JPH02261687A - Thermal transfer recording device - Google Patents

Abstract

PURPOSE:To maintain the operating accuracy of each part in each operation mode at a desired level by controlling the operating state of each mechanism part in each operation mode for the control of the whole device operation. CONSTITUTION:After completion of data loading, control cams 76, 77 continue to rotate forward and are set in ready mode passing through standby mode. A mode motor 75 is temporarily stopped by detection of the setting of ready mode using each detection output from each mode detection switch SW1 to SW3. After completion of data loading, a head arm supporting a thermal head rotates, resulting in the thermal head coming closer to a platen roller. In addition, a mode control slider has moved to an extreme end on a main frame (the same state as when the device is in set mode). In this case, the drive force of a drive motor is transmitted to a transfer paper drive system, and a clamper is closed as the rack of a rack plate is not engaged with a clamp control gear.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a thermal transfer recording device that records information on recording paper by pressing a thermal head through a transfer paper.

(Prior Art) In recent years, thermal transfer type recording (printing) devices have been widely used as hard copy devices for computer graphics, etc., for various reasons such as simple mechanism, high recording speed, and easy handling. This is well known.

This type of recording device records predetermined information on the recording paper by pressing the recording paper through a transfer paper between a thermal head and a platen roller that is rotationally driven by a DC motor or a pulse motor, for example. It has become.

In addition, the thermal head is mainly a line type, in which multiple heating elements are installed in the width direction of the platen roller and the recording paper.
It consists of a group of heating elements arranged in a row, and by rotating the platen roller and appropriately controlling the current flowing through each heating element, one line of dots is sequentially recorded, and this is repeated for each color. It prints color image information such as desired characters and figures.

On the other hand, the transfer paper has color ink, for example, of three colors yellow (Y), magenta (M), and cyan (C) (four colors including black (B) if necessary) on the base film. First, the first color ink and the recording paper are mechanically set in a predetermined position M relationship, and the two are joined to perform transfer recording. After the transfer of the first color is completed, transfer the transfer paper, set the second color ink and the recording paper in a predetermined positional relationship, perform transfer recording again, and repeat this operation in the same manner. This completes the desired color printing.

By the way, in this type of thermal transfer recording apparatus, since the ink of the transfer paper is consumed each time the above-described transfer recording is performed, it is necessary to replace the transfer paper as necessary.

Furthermore, the recording paper must be replenished as appropriate, and this replacement and replenishment work is complicated.

Therefore, in order to smoothly replace the transfer paper and replenish the recording paper, a cassette that stores the transfer paper and the recording paper in one body, and a thermal transfer recording device that performs printing using such a cassette have been proposed. There is.

In such a cassette, the transfer paper necessary for color printing on the stored recording paper is stored in a pair of transfer paper rolls, and when this cassette is replaced, it is necessary to replace the paper. You can replenish recording paper and replace transfer paper at the same time.

In addition, a thermal transfer recording device that performs printing using such a cassette pulls out one of the transfer paper rolls from the installed cassette to a predetermined position within the device, rolls the transfer paper into contact with the platen roller, and records the paper. Printing is performed by taking out sheets of paper one by one and clamping them onto a platen.The specific structure is described in detail in Utility Model Application No. 63-31345, an earlier application filed by the present applicant.

(Problem to be Solved by the Invention) In the conventional thermal transfer recording device described in the specification of the prior application, a series of operations from loading of transfer paper to completion of printing is controlled by controlling the operating state of each mechanical part. This was done using a microcomputer while sequentially detecting it using sensor switches, etc.

For this reason, deviations in the operation timing of each mechanical part accumulate, making it difficult to control the operation accurately.

In addition, in conventional VT installations, the number of parts such as the above-mentioned sensor switch and various mechanical parts is extremely large, which causes an increase in cost, and the configuration of the device is complicated, making assembly very complicated. was there.

In particular, the mounting of each of the sensor switches described above requires high precision, as incorrect positioning can cause malfunctions.

Furthermore, there is another problem in that the load on the mylar controller that controls the operation of each of the mechanical components described above increases.

(Means for Solving the Problems) The present invention has been made to solve the conventional problems as described above, and includes a pair of supply side and winding side transfer paper rolls around which transfer paper is wound. A cassette that stores the paper and the recording paper is installed, and one of the transfer paper rolls on the winding side is pulled out from within this cassette to guide the transfer paper between the platen roller and the thermal head in the device, and the transfer paper is pulled out from within the cassette. This is a thermal transfer recording device that prints by pressing the thermal head against the platen roller via the recording paper fed onto the platen roller and the transfer paper, and the operation mode of this device is as follows: A set mode in which the installed cassette is locked inside the device main body, and a set mode in which the take-up side transfer paper roll is pulled out from inside the installed cassette and moved to a predetermined position, and a spindle is attached to each transfer paper roll. There is a loading mode in which each transfer paper roll is supported in a predetermined position by fitting the paper rolls, and the paper feed roller is pressed against the recording paper in the cassette, and a clamper that clamps the recording paper on the platen roller is opened and the drive motor is activated. is connected to the paper feed/discharge drive system and stands by in a state where it can feed/discharge the recording paper, and
There is a standby mode in which a new sheet of recording paper is printed after printing is completed, and a standby mode in which the clamper is closed to clamp the recording paper fed from the cassette to the platen roller, and the drive motor is connected to the transfer paper drive system. a ready mode in which the transfer paper is indexed; and the platen roller is rotated with the thermal head in pressure contact with the platen roller through the transfer paper and the recording paper, and the transfer paper is driven to print. A print mode in which the above-mentioned loading mode performs the opposite operation to return the take-up side transfer paper roll into the cassette, separate the above-mentioned spindles from each transfer paper roll, and move the paper feed roller away from the recording paper. It consists of an unloading mode in which the cassette is moved away from the device, and an eject mode that is performed continuously with the unloading mode to unlock the cassette so that the cassette can be removed from the device main body. The present invention provides a thermal transfer recording device characterized in that the operating states of each operating member in the above are set according to these operating modes.

(Embodiment) A preferred embodiment of the thermal transfer recording apparatus according to the present invention will be described below with reference to FIGS. 1 to 57.

In this embodiment, the present invention is applied to a video printer that prints on recording paper of card size or slightly longer, and each of the main mechanisms will be explained below.

<Overall Configuration> FIG. 1 is a plan view of a mechanical section of a video printer according to this embodiment, and FIG. 2 is a perspective view showing the overall frame configuration.

The frames in this video printer are roughly divided into an inner frame 3.4 that holds the platen row 51 and the thermal head 2, a main frame 5 that is located outside the inner frames 3 and 4, and supports these frames. 6 and a frame constituting the paper feed/discharge unit 7.

Then, on the main frame 5, there is a
A transfer paper drive mechanism 8, one mechanism control mechanism 9, etc. are arranged, and a platen roller drive mechanism 10 and the other mechanism control mechanism 11 are respectively mounted on the other main frame 6.

The mechanism control mechanisms 9 and 11 are interlocked with each other as will be described later.

The paper feed/discharge unit 7 is also equipped with a mechanism for feeding recording paper from within the cassette and discharging recorded recording paper from the video printer.

The main frame 5 and the main frame 6 include frame shafts 12a, 12b, 12c, which are stepped to the inner frame 3 and the inner frame 4, respectively.
It is fixed by screwing to 12d.

In addition, in the paper feed/discharge unit 7, the attachment piece 13a13b is the attachment piece 14 of the inner frame 3 and the inner frame 4.
a and 14b, respectively, and mounting pieces 14c and 14d of the main frames 5 and 6 are screwed to other mounting pieces 13c and 13d of the paper feed/discharge unit 7, respectively. are mutually fastened to keep the entire mechanism strong.

In this embodiment, by adopting such a frame configuration and distributing the above-mentioned mechanisms in each frame, the Ω load (weight, etc.) applied to a single frame can be distributed to each frame. The degree of freedom in designing the frame's strength, material, etc. can be increased.

Further, since each mechanism can be made into a unit for each frame, assembly, maintenance, etc. can be easily performed.

<Cassette Configuration> Next, the cassette 20 that is attached to the video printer according to this embodiment will be described with reference to FIGS. 3 to 5.

FIG. 3 is an upper perspective view of the cassette 20, FIG. 4 is a lower perspective view of the cassette 20, and FIG. 5 is a sectional view, all of which show the state in which the opening for loading transfer paper is opened.

The feature of this cassette 20 is that both the transfer paper T and the recording paper are stored in one main body case 21.
As a result, the user can print simply by attaching the cassette 20 to the main unit, and the operability can be significantly improved.

The cassette 20 includes a main body case 21 formed by butting together an upper half and a lower half made of synthetic resin, a transfer paper cover 22 that opens and closes a transfer paper loading opening 21a of this main body case 21, and a main body case 21. The transfer paper cover 22 and the recording paper cover 23 are used to insert the cassette 20 into the main body of the apparatus. It opens and closes in conjunction with the removal.

Grooves 24 for preventing erroneous insertion are formed on both sides of the main body case 21 to prevent erroneous insertion of the cassette 20 into the apparatus main body.

In addition, this groove 24 for preventing incorrect insertion includes a locking rib 2.
5 and a locking hole 26 are provided so that a cassette lock side locking operation, which will be described later, can be performed.

The positional relationship between the locking rib 25 and the locking hole 26 with respect to the cassette insertion direction is such that the locking rib 25 is on the front side of the locking hole 26 (on the right side in FIG. 3) as shown in FIG. It is set.

The transfer paper storage section in the transfer paper cover 22 stores a take-up transfer paper roll 27 and a supply transfer paper roll 28 on which the transfer paper T is wound. At 27.28, the transfer paper T is turned around.

Further, the transfer paper roll 27 on the winding side is pre-wound with transfer paper of a predetermined quality from the time of shipment from the factory, as will be described later.

In addition, this transfer paper sheet has yellow (Y), magenta (
M), cyan (C), (black (K) as required)
Each color ink is sequentially and repeatedly coated with a predetermined width in the direction of the strip of the base film to form an ink pattern in which one cycle is formed.

Each transfer paper roll 27.28 is composed of a core 29.30 serving as a mandrel for winding the transfer paper T, and reels 3132 provided at both ends of each core 29.30. 32 is formed with a notch that engages with a drive shaft (spindle) on the device main body side to be fitted as described above.

As shown in FIG. 5, the roll direction (tightening direction) of the transfer paper T relative to the winding-side transfer paper core 29 and the supply-side transfer paper core 30 are both clockwise, and the transfer paper T is wound in the same roll direction. ing.

On the other hand, a recording paper K cut to a predetermined size is stored in the recording paper storage section in the recording paper cover 23.
The recording paper is pressed downward in FIG. 5 together with a bottom plate 34 by a spring 33.

The tips of these recording sheets (the left end in FIG. 5) are held on the lower surface by a pair of holding pieces 35 and 35.

Further, in this cassette 20, an inclined surface 21c is formed on the bottom surface continuous to the paper feeding opening 21b,
This inclined surface 21C has a predetermined value of 1! ! ra with friction coefficient
m member 36 is attached.

In this embodiment, each of the above-mentioned holding pieces 35.35
The front end of the recording paper can be buckled by the friction member 36 during paper feeding, thereby preventing double feeding when the recording paper K is automatically fed.

In FIG. 4, 21d is a slit into which mice 160b and 161b of a loading arm 160161, which will be described later, is inserted when the cassette 20 is installed in the apparatus main body, and 21e is a slit in which the recording paper is inserted when the cassette 20 is inserted into the apparatus main body. This is an escape groove through which a protrusion (not shown) inside the device body for opening the cover 23 passes.

Here, in conventional cassettes of this type, in order to prevent double feeding of recording sheets, instead of the holding piece 35 and the friction member 36, a cassette is used to simultaneously hold all end surfaces of both ends and the lower surface of the front end of the stacked recording sheets. A pair of corner pawls were provided that came into contact with each other, but such corner pawls could apply a large amount of force to buckle the front edge of thick recording paper such as official postcards. It was necessary and not desirable.

On the other hand, the cassette 2 according to the present embodiment as described above
0, a pair of holding pieces 35, 35 and a friction member 36
When double feeding is prevented by this method, since there is no need to buckle the front end of the recording paper, thick recording paper can be fed with a relatively small force, and the configuration can be simplified.

<Supplied paper/transfer paper drive! 1 Mechanism (hereinafter referred to as 1 Drive Mechanism)> This drive mechanism is constructed by arranging various functional parts on a drive base 39 attached to the main frame 5, as shown in FIG. With a single drive motor 40 located on the base 39,
In the transfer paper drive mode, the transfer paper F is wound up or rewound onto each of the transfer paper rolls 27 and 28 housed in the cassette 20, and in the paper feed/discharge drive mode, the recording paper is fed/discharged. It is something that performs an action.

First, as shown in FIG. 6, the rotation of the drive motor 40 is transmitted to a center gear 42 by a belt 41. It meshes with gear 44.

This center idler gear 44 is connected to the center idler base 4 according to the transfer paper drive mode or the paper feed/discharge drive mode.
Depending on the rotational position No. 3, the transfer paper drive gear 45 or the paper feed/discharge drive gear 46 is selectively engaged with.

First, FIG. 6 shows the configuration in the transfer paper drive mode. In this mode, the center idler base 43 is biased clockwise by the spring 47, so the center idler base 43 is pivotally supported. The center idler gear 44 meshes with the transfer paper drive gear 45.

