JPS62151368A - Lock release apparatus of separation and union type cassette at time of union - Google Patents

Abstract

PURPOSE:To release the lock at the time of union of a separation and union type recording cassette and to make it possible to use the lock of an ink sheet take-up part in common, by attracting a plunger in a solenoid against the repulsive force of an elastic member when a current is supplied to the solenoid and protruding the same from the solenoid by the repulsive force of the elastic member at the time of non-supply of a current. CONSTITUTION:When it is detected that a cassette has reached a first predetermined position, the supply of a current to a third solenoid 23 is stopped and the plunger 23a of said solenoid is flown up by the energizing force of a return spring 23b and the projection 22 of the slide plate 21 mounted to the plunger 23a passes through a cassette separating notch hole to contact with a cassette connection lever and further pushes up the lever to release a lock. The projection having reached a high position by this operation holds this state until a current is again supplied and the separated ink sheet take-up part is prevented from retracting from a holding unit and fixed at that position.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lock release device for releasing a locked state of a separate and combined type recording material cassette for a thermal transfer printer when the cassettes are combined.

[Conventional technology]

An ink sheet made of a very thin film made of resin or paper coated with a colored layer containing a heat-melting or heat-sublimating coloring material is placed in close contact with receiver paper and heated with a thermal helad to remove the coloring material on the ink sheet. A so-called Z) thermal transfer printer, which forms an image by transferring it onto a surface, is already known and widely used.

However, in conventional thermal transfer printers, two types of consumables, an ink sheet and an image receiving paper, are loaded into the printer equipment separately, and if either one is used up, printing becomes impossible. Managing and supplying these materials was complicated. In addition, especially in the case of a line-type thermal transfer printer that uses a line-type thermal printer, it is necessary to handle an extremely thin ink sheet with a width almost equal to the width of the image receiving paper, which requires even more complicated operations. There was a drawback that

The present inventors have previously improved these drawbacks and invented a separate and combined type recording material cassette for thermal transfer printers that is compact and easy to manage and supply.

One of the recording material cassettes has a cassette main body integrally comprising a first part containing image receiving paper and a second part containing an unused ink sheet, and a starting end of the ink sheet attached thereto. The ink sheet winding roller is composed of an ink sheet winding section disposed within the storage chamber, and the ink sheet winding section is formed into a first shape that is combined with the cassette main body. It can take at least two types of states: (combined state) and a second state (separated state, lc, etc.) in which it is separated from the cassette main body and a thermal head and a platen are interposed therebetween.

[Problems to be Solved by the Invention] Therefore, this recording material cassette must be provided with a locking mechanism to prevent the recording material cassette from being accidentally separated when in the combined state.

However, this poses a problem in that the lock state must be released from the thermal transfer printer side when necessary.

Furthermore, when the ink sheet winding roller is rotated to wind up the ink sheet in the second state, there is a problem in that the ink sheet winding section is pulled toward the main body.

Accordingly, an object of the present invention is to provide a lock release device when such a separate and combined type recording material cassette is combined, and an ink sheet winding unit locking device when in the second state.

[Means for solving problems]

Therefore, the present invention includes a solenoid, a plunger, an abutting member that moves in conjunction with the movement of the plunger, and an elastic member that returns the plunger, and when the solenoid is energized, the plunger responds to the repulsive force of the elastic member. The ink sheet is pulled into the solenoid against the ink, and when the Ij1 voltage is not applied, the plunger protrudes outside the solenoid due to the repulsive force of the elastic member, and the abutting member also serves as a locking device for the ink sheet winding section. The present invention provides an unlocking device with features.

Hereinafter, the main features will be explained in detail with reference to embodiments, and each component of the unlocking device of the present invention corresponds to the following in the embodiments below.

・Solenoid - third solenoid 23 ・Plunger plunger 23a ・Abutting member - one-sent separation slide plate 21 and lever push-up protrusion 22 - Elastic member - one plunger return spring 23b: Example] Below, a line printer type thermal henodra An example of the thermal transfer color printer used will be described.

■9 Main body part 1 a--1-------------
------1, pages 12-15 2, ink sheet 4----
-----1・--------------・-・15th to 16th pages 3, ink sort winding section 1 b---1st 16th to 1st
Page 7 4, Combination/separation mechanism of cassette 1 itself・・・−１−−−−−−−−−−−−−
・-・-・・・・Page 17-18 5. Cassette drive mechanism that guides and drives the cassette during automatic loading, unloading, and ejection after loading it into the printer. −
・-11--------Page 20-23 6, Side part of locking machine of cassette main body 1a...--1---------------
---------・No. 23, 24 ports, mechanism section ---
--------Page 24-25 8, Holding mechanism section of ink sort winding section 1b -----1---------No. 25~
28 page 9, ink sort winding mechanism section - 28th to 2nd
Page 9 10, Receiving paper feeding mechanism unit that sends out the image receiving paper 2 to the platen mechanism unit - 1 - 2nd
Pages 9 to 36 10, 1 Rotating mechanism of image receiving paper feed roller 70 -------1 No. 29 to 32
Page 10, 2 Vertical mechanism of receiver paper feed roller 70 -
----1-----------------1 32nd ~
Page 36 11, Platen mechanism section --------------
-・-・- Pages 36-41 11, 1 Platen 7
6 --- --- ----- Pages 36-40 11,
2 Rotation mechanism section of platen 76 - pages 40-41 12
, Thermal head 36 elevating and lowering mechanism section --------- Pages 41 to 45 13, Guide and discharge mechanism section for the image-receiving paper 2 to the platen 76 -------1. Pages 45-49 14, Limit switch group for cassette position detection ~~~-------------1 No. 5
0 to 52 pages 15, Automatic loading operation of cassette 1 ----- 1 ----- No. 53 to 55 p164 Separation operation of cassette 1 --- No. 55 to 58 Negative 17. Movement of thermal head 36 from the low position to the middle position Operation------
---1--18, Feeding operation of receiver paper 2--1, 60th to 631119,
Chucking of image receiving paper 2 to platen 76 -1
-1--63rd to 64th-20 Winding and stopping operation of the ink sheet 4--111--1-65 Page 21, From the middle position to the high position of the thermal gutter 36 Moving operation -----11 66th to 67th p22, Y color printing operation -1------68th to 71st Page 23, Preparation for M color printing-----1 No. 71-73 Page 24,
M color printing operation -------1----- No. 73
Page 25, 0 color print <1! Preparation--------- Chapter 73
Shell 26, C color printing operation ・-11 Page 74 27, Ejecting operation of the printed image receiving paper 2 - --=- - Pages 74 to 78 28, Printing the last image receiving paper 2 in the cassette How to end the printing operation in the case of
Page 0 29, Combining operation of cassette 1 -------1--- Page 80-81 30, Ejecting operation of cassette 1 -
・−m=・−・−1−−−−11 Pages 81 to 82/″ The cassette 1 of this embodiment has the following 11 main body portions 1a 2, ink sheets 4 3, and ink sheet winding portions 1b. Consisting of

FIG. 1 is a perspective view of the top of the recording material cassette 1 of this embodiment, and FIG. 2 is a perspective view of the bottom.

The cassette 1 consists of a cassette main body part 1a and an ink sheet winding part 1b that houses an ink sheet winding roller 14, and the winding part 1b is detachably connected to the main body part 1a as described later. .

In FIGS. 1 and 2, the cassette 1 is the "first cassette" in the present invention.
It is in a "combined state" corresponding to the state gj.

The operation of changing from the combined state to the "second state j" referred to in the present invention is called "separation", and the separated states, including the "second state", are called "separated states". In other words,
The cassettes 1 can be separated and combined.

FIG. 3 is a partially exploded perspective view of the cassette irises in a separated state.

1. Main body part 1a The main body part 1a is protected by a thin rectangular parallelepiped-shaped housing 6, and as shown in FIGS. It is divided by a partition wall into an ink sheet supply chamber 3 which accommodates an image-receiving paper supply chamber 3 and an ink sheet supply chamber 5 which accommodates an unused ink sheet 4 wound into a roll.

The receiving paper supply chamber 3 corresponds to the "first part" in the present invention, and the ink sheet supply chamber 5 corresponds to the "second part".

As shown in FIG. 7, in the image-receiving paper supply chamber 3 there is an image-receiving paper holder 8 which is urged upward by a compression spring 7, and constantly presses the image-receiving paper 2 against the upper part of the housing 6.

As shown in FIG. 1, a receiving paper feeding roller hole 9a and a receiving paper discharge port 9b are opened in the upper part of the housing 6, and a receiving paper feeding roller 70 shown in FIG. 18 is opened in the feeding roller hole 9a. comes down and touches the receiving paper 2,
As this roller rotates, the image-receiving paper 2 is sent out one by one from the image-receiving paper outlet 9b. ' Further, in the upper part of the housing 6, a window 10 is provided for entering detection light and detecting reflected light from the image receiving paper 2 in order to detect whether or not the image receiving paper 2 is present. The image receiving paper 2 is generally white and has a high reflectance, so if the mounting plate 8 is made to have a low reflectance or a low reflectance mark is provided at the position where the detection light hits, it will be easy to detect when the image receiving paper 2 is used up. Since the amount of reflected light decreases, if this change in the amount of light is detected by the second photodetector (OP-2) shown in FIG. 13, the presence or absence of the image receiving paper 2 can be detected. Initially, the amount of cut paper-like image receiving paper 2 and the amount of roll paper-like ink sheet 4 was 1:1.
Therefore, in order to know when to replace the cassette 1, it is possible to detect the absence of the image receiving paper 2 or the absence of the ink sheets 1-4. 2 is in the form of cut paper, so there is a risk of double feeding (a phenomenon in which two or more sheets are sent out at the same time), and in that case, even if ink sheet 4 still remains, receiver paper 2 will be used up and cassette L will have to be replaced. Therefore, it is preferable to provide the detection device on the image receiving paper 2 side.

