JPS61274964A - Color recording apparatus - Google Patents

Abstract

PURPOSE:To provide a small and inexpensive color recording apparatus capable of performing the recording of a color image in accordance with surface sequence, by forming a recording paper recirculation path for selectively taking in the recording paper sent out from a thermal head to again feed the same to the thermal head. CONSTITUTION:A recording paper feed system has a recording paper feed path 31 for guiding the recording paper 22 of a recording paper receiving part 20 to a recording part 10, a recording paper discharge path 32 for guiding the recording paper 22 from the recording part 20 to a taking-off tray 2 and a recording paper recirculation path 33 allowing not only the inlet 33a thereof to face to the recording paper discharge path 32 but also the outlet 33b thereof to the recording paper feed path 31 and formed into a loop shape as a whole. The shaft 34a of the feed roller 34 of a feed means 36 is connected to the stepping motor 13 for applying rotary driving to a platen roller 11 and a feed roller 34 receives rotary driving by the stepping motor 13 along with the platen roller 11. An advance path change-over means 51 is mounted to the confluent part of the recording paper feed path 32 and the recording paper recirculation path 33.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a color recording device, and more particularly to a color recording device using a thermal transfer recording method.

[Technical background of the invention and its problems]

Conventionally, methods for recording color information include an inksheet recording method, an electrophotographic method, an electrostatic recording method, and a thermal transfer recording method. Among these, the inksheet recording method uses colored ink and ejects it from small-diameter nozzles independent for each color in accordance with the image signal to be recorded to adhere to the recording paper and record. There were problems in that the speed could not be increased because of the difficulty of the process, and the nozzle was easily clogged, resulting in poor reliability of the device. In contrast, in electrophotography, a photoconductor drum that has been uniformly charged in advance is scanned and exposed in a dark place with a light beam such as a laser beam modulated by an image signal to obtain an electrostatic latent image, and toner is selectively applied to this latent image. After being applied and developed, the process is transferred to plain paper, and as the process is repeated for each color, the process is extremely complicated, and the equipment is also large and expensive. Furthermore, the electrostatic recording method uses a multi-stylus head to create an electrostatic latent image in accordance with the image signal on the electrostatic recording paper that comes into contact with it, and develops it in the same manner as in the electrophotographic method, which is then developed for each color. The complexity of the process is similar to that of electrophotography, and it is difficult to miniaturize the device.

On the other hand, the thermal transfer recording method heats an ink cartridge in which a heat-melting solid ink layer containing a coloring material is provided on a base film such as paper or resin using a thermal head that is energized in accordance with an image signal. The ink layer is melted, brought into contact, and transferred onto plain recording paper, and does not require development or fixing, so the process is simple and the device can be made smaller. To perform color recording using this method, as shown in Figure 5, Inkligen A, which has an ink layer divided into bands of cyan, magenta, yellow, or additionally black, is used, and the same color is used for each color. Repeatedly scan the recording paper. This is generally called a field sequential recording method, and the methods shown in FIG. 6 and the method shown in FIG. 7 are conventionally known for conveying the recording paper for this purpose. The method shown in FIG. 6 uses a platen roller 101 and a pinch roller 10 connected to a stepping motor (not shown) to record one color, for example, cyan.
2 and the feed roller 103 cooperating with the recording paper 1.
04 and conveys the ink ribbon A at the same speed as the recording paper 104 by a conveying device (not shown), the thermal head 105 cooperates with the platen 101 to bring the recording paper 104 and the ink ribbon A into close contact with each other under pressure. A color image is obtained on the recording paper 104 by selective energization according to an image signal, and when recording of one color is completed, the platen roller 101 and the thermal head 105 are separated by means not shown, and the feed roller 103 is separated. The recording paper 104 is rotated in the opposite direction until the leading edge of the recording paper 104 reaches the vicinity of the thermal head 105. During this time, the ink ribbon A is conveyed in the same direction as during recording until the next color to be recorded, for example magenta, reaches the recording position of the thermal head 105. After that,
The platen roller 101 and the thermal head 105 are brought into pressure contact, the recording paper 104 and the ink ribbon A are held between them, and magenta recording is started. By repeating these processes as many times as the number of colors of the ink ribbon A to be recorded, that is, three or four times, a color image is finally obtained on the recording paper 105. This method has the advantage of being able to record color images in a field-sequential manner using a relatively simple mechanism, but it requires time to return the recording paper for each color, which is a waste of time for recording. Therefore, there is a problem that the recording speed is limited and it is disadvantageous for high-speed recording. Additionally, a space may be required to temporarily accommodate the reciprocating recording paper, which is a disadvantage for downsizing the apparatus. 7th
The method shown in the figure is a step not shown.

