JPH03175073A - Recording paper ejection mechanism of thermal transfer recording device - Google Patents

Abstract

PURPOSE:To automatically discharge a recording sheet with an inexpensive structure for sharing a motor by guiding to feed the sheet to a sheet discharge roller when a mechanism is mode-switched by a first motor, and driving a second motor to discharge the roller to a predetermined position. CONSTITUTION:If motor 9 is rotated in a recording sheet discharge mode, a chuck arm 5 is engaged with a connector 83b of a takeup side guide 83. Accord ingly, the protrusion 5b of the arm 5 is made to abut on the outer periphery of a protrusion rib 1d of a platen roller 1 to maintain a gap between the roller 1 and the arm constant, and the sheet 3 is conveyed by the roller 1 by means of pressing force of a thermal head 10 to a discharge port 83a of the guide. The motor 9 is further rotated to make the sheet 3 abut on a rubber roller 36b at the center of a feed roller 36, conveyed until it is engaged with a rotating roller 89, and the motor 9 is stopped. In the case of detecting the position of the sheet 3, the rotation of a slip plate 11 attached to the motor 9 is sensed by a sensor 13 to be easily executed by a drive circuit.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a thermal transfer type recording device, and particularly to a recording paper discharge mechanism suitable for automatically discharging the recording paper after printing out of the device.

[Conventional technology]

A thermal transfer recording device records on the recording paper by stacking ink paper and recording paper with the ink paper facing outward, pressing the paper against a platen roller, and heating the ink paper using a thermal head. It is.

As described in Japanese Utility Model Application Publication No. 62-109953, conventional thermal transfer recording apparatuses have a structure in which recording paper is manually inserted from the front of the apparatus and discharged onto the surface of the apparatus after recording. It became.

[Problem to be solved by the invention]

The above-mentioned conventional technology does not take into account the ease of handling the ink paper, and has the problem that the ink paper must be replaced from the side of the apparatus, making it difficult to store it in a rack or the like. or,
In some devices, in order to solve the above problem, a mechanism is placed at a position rotated 90 degrees from the device so that the ink paper can be replaced from the front of the device, and the recording paper after printing is ejected by a special motor. Although some devices have such a configuration, they require an expensive motor exclusively for paper ejection and increase the size of the motor heel drive circuit, leading to an increase in the price of the device.

An object of the present invention is to eliminate the above-mentioned drawbacks of the conventional technology, and to provide a paper ejecting mechanism that can automatically eject the recording paper with an inexpensive configuration that shares the active platen roller and the motor for controlling the mechanism position. An object of the present invention is to provide a thermal transfer recording device.

[Means to solve the problem]

The above purpose is to detect the position of the recording paper, and then use the first motor to control the position of the mechanism, such as raising and lowering the thermal head, to guide and transfer the recording paper to the paper ejection roller section when performing the mode switching operation of the mechanism. After that, the second motor that rotates the platen roller or the like is operated, and the paper is discharged to a predetermined position by the paper discharge roller.

[Effect]

After detecting the position of the recording paper, the recording paper is guided and conveyed to the paper ejection roller section for ejecting the recording paper by using the mechanism mode switching operation by the mechanism position control motor. This eliminates the need for the system and allows for significant cost reductions in both the mechanism and the circuit.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 4 are configuration diagrams showing a platen roller around which a recording paper of a thermal transfer recording device is wound.

The platen roller 1 is formed by fixing and molding a rubber material into a cylindrical shape on the core 1a, and a shaft 2 serving as a rotating shaft is fixed to the core 1a.The platen roller 1 is attached to both sides of the core 1a.