On the other hand, at the bottom of the housing 6, as shown in FIG.
A main body opening 11a is provided on the left side of the center, an ink sheet supply roller locking hole 11b is provided on the right side near the back surface, and a notch hole 11e for cassette separation is provided on both left and right sides of the rear end.

As shown in FIG. 3, guide grooves 12 for engaging the housing 15 of the ink sheet winding section 1b are provided on both left and right side surfaces of the housing 6, and the projecting piece 15a of the housing 15 is inserted into the guide groove 12. Engage from the horizontal direction.

As shown in FIG. 5, an ink sheet supply chamber 5 is provided on the back side of the housing 6, and an ink sheet supply roller 13 is rotatably mounted in the supply chamber 5. The ink cartridge 4 is wound into a roll of paper.

A rubber ring +32 is disposed at one end of the ink sort supply roller.

As shown in FIG. 3, the rear surface of the housing 6 is completely open, and as shown in FIG. 4, the other end of the ink sheet 4 is wound around the ink sheet winding roller 14 of the ink sheet winding section 1b. It is.

Therefore, the ink sheet 4 can be wound up by rotating the roller 14.

2. Ink sheet 4 FIG. 4 is a perspective view of the ink sheet 4. The ink sheet is in the form of a roll, one end of which is wound around an ink sheet supply roller 13, and the other end of which is wound around an ink sheet take-up roller 14.
It is wound up.

The ink sheet 4 is a support sheet with a thickness of 4 to 20 μm, for example.
It consists of a polyethylene terephthalate sheet and a colored layer (ink layer) coated on top of it.

The colored layer is divided into regions each having a shape and size corresponding to the image receiving paper 2, and each region has a different color tone of yellow (Y), magenta (M), and cyan (C) in order. These Y, M, and C areas are repeated in order. As is already known, the composition of the ink layer is, for example, a heat sublimable coloring material (sublimable dye) of a color corresponding to each tone.
and a vehicle (resin component).

3. Ink sheet winding section 1b As shown in FIG.
Projecting pieces 15a extend toward the front on both the left and right sides of 5. This protruding piece 15a engages with the guide groove 12 of the image receiving paper section housing 6.

As shown in FIG. 5, a roller 14 is rotatably attached to the storage chamber of the ink sheet take-up roller 14, and a gear 14a having a larger outer diameter than the roller 14 is fixed to the right end of the roller 14. ing.

As shown in FIG. 1, an ink sheet take-up gear hole 16 is opened in the upper surface of the housing 15, and the gear 14a can be seen from there. Gear 14 as shown in FIG.
An external drive gear 113 meshes with a to rotate the roller 14.

4. Combination/separation mechanism of the cassette 1 itself As mentioned above, the cassette 1 is connected to the main body 1a (inc.)
It can be separated and combined with the S scraped portion 1b. This mechanism will be explained.

FIG. 6 is a cross-sectional view obtained by cutting the cassette 1 of FIG. 5 along a plane passing through Xl-x+ and perpendicular to the plane of the paper;
Cassette coupling levers 17b each having one end pivotally supported by a lever shaft +72 are provided near the inner bottom surface of both left and right sides of the housing 15 of the ink sheet winding section 1b. This lever 17b is biased downward by one end of a lever return spring 17G shaped like a letter ``■'', and the spring 17C is biased downward.
is attached to the side wall of the housing 15 at the apex of the spring-wound shaft 17d.

On the other hand, the cassette coupling lever 17b has a notch 178, and the lever hooks provided here near the bottom surface of both sides of the housing 6 of the main body portion 1a are engaged with the pins 18 to be in a locked state, and the cassette 1 cannot be separated.

However, if the cassette coupling lever 17b rotates upward about the lever shaft 17a and the lever hook is disengaged from the bin 18, the lock is released and the cassette can be separated.

Next, the configuration of a thermal transfer color printer using the recording material cassette 1 will be explained.

FIG. 8 shows the external appearance of the printer with a cassette L installed. On the front side, there is a cassette loading slot 24 in the middle on the left side, and a printed receiver paper (hereinafter also referred to as "print") on top of the cassette loading slot 24.
The discharge ports 25 are open, and a print switch 116 and a ms switch 115 are provided on the right side, and a display section 117 is mounted above them.

The cassette l is inserted through the mounting port 24 as shown in FIG. 8, and the completed printer is discharged from the discharge port 25.

FIG. 9 shows an outline of the mechanical arrangement inside the printer. As shown in the figure, it can be roughly divided into an upper part and a lower part, and the upper part and the lower part can be opened and closed about a pin 118 provided at the upper part. Note that the bearing of the bottle provided at the bottom is not shown. Furthermore, when divided by function, it has the following nine block configurations.

5. A cassette drive mechanism that guides and drives the cassette during automatic loading, unloading, and ejection after loading the cassette into the printer.

6. The locking mechanism section 7 of the cassette main body 1a, the locking mechanism section 8 of the ink sheet supply roller 13, the holding mechanism section 9 of the ink sheet winding section 1b, the ink sheet winding mechanism section 10, and the platen mechanism of the image receiving paper 2. The image receiving paper feeding mechanism section 11, the platen mechanism section 12, the elevating mechanism section 13 of the thermal head 36, and the image receiving paper 2
In the lower part of Fig. 9, there are 5, 6, 7 and 10 in the lower right part, 12 in the center part, 8 and 9 in the upper left part, and 8 and 9 in the upper left part. There is 13 from the center to the center, and 11 on the upper left.

Each mechanical section will be explained in detail below.

5. Cassette Drive Mechanism FIG. 10 is a perspective view schematically showing the cassette drive mechanism and the ink sheet winding section holding mechanism.

The cassette drive mechanism section has left and right cassette guides 31.3.
2, a driving power source and a driving mechanism located between them. A first limit switch LSwl is arranged at the tip (inner side) of the left cassette guide 32, and a second limit switch LSw2 is arranged near the middle, and their positions are detected as the cassette 1 is mounted, carried in, and carried out.

FIG. 11 is a conceptual diagram showing the driving force transmission mechanism of the entire printer. To explain with reference to Figures 10 and 11,
A gear 71 fixed to the output shaft of the second motor 2S meshes with a rotating shaft 73 to which the gear 72 is fixed.
has a first end coupled to the input shaft of the magnetic clutch 35,
A gear 26 is attached to the output shaft of the first electromagnetic clutch 35.

A shaft 88a and a shaft 88b are fixed to a plate 88 shown in FIG. 10 as shown in FIG. 12.

A gear 27 that meshes with the gear 26 is rotatably attached to the shaft 88a, as shown in FIG. 12, and a gear 2B that meshes with the gear 27 is rotatably attached to the shaft 88b. . That is, axis 888.
Gears 27, 28 rotate freely relative to 88b.

As shown in FIG. 12, a cassette moving rubber roller 30 is integrally connected to the gear 28 using a shaft 88b as a common shaft, and the roller 30 rotates together with the gear 28.

Therefore, when the second motor 29 rotates as shown in FIG.
6 → gear 27 - gear 28 - rubber roller 30.

On the other hand, as shown in FIG. 12, a shaft 88 is fixed to a plate 88.
A relatively rotatable shaft 8S is fitted into the inner diameter portion of a, and one end of the shaft 89 is fixed to the right cassette guide 31. Therefore, the plate 88 is vertically rotatable about the shaft 88.

As shown in FIG. 12, the plate 88 is urged upward by a torsion spring 81 with the shaft 89 as the center of rotation.
It is possible to rotate until it comes into contact with the plate rotation limiting bin 90 shown in FIG. As a result, the rubber roller 30 can revolve around the shaft 89 and is always urged upward.

Therefore, as shown in FIG. 1O, the cassette guide 31.3
When the cassette 1 is inserted into the cassette L (D) and the tip of the cassette L (D) contacts the rubber roller 30, and the cassette 1 is still advanced to the back by the operator, the rubber roller 30 is rotated downward by the cassette 1 around the shaft 89. The rubber roller 30 is pushed down and comes into contact with the bottom of the cassette 1. Furthermore, the rubber roller 30 is strongly brought into contact with the bottom of the cassette 1 by the torsion spring 91.

Therefore, the rotation of the second motor 29 is transmitted to the rubber roller 30, and the cassette 1 is loaded and unloaded.

6. Locking Mechanism of Main Body La When the ink sheet winding section 1b rotates the roller 14 and winds up the ink sheet 4, the main body la must be fixed. This is the main body locking mechanism.

As shown in FIG. 10, a first solenoid 33 with a return spring is located inside the left cassette/
When this solenoid 33 is energized and turned on, the plunger 34 is pulled into the solenoid against the biasing force of the return spring. When turned off, the plunger 34 protrudes from inside the solenoid due to the biasing force of the return spring.

Since the head of the plunger 34 is hemispherical, even if the cassette 1 or the main body 1a approaches and comes into contact with the plunger 34, the plunger 34 will sneak under the bottom of the cassette 1 or the main body 1a. Cassette 1 or main body 1
There is no problem with the movement of a. When the position of the hole 11a of the housing 6 coincides with the position of the head of the plunger 34, the plunger 34 fits into the protruding hole 11a by the biasing force of the return spring. As a result, cassette 1 or main body 1
Stop the movement of a and lock it at the same time.

Since the time for retracting the plunger 34 into the solenoid is short throughout, the solenoid 33 with a return spring
This reduces power consumption by reducing the amount of time the device is turned on.

7. Locking mechanism of the ink sheet supply roller 13 As will be explained later, it is necessary to lock the ink sheet supply roller 13 in order to take up slack in the ink sheet during printing.