A recording paper 202 is wound around a drum-shaped platen 201 connected to a ping motor, and a thermal head 203 is pressed through an ink ribbon A, the length of which is approximately equal to the length of the drum-shaped platen 201, to record one color. The drum-shaped platen 201 rotates once in the same direction every time, and at the same time, the ink generation A is conveyed at the same speed by a drive device (not shown) to perform color recording.
Recording of a color image is completed by four rotations. The recording paper 202 on which recording has been completed is peeled off from the drum-shaped platen 201 and taken out. This method has the advantage of increasing speed because it can minimize the wasted time that is not directly involved in recording due to the reciprocation of the recording paper as in the method shown in FIG. 6 described above. However, it requires a complicated mechanism for winding and peeling the recording paper around a drum-shaped platen, the use of a specially shaped thermal head, and the time required to record one page regardless of the paper size. is constant; in other words, the disadvantage of this method is that it cannot take advantage of the advantage of being suitable for high speeds with short recording paper. In addition, the drum-shaped platen has a large diameter, which is disadvantageous in reducing the size of the device and requires a large rotational driving force.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a color recording apparatus using a thermal transfer recording method, which eliminates the drawbacks of the conventional apparatus and is capable of performing color image recording in a field-sequential manner at high speed.

Another object is to provide a small, inexpensive color recording device constructed without using a specially shaped thermal head.

Still another object is to provide a color image recording apparatus that can always minimize wasted time not involved in recording, regardless of the size of the recording paper.

[Summary of the invention]

In the present invention, a recording paper feeding path that guides the single sheet recording paper from the recording paper storage section to the line scanning type thermal head, a recording paper ejection path that guides the recording paper from the thermal head to the outside of the apparatus, and an inlet for the recording paper ejection path are provided. the exit facing the recording paper feed path,
A recording paper circulation path is formed in which the recording paper sent out from the thermal head is selectively taken in and the recording paper is fed again to the thermal head, and the recording paper is conveyed through these paths to color the recording paper. The above object is achieved by circulating the ink ribbon over the thermal head several times, melting and adhering the solid ink of each color of the ink ribbon to the recording paper one after another by the thermal head, and ejecting the recording paper from the apparatus.

[Embodiments of the invention]

The present invention will be described below with reference to embodiments shown in the drawings.

FIG. 1 shows a color facsimile receiving device as a recording device.

In this device, a recording unit 10 is located in the center of a housing 1, a recording paper storage unit 2o is located on the right side, and a paper ejection tray 2 integrally formed with the housing 1 is located in the upper part. . In this apparatus, the recording section 10. Recording paper storage section 2
A recording paper transport system 30 is arranged in a space surrounded by the recording paper storage section 2o and the paper discharge tray 2, an ink ribbon transport system 60 is arranged in the space below the recording section 10, and a control system 90 is arranged in the space below the recording paper storage section 2o. It is located.

Recording Wxo goes to platen roller 11 and heat sensitive.

12. Platen roller 11
is a rubber four-wheeler having a metal ring 11& in the center, whose shaft 11& is supported by the frames 3, 4 (see Figures 2 and 3) of the housing 1, and is rotationally driven by a stepping motor 13. In addition, the thermal head 12 has a number of minute heat-generating resistors at a predetermined density (N, for example, 16 pieces/l) corresponding to the recording width (for example, 216 lines equivalent to A4 size).
3,456 pieces) - Arranged in a row and energized according to the image information to be recorded, the temperature of the contacting ink cartridge is raised minutely locally, melting the solid ink layer and transferring it to the recording paper. It has the function of forming a visible image, and is a spindle fixed to the frames 3 and 4 of the housing 1! 4 as a fulcrum, and is biased by a leaf spring 15 and pressed against the platen roller 11 to generate the optimum pressure for recording.