The transfer paper drive gear 45 meshes with a transfer paper drive idler gear 49 provided on a transfer paper drive idler base 48 that is rotatable coaxially with the rotation shaft 45a.

The transfer paper drive idler gear 49 is given a rotational load by a spring 50 and a felt 51 as shown in FIG. Perform a so-called swinging motion.

As a result, as shown in FIG. 6, when the transfer paper drive gear 45 rotates clockwise, the transfer paper drive idler base 4
8 also rotates in the clockwise direction in the figure around the rotation wheel 45a,
The transfer paper drive idler gear 49 is the transfer paper drive gear 5 on the winding side.
It meshes with 2.

Further, when the transfer paper drive gear 45 rotates counterclockwise in FIG.
The transfer paper drive idler gear 49 rotates counterclockwise around a, and the transfer paper drive idler gear 49 meshes with the supply side transfer paper drive gear 53.

FIG. 6 shows a state in which the transfer paper drive gear 45 rotates clockwise and the transfer paper drive idler gear 49 meshes with the take-up side transfer paper drive gear 52.

Here, the projection 48a for inhibiting gear rotation provided at the tip of the transfer paper drive idler base 48 is connected to the transfer paper drive gear 5 on the supply side.
3, thereby, this supply side transfer paper drive gear 5
3 rotation is locked.

As shown in FIG. 8, the rotational force of the take-up side transfer paper drive gear 52 is transmitted to a pulley 56 via a slip clutch mechanism constituted by a spring 54 and a felt 55, and further,
The timing belt 57 transmits the signal to another pulley 58 close to the take-up spindle.

Note that the tension control of this timing belt 57 is adjusted by an intermediate pulley 59.

Furthermore, the gear 60 that rotates integrally with the pulley 58 is
As shown in FIG. 1, it meshes with a take-up spindle gear 61a formed integrally with the take-up spindle 61.

Therefore, in the state shown in FIG. 6, the power of the dryer 1 motor 40 is transmitted to the center gear 42, the center idler gear 44, the transfer paper drive gear 45, the transfer paper drive idler gear 49, the winding side transfer paper drive gear 52, the pulley 56, The signal is transmitted to the take-up spindle gear 61a via the timing belt 57, pulley 58, and take-up transfer paper drive gear 60.

This winding-side spindle gear f31a is used for winding the transfer paper T at the time of starting each color of the transfer paper T, which will be described later, and for printing the transfer paper T.
The driving torque at this time is:
The transfer paper T is kept constant by a slip clutch mechanism (formed of felt 55 or the like in FIG. 8) provided between the take-up transfer paper drive gear 52 and the pulley 56.
A stable winding drive is performed.

Moreover, as shown in FIG. 9, when the transfer paper T is wound up,
A supply spindle gear 62a integrally formed with the supply spindle 62 is driven by the transfer paper T. This supply side spindle gear 62a is the supply side transfer paper drive gear 6.
A supply-side transfer paper drive gear 64 that meshes with the supply-side transfer paper drive gear 63 and rotates integrally with the supply-side transfer paper drive gear 63 is engaged with a supply-side transfer paper drive gear 65.

The supply side transfer paper drive gear 65 is in a rotational force transmission relationship with the supply side transfer paper drive gear 53 via a slip clutch mechanism constituted by a spring 66 and a felt 67 as shown in FIG. The rotation of the supply side transfer paper drive gear 53 is locked by a rotation inhibiting protrusion 488 provided on the transfer paper drive idler base 48 described above.

Therefore, this supply side transfer paper drive gear 65 rotates while being subjected to a constant load torque by a slip clutch mechanism (consisting of a felt 67 or the like in FIG. 9).

This load torque becomes a rotational load torque of the supply side spindle gear 62a, and acts as a back tension on the transfer paper during a winding operation under transfer assembly during loading or the like.

In this way, in this example, since an appropriate back tension is applied when the transfer paper F is wound up,
It is possible to prevent wrinkles from occurring when the transfer paper T is driven.

Further, when the drive motor 40 rotates in the opposite direction to the above-described state, the transfer paper drive gear 45 rotates counterclockwise, and the transfer paper drive idler base 48 rotates counterclockwise around the rotation axis 45a. Rotates in one direction.

As a result, the transfer paper drive idler gear 49, which is pivotally supported by the transfer paper drive idler base 48, and the take-up transfer paper drive gear 52 are disengaged from each other, and are brought into mesh with the supply side transfer paper drive gear 53. The state in which the rotation inhibiting protrusion 48a formed on the transfer paper drive idler base 48 is engaged with the supply side transfer paper drive gear 53 is released.

Therefore, the rotation of the drive motor 40 starts from the transfer paper drive idler gear 49 to the supply side transfer paper drive gears 53, 6564, .
63, and the supply side spindle gear 62a is driven.

The driving force at this time is the supply side transfer paper roll 28.
It is used for rewinding the transfer paper T during unloading.

Also in this case, as shown in FIG. 9, a slip clutch mechanism (composed of a felt 67 in FIG. 9, etc.) is provided between the supply side transfer paper drive gear 53 and the supply side transfer paper drive gear 65. ) is provided to warm up the supply side spindle gear 62a, so that the supply side spindle gear 62a does not rotate with more than a certain torque, and the bottom of the transfer paper T can be rewound without applying excessive tension to the transfer paper T.

Next, the center idler gear 44 is connected to the paper feed/discharge drive gear 4.
The drive system when meshed with 6 will be explained.

As shown in FIG. 7, the driving force of the feed sheet drive gear 46 transmitted from the drive motor 40 is transmitted to another sheet feed/discharge drive gear on the same axis via a slip clutch mechanism constituted by a spring 70 and a felt 71. After being transmitted to 72, the paper feed/discharge drive gear 73 is driven.

This paper feed/discharge drive gear 73 protrudes from the outside of the main frame 5 to the inside, that is, toward the first paper feed unit 7 (upward in FIG. 7), and is a gear provided on the paper feed/discharge unit 7 (in FIG. It meshes with the paper feed/discharge gear 214).

As a result, the rotation of the drive motor 40 at this time drives the recording paper to be fed or ejected.

Note that the gear relationship provided in the paper feed/discharge unit 7 will be explained in detail later. In addition, the center idler 44
The switching control of the meshing state between the transfer paper drive gear 45 or the paper feed/discharge drive gear 46 will also be described later.

In this mechanism as described above, the single drive motor 4
0, the winding drive and rewinding drive of the transfer paper T and the feeding and discharging drive of the recording paper can be selectively performed as appropriate.

Therefore, according to this embodiment, the number of motors in this drive mechanism can be reduced.

Thereby, it is possible to reduce the cost of the mechanism part and also to reduce the noise generated from the motor.

In addition, the drive motor 40, transfer paper drive system, and paper feed/delivery drive system are all arranged on a single drive base 39 as subunits, making it easy to incorporate into the main frame 5. This improves assembly efficiency and facilitates automatic assembly.

Mechanism Control Mechanism> This mechanism control mechanism is composed of a pair of mechanisms 9.11 placed on each of the main frames 5.6, and each mode is controlled by a single mode motor 75 placed on one of the main frames 5. The control cam gears 7 and 77, which are pivotally supported by the main frame 5.6, are rotated synchronously,
This sets and controls each operation mode of the video printer according to this embodiment.

Further, in this embodiment, the operations controlled by the mechanism control 81a include the loading operation of the transfer paper T, each transfer paper roll 2 of each spindle.
7. Fitting operation to 28, clamping operation for recording paper to platen roller 1, paper feeding and ejection operation for recording paper, Ill< operation of transfer paper drive or recording paper drive, to platen roller 1 of thermal head 2 There are the approaching and separating operations and the ejecting operation of the cassette 20.

The configuration of each mechanism control mechanism 9, 11 will be explained below with reference to FIGS. 1, 6, and 10 to 17.

First, in the mechanism control mechanism 9 provided in the main frame 5, the rotational driving force of the mode motor 75 is decelerated by a belt 78 to drive a worm 79, as shown in FIG.

This rotary drive and power is then decelerated from the worm 79 to the worm wheel 80 and the mode gears 81, 82, 83, and then to one of the control cam gears 7.
Drive 6.

Cam grooves 76a, 76b, and 76c as shown in FIGS. 10(A) and 10(B) are formed on the front and back surfaces (surfaces facing the main frame 5) of the control cam gear 76, respectively. As shown in the figure, the surface cam volume 7
A pin 85a provided at the tip of the spindle control lever 85 is engaged with the pin 6a, and a pin 86a provided on the mode control lever 86 is engaged with the cam groove 76b on the back surface.

Therefore, due to the rotation of the control cam gear 76 and the shape of each of the cam grooves 76a and 76b, the spindle control lever 85 and the mode control lever 86 are
are appropriately rotated around their respective rotational support shafts 85b and 86b to perform setting 1i+ control of each operation as described above.

In addition, in another cam groove 76c on the back surface, a cam roller (1 s in FIG.
ea) is engaged, and this control cam gear 7
The rotation of 6 causes a thermal head 2 attached to a head arm, which will be described later, to approach and separate from the platen roller 1.

As shown in FIG. 6, a fan-shaped gear portion 85c formed on the spindle control lever 85 meshes with an intermediate gear 81, and this intermediate gear 87 is connected to a rack 88a1. : They mesh together.

Therefore, this rotational movement of the spindle control lever 85 is converted into a linear movement of the spindle control slide 88 via the intermediate gear 87.

Further, as shown in FIG. 6, a pin 86c installed at the tip of the mode control lever 86 is engaged with an elongated hole 89a at the right end of the mode control slider 89. Therefore, the rotational movement of the mode control lever 86 is converted into the linear movement of the mode control slider 89.

Further, on the back surface of the control cam gear 76, a notched gear 76d is provided with teeth extending between predetermined angle boxes.
are integrally formed, and power transmission for loading the transfer paper is performed by meshing the teeth of the notched gear 76d with the top of the timing gear 90.

That is, the timing gear 90 rotates intermittently with respect to the rotation of the control cam gear 76, and the rotation of the timing gear 90 is caused by the rotation of the loading gear 9192.93 (
The gear 93 is transmitted to the loading arm via the gear 92 (coaxial), and drives the loading arm (see FIG. 18).

Note that loading refers to an operation in which the take-up transfer paper roll 27 housed in the cassette 20 is guided to a predetermined position within the video printer and the transfer paper T is brought close to the surface of the platen roller 1.

Further, a bin 91a is installed in the loading gear 91, and the bin 91a changes to a loading state as the loading gear 91 rotates.

A first mode detection switch 5w1 (using a leaf switch, for example) to be detected is turned on and off.

Next, FIG. 11 shows the drive base 39 shown in FIG.
It is a diagram with the control cam gear 76, mode motor 75, etc. removed.

First, the eight mode control sliders perform two systems of setting control, ie, a selection operation of transfer paper drive or recording paper drive, and a clamp operation, by their movement.

The mode control slider 89 has two long holes 89a and 89b extending in the sliding direction (horizontal direction in the figure).
are formed, and studs 95 and 96 implanted on the main frame 5 are engaged with these long holes 89a and 89b, respectively.

A rack plate 97 is connected to the mode control slider 89 by engagement of bushings 98.99 and long holes 97a and 97b of the rack plate 97, and the rack plate 97 is connected to the mode control slider 89 by a spring 101 as shown in FIG. Forced to the right.

A rack 97c formed on the lower side of the rack plate 97 in FIG. 11 meshes with the clamp control gear 102 as the mode control slider 89 moves rightward in the figure.

This clamp control gear 102 is pivotally supported by a shaft 102a that stands up from the inner frame 3, and is constantly biased by a spring 103 in the anti-Japanese direction N1 and positioned.

and the mode control slider 89 as described above.
moves to the right in the figure, the rack 97c provided on the rack plate 97 moves towards the clamp control gear 1.
02 and rotates the clamp control gear 102 in the clockwise direction in the figure. This daily movement opens the clamper on the platen roller 1, as will be described later.

On the other hand, as shown in FIG. 11, the center idler base 43 is located at the left end of the mode control slider 89.
A center idler control plate 104 is attached by a bush 105 for rotating the drive motor 40 to switch the transmission system of the driving force from the drive motor 40 to a transfer paper drive system or a recording paper drive system.

The center idler control plate 104 is biased clockwise in the figure by a spring 106, and the bent portion 89c of the mode control slider 89
The position is regulated by pressure contact.

Here, as mentioned above, the center idler base 43 on the drive base 39 is biased clockwise in the figure by the spring 47 (see FIG. 6). The bottle 101 that protrudes from the tip toward the main frame 5 is connected to the inclined side 104a of the center idler control plate 104 in FIG.
It is located near the valley part 104b.

In addition, the center idler control plate 104 is
As the mode control slider 89 moves to the right in FIG. 11, its inclination J104a causes the bin 107 of the center idler base 43 to rotate counterclockwise in the diagram.

As a result, this center idler base 43
2a, the center idler gear 44, which is pivotally supported by the center idler base 43, meshes with the paper feed/discharge drive gear 46 in relation to the transfer paper drive gear 45 to M, and transfers the paper. The paper drive mode is shifted to the paper feed/discharge drive mode.

Here, if the gears do not mesh smoothly at this time, that is, if the teeth of the center idler gear 44 and the teeth of the paper feed/discharge drive gear 46 come into contact, the center idler control plate 104 The meshing stroke between the gears is absorbed by slightly rotating in the direction of anti-Japanese 61 against the spring 06.