As shown in FIG. 10, a second solenoid 86 with a return spring is installed inside the back of the right cassette guide 31, so that in the OFF state, the plunger 87 is pulled downward by the biasing force of the return spring. In the ON state, the plunger 87 protrudes upward against the biasing force of the return spring. Then, the upper part of the protruding plunger 87 enters the hole flb provided at the bottom of the main body 1a of the cassette 1, and strongly presses the rubber ring 13a provided at the end of the ink sheet supply roller.
rotation is locked.

8. Holding mechanism section IS first of ink sheet winding section 1b
As shown in FIG. and an ink sheet winding section 1b, and are separated into two parts: a holding mechanism section that locks the winding section 1b, and (2) an ink sheet winding mechanism section. Here, (1) the holding mechanism section will be explained, and the remaining (2) will be explained in the next section.

As shown in FIG. 10, the holding mechanism of the cassette I mainly consists of left and right cassette guides 20a, 2Qb and a connecting plate 20C that connects the two. 2Qa is arranged to be located on the extension of the left cassette guide 32, and 20b
is arranged so as to be located on an extension of the right cassette guide 31.

A cassette separation slide plate 21 is attached to each of the left and right double force setting guides 202.20b so as to be slidable up and down.

This slide plate 21 is also attached to the tip of the plunger 23a of the third solenoid 23.
is configured to be in a high position in the OFF state and in a low position in the ON state.

The slide plate 21 has a protrusion 22 protruding in a 90-degree direction at its lower part, and the slide plate 21 is in the OFF state of the third solenoid 23 when the tip end surface of the ink sheet winding section 1b is in contact with the connecting plate 20c. When it is in the high position 1, this protrusion 22 comes into contact with the cassette coupling lever 17b and pushes it up.
Release the lock status.

When the slide plate 21 is in the low position with the third solenoid 23 in the ON state, the protrusion 22 does not come into contact with the cassette coupling lever 17b. Then, the lever 17b is pushed back downward by the biasing force of the lever return spring 17e and is fitted into the pin 18, so that the ink sheet winding section 1b is locked.

Since the protrusion 22 needs to be in the low position only when the ink sheet winding section 1b enters and exits the holding mechanism section 19, the time it is in the low position is shorter.

Therefore, it is preferable to use a solenoid with a return spring as the third solenoid 23. If this is done, the time for energizing the solenoid 23 will be shortened, and the power consumption of the printer will be reduced.

Furthermore, as shown in FIG. 13, the protrusion 22 is located closer to the lever shaft 17a than the notch of the cassette coupling lever 17b.
This is because when you want to separate the cassette coupling lever 17b, you want to push up the cassette coupling lever 17b as close to the lever shaft 17a as possible. The moving distance of the parts can be increased.

9. Ink sheet winding mechanism As shown in FIG. 10, a third motor 111 for winding up the ink sheet is installed above the right side force center guide 20b. Power is transmitted from the output shaft to the gear 113 via a friction clutch composed of a spring 114 and the like. In other words, only torque smaller than the predetermined friction torque can be transmitted to the gear 113.
When an excessive load is applied to the shaft 112, the shaft 112 idles and the gear 113 does not rotate.

On the other hand, as shown in FIGS. 13 and 14, this gear 113 is configured such that the ink sheet winding section 1b is
When the third motor 1
The rotational force 11 is transmitted from the shaft 112 to the gear 113 to the gear 14a, and rotates the ink sheet take-up roller 14.

10. Image-receiving paper sending mechanism section that sends out the image-receiving paper 2 to the platen mechanism section** 10.1 Rotation mechanism of image-receiving paper sending roller 70 As shown in FIG.
1 is attached. On the other hand, the gear 72 is connected to the rotating shaft 73
The gear 71 is fixed in the middle and meshes with the gear 71. The left end of the shaft 3 is fitted and fixed to the input shaft of a clutch 74, and a gear 75 is attached to the output shaft of the clutch 74.

The gear 75 meshes with a circumferential gear Sla, and this gear 51a is integrally coupled with an intermittent gear 51b.

As shown in FIG. 15, this integrally connected gear 51a
, Slb is integrally sandwiched between "the limit switch detection cam 52, the roller up and down cam 54 of the image receiving paper feed roller" and the "limit switch detection cam 53" and rotates around the shaft 55. Rotate.

As shown in FIG. 15, the intermittent gear 51b is meshed with a gear 60, and the gear 60 is further meshed with a gear 61.

As shown in FIGS. 15, 16 and 17, the gear 6
0 is rotatably attached to the outer periphery of the bearing 57,
The bearing 57 is fixed to the left side surface of the roller holding lever 56, which has a "gate" shape when viewed from above. On the other hand, a shaft 66 passes through the inside of this bearing 57, and the bearing 57 and shaft 6
6 and can rotate freely with respect to each other. And the right end of the axis 66 is
It is fixed to the board G3a. This board 63a is fixed to the left cassette guide 32.

On the other hand, a bearing 57 is also placed on the right side of the lever 56 in the same way as on the left side.
A bearing 65 corresponding to the
A shaft 67 corresponding to 6 is freely rotatably passed through the shaft 67.
The left end of is fixed to the substrate Ei3b via a spacer. This group +7i:63b is fixed to the right side guide 31.

Therefore, the lever 56 is rotatable about the shafts 66, 67, and the gear 60 is also rotatable about the shaft 66.

As shown in Fig. 7817, bearings 58 and 64 are fixed to the left and right side surfaces of the roller holding lever 56 having a "-" shape near the bent corners, and the roller shaft 62 passes between the bearings. , the roller shaft 62 is free to rotate relative to the bearing. The left end of the roller shaft 62 passes through the inside of the bearing 5B and comes out to the outside, and the gear 61 is fixed thereto. A roller 70 is fixedly attached near the center of the roller shaft 62.

Therefore, as shown in FIG. 11, the rotational force of the second motor 29 is: output shaft - gear 71 - gear 72 - rotating wheel 73 - clutch 74 - gear 75 - gear 51a - gear 51b - gear 6.
0-Gear 61-Roller shaft 62-Receiving paper feeding roller 7
0, the roller 70 rotates and sends out the receiving paper.

Umbrella * 10.2 Vertical mechanism of the receiving paper sending roller 70 In order for this roller 70 to rotate and send out the receiving paper from the cassette l, it is necessary to lower the roller 70 until it comes into contact with the surface of the receiving paper. In some cases, it is necessary to raise the roller 70 because it becomes a hindrance to the conveyance of the cassette 1. For this purpose, a vertical mechanism is required.

As shown in FIG. 18, in this embodiment, the roller 70 is
The lever 56 is attached to the roller holding lever 56 which has a shape of "-", and the lever 56 is rotatable around the shaft 66 as described above.
In Figure 6, rotating it clockwise will cause it to rise, and rotating it counterclockwise will cause it to fall. As a result, the receiving paper feed roller 70 also moves up and down.

As described above, the gear Sla, 51b rotates around the shaft 55 together with the limit switch detection cam 52, the roller up/down cam 54 of the receiving paper feed roller, and the limit switch detection cam 53.

As shown in FIG. 16, the limit switch detection cam 5
3 is the ON of the 8th limit switch LSw8.

There is a notch for switching OFF, gear 51a
, 51b rotate once.

The limit switch detection cam 52 and the ninth limit switch LSw9 detect a predetermined angular position during one rotation of the gears 51a and Slb.

Since the biasing force of the tensioner 269 acts to rotate the lever 56 counterclockwise in FIG. 16 and clockwise in FIG. Cam follower 68 broke
is always in contact with.

As a result, in response to the cam surface, the roller holding lever 56 rotates counterclockwise in FIG. The roller 70 descends and enters the receiving paper feed roller hole 9a of the main body portion 1a, contacts the receiving paper 2, and the roller 70 presses the receiving paper 2 by the biasing force of the bar 269. When the roller 70 rotates in this state, the image receiving paper 2 is ejected.

Conversely, in response to the cam surface, the roller holding lever 56 moves toward the shaft 66.
When the roller 70 is rotated clockwise in FIG.
Raise to a high position where it is safe to move.

FIG. 16A shows that the protrusion of the cam 54 is in contact with the cam follower 68, the lever 56 is fully rotated clockwise, and the roller 7
0 is at the highest position. FIG. 1 shows the relationship between the roller 70 and the image receiving paper 2. FIG. The two are far apart here. On the other hand, FIG. (2) is a diagram showing the relationship between the intermittent gear 51b and the gear 60 in that state, and the two do not mesh, so the rotation of the gear 51b is caused by the rotation of the gear 60.
Since the gear 61 meshing with the gear 60 does not rotate, the roller 70 connected to the gear 61 does not rotate.

FIG. 16B shows the situation when the cam 54 has rotated a little further from the state shown in FIG. 16A and the cam follower 68 has just passed the protrusion, when the lever 56 has fully rotated counterclockwise and the roller 70 is at the lowest position. A diagram conceptually showing the state, Figure fi
+ indicates the relationship between the roller 70 and the image receiving paper 2. Here the two are in contact. Rather, the roller 70 is pressed against the image receiving paper 2 by the biasing force of the spring 69. On the other hand, FIG. 2 is a diagram showing the relationship between the intermittent gear 51b and the gear 60 in this state, and the gear portion of the intermittent gear 51b has just started to mesh with the gear 60. Therefore, the rotation of gear 5111 is transmitted to gear 60 and meshes with gear 60.

The gear 61 rotates and the low gear 7 connected to the gear 61 rotates.
0 rotates and the image receiving paper 2 begins to be ejected.

FIG. 16C is a diagram conceptually showing a state in which the rotation of the cam 54 has progressed from the state shown in FIG. 16B and the projection of the cam 54 has approached the cam follower 68. Here, the two are still in contact.However, Figure (2) is a diagram showing the relationship between the intermittent gear 51b and the gear 60 in that state, and the intermittent part of the intermittent gear stb is in contact with the gear 60. Therefore, gear 5
The rotation of 1b is not transmitted to the gear 60, the gear 61 meshing with the gear 60 stops rotating, the roller 70 connected to the gear 61 also stops rotating, and the ejection of the image receiving paper 2 is stopped.