The recording paper storage section 20 has a paper feed cassette 21 loaded into the housing 1 . A plate 23 on which single sheet recording papers 22 are stacked is housed at the bottom of the paper feed cassette 21, and this grate 23 is urged upward by a spring 24.

a recording paper feeding path 31 that guides the recording paper 2 to the recording section 10;
2 from the recording unit 20 to the paper ejection tray 2, and an entrance 33a facing the recording paper ejection path 32,
The outlet 33b faces the recording paper feeding path 31, and the recording paper circulation path 33 is formed in a loop shape as a whole. A recording paper transport means 36 consisting of a feed roller 34 and a pinch roller 35 is disposed in the recording paper feeding path 31 and the recording paper circulation path 33.
A recording paper transport means 39 consisting of four feed rollers 37 and a pinch roller 38 is disposed at the recording paper storage section 20, and a feed roller 40 is further disposed above the paper feed cassette 21 of the recording paper storage section 20.

The shaft 34 & of the feed roller 34 of the conveying means 36 is connected to the stepping motor 13 which rotationally drives the platen roller 11.
The feed roller 34 is rotated together with the platen roller 11 by the stepping motor 13 . In addition, the pinch roller 3 of the conveying means 36
The shafts 35& of 5 are supported by the housing frames 3 and 4 so that the pinch roller 35 moves toward and away from the feed roller 34. Furthermore, on the shaft 351 of the pinch roller 35,
One end of the spring 41 is in contact with the other end of the spring 41, and a granger 42m of the electromagnetic solenoid 42 is in contact with the other end of the spring 41. The electromagnetic solenoid 42 is energized to project the plunger 42a, thereby increasing the biasing force of the spring 41, and demagnetized to weaken the biasing force of the spring 41. That is, in this conveying means 36, the pressure contact force of the pinch roller 35 against the feed roller 34 is changed in two stages by the electromagnetic lens 42.

Further, a feed roller 40 disposed in the recording paper storage section 20
The shaft 40m is connected to the stepping motor 43, and the feed roller 40 is connected to the stepping motor 43.
Rotationally driven by 3.

The shaft 40m of the feed roller 40 is supported by the housing frames 3 and 4 so as to be movable in the vertical direction. moreover,
One end of a spring 44 is in contact with the shaft 40a of the feed roller 40, and an electromagnetic solenoid 45 is connected to the other end of the spring 44.
The plunger 45a is in contact with the plunger 45a. The electromagnetic lens 45 is energized to project the plunger 42m, thereby increasing the biasing force of the spring 44, and demagnetized to weaken the biasing force of the spring 44. That is, the feed roller 40
is pressed against the recording paper 22 in the paper feed cassette 21 by the biasing force of the spring 44, and the pressure contact force is changed in two stages by the electromagnetic solenoid 45.

Further, the recording paper conveyance system 30 includes a recording paper aligning means 46 in the recording paper feeding path 31 for adjusting the posture of the recording paper 22 and timing the feeding of the recording paper to the recording section 10. This recording paper aligning means 46 has a flapper 47 disposed on the downstream side and a recording paper detector 48 on the upstream side, sandwiching the conveying means 36 disposed in the recording paper feeding path 31. Furano 4
47 is disposed near the feed roller 34 by a shaft 471, is biased by a spring 49, and is positioned in a position that does not interfere with the advance of the recording paper 22, as shown by the solid line. Further, a granger 50a of an electromagnetic solenoid 50 is locked to this flapper 47, and this flapper 4'47 is positioned within the recording paper feeding path 31 as shown by the broken line by energizing the electromagnetic solenoid. Ru. The recording paper detector 48 is provided with a light emitting element 48a and a light receiving element 48b sandwiching the recording paper feeding path 31, and these elements 48a.

It is detected that the leading edge of the recording paper 22 has reached the space 48b, and thereby the electromagnetic solenoid 50 is energized.

Incidentally, the demagnetization of this electromagnetic lens 50 is performed using the increment method described later. This is done based on the signal from the main detector.