According to the above explanation, when the mode control slider 89 is in the state shown in FIG.
meshes with the paper feed/discharge drive gear 45, and the power of the drive motor 40 is transmitted to the transfer paper drive system.

Also, the clamp gear 102 is connected to the spring 103
Because it is biased, it is biased counterclockwise.
This closes the clamper.

When the mode control slider 89 moves to the right in FIG.
4 meshes with the paper feed/discharge drive gear 46, and the power of the drive motor 40 is transmitted to the paper feed/discharge drive system.
A mechanism to be described later causes the two-wheel drive gear 102 to rotate clockwise to open the clamper.

On the other hand, depending on the movement of the spindle control slider 88, the spindle engages with the transfer paper roll 27, 28, and the paper feed roller 230 (see FIG. 20) approaches and separates from the recording paper (paper feeding operation). , and three systems of eject operation of the cassette 20 are controlled.

In the fitting operation of the spindle in this embodiment, as will be described later, the fitting operation of the spindle is first performed to support the transfer paper roll 28 on the supply side, and then the loaded roll is fitted to the supply side transfer paper roll 28. The fitting operation to the transfer paper roll 27 on the transfer side is performed, and the fitting operation of the spindle to each transfer paper roll 2728 is performed. I] Haku is carried out in stages.

This spindle control slider 88 has a long hole R8b.
, 38e, and studs 95, 110 implanted in the main frame 5 are engaged with these elongated holes 88b, 88c, respectively.

The positional relationship between this spindle control slider 88 and the mode control slider 89 in the thickness direction (direction perpendicular to the paper surface) in FIG. 11 is such that the mode control slider 89 overlaps the spindle control slider 88. Therefore, one stud 95 is shared by the spindle control slider 88 and mode control slider 89 for support.

This spindle control slide 88 has a paper feed roller control plate 111, and a long hole 111a of this paper feed roller control plate 111.

111b and bushes 112 and 113 implanted in the spindle control slider 88, it is supported so as to be slidable in the lateral direction in FIG.
It is constantly biased in the left direction in FIG.

A bending portion 111C is provided at the left end of the feed roller control plate 111 in the drawing, and when the spindle control slider 88 moves to the left in the drawing, the bending portion 111C bends over the drive base 3.
9 and rotates the paper feed roller control lever 115 counterclockwise about a rotation shaft 115b.

Further, a gear portion 115C is integrally carved on the outer periphery of the rotating shaft 115b of the paper feed roller control lever 115 (see FIG. 7). It protrudes toward the unit 7 side and meshes with a paper feed roller moving gear 237 (see FIG. 26) provided on the paper feed unit 7, which will be described later.

As a result, the paper feed roller control lever 11 is caused to slide by the paper feed roller control plate 111 as the spindle control slider 88 moves.
5 is rotated, and this rotation causes the paper feed roller 230 in the paper feed/discharge unit 7 to move to the cassette 20 as described later.
It comes into contact with and separates from the recording paper stored inside.

Note that this paper feed roller control lever 115 is constantly biased in the clockwise direction by a spring 116 (see FIG. 6) to separate the paper feed roller 230 from the recording paper K, and is also biased in the clockwise direction by a stopper bin 117. The range of rotation in the direction is restricted.

The spindle control slider 88 has an arm portion 88d at the upper left end in FIG. 11, and when the spindle control slider 88 moves to the right in FIG.
46 (see FIG. 1) to the main frame 5 side, and moves the eject slider 246 to the right.

And spindle control slider 8 like this
By moving the eject slider 246 in conjunction with step 8, the cassette 20 is ejected from the main body of the apparatus.

Further, the spindle control slider 88 includes:
Cam parts 88e and 88f are provided that are bent perpendicularly to the main frame 5, and these are formed by continuous parallel parts and inclined parts with predetermined length dimensions, as shown in FIG. It has a plate cam shape.

The cam shapes of these cam portions 88e and 88f control the fitting operation of the supply side spindle 62 and take-up side spindle 61 to each of the transfer paper rolls 27 and 28 as the spindle control slider 88 moves. I'm starting to get it.

Note that the length dimensions of each of the cam portions 88e and 88f are the first
As shown in FIG. 2, the cam portion 88e on the supply side is formed shorter than the cam portion 88f on the take-up side, so that as the spindle control slider 88 moves, the spindle on the supply side first starts feeding. The spindle on the winding side is fitted into the transfer paper roll 28 on the side, and then the spindle on the winding side is fitted on the transfer paper roll 27 on the winding side.

Hereinafter, the sound structure will be explained in more detail using FIGS. 12 to 14.

Note that FIG. 14 is a view of the spindle base 122 and spindle control arm 128 on the supply side as seen from above in the axial direction of the spindle 62, and these members on the winding side are also formed in the same shape.

First, the supply price spindle 62, the winding side spindle 6
1 rotate around sleeves 120, 121, respectively, and sleeves 120, 121 rotate around spindle base 122.
123 and is press-fitted and fixed.

The sleeves 120 and 121 are fitted onto the shafts 124 and 125, and compression springs 126 and 127 apply force to the spindle bases 122 and 123 in an upward direction in FIG.

On the other hand, the flanges 122a and 123a provided on the spindle bases 122 and 123 push up the shafts 128a and 129a installed at the tips of the spindle control arms 128 and 129, as shown in FIG. 12B
, 129 are biased in the counterclockwise direction in FIG. 12, that is, in the fitting direction, around the pivot shafts 128b and 129b.

In addition, in this state, the rollers 128c and 129c, which are pivotally supported at the tips of the spindle control arms 12B and 129, are in contact with the parallel parts of the cam parts 88e and 88f of the spindle control slider 88, and these spindle control arm 128
129 is prevented from rotating in the fitting direction.

Therefore, the supply side spindle 62 and the take-up side spindle 6
1 are both in a state where their upward movement in FIG. 12 is restricted.

When the spindle control slider 88 moves upward in FIGS. 11 and 12, the roller 1 of each spindle control arm 128, 129
28c and 129c rotate in a stepwise manner along the inclined portions of cam portions 88e and 81H of the spindle control slider 88.

As a result, these spindle control arms 12
8.129 rotates counterclockwise about its rotation shafts 128b and 129b, and the supply side spindle 62 and the take-up side spindle 61 sequentially move upward in the figure.

In this embodiment, each of the cam portions 88e,
Since the length dimensions of the parallel portions 88f are different, the supply side spindle 62 first fits into the reel 32 provided at the end of the supply side transfer paper core 30, and then the winding side transfer paper core 2
A supply spindle 62 fits into the reel 31 provided at the end of the transfer paper roll 9, thereby transmitting driving force to each of the transfer paper rolls 27, 28.

The timing of the fitting operation of the spindles 61, 62 to each of the transfer paper rolls 27, 28 will be explained in detail in the explanation of the operation described later.

Further, as described above, the rotational driving force is transmitted from the drive motor 40 to the supply side spindle 62 via the gear 63 (see FIGS. 6 and 13), and the rotational driving force is transmitted to the take-up side spindle 61. is gear 60. Pulley 58. Rotational driving force is transmitted from the drive motor 40 via the belt 57 and the like (see FIGS. 13 and 6).

Next, the mechanism control mechanism 11 provided on the main frame 6 side will be explained.

This mechanism control mechanism 11 includes a mechanism control Ifi provided on the main flail 5 side.
The platen row 5 of the thermal head 2 works in conjunction with lf19.
1, and the reels 31 and 32 on the main frame 6 side of each transfer paper roll 27 and 28.
The fitting operation of the spindle to the tdliXl is performed.

This mechanism control mechanism 11 will be explained below with reference to FIGS. 15 to 17.

Note that FIG. 15 is a view of FIG. 1 viewed from the direction of arrow B.

In FIG. 15, 130 is a mode gear, and power is transmitted to this mode gear 13'o through a worm wheel 80 of the main frame 5 and a transmission shaft 80a (see FIG. 1).

Here, in the worm wheel 80, the reduction ratio of the motor rotation is still small, and the drive torque is small, so the torsional rigidity of the transmission shaft 80a is small, so the power transmission between the two frames is sufficiently performed only by this transmission shaft 80a. can be done.

Further, the rotation of the mode gear 130 is further decelerated by another mode gear 131□132, and then drives the control cam gear 77.

Here, the mode gears 81, 82, 83 . . . on the main frame 5 in FIG. Control C1-J Recum Gya 7
Gear reduction ratio up to 6 and mode gear 1 in Fig. 15
31, 132.133, Control Lucum Gear 7
Since the gear reduction ratios up to 7 are set to the same value, each of the control cam gears 76 and 77 rotates in the same phase.

In this way, by connecting the two control cam gears 76 and 77 provided on each of the main frames 5 and 6 by an outer periphery drive method using each of the mode gears located on the outer periphery of these control cam gears 76 and 77, The arrangement position of the transmission shaft 80a can be shifted from the center of the mechanism.

As a result, according to this embodiment, the design layout between the main frames 5 and 6 is different from the shaft drive method (a method in which the rotating wheels of two control cam gears are connected by a transmission shaft to transmit power). The degree of freedom is increased, thermal head pressure = 1f Iff fN, cooling fans, etc. can be efficiently arranged, and the machine can be made smaller and lighter.

In addition, the transmission shaft 80a in the outer circumferential drive method has a smaller transmission torque than the transmission shaft in the shaft drive method, so there is greater freedom in selecting the material, outer diameter, etc. of the shaft 80a. Cost reduction can be achieved.

On the other hand, on the back surface of the control cam gear 77 (the surface facing the main frame 6), as shown in FIG.
A cam groove 778 that is symmetrical (mirror image) to Gc is formed, and a pin implanted in the head arm, which will be described later, is engaged with this cam groove 77a.

As a result, the gear arms 176, 1
The movement of the thermal head 2 attached to the platen row 77 toward and away from the platen row 51 is controlled.

Further, a plurality of slits 71b are formed in two rows at predetermined angular positions on the outer circumference of the control cam gear 77, and these slits 77b are connected to second and third mode detection switches Sw2. By detecting with Sw3, it is possible to detect the operating mode according to the rotation angle position of the control cam gear 77.

That is, in FIG. 15, the light-receiving elements (or light-emitting elements) constituting the detection switch are attached to the main frame 6 via a sensor bracket 137, and each of the light-receiving elements 1
A light emitting element (not shown) constituting the photocoupler is provided at a position facing 35 and 136.

Here, the slit 77b is connected to the control cam gear 7.
By providing the cam sensor bracket 137 on the outer periphery of the cam sensor bracket 137, the detection position accuracy of each of the mode detection switches can be improved, and since the cam sensor bracket 137 can be easily arranged, the space factor can be improved.

In this way, by providing a position detection means on the outer periphery of one of the pair of control cam gears 76 and 77 that rotate in the same phase, that is, the control cam gear 77 in this embodiment, each of the control cam gears 7G and 77 rotate in the same phase. A continuous cam groove can be formed on the surface from the center to the outer periphery as shown in FIGS. 10(A) and 10(B), and the cam groove can be efficiently designed.

Further, the surface of the control cam gear 77 has a cam groove 7 formed on the surface of the previous control cam gear 76.
A cam groove (not shown) symmetrical to 68 is formed,
This cam groove has a spindle control slider 1.
40 is engaged with the bottle 140a.

Therefore, the rotation of the control cam gear 77 causes the sub-spindle control slider 140 to move to the first position.
5 and 17, it is slid laterally.

As shown in FIG. 1, this sub-spindle control slider 140 controls the sub-spindles 141 and 142, which are arranged opposite to the spindle, to the respective transfer paper rolls.
7.28, and the two elongated holes 140b
, 140c are slidably supported by engaging studs 143 and 144 installed in the main frame 6, respectively.

Additionally, this sub-spindle control slider 140
Cam parts 140d and 140e are formed at predetermined positions, and these cam parts 140d and 1408
Spindle control slider 8 as shown in the figure.
The cam portion 88e and aar formed in 8 have a cam shape in which a parallel portion and an inclined portion having the same shape are continuously formed.

Note that FIG. 17 is a schematic sectional view of FIG. 15 viewed from above.

In FIG. 17, 145 and 146 are a sub-spindle arm on the supply side and a sub-spindle arm on the take-up side, respectively, and shafts 147a and 148 of brackets 147 and 148.
It is rotatably supported around a.

The supply side sub-spindle 142 and the take-up side sub-spindle 141 are located at one end of the supply side sub-spindle arm 145 and the take-up side sub-spindle arm 146.
are supported by shafts 145a and 146a, respectively.

Further, the other end side of each spindle arm 145, 146 is connected to each shaft 145a by a spring 149, 150.
.

It is biased counterclockwise around 146a.

In addition, in the state shown in FIG.
, 140e, each spindle arm 145.1
Rollers 145b and 146b provided on one end side of 46 abut against each other to restrict rotation.

Then, when the control cam gear 77 rotates,
The pin 140a of this sub-spindle control slider 140 is guided by the cam groove of the control cam gear 77, and the sub-spindle control slider 1
40 moves to the right in FIG.

Therefore, each roller 145b, 146b provided on each sub-spindle arm 145146 is connected to each cam portion 140d 140 of the sub-spindle control slider 140.
Since the sub-spindle arm 145.14G sequentially moves in a stepwise manner along the inclined portion e, the sub-spindle arm 145.14G sequentially rotates counterclockwise in FIG.