11. Platen Mechanism Section 11.1 Platen As shown in FIG. 9, the platen 76 is located above the thermal head 36, and basically, as shown in FIG.
A metal cylindrical part 76a, a metal side part 76b on both left and right sides of the metal cylindrical part 76a, and a rubber part 7 covered on the outside of the cylindrical part 76a.
It consists of 6C. As shown in FIG. 20, the side surface portion 7Gb
has a protruding shaft portion 76d at its center, and the platen 76 is pivotally supported by the shaft portion 76d.

As shown in FIG. 20, a gear 77 is attached to the right end of the shaft portion 7ed, and this gear 77 is connected to the output shaft of a gear box 78a attached to a first stepping motor 78 as shown in FIG. Gear 7 attached to the tip of
The rotation of this motor 78 causes the platen 76 to rotate in the direction of the arrow shown in FIG.

On the other hand, as shown in FIG. 20, a camshaft 80 passes through the center of the shaft portion 76d, and both can freely rotate relative to each other. However, as shown in FIG.
has a one-position clutch (one pos clutch) on the left end.
tion clutch C4) 81, and this clutch 81 can be turned on and off using an electric signal. When this clutch 81 is turned on, the camshaft 8
0 and the shaft portion 76d (that is, the platen 76) rotate together, and when turned off, the camshaft 80 is fixed at a predetermined position regardless of the rotation of the shaft portion 76d (that is, the platen 76) and stops rotating. do.

As shown in FIG. 20, a shaft 8 is provided inside the cylindrical portion 76a.
Six cams 82 are attached around the cylindrical portion 76a, and a shaft 83 is attached near the cylindrical portion 76a between the left and right side portions 76b.
A total of six claws 84 for image receiving paper and chucking are attached at positions corresponding to the above. The claw 84 is rotatable about the shaft 83, and as shown in FIG.
It is always biased in the direction of the arrow by a torsion bar 285 attached to the shaft 83.

As shown in FIG. 23, when the claw 84 is viewed from the side,
A left arm 84a, which has the shape of a "m" character, serves to hold down the image receiving paper 2, and a right arm 84b, which serves to lift up the image receiving paper from the platen 76 when printing is completed and the paper is ejected from the platen 76. It has a cam follower portion 84C that protrudes downward from the lower end of the right arm 84b.

In this way, the claw 84 is in the shape of a square, so it is a single member and can be rotated (closed) clockwise in FIG. 24 by the biasing force of the spring 85 to receive the image. It is possible to hold (chuck) the leading edge of paper 2,
In addition, by rotating (opening) the claw 84 counterclockwise in FIG. 25 against the cam 85 using the cam 82, the leading edge of the image receiving paper 2 can be flipped up from the platen 7. Extremely useful.

In order to open the pawl 84 by bringing the cam 82 into contact with the cam follower portion 84C of the pawl 84, the fourth clutch 81 is turned off to release the camshaft 80 from the platen 76, and the camshaft 80 is held at a predetermined angle. Fix the platen 76 and keep it that way.
Rotate. Then, as shown in FIG. 22, the cam follower portion 84C of the pawl 84 comes into contact with the projection of the cam 82, causing the pawl 84 to rotate counterclockwise and open. This position is the platen origin position as shown in FIG. 22, and when the platen 76 rotates to this position, a platen origin position detection cam 76e attached to the left end of the shaft portion 76d
(see FIG. 26) turns on the fourth limit switch LSw4 (see FIG. 26) for detecting the origin position, and based on this ON signal, the stepping motor 7 is de-energized and the platen 76 is stopped.

To close the pawl 84, the clutch 81 is turned OFF to disengage the camshaft 80 and the platen 76, and the camshaft 80 is fixed at a predetermined angle.
Rotate in the direction of the arrow in Fig. 22. Then, the second
As shown in FIG. 4, the cam follower portion 84C of the claw 84
is released from the protrusion of the cam 82, and as a result,
Due to the urging force of the spring 85, the pawl 84 rotates clockwise in FIG.
chucking between. FIG. 24 shows this state.

Wheel 111.2 Rotation Mechanism of the Platen 76 On the other hand, to explain the rotation mechanism of the platen 76, as shown in FIG. 21, the gear 79 attached to the output shaft of the gear box 78a of the first stepping motor 78 is gear 77
The gear 77 is fixed to the tip of the rotating shaft 76d.

As shown in FIG. 20, the rotating shaft 76d is connected to the platen 7.
6 is supported. Therefore, the rotational force of the motor 78 is
The platen 76 rotates through transmission with the gear 79, the gear 77, the rotating wheel 76d, and the platen 76.

12. Elevating mechanism of the thermal head 36 FIG. 27 is a perspective view of the elevating mechanism of the thermal head 36;
The figure is an exploded perspective view seen from the rear direction.

The thermal head 36 is mounted fixedly on the stand 37,
For installation, the stand 37 can be mounted around the shaft 38. The shaft 38 is attached to a carriage 39, and the carriage 39 is fixed to a frame 40. Furthermore, the left and right frames 40 are each attached to a frame stand 41. The spring 42 is located between this frame base 41 and the mounting base 37, and is mounted on the mounting base 37.
7 is pushed up in both directions, creating contact pressure between the thermal head 36 and the platen (not shown).

The stopper 43 is installed on the side of the stand 37 to prevent the stand 37 from rising unnecessarily when the thermal head 36 is not in pressure contact with the platen, and is mounted on the bottom of the frame 40. When it is attached, the base 37 cannot be raised any further.

Ink sheet guide rollers 44a, 44b.

The ends of 44C are pivotally supported by the left and right frames 40. Generally, the ink sheet guide roller is attached to the platen side in a V-type manner, but here it is attached to the frame 40. The reason for this is that in order to prevent the occurrence of wrinkles when the ink sheet is moved, the line of contact between the thermal head 36 and the platen must be aligned with the ink sheet guide roller 44a.
The line of contact must be exactly parallel to the axis of ~44C, but the line of contact must be exactly parallel to the axis of
Since it changes depending on how it hits the thermal, attach the gutter 36 to the thermal on the frame 40 that fixes the carriage 3S that pivots on the shaft 38 of the stand 37, and then install the guide rollers 443 to 44C for the ink sheet in the same way. Being pivoted is +1
This is because IR writing can be made more sophisticated.

Guide rollers 39b and 39C are attached to the carriage 39, and the carriage 39 can move up and down along the guide plate 45. To explain the means for moving the carriage 39 up and down, a cam 46 is in contact with a cam follower 39a attached to the carriage 39, and when this cam 46 rotates, a cam follower 393 moves up and down, and as a result, the carriage 39 moves up and down. do.

FIG. 27A is a diagram conceptually showing the relationship between the cam 46, the cam follower 392, and the thermal head 36, and FIG.
In this case, the large diameter portion of the cam is in contact with the cam follower 39a, and the thermal head 36 is at a high position. Printing is performed at this time.

In FIG. 2(2), the inner diameter portion of the cam is in contact with the cam follower 39a, and the thermal head 36 is in the middle position. At this time, printing preparations have been completed.

In FIG. 3(3), the small diameter portion of the cam is in contact with the cam follower 39a, and the thermal head 36 is at a low position. At this time, the cassette 1 is transported.

As shown in the 27th [K, the cam 46 and the gear 48 are rotatably attached to the same shaft 49d, and both rotate together. Then, as shown in Fig. 27, gear 4
8 and gear 47 are meshed with each other.

As shown in FIG. 11, the gear 47 is attached to the left end of the rotating shaft 47a, and the gear 47b is attached to the right end. The gear 47b meshes with a gear 51, which is attached to the output shaft of the electromagnetic clutch 50. On the other hand, a gear 50a is attached to the tip of the input shaft, and this gear 50a meshes with a gear 71.

The gear 71 is attached to the output shaft of the second motor 29 as described above.

Therefore, referring to FIG. 11, the transmission path of the rotational force of the second motor 29 will be explained. Gear 71 attached to the output shaft of the motor 29 - gear 5Qa - second clutch 50 - gear 51 - gear 47b - 4@Rotating shaft 47a-gear 47-gear 48-cam 46 and the cam 46 rotates.

As shown in FIG. 27, Section 5.6. Friminotos inch LSw5, LSw6 +' LSw7 ON, OF
The cams 49a, 49b, and 49C that move F are also coaxially connected to the cam 46 with a gear 48 in between.
limit when reaches a predetermined rotation angle; (inch LS
w5. LSw6. LSw7 is also turned on and off. Limit switch LSw5゜LSw6.
The reason why three LSw7 are provided is to detect the high position, middle position, and low position of the thermal head 36 in that order.

13. Guidance and ejection mechanism of image-receiving paper 2 to platen 76 Fig. 26 shows a mechanism for guiding image-receiving paper 2 to platen 76 and an ejection mechanism for ejecting thermal transfer recorded image-receiving paper 2, that is, prints. FIG. 29 is an explanatory view conceptually showing the right side of the printer.

As shown in FIG. 29, guide plates 92 and 93 are provided in front of the platen 76, and the receiving paper feeding roller 7
The image-receiving paper 2 discharged upward from the discharge port 9b of the cassette main body 1a loaded in the lower part of the printer by
Continue on the guide plate 92 with the roller 70,
Eventually, it comes into contact with the guide plate S3 and changes its course toward the lower part of the platen 76.

Around the platen 76, a pressure roller 94 is disposed on the side closer to the thermal head, and another pressure roller 97 is disposed above the platen 76 in order to press the wound receiving paper 2 against the platen 76. .