Furthermore, this recording paper conveyance system 30 includes a recording paper ejection path 3.
2 and the recording paper circulation path 33 are provided with a path switching means 51. This course switching means 51 is a Furano 952
The flanno 452 is rotatably arranged around a shaft 52m. This hula /452 is the spring 53
It is positioned so as to close the recording paper ejection path 32 and open the entrance 33m of the recording paper circulation path 330, as shown by the solid line. Further, a plunger 54& of an electromagnetic solenoid 54 is locked to this plunger 52,
By energizing the electromagnetic solenoid 54, the flannel 452 moves the recording paper ejection path 32 as shown by the broken line.
is opened, and the inlet 33& of the recording paper circulation path 33 is closed.

In addition, the ink cartridge conveying system 60 has 76 ink cartridges.
1, the platen roller 11 of the recording section 10 and the thermal head 1
It is conveyed through two spaces.

Inkligen 61 uses a one-sided sequential method to coat a base film such as paper or resin with a heat-melting solid ink layer containing a coloring material corresponding to the color to be recorded, each layer having a length slightly longer than the maximum recording length. For example, as shown in FIG. Slightly large. This ink ribbon 61 is wound around a supply roll 62 and taken up by a take-up roll 63. And supply roll 6
2 and the take-up roll 63 are housed in a cassette case 64 (see FIGS. 2 and 3). The supply roll 62 and take-up roll 63 in this cassette case 64 are connected to the housing frame 3, as shown in FIGS.
4 is loaded.

The housing frames 3 and 4 each have two shafts 65 and 66°67.
．． 68 are implanted, and reels 69,
70.71 and 72 are loosely fitted stones.

Among these reels, the glue reel 69 on the housing frame 3 side
．． 70 has one or more protrusions 69a at its end.

70a, and grooves 62a in which the protrusions 69m and 70m are formed on the end faces of the supply roll 62 and the take-up roll 63.
, 63m, thereby locking the supply roll 62 and take-up roll 63 to the reel 69.70. Sixth, the shaft 65 between the reels 69 and 70 and the housing frame 3
．． Joint members 73 and 74 are loosely fitted to 66. The joint members 73, 74 are provided with disks 73m and 74a at one end, and fringe plates 73b and 74b are attached to the disks. The joint members 73 and 74 are biased to the right in FIGS. 2 and 3 by compression coil springs 75 and 76 disposed between the joint member and the housing frame 3, and the Explosive play) 73b, 74
The reel 69°70 is brought into pressure contact with the supply roll 62 and the take-up roll 63 via b. On the other hand, reel 71.7
2 is biased to the left in FIGS. 2 and 3 by compression coil springs 77' and 78 interposed between the reel and the housing frame 4, and the end surfaces of the reels 71 and 72 are is pressed against the end surfaces of the supply roll 62 and the take-up roll 63. Further, in such a front ink ribbon holding means, a tin rocket 79 is fixed to the joint member 74 on the take-up roll 63 side. And this tin rocket 79
1 is an unillustrated part of the stepping motor 80 shown in FIG.

are linked to each other via a chain.

As shown in FIG. 1, the ink ribbon 61 wound around the power supply roll 62 and the take-up roll 63 is in contact with the idler 81, and the platen roller 11 and the thermal head 1 are in contact with each other.
2 and is arranged so as to be in contact with the guide/S-82.

Further, the ink ribbon transport system 60 includes an ink ribbon 6
An ink ribbon detector 83 is provided for detecting the position of one color. This ink ribbon detector 83 has a light emitting element 83& and a light receiving element 83b arranged between the ink ribbon 61, and the ink ribbon 61 is disposed between these elements 83m and 83b.
It detects that the leading edge of each color divided into 1 has arrived, and uses that signal to demagnetize the electromagnetic solenoid 50 of the recording paper aligning means 46 in the recording paper transport system 30 described above.