A circular convex rib 1d is provided, and a cutout portion 1 is formed by cutting out a portion toward the rotation center of the platen roller 1.
b is also popular in opposition. Further, a press-fit hole 1c having a certain depth is provided on the surface of the notch 1b. A stopper 4, which is a recording paper positioning member fixed in the press-fit hole 1c, protrudes from the outer periphery of the platen roller 1 and is attached to opposite sides of the platen roller 1. A pair of stoppers 4
The chuck arm 5, which is a recording paper fixing member that presses the end of the recording paper 3 having a width that contacts the outer periphery of the platen roller 1 along the direction of the shaft 2, has a groove 5a and a notch that fit into the shaft 2. A protrusion 5b that fits into the portion 1b is provided on each side, and a spring 6 is attached to the platen roller 1 in a U-shape via the shaft 2, as shown in FIG.
The structure is movable in the direction of the center of rotation. Steps 2a are formed at both ends of the shaft 2 to position the chuck arm 5 in the thrust direction.

Next, the structure of a thermal transfer recording apparatus as an embodiment of the present invention will be explained with reference to FIGS. 5 to 9.

Fig. 5 is a schematic top view of the thermal transfer recording device, Fig. 6 is a front view of the gear block that is the power source of the rotation system, Fig. 7 is a front view showing the drive system of the device, and Fig. 8 is the drive system gear. FIG. 9 is a schematic front view of the device.

The platen roller 1 is rotatably supported between the chassis 7a and 7b using a shaft 2 as a rotating shaft, and at one end of the shaft 2, a platen gear 8 for transmitting rotation is connected to a large gear 8a and a small gear 8.
It is fixed with the two-stage gear configuration shown in b. The motor 9, which serves as the power source of the rotating system, is fixed to a sub-chassis 10 attached to the chassis 7b using a claw part 10a, and a slit plate 11 having slits at equal intervals is fixed to one rotating shaft.
The configuration is such that a drive circuit (not shown) controls the rotation speed using a sensor 13 attached to the sub-chassis 10. The slit plate 11 and the worm gear 12 are connected so that the rotational force of the motor 9 can be transmitted. sub chassis 10
A shaft 4, a shaft 15, a shaft 16, a shaft 17, a shaft 18, and a shaft 19 are installed on the top, and each has a worm wheel gear 20, a first intermediate gear 21, an ink paper winding reel stand 22, and an ink paper winding reel stand 22. Feeding reel stand 23. Switching gear 24. are rotatably mounted, and a lock arm 26 is rotatably mounted. The worm wheel gear 20 is a large gear 20
a, a middle gear 20b, and a small gear 20c. It is configured to transmit the rotational driving force of the gear 20 to the ink paper take-up reel stand 22. The small gear 20c can transmit rotation by engaging with the switching gear 24. A detailed configuration diagram of the switching gear 24 is shown in FIG. The slide gear 25 fitted to the switching gear 24 via a spring 28 has the same rotation center as the switching gear 24, is slidable in the axial direction, and always rotates integrally with the switching gear 24. Slide gear 25
is composed of a two-stage gear consisting of a large gear 25a and a small gear 25b, and the large gear 8a and small gear 8b of the platen gear 8, respectively.
It is possible to engage with. A spring 2 is attached to the tip of the shaft 18.
Locking member 27 of slide gear 25 biased by 8
is fixed. The ink paper winding reel stand 22 is
It is configured to be driven by the rotational driving force transmitted from the first intermediate gear 21 using a constant friction rotational torque generated via an internal slip mechanism (not shown). Further, a reflector plate 29 for determining the rotation direction with a sensor (not shown) is provided.
Big.

Pasted with medium and small pattern pitches. The ink paper feeding reel stand 23 has a configuration in which a constant brake torque is generated by an internal slip mechanism (not shown), and a reflector plate 30 for determining whether or not it is rotating with a sensor (not shown).
are pasted in an equal pitch pattern. Here, the friction torque of the ink paper feeding reel stand 23 is set to a value lower than the friction torque of the ink paper winding reel stand 22. A lock spring 31 is stretched between the lock arm 26 and the sub-chassis 10, which engages with a lock pawl 23a fixed to the ink feeding reel stand 23. As the slide gear 25 moves in the direction of the switching gear 24, the large gear 25a moves toward the chassis 7.
The second intermediate gear 32 is engaged with a second intermediate gear 32 that is rotatably attached to a shaft (not shown) installed in the second intermediate gear 32.
Furthermore, it is configured to engage with the first stage gear 33a of a two-stage gear 33 provided in the same manner.