The pressure roller 94 is attached to one end of a rectangular lever 85, and the other end of the lever 95 is attached to a tension spring 96.
It is biased clockwise in FIG. 29. This biasing force is transmitted to the pressing roller 94 as the lever 95 rotates around the rotating shaft 95a located at the bending point, and presses the roller 94 against the platen 76.

Another pressure roller 97 is located above the platen 76 and is fixed.

On the other hand, a pair of substantially parallel guide plates 98 and S9 are provided to discharge the printed image receiving paper. One end of this 5411/98.99 is open above the platen 76, and the image receiving paper 2 advances between the two. Guide plate 98
．． The other end of 99 passes through the receiving paper outlet 25 (see FIG. 8). However, since the image-receiving paper 2 cannot advance between these guide plates 98 and 99 to the follow-up exit 25 with its own blade, as shown in FIG. (for pressure welding) is provided.

As shown in FIG. 26, a pulley 104 is attached to the left side of the rotary shaft 106 that supports the paper ejection roller 100. On the other hand, as shown in FIGS. A pulley 103 is attached to the left end of the supporting shaft portion 76d outside the platen origin position detection cam 76e, and a belt 105 is placed between the pulley 103 and the pulley 104.

The diameter ratio of pulleys 103 and 104 is approximately 6:1, and platen 7
6 and the paper discharge roller 100 is set to about 4°1. Therefore, the peripheral speed ratio between the platen 76 and the paper discharge roller 100 is approximately 1:1.5. This is to prevent the image receiving paper 2 from becoming loose or wrinkled when the leading edge of the image receiving paper 2 reaches the paper ejection roller 100 after printing is completed and the paper is ejected. This is to shorten the time from when the rear end of the image-receiving paper 2 passes the pressure roller 97 to when the paper is ejected.

Note that while the leading edge of the image receiving paper 2 is sandwiched between the paper ejection rollers 100 and 101, but the rear end is still sandwiched between the pressure roller 97 and the platen 76, the pressure roller S7 and the platen 76 are Because the holding force is strong, the paper ejection roller 10
0 rotates with some slippage.

As shown in FIG. 29, the lid exit 25 and the paper discharge roller 10
0 is designed to be somewhat shorter than the length of the image receiving paper 2. Therefore, when the rotation of the platen 76 stops at the origin position and the paper ejection roller 100 also stops rotating, the image receiving paper 2 also stops, but the leading edge of the image receiving paper 2 is at a position slightly beyond the ejection port 25. Stop. Therefore, the image-receiving paper 2 does not fall from the printer, and the operator can easily take out the image-receiving paper 2 by hand, which is convenient.

On the other hand, a paper ejection row that forms a pair with the paper ejection roller 100 ;) 101
is a pressure roller that simply presses against the paper ejection roller 100, and is supported by a rotating shaft 107 as shown in FIG. Both ends of the rotating shaft 107 are fitted into bearing holes 109 and 110 provided in the frame plate 108 of the ejection mechanism section. The bearing holes 109 and 110 are vertically long, so that the paper discharge roller 101 can freely move up and down. However, pressure springs 102 are provided on the left and right inside the frame plate 108, and the rotation shaft 1
07 is always pressed down. Therefore, tJl: The paper roller 101 is in pressure contact with the roller 100.

14. Limit switch group for cassette position detection As shown in FIG.
A limit switch LSwl and a second limit switch LSw2 are arranged at the back, and a third limit switch
A limit switch LSw3 is arranged.

These LSwl to 3 are for detecting the position of the cassette 1, and the exact position of the LSwl from the cassette mounting port 24 is at a position shorter than the entire length of the cassette 1. Therefore, when the cassette 1 is installed, the tip of the cassette 1 activates the first limit switch LSwl.
Turn on this switch. This ON signal causes the second motor 29 to start rotating, and this rotation is transmitted to the cassette transport rubber roller 30 via the drive system, and the roller 30 rotates to insert the cassette l~ into the back of the printer.

The leading end of the cassette 1 then activates the second I-switch LSh2 to turn it ON, and when it advances further and reaches the holding step 19, it activates the third rim I-switch LSw3 to turn it ON. At this time, the first limit switch LSwl is removed from the cassette 1 and turned OFF.

Overall length of cassette 1 and limit switches LSwl, LSw
2. The positional relationship with LSw3 is set as follows. Therefore, the following is detected in the signal LSwl~3.

Table 1 (Position detection of cassette 1) Figures 31 to 49 are for explaining the sequence of printer operations, and all show the inside of the printer from the right side, showing the positional relationship of the main parts. It is a conceptual diagram.

In addition, Fig. 30 shows the inside of the printer when viewed from the right side.
A limit switch LSw group, a thermal head 36,
7 is a conceptual diagram showing the positional relationship among the platen 76, the first solenoid 33, the third solenoid 23, the platen origin position detection cam 76e, and the receiving paper feed roller 70. FIG.

15. Automatic loading operation of the cassette 1 (see Figures 31 and 32) When the power switch l15 shown in Figure 8 is turned on, the first solenoid 33 for locking the cassette/main body part 1a and the cassette separation shown in Figure 10 are activated. 3rd solenoid 23 for
The plungers are retracted into the solenoids and the cassette 1 can be loaded as shown in FIG. 31.

When the cassette 1 is inserted into the cassette mounting port 24, the tip of the cassette is connected to the first limit switch LS shown in FIG.
Activate wl and turn this on. This ON signal starts energizing the second motor 29 and the electromagnetic clutch 35, and as shown in FIG.
It is transmitted to the cassette conveying rubber roller 30 through a drive system of gear 26, gear 27, and gear 28, and the cassette 1 is carried into the back of the printer.

As the cassette 1 moves deeper, the tip will eventually reach the 1st O.
Operate the second limit switch LSw2 shown in the figure to
Set it to N. This ON signal starts energizing the third motor 111, causing the gear 113 to rotate. The rotation of the gear 113 allows smooth engagement between the gear 113 and the ink sheet winding roller gear 14a of the ink sheet winding section 1b of the cassette 7.

Then, the cassette 1 advances further, and when it reaches the ink sort winding section holding mechanism section 19, the tip end is at the tenth position.
Operate the third limit switch LSw3 shown in the figure to
Set it to N. At this time, the first limit switch LSwl is removed from the cassette 1 and turned OFF. This is the state shown in Figure 32, which is the full length of the cassette 1.
wl.

The relationship with 2.3 is set as shown in Fig. 32, and the cassette 1 is moved to the first predetermined position 1, which is the innermost position 1, by the signals LSwl: OFF, LSw2: ON, and LS: ON. It is detected that something is wrong, and based on this detection signal, the power supply to the second motor 29 and the third motor 11 is stopped.
As a result, the cassette 1 stops at the first predetermined position, and the gear 1
13 also stops rotating.

16. Separation operation of cassette I-1 (see Figure 32) When it is detected that cassette 1 has reached the first predetermined position, the first
The 1ffl power to the third solenoid 23 shown in FIG.
cassette coupling lever 17b (see Fig. 2).
(see Fig. 6) and further push up the lever 17b to release the opening. The protrusion 21b is now in a high position.
maintains that state until it is energized again, prevents the separated ink notebook winding section 1b from retreating from the holding unit 19, and fixes it at that position.

After a while, a reverse rotation signal is sent to the second motor 29, and the cassette conveying rubber roller 30 is reversely rotated to move the main body 1a.
only begins to retreat.

Then, the main body portion 1a switches the first limit switch 5111.
is operated again and turned ON, and as the main body part 1a moves further backward, the second limit switch LSw2 eventually comes off from the main body part 1a and turns OFF, as shown in FIG. 33.

As a result, LSwl: ON LSw2: OFF LSw3: ON, and based on this signal, the second motor 29 and II
41, the power supply to the clutch 35 is stopped, and the main body portion 1a stops moving back and stops at the second predetermined position.

However, due to the rotational torque of the motor and other reasons, it is difficult for the main body 1a to stop instantaneously, so here, it is actually detected that the cassette ■ has reached the first predetermined position at the innermost position. When the power supply to the third solenoid 23 is stopped, the power supply to the first solenoid 33 (see FIG. 10) with a return spring is also stopped at the same time. This first solenoid 33 is for locking the main body 1ai, and when the power supply is stopped, the plunger 34 is returned.

The mechanism is such that it pops out from within the solenoid using the biasing force of the solenoid. However, when the cassette 1 is in the first predetermined position 5, the head of the plunger 34 is in contact with the bottom of the main body 1a. The head of the plunger 34 is hemispherical, so that when the main body 1a retreats, the head
Even if it touches the bottom of the vehicle, there is no problem in retreating. Then, a locking hole 11a provided at the bottom of the main body 1a
When the position of is lost to the position of the head of plunger 34,
The head protrudes under the biasing force of the return spring and fits into the hole 11a, instantly stopping and locking the main body 1a.

This state is shown in FIGS. 33 and 13, and corresponds to the "second state" in the present invention.

Further, by stopping the power to the first clutch 35, the power transmission between the second motor 29 and the cassette conveying rubber roller 30 is separated.

The ink sheet 4 is now in a bridging state between the main body portion 1a and the ink sheet winding portion 1b in the second state, and the setting of the cassette 1 is completed.

Further, the position of the main body portion 1a in this state is referred to as a second predetermined position.

17. Moving operation of the thermal head 36 from the low position to the middle position (see FIG. 34) The thermal head 36 takes three positions: high, middle, and low. When the cassette 1 enters the first predetermined position (31st to 33rd positions)
In Figure), the thermal head 36 is at a low position.