Further, the control system 90 described above, as shown in FIG.
Equipped with an electronic circuit and a power supply circuit to operate the recording device, it controls the connection to a color facsimile transmitter placed in a remote location via a transmission line according to a prescribed procedure, and inputs facsimile signals. Line control section 91
, a method 92 for detecting and demodulating the facsimile signal to obtain code data, and operation 1? based on the code data. a system control unit 93 that mainly includes a microprocessor that controls the entire device including the channel; a decoding unit 94 that restores image signals to be recorded from encoded data according to a predetermined method procedure; a color conversion circuit 95 for converting into a recording signal of a recording control unit 97 that includes control of the arm width of the current application to the body;
It also includes a mechanism control section 98 that controls motors, solenoids, various detectors, etc., and a power source 99 that supplies various voltages and currents necessary for the operation of electronic circuits, thermal heads, Tanabata solenoids, etc. .

The operation of the color facsimile receiving apparatus will be explained below.

First, a facsimile signal containing color information is sent from a color facsimile transmitter located at a remote location via a transmission line.
It is received through the circuit control section 91 of the electronic circuit having the professional configuration shown in FIG. Image signals separated into color prints, such as the following, are stored in the page memory 96. Based on the control signal from the system control unit 93, the mechanism control unit 98 functions, the motor 43 starts rotating, the feed roller 40 connected to the motor 43 also rotates, and the sheets are stacked in the paper feed cassette 21. Recording paper 22
One sheet of the top layer is taken out using the difference in the coefficient of friction between the recording paper/rubber feed roller and the recording paper, and guided to the recording paper feeding path 31. Then, when the leading edge of the recording paper 22 is detected by the recording paper detector 48, the Furano-J? 47 as shown by the broken line in the figure, and close the stem, ping motor 13 and motor 8.
0 at a predetermined speed. The recording paper 22 is then bitten into and fed by the feed roller 34 and the pinch roller 35, but as monitored by the system control unit 93, just before it reaches the flattened flap 947 whose leading end is closed, the recording paper 22 is again bitten by the mechanism control unit 93.
8, the electromagnetic solenoid 42 is energized, and the pinch roller 3
5 to the feed roller 34 is weakened. at the same time,
Similarly, by energizing the electromagnetic solenoid 45, the shift feed roller 40 is also lifted upward. Thus, recording paper 2
The feed roller 2 is fed by the weak frictional force between the feed roller 34 and the feed roller 40, which are still rotating, and soon its tip abuts against the flapper 47 and stops. A feed roller 34 that acts on the recording paper 22 whose feeding has been stopped.
Since the frictional force between the feed roller 40 and the feed roller 40 is weak, there will be no scratches or scratches at the contact portion, and the recording paper 22 will not buckle.

On the other hand, since the platen roller 11 is connected to the stepping motor 13, it rotates at the same circumferential speed like the feeder 34, and as described above, prints the ink ring 61, which is divided into yellow, magenta, and cyan colors, for example. It is fed by being held between the thermal head 12 which is biased upward in the figure by a leaf spring 15.

At this time, the winding roll 6 connected to the rotating motor 80
3 rotates while sliding at a friction joint 74. Also,
Since the supply roll 62 is similarly braked by the friction joint 73, the incremental member 61 is fed at a speed equal to the circumferential speed of the platen row 211 while maintaining a predetermined tension. Then, the ink IJ and yin detector 83 detects the tip of the first color of the ink ribbon to be printed, for example, the beginning of yellow, using a field sequential method. This detection signal is sent to the system control 93 and starts timing. After a predetermined period of time while continuing to feed the increment 61, the system control unit 93
issues a control signal, demagnetizes the electromagnetic solenoid 50 of the recording paper aligning means 46 via the mechanism control section 98, and activates the flapper 47.
At the same time, the electromagnetic lens 4 of the recording paper conveying means 36 opens.
2 is also demagnetized and the pinch roller 35 is strongly pressed against the feed roller 34.