The pickup roller 34 is formed by fixing a rubber material on the shaft 34a so that the outer periphery thereof has an uneven shape, and is attached to the chassis 7a, 7b.
A pulley gear 35 for obtaining rotational driving force is fixed to one end of the shaft 34a.

The feed roller 36 has a cylindrical rubber roller 36b fixedly formed with protrusions at both ends in the center of a shaft 36a, and a cylindrical rubber member 36c fixedly formed on both ends thereof. Furthermore, a feed gear 37 is fixed to one end of a shaft 36a, which is rotatably supported between the chassis 7a and 7b, in a two-stage gear configuration of a large gear 37a and a small gear 37b, and is fixed to one end of the shaft 36a. Furthermore, a paper discharge gear 38 for transmitting driving force is fixedly attached. The separation roller 39 has a cylindrical rubber member 36 of the feed roller 36 on the shaft 39a.
A rubber material is fixed and molded into a cylindrical shape at a position where it can come into contact with c.

Although not shown here, the separation roller 39 is configured to be movable to the position indicated by the dotted line in FIG. 9, and is rotatably supported. At one end of the shaft 39a, there is a coupling 4 to which a constant rotational torque is applied by an internal slip mechanism (not shown).
0 is configured.

The first gear 33a of the second gear 33 is the pulley gear 3
5 is engaged, and the pulley gear 35 further transmits rotational driving force via the coupling 40 and the rubber belt 41.

The second gear 33b of the two-stage gear 33 is the feed gear 3
7 and rotates the feed roller 36. The large gear 37a of the feed gear 37 is configured to be able to engage with the small gear 25b of the slide gear 25 when the slide gear 25 moves toward the chassis 7b. The paper ejection gear 38 is connected to the chassis 7
The third intermediate gear 43 is engaged with a spur gear 43a of a third intermediate gear 43 rotatably attached to a shaft 42 erected on the shaft 42a. The third intermediate gear 43 is a two-stage gear composed of a spur gear 43a and a bevel gear 43b.

A worm gear 45 is connected to the rotating shaft of a second motor 44 for switching the operating position of the device in a configuration capable of transmitting rotation, and a large gear 46a of a reduction gear 46 rotatably attached to a shaft (not shown). The small gear 46b is rotatably mounted on a shaft 49 that is mounted on the chassis 7b.
The configuration is such that driving force is transmitted to a cam gear 47 that determines the operating position of the device. The cam gear 47 has a small gear 47
a is provided and engages with a rotary changeover switch 48.

Although not shown, the changeover switch 48 is connected to the drive circuit of the second motor 44, and switches the rotation of the motor 44 driven by each operation mode to a statement signal of a designated position. It is configured to stop when the switch 48 is switched.

The second motor 44, reduction gear 46, and changeover switch 48 are mounted on a bracket (not shown) and installed on the chassis 7b.

Although not shown, the surface of the cam gear 47 has a first groove,
A pin 5 is formed with a second groove and fits into the first groove.
0 is planted on the arm 51. The arm 51 is
It is mounted on the chassis 7b so as to be rotatable about a fulcrum 52, and a pin 53 is installed at a position that magnifies the movement of the pin 50. The pin 53 fits into an elongated hole 54a of a slider 54 that performs a device switching operation. The slider 54 has a guide shaft 55 installed on the chassis 7b.
The guide groove 54b, which fits into the guide groove 54b, allows movement on the chassis 7b in the direction of arrow A shown in FIG. The slider 54 is formed with a concavo-convex portion 54c that comes into contact with the cylindrical protrusion 26a of the lock arm 6 in order to rotate the lock arm 26. The chassis 7b has a shaft 5
6. A shaft 57 is erected, and a switching arm 55 and a platen lock arm 58 are rotatably attached, respectively, and one end of the switching arm 55 is in contact with the slide gear 25 so as to be rotatable in the direction of the shaft 18. It is.