As explained in the previous section 16, when the setting of the cassette is completed, the second clutch 50 is turned ON and power supply to the second motor 29 is started, and the rotational force of the motor 29 is increased as shown in FIG. , gear 71 - gear 50a - clutch 50 - gear 51 - gear 47b - rotating shaft 47a - gear 47
- It is transmitted to the cam 46 via the gear 48, thereby causing the thermal head 36 to rise.

When the cam 46 shown in FIG.
St<5, LSw6, and LSw7 are turned off and on, respectively.
, OFF, and based on this signal, the second clutch 50 is turned OFF, the second motor 29 is also turned OFF, and the thermal head 36 is stopped at the middle position.

FIG. 34 shows this state, and printing preparation is now complete.

18. Feeding operation of image receiving paper 2 (see Fig. 35) When printing and preparation are completed, turn print switch 116 to O.
When N is selected, the second motor 29 starts to be energized and rotates.
As shown in FIG. 11, a gear 7 directly connected to a motor 29
1 rotates. This rotation is transmitted from gear 71 to gear 72, and an input shaft 73 to the clutch rotates. When the third clutch 74 is ON, this rotation is transmitted to the gear 75 coupled to the output shaft, and the gear 75 rotates.

When the gear 75 rotates, the circumferential gear 51a meshing with it rotates, and the intermittent gear 51b integrated with it also rotates.

As shown in FIG. 16, as the gears 51a and 51b rotate, the roller up/down cam 54 that is integrally connected to these gears rotates, and the cam follower 68 that is in contact with it rotates.
begins to lower, and as a result, the roller holding lever 56
Rotating counterclockwise in FIG. 16 around 6.67, the receiver paper feed roller 70 moves toward the cassette main body 1a.
contacts the image-receiving paper 2 through the opening Sa and presses the image-receiving paper 2. This state is shown in FIG. 168 tll.

During this series of operations, as shown in FIG. 16A (2),
Since it corresponds to the intermittent part of the intermittent gear 51b, the gear 51
Despite the rotation of b, the rotation is not transmitted to the gear 60, and therefore the gear 61 does not rotate, so the roller shaft 62 and the receiving paper feed roller 70 do not rotate.

After that, as shown in FIG. 16B (2), the intermittent gear 51
When b rotates and meshes with the gear 60, the rotation of the gear 51b is transmitted to the gear 61 via the gear 60, and the roller shaft 6
2 and the receiving paper feed roller 70 rotate. Then,
The image receiving paper 2 is discharged from the image receiving paper outlet 9a and passes through the guide plate 9.
2, then diagonally downward along the guide plate 93, and eventually the platen 76 as shown in FIG.
comes into contact with.

When the ejection of a predetermined length of the image receiving paper 2 is completed, the limit switch detection cam 52 shown in FIGS. 16 and 18 moves to the ninth position.
Limit switch LSi<9 is turned ON, and based on this ON signal, the power supply to the second motor 29 is stopped,
The rotation of 1 also stops. FIG. 16C shows this state.

Thereafter, when the charting of the receiving paper 2 to the platen 76 is completed, which will be explained in detail in the next section 19, the second
The motor 29 starts to be energized, and the gears 51a, 51b'
F! j, the cam 54 rotates. Eventually Cam Follower 6
8 rides on the protrusion of the roller up/down cam 54, and as a result, the receiving paper feed roller 70 rises and separates from the receiving paper 2.

At the same time, the limit switch detection cam 53 turns on the eighth limit switch LSw8 (state shown in FIG. 16), and based on this ON signal, ij! to the second motor 29! 1 electric is stopped, gear Sta, 5 l b, and others are exactly 1
It stops when it rotates. This state is shown in the 16th
This is diagram A.

19. Chucking of image receiving paper 2 to platen 76 (second
(See Figures 2 and 35) The image-receiving paper 2 is transferred to the cassette 1 by the image-receiving paper feed roller 70.
The state shown in FIG. 22 is when the paper is ejected from the platen 76 and stops when it comes into contact with the platen 76. The platen 76 is at the origin position.

As explained in Section 18, the limit switch detection cam 52 shown in FIGS. 16 and 18 turns on the ninth limit switch LSw9, and based on this ON signal, the power supply to the second motor 29 is stopped. Based on the same ON signal, the stepping motor 78 starts to be energized, and the platen 76 starts rotating in the direction of the arrow from the cooling position shown in FIG.

When the platen 76 rotates in the direction of the arrow, the platen 76
The fourth clutch 81 connecting the camshaft 80 and the camshaft 80 is OFF.
In this state, the camshaft 80 is fixed at the original position by a brake mechanism (not shown) 1 attached to the fourth clutch 81.

Nevertheless, as the platen 76 continues to rotate, the cam follower portion 84 which was in contact with the protrusion of the cam 82
C is released from the cam 82 and becomes free, and the claw 84 rotates clockwise due to the biasing force of the spring 85. As a result, the leading edge of the image receiving paper 2 is caught between the left arm 84a and the platen cylindrical portion 76a. Then, the leading edge of the image receiving paper 2 is chucked to the platen 76. FIG. 24 shows this state.

After the chucking is completed, the platen 76 rotates further, and eventually the power to the motor 78 is stopped at a predetermined rotation angle position, and the platen 76 is stopped. Simultaneously with the stop, the fourth clutch 81 starts to be energized, and the clutch is turned on (connected).

When the clutch 81 is turned on, the camshaft 80 (that is, the cam 82) rotates in synchronization with the platen 76, so even if the platen 76 rotates after this, the state shown in FIG. 2 is chucked on the platen 76.

20. Winding and stopping operation of ink sheet 4 (36th
(See figure) As explained in the previous section 19, when the platen 76 stops at a predetermined rotational angle position, the third motor 111 shown in Fig. 13 starts to be energized and the gear 113 starts rotating. The ink sheet 4 is taken up by a take-up roller 14. Then, the first photodetector (Of'-1) shown in FIG. 27 was used to monitor the movement (winding) of the ink sheet 4.
) detects the beginning of the Y color ink layer area, the third motor 111 is de-energized and winding is stopped, and the second solenoid 86 shown in FIG. 10 is turned on.
The plunger 87 presses the rubber ring 13a shown in FIG. 5 through the hole 11b of the cassette main body 1a, and the ink sheet supply roller 13 is removed. This state is the 36th
It is a diagram.

21. Moving operation of the thermal head 36 from the middle position to the high position (see Figure 37) The first photodetector (OP-1) shown in Figure 27 detects the beginning of the Y color ink layer area □ The process of feeding the ink sheet 4 until this leading 7 is detected is referred to as 7-color "heading" □□, and based on this detection signal, the ink sort supply roller 13 is locked, and the second clutch 50 is turned on, and the second motor 2
At 9, the 1ffl power is started and the motor rotates. This rotational force is transmitted to the gear 48 via the second clutch 50 as explained in Section 12, and the rotational force of the gear 48 is transmitted to the integrally coupled cam 46, thereby causing the thermal head 3
6 rises.

When the rotational position of the cam 46 shown in FIG. 27 reaches a predetermined rotational angle position, the fifth limit switch LSw5 is turned on and the sixth limit switch LS+w6 is turned off.

The 71st J Mitswitch LSw7 is turned OFF, and based on the signals from these three, the thermal
It is determined that the high position shown in FIG. It is in a crimped state by the force of the spring 42 shown in Fig. 28.

Print preparation is now complete. After this, if there are no particular problems, the process will automatically proceed to the next step.

22. Y color printing operation (see Figure 37) As explained in Section 21, based on the signals 13w5:○N LSw6:OFF LSw7:OFF, the power supply to the second solenoid 86 is stopped and the ink sheet supply roller 13 unlocked,
On the other hand, energization of the third motor 111 and the stepping motor 78 is started.

The stepping motor 78 is energized by pulses (intermittent).
Therefore, the image receiving paper 2 advances intermittently one line at a time. In this case, the ink sheet 4 is overlapped with the image receiving paper 2, and since both are pressed together between the platen 76 and the thermal head 36, they become one body due to mutual friction.

On the other hand, the third motor 111 is a DC motor that rotates continuously, but as explained in Section 9 (see Figure 14), if a load of more than a predetermined value is applied to the gear 113, this motor will idle. Then, ink sheet 4 does not advance.

That is, the advancement of the image receiving paper 2 and the ink sheet 4 is controlled or driven by the platen 76, and the rotation of the third motor 111 merely takes up the winding 1) of the ink sheet 4.

In the current state, the thermal head 36 is in a high position, the image receiving paper 2 and the ink sheet 4 are in pressure contact between the platen 76 and the thermal head 3G, and the platen 76 is in pressure contact with the thermal head 3G.
6 is stopped. To start printing, press platen 7.
6 is rotated and the thermal head 36 is not energized at the same time.

If you do this at the same time, ■ The printing position may shift for several lines from the start of printing due to the drive system gear shift, and ■ Printing will start before the stable cycle of the stepping motor 8 is reached, so the Print position deviation occurs between 1 and 2 lines.

In order to avoid those inconveniences, for example, between 10 lines,
i Nibraten 7 while in pressure contact at the same cycle as during printing
Rotate 6 to perform idle feeding. Thereafter, the thermal radar 36 is energized to print the first line.

Next, the ink sheet 4 and the image receiving paper 2 are advanced by one line and stopped, and the second line is printed.

Below, if you print up to the last line in the same way, the receiving paper 2
A Y-color two-dimensional image is reproduced above.

When the seven-color printing is completed, the power supply to the thermal head 36 is stopped, and the image receiving paper 2 and the ink sheet 4 are fed by a predetermined amount while being in pressure contact, and then the power supply to the stepping motor 78 is stopped. to stop the platen 76.

The reason for performing idle feeding in this press-contact state will be described below.

As a method to cue up colors after M color (including M color),
■ A method of detecting each color (Y, M, C) with a sensor and winding up the ink sheet 4 to control it, or ■ Y, M, C
A marking is provided at a position corresponding to the mark using a margin or the like, and the marking is detected and the ink sheet 4 is wound up.
There are several ways to control it, but the former ■ is for each color (Y, M, etc.).