As described above, by the rotational movement of each sub-spindle arm 145 and 146 controlled by the movement of the sub-spindle control slider 140, the supply-side sub-spindle 142 is first attached to the supply-side transfer paper roll 28.
Then, the take-up side sub-spindle 141 is fitted into the take-up side transfer paper roller 27.

The timing of the fitting operation of each of the sub-spindles 141 and 142 is based on the timing of each of the spindles 6 on the driving side described earlier.
It is synchronized with each operation timing of 1.62.

By fitting the sub-spindles 141 and 142 as described above, the driven side of each of the transfer paper rolls 27 and 28 is supported.

Here, each of the spindles 61 .
62 uses these spindles 61, 62 to position the driving side of the transfer paper rolls 27, 28, and also transmits driving force to these spindles 61, 62 by gears.

Therefore, in this embodiment, these spindles 61.
62 is linearly moved up and down in a direction perpendicular to the main frame 5 (in the axial direction of the spindle 61, 62) to fit each transfer paper roll 27, 28.

By moving each spindle 61, 132 in the MB manner (fitting operation) in this way, these spindles 61. (The positioning accuracy of i2 can be improved, and reliable driving force transmission can be realized.

On the other hand, the sub-spindle 141142 on the driven side only holds each driven side of the transfer paper rolls 27.28 without transmitting a driving force to each of the transfer paper rolls 27.28.

The fitting operation of these sub-spindles 141 and 142 having such a function is, as described above, the rotational movement of each of the sub-spindle arms 145 and 146,
In other words, it is a circular motion.

As a result, the transfer roller 28 in the cassette 20
position accuracy is not achieved, or the sub spindle 141
, 142, this positional error can be absorbed to some extent by displacement in the horizontal y direction in FIG. 17 due to circular arc movement.

Therefore, even if the positional accuracy of each of the transfer paper rolls 27, 28 in the cassette 20 is rough to some extent, each of the sub-spindles 141, 142 can be reliably fitted to the transfer paper rolls 27, 28, and these transfers can be performed. paper roll 2
7.28 can be held precisely in place.

In addition, each transfer paper roll 2728 in the cassette 20
Since the accuracy of the storage position of the cassette 20 can be relaxed, the cost of this type of cassette 20 can be reduced, and handling can be made easier.

Further, in order to perform arcuate motion, each of the sub-spindles 141, 142 may be attached to the sub-spindle arms 145, 146 which are supported by the shaft, so that the mechanism can be simplified.

According to the mechanism control mechanism configured as shown in (above) E, the three control sliders 8B are interlocked with the control cam gears 76 and 77.

By each movement of 89 and 140, all the settings of the above-mentioned six systems can be controlled.

Therefore, the structure of this mechanism control mechanism becomes simple, the number of parts can be reduced, and the ease of assembly can be improved, and IT costs can be reduced.

Moreover, each such setting control is performed by a single mode motor 7.
5 by rotating each of the control cam gears 76 and 77, the number of motors for such setting control can be reduced.

This makes it possible to reduce costs and reduce noise generated from the motor.

<Platen roller mechanism> Next, the drive mechanism, loading mechanism, and clamp g! of the platen roller 1 mentioned above. 181i will be explained.

First, as shown in FIG. 15, the drive mechanism for the platen roller 1 is composed of a platen roller drive motor 155, a deceleration mechanism 156, etc., and the rotation of the platen roller drive motor 155 is decelerated by the deceleration mechanism 15G. is transmitted to a pulley 158 attached coaxially with the platen roller shaft 157, thereby rotationally driving the platen roller 1.

Further, the platen roller drive motor 155 is started, stopped, and rotated by a mechanical controller in accordance with various operation switches such as the mode detection switches Swl to Sw3 and the print switch.

The loading mechanism is driven into the cassette 20 by the driving force of the mode motor 75 transmitted through the control cam gear 76, timing gear 90.0, and loading gears 91, 92.93 (see FIG. 6) in the mechanism control mechanism 9. Stored take-up transfer paper roll 2
7 into the main body of the apparatus to form a predetermined transfer paper running bus, which will be described in detail below with reference to FIGS. 18 and 19.

Figure 18 is a view from the direction of the arrow in Figure 1 with the main frame 5 removed in Figure 1, and Figure 19 is a view from the direction of the arrow in Figure 1.
8 is a view of FIG. 8 viewed from the direction of arrow C.

Note that, in order to make the drawing easier to understand, the sheet feeding/discharging unit 7 is omitted in FIG. 18.

In FIG. 18, a platen row 51 is located between each inner frame 3 and 4, and a platen roller shaft 151 that rotates coaxially with the platen roller 1 projects from both end surfaces of the platen roller 1. This platen roller shaft 157 is attached to each inner frame 3.4.
is supported by.

Furthermore, a pair of loading arms 160 and 161 are rotatably fitted to the outside of each of the inner frames 3 and 4 coaxially with the platen roller shaft 157.

A mouse 160b and an IGlb are formed at the tips of these loading arms 160 and 101, respectively, and these mice 160b and 161b are inserted into the cassette 20 when the cassette 20 is attached to the main body of the device, and are wound up. Supports the core 29 of the side transfer paper roll 27 (third
(See Figure 2).

Further, a loading shaft 162 disposed parallel to the platen roller shaft 157 is rotatably supported by each of the inner frames 3.4.
As shown in FIG. 9, the rotational driving force of the loading gear 92 is transmitted to other loading gears 93, 16.4 via this loading shaft 162.

Note that these loading gears 92, 94, 164 are
It is arranged coaxially with the loading shaft 162.

Further, this loading shaft 162 also serves as a guide for the recording paper during recording.

On the other hand, other loading gears 93 and 164, which rotate together with the loading gear 92, mesh with gear portions 160a and 161a provided on the outer peripheries of the loading arms 160 and 161, respectively.

Further, as mentioned above, the loading gear 92 has the following features:
It meshes with the loading gear 91 on the main frame 5, and thereby the rotational driving force of the notched gear 76d of the control cam gear 76 is intermittently transmitted via the timing gear 90 and the loading gear 91.
(See Figure 6).

In this way, the rotational driving force transmitted from the control cam gear 76 to the timing gear 90 is transmitted to each loading arm 16016 by the gear train consisting of the loading gears 91, 92, 93, and 164 as described above.
1, respectively.

Here, since each of the loading arms 160 and 161 is driven by each loading gear 93 and 164 attached to both ends of the loading shaft 162, the loading arms 160 and 161 rotate in the same phase. Its rotation can also be performed independently of the rotation of the platen roller 1.

In FIG. 18, 165 is a loading end shaft, which is fixed between the inner frame 3 and the inner frame 4. The loading completion position of each loading arm 160, 161 is determined with good viscosity.

Further, the loading end shaft 165 in this embodiment is also used as a guide for the recording paper during printing.

Further, in FIG. 18, 166 is a loading arm positioning piece formed by bending a part of the inner frame 3, and it determines the height position of the loading arm 160161 (
(rotation position) is regulated.

Next, the clamp mechanism will be explained using FIGS. 19 and 20.

A clamp-off arm 168 is rotatably engaged with the loading shaft 162, and the clamp-off arm 168 is connected to the loading shaft 162.
2 and each of the above-mentioned loading gears 92.93164.

In FIG. 20, a roller 169 pivotally supported on the tip side (right side in the figure) of the clamp-off arm 168 protrudes toward the end surface of the platen roller 1. As shown in FIG.

A gear portion 168b is formed on the base end side of the clamp-off arm 168, and this gear portion 168b meshes with the clamp gear 102 (see FIG. 11).

As explained earlier, this clamp gear 168b is engaged with the rack 97c of the rack plate 97 as the mode control slider 89 moves, so that the clamp gear 168b
It rotates in the direction of 4 o'clock in the figure (see Figure 11).

As a result, the clamp-off arm IG8 that meshes with this clamp gear 102 is connected to the loading shaft 16.
The roller 16 pivots around the clamp-off arm 168 in the counterclockwise direction in FIG.
8a is a clamp lever disposed on the end surface of the platen roller.
It comes into contact with the tip of 170.

The clamp lever 170 is a central axis of rotation thereof, and rotates together with the lamp shaft 171 in the clockwise direction in the figure.

Further, the clamp shaft 171 is connected to a clamper 172 provided on the outer circumferential surface of the platen roller 1, and the clamper 172 is connected to the clamp shaft 171 by the rotational movement of the clamp shaft 171 in conjunction with the mode control slider 89 as described above. 3 in the diagram centering on
It rotates in one rotation direction and separates from the outer peripheral surface of the platen roller 1.

<Thermal Head Support Mechanism> Next, the configuration of the support mechanism for supporting the thermal head 2 that is moved toward and away from the platen roller 1 as described above will be explained using FIG. 18.

In FIG. 18, 175 is a heat sink, and the thermal head 2 in this embodiment is held by this heat sink 175.

Further, the heat sink 175 is supported by a pair of helad arms 176 and 177.

Here, since the mechanical parts around each of the head arms 176 and 177 are constructed in a substantially symmetrical shape, only the mechanism around one helad arm 1f 6 will be described below.

This head arm 176 is supported by a rotation center shaft 118, and this rotation center shaft 178 is connected to the inner frame 3.
It is planted on the inside (back side of the drawing).

Further, the tip of the driven-side main toggle link 180 is rotatably engaged with the shaft 176a protruding from the midway in the longitudinal direction of the head arm 17G. The base end of this driven side main toggle link 180 is connected to the driving side main toggle link 1
The main toggle link 181 on the driving side is rotatably engaged with @181a provided in the spring lever 1.
It engages with a shaft 182a provided at 82.

This spring lever 182 is biased by a spring 183 with a force in the clockwise direction in FIG. movement is blocked.

Here, the driven side main toggle link 180 and the driving side main toggle link 181 constitute a pair of toggle link mechanisms.

Further, in FIG. 18, reference numeral 186 is a sub-toggle link on the driving side, which is rotatably supported by a shaft 187 protruding from the inner frame 3, and a cam roller 186a is attached to the sub-toggle link 186 on the driving side. 3 (projects to the outside of the main frame l\5 [11+1 >).

The cam roller 186a is engaged with a cam groove 760 (see FIG. 10(B)) provided on the controller 1 to roll cam 16s side.

Further, the tip of the driving side sub-toggle link 186 is rotatably engaged with one end side of the driven side υ knob 1 to glu link 189 via a rotation shaft 188.

Note that the driven measuring button toggle link 189 is located on the back side of the driving side sub-toggle link 186, so the 18th
In the figure, it is indicated by a dotted line.

The other end of the driven side subtoggle link 189 is a shaft 181
It is rotatably engaged with the main driving side sub-toggle link 181 by b.

Therefore, the driving side sub-toggle link 186 and the driven side sub-toggle link 189 constitute another pair of toggle link mechanisms.

FIG. 21 schematically shows the configuration of each toggle link mechanism described above, and the points indicated by black circles in the figure are the inner frame 3.
The rotation axis is fixed, and the white circle is the rotation axis that is not fixed.

Furthermore, as shown in FIG. 21, at this stage, that is, when the thermal head 2 is far away from the printer roller 1, the two pairs of toggle link i structures described above are in a contracted state. (in a bent state).

As described above, the support mechanism for the thermal head 2 according to this embodiment supports the head arms 176 and 177 to which the thermal head 2 is attached via the heat sink 175.
Since it is configured to be supported by the two pairs of toggle link mechanisms as described above, the force applied to the sides of these toggle links m (
It is possible to obtain a force (output) greater than the input (input).

Therefore, according to this embodiment, a sufficient pressing force on the platen roller 1 can be obtained only by the rotational force of the control force t/76 without using a special pressure mechanism.

Furthermore, since there is no need to independently provide a special pressurizing mechanism, this type of device can be made smaller and lighter, and costs can also be reduced.

<Thermal Head> Next, the configuration of the thermal head 2 supported by the support mechanism configured as described above will be explained using FIGS. 22 to 25.

As shown in FIG. 23, this thermal head 2 is composed of a ceramic substrate 2a and a driver 12b that drives a heating element 190 arranged on this ceramic substrate 2b.

At the end of the ceramic substrate 2a (J the heating element 190
are arranged in a straight line for the number of dots to be printed,
Each heating element 190 is electrically connected from the ceramic substrate 2a to the driver substrate 2b by a plurality of wires 191.

In such a thermal head 2, a predetermined signal current is applied to each heating element 190 to generate heat as appropriate, and this heat causes the transfer paper T1. :Nuri 1!11
Printing is performed by melting or infusing the ink and transferring it onto recording paper K.

On the other hand, as shown in FIG.
75 is held to the head arms 176, 177 by screws 196, 197, 198, 199.

By the way, when the thermal head 2 configured as described above presses against the platen roller 1 and performs recording, each of the heat generating elements 190 arranged in a straight line contacts the outer peripheral surface of the platen roller 1 with uniform pressure. Otherwise, problems arise in that density unevenness occurs and the S/N ratio deteriorates, making it impossible to obtain a good print condition.

Therefore, the contact adjustment of the thermal head 2 with respect to the platen roller 1 in the axial direction of the platen roller 1 is adjusted (
It is necessary to perform contact adjustment in advance in the crimping position adjustment) and radial direction (adhesion adjustment).

Next, these adjustment methods will be described.