The other end is configured to come into contact with a switching arm concave-convex portion 54d provided on the slider 54, so that the switching arm can rotate by the necessary amount.

One end of the platen lock arm 58 is provided with a protrusion that engages with the valley of the teeth of the large gear 8a, and is biased toward the large gear 8a by a platen lock spring 100 stretched between the chassis 7b. A cylindrical protrusion 58a is provided at the other end so as to come into contact with a concavo-convex portion 54e provided on the slider 54.

An arm 60 is a driving means for the chuck arm 5, which is rotatably mounted between the chassis 7b and 7a around a fulcrum 59.
It is configured to fit into a rotation hole 54f provided in 4. One end 60a and the other end 60b of the K-arm 60 are configured to abut the chuck arm 5 and release the pressing force of the chuck arm 5 depending on the position where the chuck arm 5 is stopped.

A rotation shaft 65b is rotatably passed through the drive arm 64, which has a head pin 63 that fits into the second groove of the cam gear 47, is installed on the head arm 66b, and a rotation shaft 65a is installed on the head arm 66a. It is rotatably passed through and planted on the drive arm 64. The rotation shafts 65a and 65b are rotatably supported between the chassis 7a and 7b, and the head arm 66a.

The thermal head 101 is fixed to 66b with screws 67, and a heat dissipation plate 69 is fixed on top of the thermal head 101 with screws 67. 70 is a cooling fan for the thermal head lot, which is the chassis 7a.

7b with a bracket (not shown).

A head spring 68 is stretched between the head arms 66a, 66b and the drive arm 64 for pressing the thermal head 101 against the platen roller l with a constant force.
The configuration is such that when the pressing force of the thermal head 101 is released, a portion of the drive arm 64 comes into contact with the head arms 66a and 66b.

71 is a light emitting element that emits light of a certain wavelength, 72 is a light receiving element that receives the light, and is provided at the tip of the thermal head 101.
, the structure is such that light is transmitted through the ink paper 76 wound around the feed-out rule 75.

Although not shown, the ink paper 76 is one in which three colors of ink, yellow, magenta, and cyan, are applied on a base film sequentially, so that the yellow and magenta light passes through the light emitting element 71, and the cyan is composed of components that do not pass through.

When the ink paper cartridge 73 is installed in the apparatus, the take-up reel 74 and the feeding reel 75 are connected to the ink paper winding reel stand 22 and the ink paper feeding reel 75 from the hole (not shown) 12 formed in the ink paper cartridge 73. reel stand 23
and are configured to be rotationally coupled by engaging with each other.

77 and 78 are switches for detecting the external shape of the ink paper cartridge 73, and are used to determine whether or not there is an ink paper cartridge in the device, or when the ink paper cartridge 73 is wrapped with ink paper 76 having different characteristics. By partially changing the external shape and detecting it with switches 77 and 78, a control circuit (not shown) selects printing conditions that match the characteristics of the ink paper.

Sensors 79 and 80 detect the position of the platen roller 1, and are arranged to detect a detection section (not shown) provided on the platen gear 8.

Reference numeral 81 denotes a guide on the feeding side when the ink paper cartridge 73 is installed, and it partially guides the recording paper 3 along the outer periphery of the platen roller 1.
The shape is designed to guide you.

82 is a guide for conveying the recording paper 3, and the sensor 102 that determines whether the recording paper 3 has been conveyed is placed in front of the position where the recording paper 3 and the bar 4 contact each other during paper feeding. installed.

83 is a guide on the winding side of the ink paper cartridge 73;
A discharge port 83a is provided for discharging the recording paper 3, and a guide portion is formed when the recording paper 3 is fed and transported by the platen roller 1. Furthermore, when the chuck arm 5 is pushed up from the platen roller 1 when the recording paper 3 is ejected, an engaging portion 83b is provided in which the winding side guide 83 and the chuck arm 5 engage with each other. The feeding side guide 81, 111, the feeding guide 82, and the winding side guide 83 are provided and fixed between the chassis 7a and 7b, respectively.