The need to identify C) increases costs by preparing a plurality of sensors, and the latter also has drawbacks such as high costs due to marking in the margins of the ink sheet 4.

In this embodiment, only the Y color is detected by a 1 m long sensor (a light emitting part and a light receiving part), and after winding and controlling the ink sheet 4, the cueing of the M color and subsequent colors is performed using the image receiving paper 2, the ink sheet 4,
While in the pressed state, the ink sheets are fed a predetermined amount, thereby bringing the leading positions of the M and C color ink layer regions of the ink sheet to the printing position (position of the heat generating part) of the thermal head 36.

23. Preparation for printing M color (see Figure 38) As explained in the previous section 22, once the predetermined amount of empty feeding is completed while the pressure is still in contact, that is, when the beginning of M color is completed, As a signal, 1. The stepping motor 78 is de-energized and the platen 76 stops rotating. 2. The second solenoid is turned on and the ink sheet supply roller 13 is locked again. 3. The second motor 29 is turned on. 1ffl of current in the opposite direction is applied, and the reverse rotation (in the direction of the arrow in Fig. 27A (1)) is started, and from this point on, the thermal head begins to descend.

When the thermal head 36 descends to the middle position, LSw5
:OFF LSw6:ON LSw7:OFF As a result, the middle position is detected, and based on this detection signal, the power supply to the second motor 29 is stopped, and the thermal head 36 is stopped at the middle position.

However, since the power supply to the third motor 111 is not stopped, the ink sheet 4 is about to be wound up. By this operation, even if wrinkles were generated on the ink sheet 4 during seven-color printing in the previous process, the wrinkles are smoothed out. This wrinkle smoothing is preferably performed for each color to prevent accumulation.

Next, based on the middle position detection signal, the second clutch 50 is turned on, and the iM power to the second motor 29 is started, causing the motor to rotate. As a result, the thermal head 36 rises, and when it reaches the high position, the second clutch 50 is turned on. The power supply to the second motor 29 is stopped and the motor 29 stops. Thereafter, energization of the stepping motor 78 is started, and the platen 76 rotates until 10 lines before the start of M color printing, and then stops.

This completes the preparation for M color printing, and if there are no particular problems, the process will automatically proceed to the next step.

24. M color printing operation (see FIG. 39) i: Following the step i, the following operations are performed in the same manner as the Y color printing operation.

25. Preparing for 0-color printing (see Figure 40) Following the previous process, M-color pudding 1. It operates in the same way as Jbi.

26. C color printing operation (see FIG. 41) Following the previous step, the following operation is similar to the Y color printing operation.

In this way, three-color images of Y, M, and C are superimposed and printed on one image-receiving paper 2, and a full-color image is reproduced.

27. Ejection operation of the image-receiving paper 2 after printing (42nd
(See figure) When the 0-color printing is completed and all printing is completed, the ink sheet 4 and the receiver paper 2 are continuously fed by a predetermined rotation angle while being in pressure contact, and then the power supply to the stepping motor 78 is stopped. The platen 76 stops.

Next, as shown in FIG. 42, the second solenoid 86 is turned on to rotate the ink seal l-supply roller 13, and at the same time, the second motor 29 starts to rotate in reverse, causing the thermal head 3 to rotate.
6 begins to descend. LSw5 is OFF, LSw6 is ON
, LSw7 becomes OI'F, the second motor 29 is stopped and the thermal head 36 is stopped at the middle position. At this point, the power supply to the second clutch 50 is stopped, the clutch is disengaged, and even if the second motor 29 rotates thereafter, the thermal head 36 does not move.

Based on the signal that the thermal head 36 is in the middle position, the stepper motor 7B starts to drive the platen 7.
6 rotates again, and at the same time, the fourth clutch 81 shown in FIG.
76d) shown in the figure is disconnected from the camshaft 80, and the camshaft 80 and cam 82 are fixed at the original angular position by the action of a brake mechanism (not shown).

On the other hand, the platen 76 continues to rotate further, and as shown in FIG. The cam follower portion 84C of the cam 82 begins to come into contact with the protruding portion of the cam 82, and the pawl 84 gradually rotates around the shaft 83 against the urging force of the retainer 285, and the left arm (clamp portion) 84a of the pawl is attached to the metal platen. It separates from the cylindrical portion 76a and is released from chucking. When the image receiving paper 2 is further rotated, the tip of the right arm (protrusion) 84b protrudes from the surface of the rubber portion 76C of the platen, and thereby the tip of the image receiving paper 2 is protruded from the outer peripheral surface of the platen 76.

As a result, the leading edge of the image-receiving paper 2 largely rises from the inner circumferential surface of the platen 76 with the help of its own repulsive elasticity, and as the platen rotates, the lower guide plate 9
Ride on top of 9. Thereafter, the image-receiving paper 2 advances between the pair of guide plates 98 and 99 as the platen rotates, and eventually the leading edge of the image-receiving paper 2 is caught between the paper ejection rollers 100 and 101.

Thereafter, the image receiving paper 2 is transferred to the platen 7 as shown in FIG.
The rotation of the roller 100, which is driven to rotate from the roller 6 through the pulley 103, belt 105, and pulley 104, further advances between the guide plates 98 and 99, and when the tip of the image receiving paper 2 is slightly out of the discharge port 25, the image receiving paper 2 is removed. The rear end passes the roller 100 and the image receiving paper 2 stops. In other words, the outlet 25
The distance between the paper ejecting rollers 100 and 101 (shown in FIG. 29) is designed to be slightly shorter than the total length of the image receiving paper 2, so that the image receiving paper 2 after printing is as shown in FIG. 44. Since the leading end of the printer stops at a position slightly protruding from the printer, there is no problem of the receiving paper 2 falling out of the printer, and the operator can easily take out the receiving paper 2 by hand.

On the other hand, regarding the platen 76, after releasing the chuck of the image-receiving paper 2, the platen 76 passes through the origin position once before finishing ejecting the image-receiving paper 2, and then rotates one more time to reach the second position.
The first time the home position is set to 4th limit switch LSw4 is turned ON.
When detected, the stepping motor 78 is de-energized and the platen stops at the original position. This means that the platen 76 has rotated five times, counting from the beginning.

Furthermore, based on the above-mentioned ON signal of LSw4, the energization to the second solenoid 86 and the third moke 111 is stopped.
The ink sheet supply roller 13 is unlocked and the winding of the ink sheet 4 is stopped.

All printing operations are now complete.

28. How the printing operation ends when the last image-receiving paper 2 in the cassette is printed When the last image-receiving paper 2 to be printed is ejected from the cassette l, the second photodetector (shown in FIG. 13) OP-
When 2) detects that there is no image receiving paper 2 through the window 10 of the cassette main body 1a, the cassette 1 must be replaced. Therefore, the way the print operation is completed changes somewhat.

When the 0-color printing is completed and all printing is completed, the stepping motor 78 is moved after a predetermined rotation angle.
The power supply to the platen 76 is stopped, and the platen 76 is stopped.

Next, as shown in FIG. 45, the second solenoid 87 is turned on to lock the ink sheet supply roller 13, and at the same time, the second motor 29 starts to rotate in reverse, and the thermal head 36
begins to descend. LSw5 is OFF, LSw6 is OFF
, LSw7 is turned on, the second motor 2S is stopped and the thermal head 36 is stopped at a low position. At this point, the power supply to the second clutch 50 is stopped and the clutch is disengaged.After this, even if the motor 29 rotates, the thermal head 36
never moves.

Based on the signal that the thermal head 36 has reached the low position, the stepping motor 78 starts to be energized, and the platen 7
6 rotates again, and at the same time, the fourth clutch 81 is turned off.
F, and the cam shaft 80 and cam 82 are fixed at the original angular position.

Then, as the platen 76 continues to rotate, the chucking is released when the pawl 84 passes the position of the pressure contact roller 97 as explained in Section 27, and as shown in FIG. The paper is ejected during

When the platen 76 rotates a total of five times and reaches the home position as shown in FIG.
8 is stopped, and the platen stops at the origin position.

29. Combining operation of cassette 1 (see Figure 48) 1 above
Based on the 3w4 ON” signal, the 1st and 2nd solenoid 86
2. The first solenoid 33 is started to be energized and the cassette main body 1a is unlocked; 3. The first clutch 3
5 is ONL. 4. The second motor 29 starts rotating, and the cassette conveying rubber roller 30 shown in FIG. 10 rotates forward to move the main body 1a toward the back. At this time, the third motor 111 is still rotating and the ink sheet 4 is taken up by the take-up roller 14.

When the main body 1a reaches the innermost first predetermined position, LSw1:0FF LS220N LSw3:ON is established, and when this state is detected, the power supply to the second motor 29 is stopped. The main body portion 1a stops.

At the same time, the third solenoid 23 is energized and the skein, 1
- The temporary separation slide 21 is lowered, and the cassette coupling lever 17b is therefore rotated counterclockwise (in FIG. 6) by the biasing force of the spring 17C, and the notch 178 of the lever engages with the pin 18 and is locked. state, and the combination of the cassettes 1 is completed as shown at 480.

[04] Explanation of nh output operation of cassette y) 1 When the cassette 1 is assembled, a reverse current is applied to the second motor 29, and the main body 1a starts to move backward.

When the signal LS20N13w2:OFF and S23:OFF is detected, the power supply to the second motor 29 and the first clutch 35 is stopped, the rotation of the motor is stopped, and the clutch is turned off. 0FFL, the cassette 1 stops at the third predetermined position plane. At this time, as shown in FIG. 49, the total length of the cassette 1 is equal to
Since the cassette 1 is designed to be longer than the distance from the cassette 2, the front of the cassette 1 stops slightly protruding from the mounting opening 24, so that the cassette 1 does not fall from the printer, and the printer can easily take it out by hand. I can do it.