First, in order to adjust the crimping position, as shown in FIG. 22, adjustment notches 176b and 177b are provided in the bent portions of the head arms 176 and 177, respectively, and a heat sink 175 is provided opposite to these adjustment notches 176b and 177b. Adjustment holes 175a and 175b are provided at predetermined positions on the top, and an adjustment jig 20 shown in FIGS. 24 and 25 is provided.
Use 0.

Then, when making adjustments, turn each of the above screws 196° and 197°.
, 198. Loosen the 199 a little.''-Heat sink 17
5 to be movable relative to the head arms 176, 177, the tip 200a of the adjustment jig 200 is fitted into the adjustment hole 175a or 175b, and the adjustment piece 200tl of the adjustment jig 200 is fitted into the adjustment hole 175a or 175b. Insert it into the adjustment notch 116b177b and rotate it left and right.

As a result, the thermal head 2 is connected to the heat sink 1.
Each heating element 190 moves relative to the head arms 176 and 177 together with the platen roller 75.
can be adjusted in 9 positions in the axial direction.

And after adjustment, the above screw 196.197.198.1
99 to finish the adjustment work.

In this embodiment, adjustment notches 176b and 177b are provided in the helad arm 176□177, and adjustment holes 175a and 175b are provided in the heat sink 175, but it goes without saying that this installation relationship may be reversed.

Next, a radial adjustment method will be explained.

Adjustment in the radial direction means that the heating elements 190 arranged in a straight line on the ceramic substrate 2a do not have linearity accuracy in the thickness direction, or that the outer peripheral surface of the platen roller 1 is out of roundness. This is done because, if not, the contact pressure of each heating element 190 with respect to the platen roller 1 would be partially different, resulting in uneven contact.

This adjustment is performed by screwing the setscrews 201, 202, 203 into screw holes provided in the heat sink 175, and pushing the thermal head 2 by screwing the setscrews 201, 202, 203 forward and backward.

In other words, by tightening one of the set screws screwed into a position close to a portion of the heating element 190 that has poor contact, the ceramic 1i of the thermal head 2 can be removed.
Adjustment is performed by elastically deforming 2a in the vertical direction in FIG. 23, which is the thickness y of the substrate.

Please note that this adjustment is done using screws 196.197.198.199.
and 192, 193, 194, and 195 are all tightened.

As mentioned above, each of the above adjustments can be performed using the simple adjustment jig 200.
Since all the steps can be performed from the upper side of the thermal head 2 using the above, it can be performed in the final process after all the devices have been assembled on the production line, and work efficiency can be significantly improved.

Further, since fine adjustment can be made using the simple adjustment jig 200 as described above, the accuracy of mounting the thermal head 2 can be increased, and thereby the printing condition can be improved.

In addition, in the present 8N structure, the rotation direction of the platen roller 1 with respect to the thermal head 2 during recording is the 23rd direction.
In the figure, the direction is from the heating element 190 side to the driver board 2b side, that is, in the clockwise rotation direction in the figure, and this is the opposite direction to the rotation direction of the platen roller 1 in the normal usage method.

When recording in the normal rotation direction of the platen roller with this mechanism, that is, when printing by rotating the platen roller 1 counterclockwise, when feeding the recording paper K, the upper direction of the platen roller 1 is The clamper 172 is placed in position, and the recording paper K is fed toward it.

On the other hand, when recording is performed by rotating counterclockwise as in normal usage, the clamper is located in the paper discharge path (235 in FIG. The paper must be fed so that it slides under the paper.

Since the recording surface of the recording paper must face outward and face the thermal head 2 when clamped by the platen row 51, the recording surface of the recording paper must be placed in the cassette 20 with the recording surface in contact with a paper feed roller 230, which will be described later. must be stored in.

For this reason, when feeding paper, the recording surface may be smeared by the paper feeding roller 230, resulting in a problem of deterioration of printing quality.

In addition, if the rotation direction of the platen roller 1 during recording is set to the 31-hour rotation direction as in this mechanism, and the horizontal head 2 is reversed left and right and attached to the head arm 176, the rotation of the platen loaf relative to the thermal head during recording is possible. The direction is the same as the normal usage, but the problem is that the head arm itself becomes bulky and the thickness of the old machine is quite thick.

Therefore, the heating element 1 of the thermal head 2 as in this embodiment
By rotating the platen roller 1 from 90 toward the driver board 2b, the apparatus can be made thinner and the reliability of paper feeding can be improved.

Next, the recording paper K stored in the installed cassette 20
The configuration of the paper feed/discharge unit (7) for feeding the recording paper K into the apparatus main body and ejecting the printed recording paper K out of the apparatus main body is shown in FIGS. 20, 26, and 27. Explain in detail.

Figures 26 and 27 are drawn from Figure 20 by the arrows in Figure 20.

It is a view seen from the E direction.

First, in FIG. 20, 210 is a guide plate, which guides the recording paper when it is fed or discharged.

Further, a guide shaft 211 is rotatably provided at the tip of the guide plate 210 to guide the traveling of the transfer paper T, and a predetermined position near the paper feeding path for the recording paper A recording paper detection sensor Swa for detecting K is provided.

212 is a paper feed port that guides the recording paper K to the platen roller 1, and 213 is a paper discharge port.

214 is a paper feed/discharge drive gear, and this paper feed/discharge drive gear 2
14 is a feeding paper drive gear 73 on the drive base 39
The drive motor 40 is engaged with the gear 46 and the like.
rotational driving force is transmitted (see FIGS. 6 and 7).

Further, the paper feed/discharge drive gear 214 meshes with a paper feed gear 215 as shown in FIG. 26, and also meshes with a paper discharge gear 216 as shown in FIG.
The driving force from the drive motor 40 is distributed and transmitted to the drive motor 16.

In addition, in FIG. 26, the paper feed gear 215 is shown.

- An in-shell one-way clutch mechanism 215a is provided, and this one-way clutch mechanism 2158 allows
The rotational force of the paper feed gear 215 in the clockwise direction in FIG.
The rotational force in the 4-turn direction, that is, the rotational force for discharging the paper, is not transmitted to the paper feed shaft 215a.

The rotation of the paper feed shaft 215a drives the paper feed roller 230 via other paper feed gears 218, 219, and 220, as shown in FIG.

As described above, since only the rotational force for feeding paper is transmitted to the paper feed shaft 215alC$ by the one-way clutch mechanism 217, the paper feed roller 230
is rotated in the paper feeding direction only when paper is being fed, and is not rotated when paper is being ejected.

On the other hand, as shown in FIG. 27, the paper discharge gear 216 rotates integrally with the paper discharge shaft 231.
A pair of lower paper ejection rollers 232232 are attached to both ends of the paper ejection rollers 232.31. rotates integrally with the paper discharge shaft 231.

Further, upper paper ejection rollers 233, 233 are in rolling contact with these lower paper ejection rollers 232, 232, respectively, and these upper paper ejection rollers 233, 233 are supported by leaf springs 2 as shown in FIG.
34234 above lower new paper roller 232.232
are pressed respectively.

The recording paper on which printing has been completed is held between the upper and lower paper ejection rollers 232, 233, and passes through the paper ejection path 235 (second
(See Figure 0) and is discharged to the outside of the apparatus from the paper discharge outlet 236.

Further, in FIG. 26, 237 is a paper feed roller control gear, which meshes with the gear portion 115C of the paper feed roller control lever 115 provided on the drive base 39 (see FIGS. 7 and 11). The paper feed roller control gear 237 rotates as the spindle control slider 88 moves.

The rotation of the paper feed roller control lever 115 in the direction of rotation 31 during paper ejection is transmitted to the paper feed roller control gear 237, and further the shaft 23
8 and rotates another paper feed roller control gear 239.

This gear 239 rotatably holds the paper feed roller 230 and meshes with a sector gear 240a formed on a paper feed roller bracket 240 that is pivotally supported by the paper feed shaft 215a.

As a result, the paper feed roll bracket 240 rotates about the paper feed shaft 215a in conjunction with the rotation of the paper feed roller control lever 115, and the paper feed roller 230 moves the recording paper stored in the cassette 20. Press against K.

Note that such a pressing operation of the paper feed roller 230 against the recording M1K is performed in conjunction with the loading operation of the take-up transfer paper roll 27 after the cassette 20 is installed in the main body of the apparatus.

In addition, in FIG. 21, 241 and 242 are the cassette 2
When installing the cassette 20 into the main body of the device, the inserted cassette 20
This is a cassette guide that guides you through the process.

Further, in FIG. 20, reference numeral 247 is an optical cue sensor for cueing the transfer paper (2), and this sensor 247 is fixedly attached to a sensor bracket 248.

Here, the placement position of this cue sensor 247 is near the contact position between the platen roller 51 and the thermal head 2, and on the near side of the guide shaft 249 that first guides the transfer paper T that has passed through the platen roller 1. By arranging the sensor 247 at such a position, each of the transfer paper rolls 27.
The influence of the change in the path of the transfer paper T due to the change in the winding diameter of 28 can be eliminated.

As a result, according to this embodiment, the cue sensor 2
The relative distance between 47 and the bottom of the transfer paper can always be kept constant at a close position.

The cueing sensor 241 is a sensor having a color identification function in which a light emitting part and a light receiving part are integrally formed, and the light emitted from the light emitting part is reflected by a reflection sensor provided in a part of the thermal head 2. The light is reflected by the plate 250 and detected by the light receiving section.

The transfer paper T coated with rope ink forms a predetermined running path passing between these sensors 247 and the reflection plate 250, and the color ink applied to the transfer paper T by the cue sensor 247 is The cue for each color of ink is determined by detecting the color of the ink.

Here, when using the optical cue sensor 247 as described above, it is necessary to make this sensor 247 and the reflection plate 250 face each other with the transfer paper T interposed therebetween, and also to prevent the loading of the transfer paper 'F'. In some cases, the loading aisle must be kept to a certain extent.

Therefore, by attaching the reflector 250 to the thermal head 2 as in this embodiment, it is possible to make it far away from the cue sensor 247 during loading, and to bring it close to the sensor 247 after loading is complete. In addition, there is no need for a special bracket or the like for attaching the reflecting plate 250.

It goes without saying that the positional relationship between the cueing sensor 247 and the reflecting plate 250 may be reversed.

Cassette Lock Mechanism> Next, a cassette lock mechanism that accurately locks the cassette 20 inserted into the apparatus main body at a predetermined position will be described in detail with reference to FIG. 1 and FIGS. 27 to 30.

First, when inserting the cassette 20, as shown in FIG. to a predetermined position within the main body with high precision.

When the cassette 20 is inserted all the way, a cassette detection switch (not shown) detects that the cassette 20 has been inserted, and at the same time, the cassette locking mechanism operates to lock the inserted cassette 20.

The cassette locking mechanism in this embodiment is roughly composed of a hold lever 243, a cassette lock lever 245, and an eject lever 246. 243, and release the locked state using the lever 246.

That is, the cassette lock lever 245 has a hook 245C formed at its tip that engages with the lock hole 26 of the J set 20, and a locking portion continuously formed at the other end. 245a, 245b are formed,
A midway portion thereof is supported by a shaft 245d.

Further, the hold lever 243 has a tip protrusion 243a formed at one end thereof that contacts the locking rib 25 of the inserted cassette 20, and a hold lever 243a that selectively engages with each of the locking portions at the other end. A portion 243C is formed,
A midway portion thereof is supported by a shaft 243b.

The hold lever 243 prevents rotation of the cassette lock lever 245 by selectively engaging the holding portion 243C with each locking portion 245a, 245b of the cassette lock lever 245. This is to maintain a locked state or an unlocked state, respectively.

The maintenance of each state by the hold lever 243 is canceled by inserting the cassette 20 or by the eject slider 246.

That is, the horn set locking rib 25 provided in the groove 24 for preventing erroneous insertion pushes the tip projection 243a of the hold lever 243, and this hold lever 243 is pushed by the spring 2.
44 and tries to rotate clockwise in FIG. 1 about the rotation axis 243b.

On the other hand, at the stage of inserting the cassette 20, the sawset lock lever 245 is biased clockwise in the figure about its rotation axis 245a by the spring 244, 245a and the hold portion 243C of the hold lever 243 are in contact with each other, so that their rotation is blocked (the state shown in FIG. 1).

By inserting the cassette 20 in this state, the tip projection 243a of the hold lever 243 is inserted into the cassette 20.
The cassette lock lever 245 is pushed by the locking rib 25 and rotates in the direction of Ri1 in FIG. At the same time as being released, this holding portion 243C comes into contact with the second locking portion 245b of the cassette lock lever 245.

As a result, the cassette lock lever 245 is
As shown in FIG. 8, the cassette lock lever 245 is rotated clockwise so that the hook 245c provided at the tip of the cassette lock lever 245 enters the cassette lock hole 26 provided in the groove 24 for preventing incorrect insertion of the cassette 20; In other words, the cassette 20 is locked to the main body of the apparatus.

This state is maintained by the contact between the holding portion 243C and the second locking portion 245b of the cassette lock lever 245.

FIG. 29 is a new view of the groove 24 for preventing incorrect insertion, and FIG.
0 is a view of FIG. 28 viewed from the direction of arrow F.

As shown in FIG. 30, since the cassette locking mechanism is constructed integrally with one of the cassette guides 241 that guides the cassette 20, it is easy to position the cassette locking mechanism with respect to the cassette 20 with precision, and the cassette 20 is held in a predetermined position. Can be locked precisely in position.