An upper guide member 84 and a lower guide member 85 for guiding the ejected recording paper 3 are combined and provided between the chassis 7a and 7b. A shaft 86 is installed in the lower guide member 85 so that the paper discharge rotating arm 103 can rotate, and the slider 54
The configuration is such that it comes into contact with the. A torsion spring 99 is provided between the paper ejection rotation arm 87 and the lower guide member 85 to suspend the paper ejection rotation arm 103.

between the upper guide member 84 and the lower guide member 85.

A pair of rotating arms 86° 87 for changing the ejection direction of the recording paper 3
A hole 84a drilled in the upper guide member 84 and a hole (not shown) bored in the lower guide member 85 opposite to the hole 84a.
are rotatably fitted to each other.

Further, gear portions 86a and 87a are configured to engage with each other.

One rotating arm 86 is provided with a cylindrical portion 86b that can come into contact with the paper discharge rotating arm 103, and an arm spring 86 is provided between it and a hook portion 85a provided on the lower guide member 85.
8 is hung.

A spring member 90 is fixed to the upper guide member 84, which contacts the central roller 36b of the feed roller 36 (applies a contact force to the rotating roller 89), and a shaft 91a of the ejection roller 91 that ejects the recording paper 3 from the apparatus. is attached as a rotatable configuration.A bulky gear 92 is fixed to one end of the shaft 91a and engages with the bulky gear 43b of the third intermediate gear 43, converting the rotation axis by 90" to generate rotational peak power. Communicate.

The auxiliary roller 93 that rotates in contact with the paper ejection roller 91 is configured to obtain a contact force from a leaf spring 94 provided on the lower guide member 85.

95 is the recording paper 3 discharged between the upper and lower guide members 84 and 85.
This is a sensor that detects this and is attached to the lower guide member 85.

96 is a tray for the recording paper 3, 97 is a switch for detecting the presence or absence of the tray 96, and 98 is a sensor for determining the presence or absence of the recording paper 3, determining double feeding, and determining the type.

Next, the operation of one embodiment of the present invention will be described.

To perform a printing operation, first load the ink paper cartridge 73 and recording paper tray shown in FIG. It will be in a standby state. Next, when a print button (not shown) is pressed, the second motor 44 shown in FIGS. 5 and 7 rotates, and the cam gear 47 rotates via the reduction gear 46.

At this time, when the changeover switch 48 is switched to the paper feeding mode position, the motor 44 is stopped and raised. With this operation, the arm 51 shown in FIG. 7 rotates to the left, and the slider 54
move. Due to the movement of the slider 54, the feeding side reel stand 23 is fixed by the lock pawl 23a and the lock arm 26, and the platen roller is fixed by the platen gear large gear 8a and the platen lock arm 58 so that it does not rotate when the recording paper 3 comes into contact with the stopper 4. engaged and fixed, slide gear 2
5, when the switching arm 55 rotates in the direction of the arrow in FIG. 8 and moves to the position indicated by the dotted line, the large gear 25a engages with the second intermediate gear 32, and the small gear 25b does not engage with any gear. . Therefore, the rotation transmission system of the platen roller is cut off. In addition, the slider 54 rotates the paper discharge rotation arm 103 in the direction of arrow B, and the rotation arm 86° 87 shown in FIG. The arm 60 rotates so that one end 60a of the arm 60 comes into contact with the chuck arm 5, causing the chuck arm 5 to float above the outer periphery of the platen roller 1. Although not shown, the tray 96 also works in conjunction with the slider 54.
The recording paper 3 inside is pressed against the pickup roller 34 only in the paper feeding mode.

Next, in the above paper feeding state, the motor 9 is rotated to feed the recording paper 3.
is guided between the outer periphery of the platen roller 1 and the chuck arm 5 by the conveying guide 82 and brought into contact with the stopper 4, thereby positioning it with respect to the platen roller 1. The apparatus in this state is shown in FIG. 9, and a detailed view of the chuck arm 5 and recording paper 3 at this time is shown in FIG.