This completes the discharge operation of Caseno) I.

〔Effect of the invention〕

As described above, according to the present invention, the lock release device and ink sheet winding portion lock (
Although the time required to release the lock is short, the ink sheet winding section is locked for a long time, so in the device of the present invention, the plunger is elastic when the solenoid is energized. The plunger is attracted into the solenoid against the repulsive force of the member, and when not energized, the plunger protrudes outside the solenoid due to the repulsive force of the elastic member (this locks the ink sheet winding section), resulting in low power consumption. You also get the advantage of being able to do it.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the top of the cassette 1. FIG. 2 is a perspective view of the bottom of the cassette l. FIG. 3 is a partially cutaway perspective view of the cassette 1 in a second separated state. FIG. 4 is a perspective view of the ink sheet 4. FIG. 5 is a horizontal sectional view of the cassette 1. FIG. 6 is a vertical sectional view of the cassette 1 at the X, -X position shown in FIG. FIG. 7 is a vertical sectional view of the cassette 1 at the Xz Xz position shown in FIG. FIG. 8 is an external perspective view of the thermal transfer printer. FIG. 9 is a perspective view of the main internal parts of the thermal transfer printer. FIG. 10 is a schematic perspective view of the cassette/gutter drive mechanism and the ink sheet winding section holding mechanism. FIG. 11 is a conceptual diagram showing the power transmission mechanism of the mechanical parts of the entire printer. FIG. 12 is a partially sectional plan view of the cassette conveyance rubber roller 30 and its surroundings. FIG. 13 is a schematic perspective view 1 of the cassette drive mechanism section and the ink sheet winding section holding mechanism section with the cassette 1 in the second state attached. FIG. 14 is a plan view of the vicinity of the third motor. FIG. 15 is a vertical sectional view of the receiving paper feeding mechanism section. FIG. 16 is a left side view of the receiving paper feeding mechanism section. Figure 16A-16c shows the image receiving paper 2, the image receiving paper feeding roller 70, the roller holding lever 5 [; and the cam 54].
168-16c is a conceptual diagram showing the relationship between the gear 60 and the intermittent gear 51b. FIG. FIG. 17 is a plan view of the receiving paper feeding mechanism section. FIG. 18 is a perspective view of the receiving paper feeding mechanism section.
The figure is a right side view of the roller holding lever 56 and its surroundings. FIG. 20 is a horizontal sectional view of the platen 76. FIG. 21 is a plan view of the vicinity of the platen 76. FIG. 22 is a vertical sectional view of the platen 76 at the X3 X3 position shown in FIG. 20. FIG. 23 is a perspective view of the claw 84. FIG. 24 is a vertical cross-sectional view of the platen 76 at a different rotation angle from FIG. 22. FIG. 25 is a vertical sectional view of the platen 76 at a different angle of rotation from FIGS. 22 and 24. FIG. 26 is a perspective view of a mechanism for introducing and discharging the image receiving paper 2. FIG. FIG. 27 shows the thermal head 36! A- It is a perspective view of the lowering mechanism. FIG. 27A is a tQ conceptual diagram showing the relationship between the cam 46 and the cam follower 39a that moves the thermal head 36 up and down. FIG. 28 is an exploded perspective view of the elevating mechanism section of the thermal head 36 as seen from the back side. FIG. 29 is a conceptual diagram of the guiding and ejecting mechanism for the image receiving paper 2 viewed from the left side. Fig. 30 shows the limit switch +-sw group and the thermal hemo □! when the printer is viewed from the right side. 36, platen 76, first solenoid: 33, and third solenoid 2
3 is a conceptual diagram showing the positional relationship among the platen original Φ, the position detection cam 76e, and the receiving paper feeding roller 70. FIG. Figures 31 to 49 show the printer viewed from the right side! ,
FIG. 7 is a conceptual diagram showing the relationship between the cassette 1 and the main parts of the printer. (Explanation of symbols of main parts) Recording material cassette 18 Main unit 1b Ink sorting winding unit 2 Receiving paper 3 Receiving paper supply chamber 4- Ink sheet 5 - - Ink supply chamber 6 - 1 - 1 Main body housing 7---Compression spring 8--1 mounting plate 9 a--1 Receiving paper feed roller hole 9b.--111 Receiving paper outlet 10-1 Window 11a 11b - Ink sheet supply roller locking hole 11C
- Cassette separation notch hole 12 - Guide groove 13 - - Ink sheet supply roller 13 a - Rubber ring 14 Ink sheet winding roller 14 a - Ink sheet winding roller gear 15 -
--- Ink sheet winding unit housing 15a - Projection piece 16 - Ink sheet winding gear hole 17a/Lever shaft +7b - Cassette coupling lever 17C - Lever return spring 17d - Spring winding shaft +76 Notch 18 Lever hook is a pin IS - Ink no. 1 - Holding mechanism section 2Qa of winding section 1b Left side cassette guy I; 2Qb - Right side cassette guide 20C connection plate 21 Cassette separation slide plate 22 Lever push-up protrusion 23 Third solenoid (for cassette separation) 23a
Plunger 23b--Plunger return spring 24--Cassette mounting port 25--Printed receiving paper discharge port 26--Gear 27--Gear 28-1--Gear 2S---No. 2 motors 30-m-cassette conveying rubber roller 31--one right cassette guide 32-m-left cassette guide 33--first solenoid for locking the main body 34--plunger 35-first clutch 36--signature-marque note 37- Mounting stand 38- Shaft 39- Carriage horn 39a Cam follower 39b Guide roller 39C Guide roller 40---Frame 41---Frame stand 42---Spring 43---Stopper 44a-Ink sheet guide roller 44 b - 44C -- 45--Guide plate 46-----Cam 47--Gear 47a...Rotating shaft 47b-Gear 48--Gear 49a-Cam 49b...〃49C-- /1 49 d - Shaft 50 - - 1 - 2nd clutch S Oa - Gear S 1 - - Gear 51a - Full circumference gear 51b Intermittent gear 52 - 11 - Rimitosutoshikku Cam 54 --
One roller up and down cam 55-11----Axle 56---Roller holding lever 57---Bearing 5i---One roller bearing 59---One shaft 60---Gear 61 --- Gear 62 --- Roller shaft G3a, one board (left side) 63b-, one board (right side) 64-111 -- Bearing 65 --- Bearing 66 --- Shaft 67 --- One shaft 68 --- Cam follower 69 --- One tension spring 70 -- One receiving paper feed roller 71 --- Gear 72 --- Gear 73--One rotating shaft 74--Third clutch 75--Gear 7 G--Platen 76a-Cylindrical portion 7 Gb--One side surface portion 76C-Rubber portion 76d-Shaft portion 76 e - Cam 77 for detecting platen origin position - Gear 78 - First stepping motor 79 - Gear 80 - One cam shaft 81 - Fourth clutch (one-bore clutch) 82 - Cam 83 - One shaft (claw 84 (rotating shaft) 84--...-Receiving paper/cha, king claw 84a--
Left arm (clamp section) 84b...-Right arm 84 C--Cam follower section 85--One fixed spring 86--1--Second solenoid (for ink sheet supply roller lock) 87-- Plunger 88 - - - Plate 88 a - - Shaft 88 b - - Shaft 89 - - Shaft 90 - - Plate rotation limiting pin 91 - - 1 - 2 Sili spring 92 - - Guide plate 93 - -m--Guide plate 94--Press roller 95--Lever 95a-Rotary shaft 96-Tension spring 97-Pressure (mistress roller 921-Upper guide plate 99 Lower guide plate 100-Paper discharge roller (For driving) 101 - Paper discharge roller (for pressure contact) 102 Pressure contact spring 103 - Pulley 104 - Pulley 105 - Belt 106 - Rotating shaft 107 - Rotating shaft 108 - Frame plate 109 - Bearing hole (left side) 110 - Bearing Hole (right side) 12 3rd motor 112 - shaft 113 - gear 114 - compression spring 115 - power switch + 16 print switch 117 display section 118 pin L Sw 1 - 1st rim switch, switch L Sw 2
-1 2nd limit switch LSw 3 1st limit switch 4 - 4th limit switch LSw 5 - 5th limit switch LSw 6 - 6th limit switch LSw 7 - 7th limit switch LSw 8 - --8th Riminotosui, ChiLSw9-
9th Liminotosui, Chi 0P-1-1 1st photodetector (for locating the beginning of the Y color ingi l?!i area) OP-2 - 2nd photodetector (for detecting the presence or absence of image receiving paper 2) 1st
Figures and /b Figure 2 Figure 4 Figure 14 Figure 7 Figure 2/Figure 22 Figure N23 Figure Z Figure 24 Figure 25

Claims (1)

[Scope of Claims] A cassette main body integrally comprising a first part that stores image-receiving paper and a second part that stores unused ink sheets, and an ink sheet roll to which the starting end of the ink sheet is attached. The take-up roller includes an ink sheet winding section disposed in a storage chamber, and the ink sheet winding section is in a first state where it is combined with the cassette main body, and in a state where it is separated from the cassette main body and therebetween. In a lock release device for releasing a locked state when a recording material cassette for a thermal transfer printer is assembled, the lock is configured to take at least two types of states, that is, a second state in which a thermal head and a platen are interposed; The release device includes a solenoid, a plunger, a contact member that moves in conjunction with the movement of the plunger, and an elastic member that returns the plunger, and when the solenoid is energized, the plunger resists the repulsive force of the elastic member. and is attracted into the solenoid, and when de-energized, the plunger protrudes outside the solenoid due to the repulsive force of the elastic member, and the abutting member also serves as a locking device for the ink sheet winding section. Unlocking device.