In addition, as shown in FIG. 29, the cassette lock lever 24
Since the operating angle (pressure angle) α of the lock with respect to the rotational fulcrum O of cassette lock lever 5 is 90”, this cassette lock lever 2
45 has the maximum locking strength.

When taking out the locked cassette 20 from the main body of the apparatus, that is, when ejecting it, the spindle control slider 88 in FIG.
The eject slider 246 is moved to the right in the same figure.
This is done by moving the .

That is, in FIG. 28, the left end of the eject slider 246 is engaged with the pin 245e provided on the cassette lock lever 245, and the cassette lock lever 245 is rotated by the spring 244 in a four-turn direction. The eject slider 246 is biased toward the left in the figure by the engagement relationship described above.

When ejecting, the eject slider 246 moves as the spindle control slider 88, which engages with the tip projection 246a of the eject control slider 246 (see FIG. 11), moves, thereby locking the cassette lock lever. -245 rotates once in the y-direction in the figure.

This rotation in the anti-Japanese pulling direction causes the hook portion 245c at the tip of the cassette lock lever 245 to lock onto the cassette 2.
Remove the cassette 2 from the cassette lock hole 26 of
0 is ejected.

At the same time, the protrusion 243C of the hold lever 243 and the first locking part 245a of the cassette lock lever 245 come into contact again, and the cassette lock lever 245 is moved to the fully rotated position (first position) in the anti-Japan S1 direction. Shape R shown in Figure 1
).

As described above, in this embodiment, the cassette locking mechanism having the above-mentioned configuration is installed in the cassette guides 241 and 24.
2, the inserted cassette 20 is placed at a predetermined position, that is, the reference position δ at the start of loading.
It can be locked accurately and reliably.

Furthermore, in the cassette lock mechanism configured as described above, the hold lever 243 and the cassette lock lever
245, it is possible to prevent only one of the members from malfunctioning.

Next, a series of operations from mounting the above-mentioned cassette to the main body of the apparatus and performing printing until the printed recording paper is wasted will be described.

This mechanism has six mechanism modes: visit mode, set mode, loading mode, standby mode, ready mode, and print mode, and each mode is controlled by the rotational position of control cams 70 and 77.

That is, the relationship between the relative angular position To-Ts of the control cam gear 76, 77 with respect to each bin etc. as shown in FIG. 10 (A) CB) and the six mechanism modes described above is based on the cam line shown in FIG. The settings are as shown in the figure, and as the control cam gear 7677 rotates, the mode shifts to set mode, loading mode, ready mode (initial cueing mode), and standby mode, and is temporarily on standby in this mode.

In this state, hold the print switch or ink switch, and when the print switch is operated, the mode advances to ready mode and print mode, and when printing of each color is completed, it shifts to standby mode again. As soon as the recording paper is ejected, the machine goes into standby mode again.

Further, when the eject switch is operated in this standby state, the device shifts to the eject mode and ejects the cassette 20, and then returns to the set mode again to complete the series of operations.

These mode states are determined by a first mode detection switch Sw1, which is turned on and off by the rotation of the loading gear 91 (see FIG. 6), and a second mode detection switch Sw1, which detects the slit 77b of the control cam gear 76, 77. Third mode detection switch Sw2, 5w3 (see Figure 15)
A mechanical controller (not shown) performs detection based on each detection output.

Also, the mode motor 75 that rotates the control cam gears 76 and 77 and the drive motor 40 that drives the transfer paper or feeds and discharges the recording paper are started and stopped.
The rotation direction is determined by the first to third mode detection switches Sw1 to Sw3, the recording paper detection sensor Sw4 that detects the insertion of recording paper, the cassette detection switch that detects the attachment (locking) of the cassette 20, and each color of transfer paper. It is controlled by a mechanical controller (not shown) based on the detection outputs of a cue sensor 247, the amount of rotation of the blanking roller 1, and the operation of a print switch.

Each mechanism mode will be explained below.

(Set Mode) The set mode is a standard mode in which the cassette 20 can be installed, and is the initial mode of this device.

In this set mode, the angular positions of the control cam gears 76 and 77 are between T2 and T3 in FIG. 31, and in this mode, the spindle control slider 88, mode control slider 89, The spindle controller 140 is
They are stopped at the positions shown in FIGS. 17 and 15, respectively.

Further, as shown in FIG. 32, a loading arm 160
, 161 are regulated by a position regulating piece 166 of the inch frame 3.4, and the thermal head 2 is located at a considerable distance from the platen row 51.

In this set mode, by inserting the cassette 20 into the main body of the apparatus as shown in FIG.
9 is inserted into the rhodein' 17-me 160, 161 Novus 160b, 16Ib inserted into the cassette 2o and is held therein.

In this state, as shown in FIG. 33, the supply side spindles 62, 142 on the apparatus side
8 has not yet been fitted, and the clamper is closed.

(Loading Mode) In this loading mode, the spindle is fitted to each transfer paper roll 27, 28 stored in the cassette 20, the transfer paper T is loaded, and the recording paper stored in the cassette 20 is loaded. Pressing of the supply roller 230 is performed, and the angular position of the control cam gears 76, 77 is rotationally shifted from T3 to T7 in FIG.

First, when the cassette 20 is securely installed and the cassette lock mechanism operates, the cassette detection switch is turned on and the mode motor 75 is started at T3 in FIG.
) Control cam gear 7G above.

77 in the forward direction, that is, in the four-clockwise direction in FIG. 6, or in the directions of the arrows in FIGS. 10(A) and 10(B).

The rotation of the control cam gears 76 and 77 due to the start of the mode motor 15 causes the spindle control slider 88 to move to the left in FIG. 11, and the sub spindle control slider 14 (l to the left in FIG. move only.

This movement causes the spindle control gear 76 to move on the main frame 5 side, as shown in FIGS. 34 and 35.
Due to the movement of the spindle control slider 88 as the spindle control slider 88 rotates, the supply-side spindle control arm 128 is mounted on the inclined part of the cam portion 88e of the spindle control slider 88, and rotates counterclockwise in the figure.・The supply side spindle 62 is directed upward in the figure (fitting direction).
Move to.

As a result, the spindle 62 fits into the transfer paper reel 32 on the supply side as shown in FIG. 36 (T4 in FIG. 31).

Similarly, on the other main frame 6 side, the supply steel sub-spindle arm 145 rotates, and the supply side sub-spindle 142 fits into the other transfer paper reel 32 on the supply side, as shown in FIG. As such, the supply side transfer paper roll 28 is held securely and positioned with high precision.

On the other hand, the spindle control arm 129 and sub-spindle control arm 146 on the winding side
Since the rollers 129c and 146b are in contact with the cam portion 88f of the spindle control slider 88 and the parallel portion of the sub-spindle control slider, no rotational movement is performed at this point.

When the control cam gears 76 and 77 rotate roughly, the notched gear 76d provided on the back side of one of the control cam gears 76 meshes with the notched gear 90a provided on the timing gear 90'-, and the rotation of the timing gear 90 is caused by the loading gear. 91, 92 (see FIG. 6), another O-ding gear 93164 coaxial with the loading gear 92 (see FIG. 19), and a loading arm 160.

161 to each gear section 160a, 161a.

As a result, the loading arms 160 and 161 rotate as shown in FIG. 37, and the take-up transfer paper roll 27 is pulled out from the cassette 20.

At this time, the supply side transfer paper roll 28 is attached to the spindle 6214.
2, the transfer paper T wound around the take-up transfer paper roll 27 is unwound and the transfer paper T is fed out.

Here, the direction in which the take-up transfer paper roll 27 unravels and rotates is clockwise in FIG.
Since the direction is such that the transfer paper roll 21 on the winding side tries to bite into the back of the mouse 160 during loading,
b, 161b.

When the loading arms 160, 161 further rotate, each loading arm 160, 161 rotates as shown in FIG.
The midway part in the longitudinal direction of 161 is the head arm 176, 1
77 (bottom side in FIG. 18) and is positioned at the lowing completion position, and is further pressed by a compression spring (not shown) provided inside the timing gear 90. After that, the notched gear 76d of the control cam gear 76 and the notched gear 90a on the timing gear 90 are disengaged, and only the control gear 76 rotates to move the spindle control slider 88.

In addition, at the stage where such loading is completed, the winding-side transfer paper roll 27 supported by the loading arms 160 and 161 is moved to the rear arm 176,
It is located near the proximal end of 177.

When the rotation of the loading arms 160 and 161 is completed (T5 in FIG. 31), the spindle control arm 129 moves to the cam portion of the spindle control slider 88 on the main frame 5 side, as shown in FIGS. 39 and 40. The take-up spindle 61 rotates along the inclined portion 88'' in the anti-Japanese girth direction in the figure, and the take-up spindle 61 moves upward in the figure (fitting direction).

As a result, the spindle 61 fits into one of the transfer paper reels 31 on the take-up side (-"7" in FIG. 31).

Similarly, on the main frame 6 side, the take-up side sub-spindle arm 146 rotates, and the take-up side sub-spindle 141 rotates.
is fitted to the other transfer paper reel 31 on the winding side.

Therefore, as shown in FIG. 41, at this stage, the winding side transfer paper roll 27 also has the spindles 6 fitted on both ends thereof.
1, 141 and is positioned.

Further, when the rotation of the loading arms 160, 161 is completed (T5 in FIG. 31), the clamper 172 opens as the mode control slider 89 moves in conjunction with the rotation of the control cam gear 76, and the clamper 172 opens. Rad arms 176 and 177 rotate, thereby bringing thermal head 2 close to platen roller 1 (-[6 in FIG. 31).

This completes a series of loading dynamics, but the spindle control slider 88 accompanying this loading
As described in FIG. 11, the bent portion 111C of the paper feed roller control plate 111 rotates the paper feed roller control lever 115 in the counterclockwise direction in FIG.

This rotation is transmitted by the gear portion 115c to the paper feed roller control gear 237 provided on the paper feed/discharge unit 7 shown in FIG.

As a result, the bracket 2 that supports the paper feed roller 230
40 rotates, and the paper feed roller 230 is brought into pressure contact with the recording paper K in the cassette 20, as shown in FIG.

The traveling path of the transfer paper T after loading is the fourth one.
As shown in FIG. 2, a guide shaft 211 and a sensor bracket 24 provided on the guide plate 210 of the paper feed/discharge unit 7
A guide shaft 249 provided at 8 guides the platen roller 1 and the transfer paper T so that they do not come into contact with each other.

In addition, since the cue sensor 247 is disposed between the guide shaft 249 and the guide shaft 211, even if the roll diameters of the supply side transfer paper roll 28 and the winding side transfer paper roll 21 change, the cue sensor 247 The distance between the sheet T and the transfer paper T does not change, and the cue sensor 247 does not malfunction.

(Ready mode) In the ready mode at this stage, the thermal head 2
is brought close to the platen roller 1, and the initial cue of the transfer paper T pulled out from the take-up transfer paper roll 27 is performed, and the angular position of the control cam gears 76 and 77 is set from TI to just before T8 in FIG. Head rotation changes.

First, after loading is completed, control cam 7
6 and 77 further rotate in the normal direction, and reach the ready mode via the standby mode provided in the middle.

Then, the ready mode is detected by the detection outputs of the mode detection switches Sw, to Sw3, and the mode motor 75 is temporarily stopped.

FIG. 43 shows a mechanical diagram of the horn set 20, platen roller 1, and thermal head 2 in the ready mode.

After the loading is completed, the head arm 176177 holding the thermal head 2 rotates as described above, thereby bringing the thermal head 1 close to the platen roller 1.

Further, as shown in FIG. 44, the mode control slider 89 on the main frame 5 is in a state of being fully moved to the left in FIG. The power is transmitted to the transfer paper drive system and also to the rank 97 of the rack plate 97.
Since C is not engaged with the clamp control gear 102, the clamper 172 is closed.

In this state, the first color cycle of the transfer paper °r is
Initial cueing for the color (yellow) is performed.

This initial cueing is performed by winding up the transfer paper T by rotating the drive motor 40 in the normal direction to rotate the winding-side transfer paper roll 27 after detecting that it is in the ready mode.
This is performed by the cue sensor 247 detecting a mark corresponding to the first color, yellow.

Here, the cue sensor 247 is provided with a light emitting part and a light receiving part, and the light emitted from the cue sensor 247 is transmitted through the transfer paper T, reflected on the reflection plate 250 provided on the thermal head 2, and returned. The light receiving section receives the reflected light and detects each color based on changes in the reflected light.

By providing the reflector 250 on the thermal head 2, there is no need for a special bracket for attaching the reflector 250, and the cueing sensor 247 and reflector 250 can be attached to the transfer paper.
efficiently confront each other through

When the cueing sensor 247 detects that the cueing of the transfer paper is completed, the drive motor 40 stops, the mode motor 75 reverses, and the control cam gear 76
．． 77 rotates in the anti-Japanese direction to enter the standby mode, and when the standby mode is detected, the mode motor 15 stops.

(Standby Mode) The standby mode is a standby mode in which the mechanism waits until the next operation, and the control cam gears 7G and 77 are reversed in order to transition to the standby mode.

FIGS. 45 and 46 show mechanical diagrams in this standby mode.

As shown in FIG. 46, in the standby mode, the mode control slider 89 is moved to the right in the figure, and the power of the drive motor 40 is transmitted to the paper feed/discharge drive system, and the rack 97c of the rack plate 97 is The clamper 172 is opened as shown in FIG. 45 in order to engage with the clamp control gear 102 and rotate the clamp off arm 168 counterclockwise in the figure.

