open side dustproof cover 41 and a fixed side dustproof cover 42 is provided, and the open side dustproof cover 41 is attached to the fixed side dustproof cover 42 by a cover opening support shaft 43 so as to be openable and closable.

A lock knob 45 is pivotally supported at the end portion on the side of the opening / closing member 3 so that a support shaft 46 can swing, and is urged in the lock direction by a spring 47 to be formed on the lower end portion side of the lock knob 45. Locking member 48 having locking portion 45a provided on the fixed portion
By engaging with, it is possible to lock and lock in the closed state.

Further, an ink sheet end sensor 50 for detecting the end of the multi-ink sheet 6 and a paper edge sensor 51 as a position detecting means for detecting the paper edge of the image receiving paper 7 are arranged. Ink sheet end sensor 50
Detects the end of the ink sheet by detecting the end mark attached to the end of the multi-ink sheet 6 and detects the end of the image receiving paper by detecting the end mark attached to the image receiving paper roll 8. It also serves as a paper end detection unit.

The operation of the thermal transfer recording apparatus having the above structure will be described with reference to FIG. First, the electromagnetic powder clutch attached to the gear 36 for transmitting the rotation to the image receiving paper roll 8 is turned off to turn off the image receiving paper 7.
After eliminating the load during conveyance, the multi-ink sheet 6 and the image receiving paper 7 are set at the printing start position. Then, the head opening motor 14 is rotationally controlled to bring the thermal head 5 into pressure contact with the platen roller 9 via the multi-ink sheet 6 and the image receiving paper 7 by the head pressure contact member 10 via the arm member 11.

Next, the ink sheet braking / rewinding motor 21 and the ink sheet winding motor 25 are rotationally controlled to convey the multi-ink sheet 6, and the image receiving sheet driving motor 30 is rotationally controlled to receive the image receiving sheet driving roller. 32
While the image receiving paper 7 is pinched and conveyed between the pinch roller 33 and the pinch roller 33, the thermal head 5 is driven and controlled in accordance with the image data, and one screen of the image receiving paper 7 is used by using the yellow (Y) multi-ink sheet 6. Print the image of.

At this time, by controlling the feeding amount of the ink sheet supply roll 16 by the ink sheet braking / winding motor 21, the multi-ink sheet 6 is conveyed at a conveying speed 1 / n times the conveying speed of the image receiving paper 7. It is transported by and printed. Further, the ink sheet take-up roll 19 side is wound via a torque limiter to prevent the multi-ink sheet 6 from being excessively tensioned. In this case, the same effect can be obtained by using a low-torque DC motor having an allowable tension equal to or less than that of providing the multi-ink sheet 6.

Then, the head opening motor 14 is rotationally driven in the opposite direction to release the pressure contact of the thermal head 5, and the electromagnetic powder clutch is energized to turn it on so that the rotational force of the image receiving paper winding motor 35 is received. After the transfer to the roll 8, the image receiving paper drive motor 30 is rotationally controlled in the reverse direction, and the image receiving paper winding motor 35 is rotationally controlled in the reverse direction. As a result, the image receiving paper 7 fed from the image receiving paper roll 8 for printing an image in yellow (Y)
Is rewound around the outer circumference of the image receiving paper roll 8. After that, when the paper edge sensor 51 detects the leading edge of the image receiving paper 7, the image receiving paper drive motor 30 and the image receiving paper winding motor 35 are stopped.

In this way, the image receiving paper 7 fed from the image receiving paper roll 8 is re-wound around the image receiving paper roll 8 after the image is printed in a predetermined color, so that a stock area corresponding to the moving length of the image receiving paper is obtained. Since it is not necessary to provide the device, the device can be downsized. In addition, the image receiving paper winding motor 35
By interposing an electromagnetic powder clutch capable of slip transmission between the image receiving paper roll 8 and the image receiving paper roll 8, it is possible to perform winding while absorbing an excessive amount of peripheral speed. further,
Since the image receiving paper 7 is temporarily stocked in the dustproof cover 40 during printing, it is possible to prevent dust and the like from adhering to the image receiving paper 7 during printing.

Returning to FIG. 2, after that, the electromagnetic powder clutch is de-energized, the image-receiving paper drive motor 30 is rotated in the normal direction, and the image-receiving paper 7 is conveyed by a predetermined specified number of lines. The printing start position. That is, when the paper edge sensor 51 detects the leading edge of the image receiving paper 7 as described above, the rewinding of the image receiving paper 7 is stopped, and the position conveyed by the specified number of lines from this position is the recording start position. By doing so, the overlay position accuracy of the images is improved and the image quality is improved.