Here, the judgment as to whether the recording paper 3 has come into contact with the stopper 4 is as follows:
After the sensor 102 detects the recording paper 3,
This can be easily done by driving a control circuit (not shown) of the motor 9, taking into consideration the time required for the motor 9 to come into contact with the motor 4.

When the recording paper 3 and the stopper 4 come into contact, the motor 9 stops and the second motor 47 rotates. This moves from the paper feeding mode to the ink paper initialization mode in the same manner as the above operation.

This operation moves the slider 54 to the right in FIG. 7, and in the ink paper initialization mode, the lock arm 2
6 rotates to release the fixation of the feeding reel stand 23,
The platen roller is in a fixed state as in the paper feed mode, the slide gear 25 is in a fixed state as in the paper feed mode, and the paper discharge rotating arm 103 is released from contact with the slider 54 and the torsion spring 9 is released.
The biasing force of 9 is applied to the arm spring 88 and rotates in the direction C in FIG. The recording paper 3 is rotated to a position where they do not touch each other, and the recording paper 3 is fixed on the outer periphery of the platen roller 1 using the chuck arm 5. Furthermore, the drive arm 64 is rotated by the second groove of the cam gear 47, and the thermal head 101 is lowered to the dotted line position in FIG.

When the motor 9 is next rotated in the above ink paper initialization mode state, the slip torque of the ink paper take-up reel stand 22 is greater than the brake torque of the ink paper feed reel stand 23, so the ink paper 76 is moved to the take-up reel 74. It is wound up.

At this time, the light from the light emitting element 71 is received by the light receiving element 72 through the ink paper 76 to detect the border between yellow and cyan, which have different light transmittances, and cue the yellow for the -th color.

When the cueing is completed, the motor 9 stops and the second motor 47 rotates. As a result, the ink paper initialization mode is moved to the recording paper conveyance mode in the same manner as the above operation. At this time, the slider 54 moves, and in the recording paper transport mode, the lock arm 26 fixes the feeding reel stand 23, and the platen lock arm 58 moves the platen gear large gear 8.
a is released, and the slide gear 25 is moved between the spring 2 and the part 54d of the slider 54 that the switching arm 55 is in contact with.
8, the large gear 25a is the platen gear small gear 8.
b and the second intermediate gear, and the small gear 25b is not engaged with any gear. The paper discharge rotating arm i03ζ, the arm 60, and the thermal head 101 are the same as those in the ink paper initialization mode.

When the motor 9 is next rotated in the recording paper transport mode described above, the platen roller 1 moves the recording paper 3 to the chuck arm 5.
When the sensor 80 detects a detection section (not shown) provided on the platen gear 8, the motor 9 stops and the second motor 47 rotates. As a result, in the same manner as the above operation, the mode is moved from the recording paper conveyance mode to the print mode. At this time, the slider 54 moves, and in the printing mode, the feeding reel stand 23 is released from being fixed, the platen lock arm 58 is released as in the recording paper conveyance mode, and the switching arm 55 contacts the slide gear 25. The part 54d of the slider 54 and the spring 2
8, the small gear 2 moves to the position shown in FIG.
5b is the platen gear large gear 8a and the feed gear large gear 3
7a, and the large gear 25a is not engaged with any gear. The paper discharge rotation arm 103 and the arm 60 are the same as those in the recording paper transport mode.

In the thermal head 101, the drive arm 64 is rotated by the second groove of the cam gear 47, and the ink paper 76 and the recording paper 3 are overlapped and pressed against the platen roller ↓.

Next, in the above printing mode state, the motor 9 is rotated, and at the same time, power is started to be supplied to the thermal head 101 from a control circuit (not shown), and a printing operation is performed, leading to the state shown in FIG. 11.

FIG. 12 is a detailed view of the recording paper 3 and chuck arm 5 at this time. Here, it is assumed that the energization pitch to the thermal head 101 is synchronized with the drive amount of the platen roller 1 by the sensor 13 detecting the slit plate 11 fixed to the rotating shaft of the motor 9.