Therefore, the recording paper 22, which had been stopped with its leading edge hitting the seventh needle 947, starts feeding again. Then, the leading edge of the recording paper 22 is moved to the rotating platen roller 1.
1 and the increment 61 being fed. The above-mentioned predetermined time is determined so that the leading edge of the recording paper 22 and the yellow start portions t and b of the increment 61 coincide and overlap. The leading edge of the recording paper 22 and the beginning of the yellow color of the increment 61, which are aligned and overlapped in this way, are placed directly above or slightly beyond the heating resistor array of the thermal head 120 under the control of the system control section 93 described above. Among the image signals separated into three or four colors stored in the page memory 96, the image signal corresponding to yellow color is first read out and sent to the thermal radar 12. Then, a driver mounted on the thermal head 12 heats the heating resistor to melt the yellow solid ink layer of the increment 61 and transfer it to the recording paper 22 that is pressed against it to record a yellow image. The recording paper 22 and the increment 61 are fed by the platen roller 11 while recording is successively performed at each scanning pitch as described above so that they are in close contact with each other so that no misalignment occurs. After recording, the recording paper 22 and the increment 61 that remain in close contact with each other are fed as they are, and then the paper 22 and the increment 61 are moved to the ID/7-82.
reach. At this point, the ink ribbon 61 is suddenly rotated, but the recording paper 22 tries to move straight due to its rigidity, and is separated from the ink IJ and ln 61. The separated recording paper 22 is guided by the flyer 52 and enters the upper part of the figure, that is, the recording paper circulation path 33. As the yellow recording progresses, the recording paper 22 moves to the platen roller IIK.
Feed roller 3 whose circumferential speed is equal and rotates synchronously
The recording paper is conveyed through a recording paper circulation path 33 by a recording paper conveying means 36 consisting of a recording paper 4 and a pinch roller 35. And recording paper 22
When the leading edge of the recording paper is detected by the recording paper detector 48, the recording paper is sent out in the same way as when unrecorded recording paper is fed as described above. 47' is closed, and the electromagnetic solenoid 42 is energized to weaken the pressing force of the pinch roller 35 against the feed roller 34. Thereafter, the recording paper 22 is fed by the weak frictional force of the feed roller, and when its leading edge abuts against the seven flaps 47, it stops at the ζ roller. Note that when the pinch roller separates, recording in yellow has been completed, and the rear end of the recording paper 22 has sufficiently escaped from the platen roller 11.

On the other hand, the increment 61 is still fed, and when the ink ribbon detector 83 detects the starting edge of the next recording color, for example, magenta, the electromagnetic solenoid 50 of the recording paper aligning means 46 is demagnetized by the signal, and the ink ribbon detector 83 detects the starting edge of the next recording color, for example, magenta. 47, each electromagnetic solenoid 4 of the recording paper conveyance means 36 is opened.
2 are also demagnetized and all the pinch rollers 35 are brought into strong pressure contact with the respective feed rollers 34, and feeding of the recording paper 22 is restarted.

Then, when the leading edge of the recording paper reaches the heating resistor array of the thermal head 12, magenta recording is started in the same way as yellow recording. Thereafter, magenta and then cyan are recorded using the same process as the yellow recording. When recording of the last color, for example cyan, is started by the thermal head 12, the electromagnetic solenoid 5 of the path switching means 51 is activated.
4 is excited, and K and 7 Ratsuno 52 operate so as to be in the position shown by the broken line in the figure.

Further, the feed roller 37 starts rotating by a motor (not shown). However, the recording paper 22 on which recording of all colors has been completed is fed while being in close contact with the ink ribbon 61. Then, as described in the case of yellow color recording, the ink ribbon 61 is rapidly rotated by the idler 82, so that the recording paper 22 is peeled off. y7J? 52 and enters the recording paper ejection path 32. After that, the recording paper 22
Due to the cooperative action of the feed roller 37 and the pinch roller 38, the recorded paper is fed through the brass paper discharge path 32, discharged, and placed on the tray 2.

Note that after the last color recording is completed and a predetermined time has elapsed, that is, when the rear end of the recording paper 22 passes the flapper 52, the stepping motor 13 and the motor 80 stop rotating based on a command from the system control unit 930, and the flattening The rotation operations of the roll 11 and the feed roller 340 are also stopped, and the feeding of the ink ribbon 61 is also stopped. On the other hand, when the recording paper 22 on which color recording has been completed is discharged onto the tray 2, the tanabata (not shown) also stops rotating, and therefore the rotation of the feed roller 37 also stops.

With the above steps, the receiving and recording operation for one letter in color facsimile communication is completed.