Then, a procedure of magenta (M) similar to that described for printing the image of yellow (Y) is used to perform the process of superimposing the image of one screen on the image of yellow (Y) and printing the image. The paper 7 is wound around the outer peripheral surface of the image receiving paper roll 8 to return the image receiving paper 7 to the initial position, and further, one image of one screen is converted into an image of yellow (Y) and magenta (M) with cyan (C). After a color image is recorded by superposing and printing, the image receiving paper 7 is conveyed, cut by the image receiving paper cutter 38 to a required length, and discharged into the dustproof cover 40.

At this time, the dustproof cover 40 is the open side cover 4
Since 1 can be opened, the printed (recorded) image receiving paper 7 can be easily taken out from the dustproof cover 40.

Further, in this thermal transfer recording apparatus, an end mark indicating the end of the paper is attached to the end of the image receiving paper roll 8, and when the end mark is detected by the ink sheet end sensor 50, printing is not possible and the operation is stopped. At the same time, the fact is displayed by a display lamp or the like.

[0033]

As described above, according to the recording apparatus of the first aspect, when the image receiving paper fed from the image receiving paper roll wound in a roll shape is returned to the initial position, this image receiving paper is transferred to the image receiving paper roll. Since it is rewound around, it is not necessary to provide a stock area corresponding to the moving length of the image receiving paper when returning the image receiving paper, and the size of the apparatus can be reduced.

According to the recording apparatus of claim 2, in the recording apparatus of claim 1, the rewinding end position of the image receiving paper is detected, and the recording start position is determined based on the detection result. The accuracy of the recording start position can be secured, the overlay accuracy of the images of the respective colors is improved, and the image quality is improved.

According to the recording apparatus of claim 3, in the recording apparatus of claim 1 or 2, the end mark indicating the end position attached to the image receiving paper is detected, and the recording operation is stopped based on the detection result. Therefore, the image receiving paper end can be displayed.

According to the recording apparatus of claim 4, in the recording apparatus according to any one of claims 1 to 3, the driving means for feeding and rewinding the image receiving paper is a motor, so that Control of feeding and rewinding becomes easy.

According to the recording apparatus of claim 5, in the recording apparatus according to any one of claims 1 to 4, a dustproof cover for storing the image receiving paper is provided on the feeding side of the image receiving paper.
It is possible to prevent dust and the like from adhering during recording and ensure high image quality.

According to the recording apparatus of the sixth aspect, in the recording apparatus of the fifth aspect, since the dustproof cover is formed so as to be divided into at least two parts, the operation of taking out the image receiving paper becomes easy.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a thermal transfer recording apparatus to which the present invention is applied.

FIG. 2 is a flowchart for explaining the operation of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Device main body, 2 ... Base member, 3 ... Opening / closing member, 5 ... Thermal head, 6 ... Multi-ink sheet, 7 ... Image receiving paper,
8 ... Image receiving paper roll, 9 ... Platen roller, 14 ... Head opening motor, 16 ... Ink sheet supply roll, 19 ... Ink sheet winding roll, 21 ... Ink sheet braking / rewinding motor, 25 ... Ink sheet winding motor, 30 ...
Image receiving paper drive motor, 32 ... Image receiving paper drive roller, 35 ... Image receiving paper winding motor, 36 ... Gear with electromagnetic powder clutch, 40 ... Dust cover 50, Ink sheet end sensor, 51 ... Paper edge sensor.

Claims (6)

[Claims] 1. A recording apparatus for recording a color image in a frame-sequential manner by feeding out an image receiving paper wound in a roll form, printing an image of a predetermined color, and then returning the image receiving paper to an initial position. A recording apparatus comprising rewinding means for rewinding the image-receiving paper, which is wound around the image-receiving paper roll, around the image-receiving paper roll when returning the image-receiving paper to the initial position. 2. The recording apparatus according to claim 1, further comprising position detecting means for detecting a rewinding end position of the image receiving paper,
A recording apparatus which determines a recording start position based on a detection result of the position detecting means. 3. The recording apparatus according to claim 1, further comprising a paper end detection means for detecting an end mark indicating an end position attached to the image receiving paper, and based on a detection result of the paper end detection means. A recording device characterized in that the recording operation is stopped. 4. The recording apparatus according to claim 1, wherein the driving means for feeding and rewinding the image receiving paper is a motor. 5. The recording apparatus according to claim 1, further comprising a dust-proof cover for accommodating the image receiving paper, which is provided on a feeding side of the image receiving paper. 6. The recording apparatus according to claim 5, wherein the dustproof cover is formed so as to be divided into at least two.