At this time, the ink paper 76 and the recording paper 3 are fed together by the platen roller, and the used ink paper is separated from the recording paper 3 at the tip of the thermal head 101 and wound by the take-up reel stand 22. It is wound onto a take-up reel 74. The brake torque generated by the prep mechanism provided on the feeding reel stand 23 is applied to the ink paper 76 as pack tension, thereby preventing the ink paper 76 from being wrinkled. On the other hand, the recording paper 3 is guided along the platen roller l by guide members 81, 82, and 83.

When printing of a predetermined amount of the first color (yellow) is completed, the power to the thermal head 101 is cut off, but the recording paper 3 and the ink paper 76 continue to be conveyed by the suppression of the thermal head 101, and during that time, the second color (magenta) and separates the recording paper 3 and the ink paper 76 after printing. When these two operations are completed, the motor 9 stops and the second motor rotates. This moves from the print mode to the recording paper transport mode in the same way as the above operation. Thereafter, the second color (magenta) and third color (cyan) are printed in the same manner as above.After printing the third color, the platen roller l is rotated in the recording paper transport mode, and the sensor 80 performs the above operation. Similarly, the motor 9 stops and the second motor 47 rotates.This moves from the recording paper transport mode to the recording paper ejection mode in the same way as the above operation.At this time, the slider 54 moves and the recording paper ejection mode In this mode, the feeding reel stand 23 is fixed by the lock arm 26, the platen lock arm 58 is released in the same manner as in the recording paper conveyance mode, and the slide gear 25 engages with the platen gear 8 in the same state as in the printing mode. The K-arm 60 rotates through the rotation hole 54f of the slider 54, and one end 60b of the arm 60 comes into contact with the chuck arm 5, causing the chuck arm 5 to float above the outer periphery of the platen roller 1 and to release the recording paper 3. Unpin.

At this time, the projection 5b of the chuck arm 5 moves beyond the notch 1b of the platen roller 1 to a position above the outer periphery of the convex rib 1d.

The paper discharge rotating arm 103 and the thermal head 101 are the same as in the printing mode.

When the motor 9 is next rotated in the recording paper ejection mode described above, the chuck arm 5 is moved to the engaging portion 83 of the winding side guide 83.
b. Therefore, the projection 5b of the chuck arm 5 comes into contact with the outer periphery of the convex rib 1d of the platen roller 1, and the gap between the platen roller 1 and the chuck arm is kept constant, and the recording paper 3 is delivered to the discharge port 83a of the winding side guide. The platen roller is conveyed by the pressing force of the thermal head 101. This state is shown in Figure ↓3. FIG. 14 shows a detailed view of the recording paper 3 and chuck arm 5 at this time.

Furthermore, the motor 9 is rotated to feed the recording paper 3 to the feed roller 3.
The motor 9 is then conveyed until it comes into contact with the rotating roller 89 that contacts the rubber roller 36b at the center of the roller 6, and then the motor 9 is stopped. At this time, the position of the recording paper 3 can be easily detected by an opening circuit (not shown) by detecting the rotation of the sulin i-plate 11 attached to the motor 9 with the sensor 13. Further, at this time, although the ink paper 76 can be fed together with the recording paper 3, the length of the third color is determined so that the next first color will not appear.

Next, the second motor 44 is rotated to move from the recording paper discharge mode to the recording paper transport mode. At this time, the slider 54
moves, and the mode becomes the same as the recording paper transport mode. When the motor 9 is rotated in this state, the recording paper 3 is conveyed by the rubber roller 36b at the center of the feed roller and the roller 89, and is ejected between the upper and lower guide members 84 and 85. At this time, the rotating arms 86 and 87 are at the position indicated by the dashed-dot line in FIG. 5, so they do not come into contact with the recording paper 3. Further, when the platen roller 1 rotates once, the protrusion 5b of the chuck arm 5 fits into the notch 1b of the platen roller 1 by the biasing force of the spring 6, and presses the platen roller l.