Although I did not explain the details of color recording, color reproduction in thermal transfer recording is performed by subtractive color mixing, and when using the three colors yellow, magenta, and cyan as the colors of the solid ink layer of the ink ribbon, In addition to white, eight colors can be reproduced and recorded.

Furthermore, if gradation recording is performed using a pseudo halftone recording method such as the density pattern method, a large number of colors can be reproduced even with the three-color ink ribbon, and 6D, the color recording apparatus described in detail of the present invention, can reproduce many colors. can also be preferably applied to the color reproduction recording of the above-mentioned collapse.

Note that the recording paper conveying means 36°39 shown in the above embodiment,
Each mechanism of the recording paper aligning means 46 and the path switching means 51 is -
These are merely examples, and it goes without saying that similar effects can be obtained by other mechanisms. In addition, each controlled element in the above embodiment, such as the stepping motor 13, 80° 43, the electromagnetic solenoid 42, 45,
The operating timings such as 50 and 54 are not limited to the above embodiments.

In the above embodiment, a facsimile machine has been described, but it goes without saying that the present invention can also be applied to other recording apparatuses, such as printers.

〔Effect of the invention〕

As explained above in detail, according to the present invention, the recording paper is fed to the recording section along the recording paper circulation path for each recording of one color in the field sequential color recording system. This has the advantage that the wasted time required for the above-mentioned reciprocating movement of the recording paper can be minimized, and therefore color recording can be performed at high speed.

Also, since recording is performed using a small diameter platen roller,
Similarly, there is no need for a specially shaped thermal head unlike the conventional drum platen method that circulates the recording paper, and furthermore, the recording paper can be wound around the drum-shaped platen in just 10 minutes.
There is no need for a complicated mechanism for peeling, and the device is small and
It has the advantage of being inexpensive to configure.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view conceptually showing a color recording device according to the present invention, Fig. 2 is a cross-sectional view showing a structure for holding an inkliden supply roll, and Fig. 3 is a cross-sectional view showing a structure for holding an inkligen take-up roll. FIG. 4 is a cross-sectional view showing the structure, FIG. 4 is a professional diagram showing the control system of the color recording device according to the present invention, and FIG. 5 is a part of a conventional color recording ink ribbon. The plan view, FIGS. 6 and 7 are conceptual diagrams showing a conventional color recording system. DESCRIPTION OF SYMBOLS 1...Device housing, 2... Paper discharge tray, 10... Recording part. DESCRIPTION OF SYMBOLS 11...Platen roller, 12...Line scanning type thermal head, Work 3...Stepping motor, 20...
Recording paper storage unit, 22... Single sheet recording paper, 30... Recording paper transport system, 31... Recording paper feeding path, 32... Recording paper ejection path, 33... Recording paper circulation path. 33m...Entrance,
33b...Exit, 36.39...Recording paper conveyance means,
51... Course switching means, 60... Incremental? 61... Ink ribbon, 62... Supply roll,
63... Winding roll, 80... Motor, 90...
control system. 2nd cause 3rd cause Figure 7

Claims (1)

[Claims] A line scanning thermal head, single sheet recording paper, a recording paper accommodating section for stacking and accommodating the recording paper, a recording paper feeding path for guiding the recording paper in the recording paper accommodating section to the thermal head, and a recording paper feeding path for guiding the recording paper in the recording paper accommodating section to the thermal head; a recording paper ejection path that guides the thermal head out of the apparatus;
a recording paper circulation path having an entrance facing the recording paper ejection path and an exit facing the recording paper feeding path, for circulating and guiding the recording paper in the recording paper ejection path to the recording paper feeding path; a path switching means disposed at the entrance of the paper circulation path for selectively guiding the recording paper to the recording paper circulation path; A recording paper transporting means for transporting paper, a color ink ribbon formed by applying solid ink layers of a plurality of colors in strips, and an ink ribbon transporting means for transporting the ink ribbon, from the recording paper storage section to The fed recording paper is circulated over the thermal head for the number of times it is colored, and the solid ink of each color of the ink ribbon is melted and adhered to the recording paper one after the other, and the recording paper is discharged from the apparatus. Characteristic color recording device.