In this state, the printer waits until the print switch or eject switch is operated.

(Print mode) In this print mode, each color is printed on recording paper, and the control cam gears 76, 77
rotates forward and reaches "9" in Figure 31.

First, when the print switch is operated in standby mode, the drive motor 40 rotates in the normal direction and paper is fed.

That is, the paper feed roller 230 that is in pressure contact with the recording paper K rotates clockwise, and only one recording paper K in the cassette 20 is fed out. At this time, since the paper feed roller 230 is in contact with the back surface of the recording paper (the side opposite to the recording surface), it is possible to prevent the paper feed roller 230 from damaging the recording surface of the recording paper.

As shown in FIG. 47, the leading edge of the recording paper
When the recording paper is conveyed through the No. 0 paper feed port 212 to the clamper 172, the recording paper detection sensor Sw provided on the guide plate 210
a detects the recording paper K, the rotation of the drive motor 40 is stopped, and paper feeding is stopped.

Next, the mode motor 75 rotates in the normal direction, and the control cam gears 7G and 77 rotate in the direction of one rotation, and when the ready mode state is again established, the mode motor 75 temporarily stops.

By changing to this ready mode, the clamper 172 closes as shown in FIG. 48, and the leading edge of the recording paper is securely clamped to the platen roller 1.

When the recording paper K is clamped, the platen drive motor
155 is activated, and the platen roller 1 rotates normally (rotates in the rotation direction during printing).

When the platen roller 1 rotates for a predetermined period and the clamper 172 passes the thermal head 2, the mode motor 75 is rotated normally again by detecting the amount of rotation of the platen roller 1 at that time (To in FIG. 31).

As a result, the control cam gears 76 and 77 rotate in the rotating direction again, and as shown in FIG. Platen roller 1 along with the recording paper
T9 in Fig. 31), mode motor 15
stops and enters print mode.

Here, the crimping operation of the thermal head 2 will be explained.

First, as explained earlier, head arm 176177
is supported by two pairs of toggle link mechanisms, and is in set mode (
In the initial state), each toggle link mechanism is in a contracted state, but in the print mode shown in FIGS. 49 and 50, these two pairs of toggle link mechanisms are expanded by the rotation of the control cam gear 76°77. state.

That is, the cam roller 18 of the main drive side toggle link 186
6a is moved by the rotation of the control cam gear 76, and the main drive side toggle link 18G is rotated counterclockwise in FIG. This rotation causes the driven side toggle link 18
9 pushes up the main toggle link 181 on the driving side, and the main toggle link 181 on the driving side rotates in the direction of 51 around the rotation axis 182a.

This rotation of the driving side main toggle link 181 causes the driven side main toggle link 180 to move to the head arm 176.
Rotate the head arm 177 in the anti-Japanese direction four times and turn the head arm 176.
．． The thermal head 2 attached to 177 contacts the platen roller 1.

Further, since the main toggle link 186 on the driving side rotates and the main toggle link 181 on the driving side also tries to rotate, the spring lever 182 resists the spring 183 and rotates on the rotation shaft 186.
It rotates around 84 in the direction of anti-Japanese 31 and leaves the stopper screw 185.

Therefore, the force of spring 183 is applied to spring lever 182,
The thermal head 2 is connected to the head arm 1 via the main toggle link 181 on the driving side and the main toggle link 180 on the driving side.
Together with 76 and 177, it acts as a pressing force against the platen roller 1, and the head is brought into a crimped state.

The driving force for crimping the head is due to the rotational force of the control cam gear 76 that rotates the main drive side toggle link 186. Since it is supported, a sufficiently large pressing force of the thermal head 2 against the platen roller 1 can be obtained with a small driving force.

As a result, the mechanical strength of each part does not need to be high, and the torque of the mode motor 75 does not require a large torque, so it is possible to make the machine smaller and more spacious, and to reduce costs. You can also try it out.

Further, as described above, the platen roller 1 continues to rotate with the thermal head 2 pressed against the platen roller 1, and printing of the first color (yellow) is performed.

During this time, the drive motor 40 rotates normally and winds up the recorded transfer paper 20 onto the winding-side transfer paper roll 27.

Here, the transfer paper roll 2 on the winding side in the print mode
The rotating direction of the platen loaf 7 is opposite to the rotating direction of the platen loaf 1 during recording, that is, the direction in which the ink surface of the transfer paper T is on the outer peripheral surface side.

As a result, the travel path of the transfer paper 20 around the platen roller is changed to the above-mentioned rad arm 1 as shown in FIG.
To avoid 76.177, the dead space around this arm is reduced.

Therefore, the loaded transfer paper T and head arm 1
76177 Since there is no interference, the machine can be made smaller.

Also, during this printing, the tip of the recording paper is held by the clamper 11.
2, but the rear end is not fixed, so the loading end shaft 165 and the loading shaft 162 guide the recording paper K and prevent it from becoming unintentionally loosened.

When the recording of the first color is completed, the amount of rotation of the platen roller 1 is detected and the mode motor 75 is reversed again to return to the ready mode state.

As a result, the pressure bonding of the thermal head 2 is released and the second
The magenta cue is 11, and the clamper is 17.
2 passes through the thermal head 2, it is pressed again and printing of the second color is performed.

After completing the printing of the third color (cyan) using the same operation (if necessary, after completing the printing of the fourth color (black) using the same operation), switch from print mode to ready mode and move the thermal head 2. The pressure bonding is released, and then the paper ejecting operation is performed.

That is, the platen roller 51 rotates in reverse, and as shown in FIG. .

After the platen roller 1 stops at the initial position, the mode is changed from the ready mode to the standby mode, and the clamper 172 is activated as shown in FIG. open.

Next, when the drive motor 40 is reversed, one fA paper roller 232 rotates counterclockwise in FIG. , 233 passes through a paper discharge path 235 and is discharged to the outside of the apparatus from a paper discharge outlet 236.

Here, due to the rotation (reverse rotation) of the drive motor 40 during paper ejection, the paper feed roller 230 attempts to rotate counterclockwise, but the one-way clutch mechanism 217 explained in FIG. 26 prevents the paper from being fed. The transmission torque transmitted to the roller 230 is extremely small and does not drive (reverse feed) the recording paper in the cassette 20.

By the way, the above-mentioned paper ejecting operation is when using standard size recording paper for this machine.
In the figure, the distance from the clamper 172 to the paper discharge rollers 232 and 233 is set to match this standard size recording paper.

However, when printing on recording paper larger than the standard size (recording paper that is longer than the full length of the standard size recording paper within the range that wraps around the platen roller 1), the distance between the clamper 172 and the paper ejection rollers 232 and 233 Since the distance is short, the recording paper will break during the paper cultivation operation as described above.

Therefore, the paper ejecting operation when using enlarged rise recording paper is somewhat different.

Next, the paper ejecting operation when using such enlarged size recording paper will be explained using Fig. 53. 3. When using enlarged size recording paper, use the enlarged size cassette. However, this is because the part of the standard rise cassette 20 that stores the recording paper is longer, and the cassette is formed with an instruction section for indicating the type (size) of the recording paper. The attachment of the cassette to the main body mechanism, loading, positioning of the transfer paper, feeding of the transfer paper, and recording operations are performed in exactly the same manner as for standard rise recording paper.

When the recording of the third color on the enlarged size recording paper K is completed, the mechanism shifts from the print mode to the ready mode to the standby mode, and as a result, the clamp-off arm 162 moves to the position shown in FIG. The clamper 172 is rotated in the direction around N1 to open the clamper 172.

Further, along with such a mode transition, the driving force of the drive motor 40 is connected to the paper feed/discharge drive system, and
The rotation is reversed, and the waste paper rollers 232 and 233 are rotated in the paper discharge direction as described above.

On the other hand, when the platen roller 1 starts to rotate in reverse with the transition to standby mode, the trailing edge of the enlarged size recording paper enters the paper ejection port 213, and then the paper ejection roller 232
, 233, the ejection roller 232.23
3 pulls the recording paper K whose leading end is fixed by the clamper 172 in an attempt to clamp it.

This tensile force is applied to the slip clutch mechanism (felt 7 in FIG.
Since it is a constant force,
The clamper 172 does not apply excessive force to the recording paper K.
The recording paper K is continuously pulled between the paper discharge rollers 232 and 233 to prevent it from loosening or folding.

When the platen roller 1 further reverses and returns to the initial position, the clamp lever 170 comes into contact with the roller 169 of the clamp-off arm 168, as shown in FIG.
72 is heard and the paper is ejected onto the recording paper.

Then, when the recording paper has been ejected, the i-section returns to ready mode, and after locating the first color of the next color recycle, it shifts to standby mode, and the print switch or eject switch is operated. It will be on standby until.

<Eject mode> When the eject switch is pressed in this standby state, the control cam gears 76 and 77 are reversed, and the take-up transfer paper roll 27 is unloaded back to the transfer paper storage section of the saw set 20.

This unloading operation is the opposite operation to the loading operation, so a detailed explanation will be omitted, but during unloading, the drive motor 40 drives the supply side spindle 62 at a predetermined speed, thereby moving the supply side transfer paper reel 25.
is driven, and the transfer paper T drawn out onto the platen roller 1 is rewound onto the supply side transfer paper roll 28.

Here, the rotational speed of the supply side spindle 62 is set to a speed slightly faster than the rotational speed of the take-up side roll 21 during one loading (speed due to unwinding the pre-wound transfer paper), As a result, the amount by which the transfer paper r is rewound is determined by the loading on the winding side roll 27.
There should be a slightly larger amount of transfer paper than the one pulled out.

By unwinding a large amount in this way, the used transfer paper is wound around the outer periphery of the supply side transfer paper roll 28 on which unused transfer paper is still wound, and the unused transfer paper is wound. It can prevent dust and condensation from occurring.

When the take-up transfer paper roll 27 is returned to the transfer paper storage section of the cassette 20 by unloading as described above and the mechanism returns to the set mode, the control cam gears 76 and 77 are further reversed and temporarily stopped in the eject mode. (T+ in FIG. 31).

In this eject mode, the cassette 20 is unlocked by the cassette locking mechanism, and the cassette 20 can be taken out from the main body of the apparatus.

Thereafter, the mode motor 75 rotates normally again to shift to the set mode (T2 in FIG. 31), thereby ending the series of operations.

By the way, the major feature of this mechanism that performs the series of mechanical operations described above is that the loading operation of pulling out the transfer paper roll 21 from the cassette 20 and the unloading operation of returning the transfer paper roll 27 into the cassette 20 are performed. There is a particular thing.

Here, when loading, as mentioned before),
Since the transfer paper roll 27 on the winding side is unraveled and the transfer paper is pulled out, in the initial state of the cassette 20 (when the cassette is lifted and shipped), the transfer paper core 30 on the winding side
In addition, it is necessary to wrap in advance a length of transfer paper that is longer than the length that will be pulled out during loading.

Furthermore, when loading is completed, the first color of the transfer paper color cycle, yellow, is moved to the beginning of the first color of the transfer paper color cycle. Length to first color L
need to be selected optimally.

If L is too long, it will take time to cue, and if it is too short, if you eject and unload immediately after cueing, excess transfer paper will be rewound onto the supply transfer paper roll 28. This is because the amount of transfer paper wound around the transfer paper core 30 on the winding side decreases, making it impossible to load the transfer paper again.

In FIG. 54, the length of the transfer paper pulled out by loading is 91, and the length from the beginning sensor 247 to the transfer paper core 30 on the winding side is χ, and as shown in FIG. If the length from the position where the transfer paper core 30 is clamped to the first color of the first color cycle is the extra unwinding time during L1 unloading, then the transfer paper is adjusted so that L = -a + ρ + χ. All you have to do is wrap 1゜Here, 1
The length of is wound on the winding side transfer paper core 29 in advance,
Depending on the loading, the length of ρ is the transfer paper core 29 on the winding side.
All of the sheets are unraveled from the beginning, and (a+jl) are wound onto the winding-side transfer paper core 29 during the subsequent cueing.

In addition, the skewer that is rewound to the supply side transfer paper roll 28 when unloading is performed after the completion of the cueing is the transfer paper length 1 pulled out onto the platen roller and the extra rewound from the winding side transfer paper core 29. Since the length is a, even after unloading, the transfer paper core 29 on the winding side is wound with a length ρ, which is the same as the initial state of the cassette.

As described above, it is possible to optimize the length p from the winding-side transfer paper core 29 to the first color of the transfer paper winding start force ray cycle.

In this mechanism, the direction of rotation of the platen roller 1 relative to the thermal head 2 during recording is from the heating element 190 side to the driver board 2b side, that is, clockwise, as shown in FIG.

This is contrary to the normal usage of this type of flat plate type thermal head 2.

When recording in the normal rotating direction of the platen roller 1 in the main structure, that is, when recording in the counterclockwise direction, when feeding the recording paper K as shown in FIG. The clamper 112 is positioned in the direction, and the recording paper K is fed toward it. When performing counterclockwise recording, the clamper is positioned near the tip of the arrow P in FIG. 47, and the recording paper is fed in the P direction. Paper must be fed.

In this case, the surface of the recording paper to be recorded is placed on the paper feed roller 23.
Since the paper must be stored in the cassette 20 in a direction that touches the paper, there is a problem in that the recording surface is stained by the paper feed roller 230 during paper feeding, resulting in a decrease in printing quality.

In addition, if the rotation direction of the platen roller 1 during recording is set clockwise as in this mechanism, and the thermal head 2 is reversed left and right and attached to the head arms 176 and 177, when the platen roller 1 is rotated to the thermal head 2 during recording. The direction of rotation is the same as in normal use, but there is a problem in that the upper part of the head arms 176, 177 themselves in the figure becomes large, and the thickness of the machine becomes considerably thick.

Therefore, as in this embodiment, by setting the rotation direction of the platen roller 1 in the direction from the heating element 190 of the thermal head 2 toward the driver board 2b, it is possible to reduce the thickness of the machine and also reliability can be increased.

By the way, in the above-mentioned embodiment, a case was described in which printing was performed on recording paper stored in the cassette 20, but the video printer according to this embodiment is an OHP printer.
Printing can also be carried out by manually feeding special recording paper such as a film for (overhera dove [1 diector)].

In such a case, manual adapters 20A and 20B as shown in FIG. 56 or 57, respectively, may be used.

These manual adapters will be explained below.

The basic configuration of these manual feed adapters is the same as the cassette 20 described above, so the same components as those of the cassette 20 described above are given the same reference numerals.

First, the manual feed adapter 20A shown in FIG. 56 has a recording paper insertion slot 260 on the rear surface of the case body as shown in the figure, and a paper feed passage 261 that is continuous with this insertion slot 260 is formed inside the case body. ing.

This paper feed passage 261 is formed by a plurality of passage forming members 262, 263, and 264 installed inside the case, and a roller support base 265 is located midway near the passage exit of the passage forming member 262 in the upper part of the figure. portion is supported by a shaft 265a.

A supply roller 266 for feeding recording paper in contact with the paper supply roller 230 in the apparatus is pivotally supported at the tip of the roller support base 265, and the base end is pressed in the direction shown in the figure by a spring 267. It is energized in the direction of 4 rotations and 1 direction).

As a result, when this manual feed adapter 20A is attached to the device and loading is completed, the above-mentioned supply roller 26
5 is resiliently pressed against a paper feed roller 230 within the apparatus.

In such a manual adapter 20A, when the adapter 2OA is attached to the device, the insertion port 260 is
Insert the recording paper from the above paper feed rollers 230 and 265.
By inserting the leading edge of the recording paper between the two, the recording paper is automatically drawn in.

Therefore, the recording paper inserted into the manual feed adapter 2OA is guided to the platen roller 1 through the same paper feeding path as the normal recording paper described above.

On the other hand, as shown in the figure, the manual feed adapter 20B shown in FIG. A pulley 272 on which a belt 271 is attached is attached to a bracket 273.

Further, a pull-in roller 274 is in rolling contact with the paper feed belt 271 while being supported by a bracket 275 , and the rotating shaft of the pull-in roller 274 is pressed against the paper feed belt 271 by a leaf spring 276 .

The paper feed belt 271 is wound around another pulley 277, and this pulley 277 is pivotally supported at the tip of a boot support base 278 whose midway portion is supported by a shaft 278a.

Further, the base end of this booby support base 278 is attached to a spring 279.
It is pulled and biased counterclockwise in the figure.
As a result, the paper feed belt 271 is brought into pressure contact with the paper feed roller 230 within the apparatus.

In such a manual feed adapter 20B, with the adapter 20B attached to the device, insert the recording paper from the insertion lower roller 0, and insert the leading edge of the recording paper between the paper feed belt 271 and the pull-in roller 214. automatically pulls in the recording paper, and furthermore, this paper feed belt 2
71 to the paper feed roller 230 inside the apparatus.

As a result, the recording paper inserted into the manual feed adapter 20B is guided to the platen roller 1 through the same paper feeding path as that for the normal recording paper described above.

(Effect of the invention) As is clear from the above description, according to the present invention, vi
Since the operating state of each mechanical component is controlled for each operating mode in order to control the overall operation of the apparatus, the accuracy of the operating state can be managed for each operating mode.

Therefore, according to the present invention, the operational accuracy of the entire device can be significantly improved.

Furthermore, since it is no longer necessary to detect the operating state of each R component for each operation, the number of components such as sensor switches and the like, which are conventional, can be reduced.

Therefore, according to the present invention, it is possible to significantly reduce the power consumption of this type of device, and at the same time, it is possible to reduce the load on the microcomputer that performs dynamic control.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of a video printer (thermal transfer recording device) according to the present invention, FIG. 2 is a perspective view similarly showing the frame configuration, and FIG. 3 is an upper side of a cassette installed in this video printer. 4 is a lower perspective view, FIG. 5 is a side sectional view, FIG. 6 is a side view of the video printer according to this embodiment, and FIG. 7 is a view of the vicinity of the transfer paper drive gear in this embodiment. 8 is a sectional view of the vicinity of the transfer paper drive gear on the winding side, FIG. 9 is a sectional view of the vicinity of the supply side spindle, and FIGS. 10(A) and 10(B) are sectional views of each side of the control cam gear. FIG. 11 is a side view showing the mechanism control mechanism arranged in the inner frame, FIG. 12 is a plan view of main parts showing the positional relationship between the spindle control arm and the biting part of the spindle control slider, and FIG. 14 is a plan view of the main parts showing the relationship between each spindle and the cam part of the spindle control slider, FIG. 14 is a plan view showing the spindle control arm, etc., FIG. The figure is a plan view showing the back side of another control cam gear, Figure 11 is a plan view of the main part showing the relationship between each sub-spindle and the cam part of the sub-spindle control slider, and Figure 18 is a head arm assembled to the inner frame. 19 is a front view showing the platen roller and loading arm, FIG. 20 is a side view showing the paper feed unit and clamp mechanism, etc., and FIG. 21 is a side view showing the thermal head support mechanism. A diagram schematically showing the configuration, FIG. 22 is a plan view of the thermal head, FIG. 23 is a side sectional view, FIG. 24 is a side view showing the adjustment shaft for adjusting the thermal head, and FIG. 25 is a bottom view. , FIG. 26 is a plan view showing the paper feed/discharge unit, FIG. 21 is a front view, FIG. 28 is a plan view showing the cassette lock mechanism, FIG. 29 is a plan sectional view, and FIG.
The figures are also a front sectional view, Fig. 31 is a cam line diagram of the operating mode and control cam gear, Fig. 32 is a side view showing the positional N relationship of the cassette and loading arm, etc. in the set mode, and Fig. 33 is a transfer paper roll and A plan view showing the fitting relationship between each spindle and the sub spindle, FIG. 34 is a plan view of the main part showing the positional relationship between the spindle and the cam part of the spindle control slider, and FIG. 35 is a plan view of the spindle control arm and the spindle control. FIG. 36 is a plan view of the main parts showing the positional relationship with the cam part of the slider, FIG. 36 is a plan view showing the fitting relationship between the transfer paper roll and each spindle and sub-spindle at the time of starting rope ink, and FIG. 37 is a plan view at the time of loading. FIG. 38 is a side view showing the positional relationship of the loading arm. FIG. 38 is a side view showing the positional relationship of the loading arm when loading is completed. FIG. 40 is a plan view of the main part showing the positional relationship between the spindle control arm and the cam part of the spindle control slider, and FIG. 41 is the fitting relationship between the transfer paper roll and each spindle and sub-spindle after loading is completed. 42 is a side view showing the positional relationship between the transfer paper and the platen roller when loading is completed, and FIG. 43 is a side view showing the positional relationship between the platen roller and the thermal head in ready mode and the open/closed state of the clamper. FIG. 44 is a side view showing the positional relationship between the spindle control slider and mode control slider, and FIG. 45 is a side view showing the positional relationship between the platen roller and the thermal head in standby mode and the open/closed state of the clamper. , FIG. 46 is a side view showing the positional relationship between the spindle control slider and mode control slider, FIG. 47 is a side view showing the recording paper being fed to the platen roller in standby mode, and FIG. 48 is in ready mode. FIG. 49 is a side view showing the positional relationship between the thermal head and the platen roller in print mode, and FIG. 50 is a schematic diagram of the support mechanism for the thermal head. FIG. 51 is a side view showing a state in which recording paper begins to be ejected in ready mode, FIG. 52 is a side view showing a state in which recording paper begins to be ejected in standby mode, and FIG. FIG. 54 is a side view showing the state in which enlarged size recording paper is ejected in mode, FIG. FIG. 56 is a side sectional view showing a manual feed adapter, and FIG. 57 is a side sectional view showing another manual feed adapter. be. 1... Blaun roller, 2... Thermal head, 3
．． 4... Inner frame, 5.6... Main frame, 7... Paper feed/discharge unit, 8... Drive mechanism, 9... One mechanism control mechanism, 10...
-Platen roller drive mechanism, 11...other mechanism control mechanism, 20...cassette, 2OA, 2
0B...Manual feed adapter, 21...Case body, 2
1C...Slanted surface, 25...Lock rib, 26...
・Lock hole, 27...Take-up side transfer paper roll, 28...
・Supply side transfer paper roll, 35... Holding piece, 36...
re-rubbing member, 40... drive motor, 43... center idler gear, 45... transfer paper drive gear, 46...
...Paper feed/discharge drive gear, 48...Transfer paper drive idler base, 48a...Rotation stopping protrusion (rotation t111 stopping member), 49...Transfer paper drive idler gear, 52...
Winding side transfer paper drive gear, 53... Supply side transfer paper drive gear, 61... Winding side spindle, 62... Supply side spindle, 66... Spring, 67... Fell 1~( ), 75.
...Mode motor, 76.77...Control 80
a...Transmission shaft, 88...Spindle controller 1-
Roll slider, 88e, 88f... cam part, 89.
...Mode control slider, 97...Rack cam gear, plate, 104...Center idler control plate, 111...Paper feed roller control plate, 115...Paper feed roller control lever, 128.129...・Bindle control arm, 128c, 129c...Roller, 140...Zub spindle control slider, 140d, 140e
...Cam, 145... Supply side sub spindle arm, 146... Winding side sub spindle arm, 155...
...Platen drive motor, 160.161...Loading arm, 165...Loading end shaft, 168...Clamp off arm, 170...
Clamp lever 1171...Clamp shaft, 17
2... Clamper, 175... Heat sink, 175a, 175b-... Adjustment hole, 176.177...
・Head arm, 176b, 177b...adjustment notch, 180...driven side main toggle link, 181...
・Driver side main toggle link, 182... Spring lever, 186... Drive side sub toggle link, 18... Driven side sub toggle link, 200... Adjustment jig, 210... Guide plate, 214... Paper feed/discharge drive gear, 215... Paper feed gear, 216... Paper discharge gear, 21
7... One-way clutch mechanism, 230... Paper feed roller, 232.233... Paper discharge roller, 235...
Paper discharge path, 23G... Paper outlet, 237... Paper feed roller control gear, 240... Paper feed roller bracket, 241.242... Cassette guide, 243...
...Hold lever, 243a...Tip projection, 243
c...Hold part, 245...Cassette lock lever 245a...First locking part, 245b...Second locking part, 245C...Hook, 246...In 1 ct slider (lock release member), 247... Beginning sensor, 250... Reflective plate, 260.270... Recording paper insertion slot, 261... Paper feed path, 266...-Paper feed roller, 271... ...Paper feed belt, 272.277...
・Pulley, 274...Retraction roller. Patent Applicant Kunio Kakimoto, Representative of Victor Japan Co., Ltd. 5H-H Property) Diagram 27 Ivy drawing procedural amendment (method) 1. Indication of the case 1999 Patent Application No. 83760 2. Name of the invention Thermal transfer recording device 3. Person making the amendment P+= and connection of

Claims (1)

[Claims] A cassette is installed that stores a pair of supply side and take-up side transfer paper rolls wound with transfer paper, and recording paper, and one of the above-mentioned take-up side transfer paper rolls is loaded from inside this cassette. ,
The transfer paper is pulled out and guided between the platen roller and the thermal head in the device, and the thermal head is pressed against the platen roller via the recording paper fed from the cassette onto the platen roller and the transfer paper. This is a thermal transfer recording device that performs printing using a cassette. The take-up side transfer paper roll is pulled out and moved to a predetermined position, and a spindle is fitted to each transfer paper roll to support each transfer paper roll at a predetermined position, and the paper feed roller is moved to the recording position in the cassette. A loading mode in which the paper is pressed, a clamper that clamps the recording paper on the platen roller is opened, a drive motor is connected to the paper feed/discharge drive system, and the recording paper is on standby in a state where the recording paper can be fed and discharged.
There is a standby mode in which the printed recording paper is ejected, and the clamper is closed to clamp the recording paper fed from the cassette to the platen roller, and the drive motor is connected to the transfer paper drive system. a ready mode in which the transfer paper is indexed; and the platen roller is rotated with the thermal head in pressure contact with the platen roller through the transfer paper and the recording paper, and the transfer paper is driven to print. A printing mode in which the transfer paper roll on the winding side is returned to the cassette by performing the opposite operation to the loading mode, and each spindle is separated from each transfer paper roll, and the paper feed roller is moved to the recording paper. It consists of an unloading mode in which the cassette is separated from the main body of the device, and an eject mode that is performed continuously with the unloading mode and in which the cassette is unlocked and can be removed from the main body of the device. A thermal transfer recording device characterized in that the operating state of each operating member is set according to these operating modes.