When a certain period of time has passed after the sensor 95 detects the recording paper 3, the motor 9 stops. At this time, the trailing edge of the recording paper 3 is completely ejected between the upper and lower guide members 84 and 85, and the position of the platen roller l is determined by the sensor 79 detecting the detection part of the platen gear 8 and at the paper feeding mode position. It's stopped.

Next, the second motor 44 is rotated and moved from the recording paper transport mode to the standby mode in the same manner as described above. At this time, the slider 54 moves, and in the standby mode, the feeding reel stand 23 is fixed by the lock arm 26, the platen roller 1 is fixed by the platen lock arm 58,
The slide gear 25 is moved to the same position as in the paper feeding mode, that is, the position indicated by the dotted line in FIG. 8, and the K arm 60 is moved up to the position shown in FIG. 9, as in the recording paper transport mode. The paper discharge rotating arm 103 is a slider 54
By making contact with the rotating arm 86. and rotating in the direction B in FIG. 7, the rotating arm 86.
87 to the dotted line position shown in FIG. The recording paper 3 in the upper and lower guide members 84,85 is pressed against the ejection roller 91 by the rotating arms 86,87.

When the motor 9 is then rotated in the above standby mode, the recording paper 3 is conveyed by the ejection roller 91 and the auxiliary roller 93 and ejected from the apparatus. At this time, the motor 9 stops after a certain period of time after the sensor 95 looking at the recording paper 3 detects that the recording paper 3 has run out, and all operations are completed.

〔Effect of the invention〕

According to the present invention, after detecting the position of the recording paper when ejecting the recording paper, the mechanism position control motor uses the mechanism mode switching operation to guide and convey the recording paper to the ejection roller section. Thereafter, the paper can be ejected to a predetermined position using a motor for opening a rotary system such as a platen roller, so there is no need for a dedicated motor for paper ejection, making it possible to provide a thermal transfer recording device that is inexpensive and easy to handle. .

[Brief explanation of drawings]

FIG. 1 is a front view of a platen roller according to an embodiment of the present invention;
Figure 2 is a side view of Figure 1, Figure 3 (A) is a partially enlarged view of Figure 1, Figure 3 (B) is a side view of Figure 3 (A), and Figure 4 is a side view of Figure 3 (A). FIG. 5 is a schematic top view of a thermal transfer recording device according to an embodiment of the present invention, FIG. 6 is a front view of a gear block of a rotational drive system, and FIG. 7 is a diagram showing a drive system of the device. A front view, FIG. 8 is a configuration diagram of the switching gear, FIG. 9 is a front view showing the paper feeding state of the device, FIG. 10 is a partially enlarged view of the platen roller in FIG. 9, and FIG. 11 is a printing diagram of the device. 12 is a partially enlarged view of the platen roller in FIG. 11; FIG. 13 is a front view showing the ejection state of the device; FIG.
Figure 4 is a partially enlarged view of the platen roller in Figure 13, and Figure 15.
16 and 17 are side views of a conventional platen roller. 1...Platen roller, 3...5 Recording paper, 4...
Stopper, 5... Chuck arm, 6... Spring, 8... Platen gear, 60... K arm, 7
3... Ink paper cartridge, 83b... Engagement part,
101...Thermal head. Death/No. 20 Envy 4 Calm

Claims (1)

[Claims] 1. A recording paper guide that guides the recording paper after printing to a predetermined position in the recording paper ejection mechanism of a thermal transfer recording device that records on the recording paper by heating the ink paper using a thermal head. a member, a paper discharge member that conveys the recording paper along the recording paper guide member, a motor that controls the position of the mechanism, and a first power transmission means that transmits the power of the motor to the paper discharge member; A second motor that rotationally drives a platen or the like, a roller that discharges the recording paper, a second power transmission means that transmits the rotational power of the second motor to the roller, and a position of the recording paper that is detected. recording paper detection means, and after the recording paper detection means detects that the recording paper has been conveyed to a predetermined position, the paper ejection member and the roller are driven to perform a paper ejection operation in a predetermined direction. A recording paper ejecting mechanism of a thermal transfer recording device, characterized by comprising: