JPH0721337Y2 - Transfer paper cartridge - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a transfer paper cartridge in which a transfer paper and a recording paper used in a thermal printer are integrally incorporated.

(Prior Art) Conventionally, there is generally known a thermal printer that transfers a predetermined color ink onto a recording paper by melting or sublimating the color ink applied to a base film forming a transfer paper by heat of a thermal head. In such a thermal printer, a color image is printed by repeating the transfer operation as described above for each color (for example, yellow, magenta, and cyan).

In such a general thermal printer, the recording paper is stored in a recording paper supply tray in the apparatus body, and the transfer paper is wound around a pair of cores in the apparatus body. The recording paper and the transfer paper are set independently in the apparatus main body.

On the other hand, the present applicant previously filed the above-mentioned recording paper and transfer paper in a single transfer paper cartridge according to an application such as Japanese Patent Application No. 62-169655 or Japanese Patent Application No. 63-31345, and We proposed a thermal printer and a transfer paper cartridge in which a transfer paper cartridge can be set at the same time by mounting the transfer paper cartridge in the main body of the apparatus.

The transfer paper cartridge is formed by integrally forming a recording paper storage unit 1 for storing the recording paper K and a transfer paper storage unit 2 for storing the transfer paper T as shown in FIG. The transfer paper storage unit 2 is configured to hold and store a pair of supply roll 3 and take-up roll 4 around which the transfer paper T is wound, by a bearing unit (not shown) formed on the side wall. .

Further, the recording paper storage unit 1 includes a tray 5 on which the stored recording paper K is placed, a spring 6 for urging the tray 5 upward in the drawing, and a separation claw for separating the recording paper K one by one. 7 and a lid 8 for opening and closing the recording paper storage unit 1 when supplying the recording paper K.

On the other hand, in the thermal printer, when the transfer paper cartridge having the above-described structure is mounted, the take-up roll 4 is removed from the bearing portion in the transfer paper cartridge by an arm (not shown) and moved to a predetermined position in the apparatus main body. By doing so, the transfer paper T is loaded, and at the same time, the rolls 3 and 4 are engaged with the drive shaft that drives them to rotate.

Then, when the transfer paper T is completely loaded and printing is started, the supply roller 9 is brought into contact with the recording paper K through the supply opening 10 so that the recording paper K is supplied from the supply opening 10 to the platen inside the apparatus main body. It is designed to supply one by one onto the roller.

(Problems to be Solved by the Invention) In the conventional transfer paper cartridge as described above, when the take-up roll around which the transfer paper T is wound and the supply roll are disengaged from the bearing portion due to vibration, etc. There is a risk that the above-mentioned rolls may rattle in the paper storage unit and come into contact with each other, or wrinkles may occur on the transfer paper.

In addition, there is a risk that the removed rolls may be carelessly rotated and the transfer paper may sag in the transfer paper storage portion, or the winding state of the transfer paper in each roll may be loosened.

(Means for Solving the Problem) The present invention has been made in view of the above-mentioned circumstances, and stores the winding roll and the supply roll around which the transfer paper is wound in a more reliable and safe state. It is an object of the present invention to provide a transfer paper cartridge that can be used.

In order to achieve this object, the present invention stores a pair of supply rolls and take-up rolls around which transfer papers are wound so that the take-up rolls are located on the front side in the cartridge body. And a recording paper storage unit for storing recording paper in the cartridge body, and the transfer paper storage unit is openably and closably attached to the cartridge body by a fixed portion fixed to the cartridge body and a hinge. And a lid portion provided with a tongue piece provided between the supply roll and the winding roll when the lid portion is closed. A cartridge is provided.

(Embodiment) A preferred embodiment of the transfer paper cartridge according to the present invention will be described in detail below with reference to FIGS. 1 to 12.

The transfer paper cartridge according to this embodiment is shown in FIGS.
As shown in the figure, the cartridge body 20 and the transfer paper storage unit 21
The cover 22 and the bottom plate 24 of the recording paper storage 23 are generally configured.

In this transfer paper cartridge, the transfer paper storage portion 21 is formed by the fixed portion 25 formed at the front portion (right side portion in the drawing) of the cartridge body 20 and the lid portion 22 facing the fixed portion 25. This transfer paper storage part is configured
The transfer paper T is stored in the roll 21 while being wound around the winding roll 32 and the supply roll 33.

Therefore, as long as the lid 22 is closed, it is possible to prevent the transfer paper T stored in the transfer paper storage 21 from being inadvertently touched.

The take-up roll 32 in this embodiment is arranged in front of the cartridge body 20 with respect to the supply roll 33.

Further, the lid portion 22 has a hinge mechanism 26 on one side.
Is pivotally supported on the cartridge main body 20 so that the lid portion 22 can be opened and closed with the side edge 22a parallel to the front surface of the cartridge main body 20 as the center of rotation as shown in FIG. 2 or FIG. Has become.

That is, the front side of the lid 22 is expanded.

A spring 26a is used for the hinge mechanism 26, and the lid portion 22 is always biased in the closing direction by the spring 26a.

Further, the height dimension H ₁ of the lid portion 22 in this embodiment is set to approximately half the height dimension H ₂ of the transfer paper cartridge.

When the lid 22 is opened with respect to the fixed portion 25,
An opening portion 37 for drawing out the winding roll 32 to the outside is formed on the front surface of the cartridge, and the opening portion 37 has an opening amount sufficient for drawing out the winding roll 32 to the outside by a thermal printer described later, that is, the winding roll 32. It is expanded by an amount slightly larger than the maximum diameter of.

Semi-circular notches 27 and 28 are formed on both side walls of the fixed portion 25 and the lid portion 22 of the transfer paper storage portion 21 as shown in FIGS. 2 and 3. , These notches 27
And 27, 28 and 28 correspond to each other when the lid 22 is closed, that is, when the lid 22 and the fixing portion 25 are brought into contact with each other as shown in FIG. Transfer paper storage
It will be formed on the side of 21.

In the transfer paper storage portion 21, the bearings formed by the cutouts 27 and 28 support both ends of the supply roll 33 and the take-up roll 32 around which the transfer paper T is wound. The transfer paper T is accommodated therein, and both ends of the rolls 32 and 33 are exposed to the outside through such bearing portions.

Further, the bearing portion is provided with the second portion when the lid portion 22 is opened.
Notches 27 and 27, 28 and 28 as shown in the figure or FIG.
Is divided and the supporting state of each roll 32, 33 is released.

Incidentally, on both end surfaces of the cores 34, 35 of the rolls 32, 33, a concave portion 34a, which engages with a convex portion of a rotary shaft or a drive shaft described later,
35a are formed respectively.

Further, a tongue piece 36 made of flexible soft plastic is hung on the inner surface of the lid portion 22,
The tongue piece 36 is arranged so as to be located between the supply roll 33 and the take-up roll 34 when the lid 22 is closed, as indicated by the alternate long and short dash line in FIG.

Further, the tongue piece 36 is arranged parallel to the front surface of the cartridge body 20 and has a width dimension slightly longer than the width dimension of the transfer paper T.

As a result, when the lid 22 is closed, the rolls 33, 3
Since 4 are separated from each other via the tongue piece 36, even if any of the rolls fall out of the notches 27, 28, it is possible to narrow the space in which the rolls 32, 33 rattle. It is possible to reliably prevent the transfer papers wound around the rolls 32 and 33 from coming into contact with each other.

Further, since the tongue piece 36 sags the transfer paper T between the rolls 32 and 33, it is possible to prevent an unnecessary load (tension) from being applied to the transfer paper T, and
Inadvertent rotation of the rolls 32 and 33 can be restricted.

Since the tip of the tongue piece 36 is formed in a semicircular shape, it is possible to prevent the transfer sheet T from being damaged by the tongue piece 36.

In addition, in the transfer paper cartridge of the present embodiment, when the transfer paper cartridge is taken out from the thermal printer, the lid portion 22 is set so as not to be opened accidentally.
A lock mechanism as shown is provided.

That is, the lock mechanism is composed of a lock member 45, a spring 46 for urging the lock member, and projecting pieces 22b formed at both ends of the side edge 22a of the lid portion 22. One end side is pivotally supported by a shaft 47, and a lock piece 45a and a lock release piece 45b are formed on the other end side.

The lock member 45 is constantly urged in the clockwise direction about the shaft 47 by the spring 46, and when the transfer paper cartridge is taken out from the thermal printer, as shown by a chain line in FIG. On the lock piece 45a
Goes under the projecting piece 22b of the lid 22 and contacts the projecting piece 22b of the lid 22.

As a result, the lid 22 is provided with the protrusion 22b and the lock piece 4b.
Rotation is restricted by engagement with 5a, and the lid cannot be opened.

At this time, the lock release piece 45b of the lock member 45
Is a guide groove 20 formed on the side wall of the cartridge body 20.
It is elastically fitted in the opening 20b formed in a.

When the transfer paper cartridge is mounted on the thermal printer, the lid 22 is locked by the guide ribs on the printer side that fit into the guide grooves 20a as shown by the solid line in FIG. It is released by pressing and shifting the release piece 45b in the counterclockwise direction.

Thus, according to the transfer paper cartridge of this embodiment,
It is possible to reliably prevent the lid 22 from being opened when the transfer paper cartridge is being taken out from the thermal printer, and it is possible to reliably protect the stored transfer paper T.

In addition, the lid portion 22 and the fixing portion 25 of the transfer paper storage portion 21 as described above.
As shown in FIG. 1, each of the vertical corners facing the front surface of the is chamfered so that the transfer paper cartridge can be easily inserted into an insertion port of a thermal printer described later.

Further, by chamfering the front corners of the lid 22, the height of the tip of the lid 22 of the transfer paper cartridge when the lid 22 is opened as described above can be kept low. The dead space in the thermal printer in which this transfer paper cartridge is mounted can be reduced.

In addition, on both sides of the front surface of the transfer paper storage portion 21, the lid portion
Slits 38 and 39 are formed between the fixing unit 25 and the fixing unit 25 so that a loading arm for pulling out a roll of a thermal printer, which will be described later, can be inserted into the transfer paper storage unit 21 through the slits 38 and 39. Has become.

On the other hand, the bottom surface (outer surface) of the fixed portion 25 of the transfer paper storage portion 21
5, a pair of ribs 40, 40 are formed as shown in FIG. 5, and these ribs 40, 40 form the printing surface of the recording paper K to be sent out and the bottom surface of the transfer paper storage portion 21 as described later. These are separated from each other to prevent them from directly touching each other.

These ribs 40, 40 extend in a direction substantially perpendicular to the front surface of the cartridge body 20 (direction parallel to the direction in which the cartridge body 20 is inserted), that is, in the direction in which the recording paper is fed out, and its cross-sectional shape is The ribs 40, 40 are formed in a semi-cylindrical shape, and the positions of the ribs 40, 40 are set so as to correspond to the blank portions K1 on both sides of the printing portion of the supplied recording paper K.

Therefore, it is possible to reliably prevent the ribs 40, 40 from rubbing and damaging the printed portion of the recording paper K.

Further, at a predetermined position on both sides of the bottom plate of the fixing portion 25, the transfer paper cartridge is mounted on a thermal printer so that the transfer paper cartridge cannot be pulled out when the take-up roll 32 is pulled out. Lock step 48
Are formed.

That is, a locking projection of a thermal printer, which will be described later, is engaged with the locking step portion 48, and the locking projection is interlocked with the operation of the loading arm that pulls out the winding roll 32. It is adapted to engage with the locking step portion 48.

As a result, when the take-up roll 32 is not housed in the transfer paper storage unit 21 of the transfer paper cartridge, that is, when the take-up roll 32 is pulled out into the thermal printer by the loading arm, the transfer paper cartridge is It is possible to prevent the occurrence of an accident such as taking out from the thermal printer.

Further, a recording paper storage portion 23 located on the rear side of the transfer paper storage portion 21 is formed continuously with the transfer paper storage portion 21 as described above.

The recording paper storage portion 23 is composed of the rear side portion of the cartridge body 20 and the bottom plate 24, and the recording paper K is stored inside thereof.

Then, the stored recording paper K is sent out through the supply port 50 as shown in FIG. 2 or 5, passes under the bottom surface of the fixing portion 25 of the transfer paper storing portion 21, and passes through the thermal printer. It is designed to be transported to a predetermined position inside.

Further, a separation claw 51 is arranged in front of the inside of the recording paper storage section 23, and the recording paper K is moved by 1 by the function of the separation claw 51.
It is designed to be separated and sent out one by one.

Here, the separation claw 51 is fixed in the recording paper storage portion 23, and the height of the separation claw 51 is set so that the tip does not protrude from the bottom plate 24 and is retracted inward. There is.

As described above, since the transfer paper cartridge has no inadvertent protrusions, the transfer paper cartridge can be smoothly attached to the thermal printer.

A tray 52 on which the recording paper K is placed and a spring 53 for urging the tray 52 toward the supply port 50 are arranged in the recording paper storage unit 23.

The surface of the tray 52 (the surface on which the recording paper K is placed) in this embodiment is subjected to a texture treatment.
The frictional force between 52 and the recording paper K is set to be larger than the frictional force between the recording papers and smaller than the frictional force between the recording paper K and the supply roller of the thermal printer. It is possible to reliably send up to one of the above.

Further, as shown in FIG. 5, the bottom plate 24 is formed with a plurality of detection holes 24a corresponding to the type of the recording paper K and the like.

The number and length of these detection holes 24a are variable according to the type of recording paper K and the type of transfer paper T in this transfer paper cartridge, and these detection holes 24a are mounted in the thermal printer of this transfer paper cartridge. It is sometimes detected by a detection device described later inside the printer so that the printer can be set to an optimum operation mode.

Here, since these detection holes 24a in the present embodiment are formed in the bottom plate 24 that is separate from the cartridge body 20,
The cartridge body 20 can be commonly used for all recording papers and transfer papers by selectively using a predetermined bottom plate 24 in which the number of the detection holes 24a and the like are set according to the type of recording paper and the like.

Therefore, only one type of mold is required for injection-molding the cartridge body 20 of the transfer paper cartridge of this type using a plastic material, so that the cost of the transfer paper cartridge of this type can be reduced.

Further, since the detection holes 24a in the present embodiment are through holes, it is possible to visually confirm whether the recording paper K remains in the recording paper storage portion 23 through the detection holes 24a.

Further, as shown in FIG. 1, on both side surfaces of the cartridge main body 20 in the transfer paper cartridge provided with the transfer paper storage portion 21 and the recording paper storage portion 23 having the above-described configuration, the transfer paper from the recording paper storage portion 23 to A guide groove 20a is formed so as to extend over the lid portion 22 of the storage portion 21.

These guide grooves 20a engage with guide ribs in the thermal printer described later to facilitate the insertion of the transfer paper cartridge, and also to position the transfer paper cartridge in the printer. .

The front side of the guide groove 20a is expanded as shown in FIG. 1 so that the guide rib 20a can be easily fitted into the guide groove 20a.

Further, the front end of the guide groove 20a is formed in an edge shape by the expansion of the guide groove 20a as described above, so as to come into contact with the opening / closing cam of the thermal printer at a shallow angle when it is inserted into the thermal printer described later. It has become.

As a result, the lid 22 can be smoothly opened.

In addition, the upper surface of the cartridge body 20 in FIG.
A concave portion 20c is formed, and the transfer paper cartridge mounted on the thermal printer can be easily pulled out by putting a finger on the grip portion 20c.

By the way, in the transfer paper cartridge described above,
As shown in the figure, the supply port 51 for sending out the recording paper K is left open, but as shown in FIG. 6, a cover 24b for closing this supply port 51 in an unused transfer paper cartridge is provided. Connected to the bottom plate 24, this cover 24b and the bottom plate
A slit 24c may be provided between the slit 24 and the slit 24 so that the slit 24c can be folded.

Further, the cover 24b is provided with a grip portion 24d,
The cover 24b can be easily broken by placing fingers on the grip portion 24d.

As described above, by providing the cover 24b that closes the supply port 50, the recording paper K stored in the recording paper storage unit 23 is obtained.
It is possible to protect the recording medium and prevent dust from entering the recording paper storage unit 23.

Further, the detection hole 24a in the above embodiment may be provided in the cartridge body 20 as shown in FIG.

Next, the structure of the thermal printer in which the transfer paper cartridge as described above is mounted will be described.

As shown in FIG. 7, this thermal printer comprises a general platen roller 60 and a thermal head 61 inside the apparatus. The platen roller 60 is centered on a platen shaft 62 by a motor (not shown). A clamper 63 that is driven to rotate and holds the front end of the recording paper K on the surface of the platen roller 60 is provided.

The thermal head 61 is pivotally supported by a shaft 61a,
After the recording paper K is held by the platen roller 60, it is rotated counterclockwise by a drive motor (not shown) to come into pressure contact with the platen roller 60 via the transfer paper T and the recording paper K.

Further, in this thermal printer, a loading arm 64 is arranged coaxially with the platen shaft 62.

As shown in the drawing, a hook 65 is formed at the tip of the loading arm 64. The loading arm 64 is rotated clockwise while the both ends of the winding roll 32 are supported by the hook 65. The paper T is loaded at a predetermined position.

Further, this thermal printer is provided with a locking member 66 which works in conjunction with the loading arm 64 to fix the inserted transfer paper cartridge.

The locking member 66 has a base end side pivotally supported by a shaft 66b, and a tip end side of the locking member 66 for locking the transfer paper cartridge.
A locking protrusion 66a that engages with 48 is provided.

Further, the locking member 66 is biased in the clockwise direction by a torsion spring 67 fitted to the shaft 66b, whereby the proximal end side of the locking member 66 is attached to the loading arm 64. It is pressed against the side edge.

Therefore, when the loading arm 64 rotates clockwise, the locking member 66 also moves.
In order to rotate in the clockwise direction in conjunction with the rotation of, the locking projection 66a rises upward in the figure, which causes the locking projection 66a to engage with the locking step 48 of the transfer paper cartridge. It is designed to fix the transfer paper cartridge.

Further, inside the thermal printer, there is provided a guide rib 68 which is engaged with the guide groove 20a of the transfer paper cartridge, and an opening / closing cam 69 for opening and closing the lid 22 is provided in the vicinity of the guide rib 68. Is provided.

The opening / closing cam 69 is formed so as to cross the guide rib 68 obliquely, and engages with the tip of the guide groove 20a of the transfer paper cartridge, that is, the front side of the lid portion 22 when the transfer paper cartridge is inserted. The lid 22 is opened as the transfer paper cartridge moves.

Further, at a predetermined position of the device corresponding to the supply roll 33 accommodated in the mounted transfer paper cartridge, this supply roll 33 is provided.
A rotary shaft 70 that supports 33 is arranged, and similarly, a drive shaft 71 that rotationally drives the take-up roll 32 is arranged at a position corresponding to the take-up roll 32 that has been loaded.

The drive shaft 71 is rotationally driven by a drive motor (not shown), and the cores of the rolls 32, 33 are attached to the tips of the shafts 70, 71.
Convex portions 70a, 71a that engage with the concave portions 34a, 35a of 34, 35 are formed.

The rotary shaft 70 and the drive shaft 71 are the rolls 32, 3 described above.
When 3 is in a predetermined position, it projects from the lateral direction (direction orthogonal to the paper surface) and engages with the rolls 32, 33.

Further, 72 is a supply roller, and a pulley 73 mounted coaxially with the supply roller 72 and a pulley 75 mounted on a drive shaft 74 are connected by a timing belt 76 to rotate the supply roller 72 appropriately. It is like this.

The supply roller 72 is attached to a bracket 77, and the bracket 77 is mounted on the drive shaft when printing.
Rotational force of 74 causes the drive shaft 74 to rotate in a counterclockwise direction, so that the supply roller 72 is pressed against the recording paper K.

Further, a rotation roller 79 for forming a loading path for the transfer paper T and a roller 80 for pressing the recording paper K against the platen roller 60 are attached to the bracket 78.

Further, in this thermal printer, the detection hole 2 is provided at a position facing the detection hole 24a of the mounted transfer paper cartridge.
A detection device 81 for detecting 4a is arranged.

As shown in FIG. 8, this detection device 81 converts a pair of photocouplers, each of which includes a surface emitting type light emitting element 82 and a four-divided light receiving element 83, on a substrate 82 and detection outputs of these photocouplers into TTL signals. The light receiving element 83 of each of the photocouplers includes a transistor array 84 and the like, and the recording paper K is emitted from the light emitting element 82 and passes through the detection hole 24a.
By detecting the light reflected from the detection hole 24
It is designed to detect the number and shape of a.

Here, since the detection device in this embodiment detects the number of the detection holes 24a and the like by using the reflected light from the recording paper K having high reflection efficiency, the reliability of the detection output of the photocoupler is improved. Can be achieved.

Further, 85 and 86 are sheet metals that form a paper discharge path of the recording paper K to be discharged, and 87 is a path of the transfer paper T at the time of printing by rolling contact with the transfer paper T in conjunction with the thermal head 61. Is a roller that forms the.

When the transfer paper cartridge is mounted on the thermal printer having the above-described structure, first, as shown in FIG. 9, the lid 22 is opened with the insertion of the transfer paper cartridge, and the loading arm 64 moves the transfer paper cartridge. The hooks 65 of the loading arm 64 are inserted into the slits 38, 39 formed on the front surface of the cartridge, and the hooks 65 of the loading arm 64 form the core 34 of the winding roll 32.
Support both ends of.

When the transfer paper cartridge reaches a predetermined position, the rotary shaft 70 is supplied to the supply roll 33 at that position without pulling out the stored supply roll 33 from the transfer paper storage unit 21.
A mechanism and a space for pulling out the supply roll 33 to the outside are not necessary because the supply roll 33 is engaged and securely held.

Therefore, the structure of this type of thermal printer can be simplified and the size of the apparatus can be reduced.

Further, in this transfer paper cartridge, the take-up roll is pulled out to the front surface of the transfer paper cartridge by opening the lid 22 by the rotation operation of the lid portion 22 which is formed to have a height dimension approximately half the height dimension of the transfer paper cartridge. Opening for
Since the opening 37 is formed, the lid portion required to form the opening 37 is larger than the lid 37 that opens the lid to cover the entire front surface of the transfer paper cartridge. twenty two
The shift amount of can be reduced.

Therefore, in the transfer paper cartridge having such a configuration, the amount of displacement of the lid portion 22 can be minimized, so that the transfer paper cartridge accommodating portion inside the printer can be narrowed and the thermal printer of this type can be miniaturized. Can be enabled.

Further, the front end of the guide groove 20a of this transfer paper cartridge is formed in an edge shape as described above, and comes into contact with the opening / closing cam 69 of this thermal printer at a shallow angle when it is inserted into the thermal printer. ing.

As a result, the lid 22 can be smoothly opened.

Further, according to such a transfer paper cartridge, it is possible to reduce the amount of displacement of the lid portion as compared with, for example, a case where the lid portion 22 is slid to open the lid portion.

According to this transfer paper cartridge, since the front corner portion of the lid portion 22 is chamfered, the height of the highest portion of the opened lid portion 22 can be kept low as shown in FIG. Therefore, the thermal printer can be downsized also from this point.

Next, when the transfer paper cartridge reaches the specified position,
As shown in the figure, the loading arm 64 has its hook
At 65, the winding roll 32 is supported, and rotation starts clockwise.

Here, in the transfer paper cartridge of this embodiment, since the transfer paper T is slackened by the tongue piece 36 provided on the lid portion 22, the take-up roll 32 supported by the hook 65 is transferred to the transfer paper T. It will not be pulled out of this hook 65 and fall out.

Further, by the rotation of the loading arm 64, the locking protrusion 66a of the locking member 66 which interlocks with the loading arm 64 engages with the locking step portion 48 of the transfer paper cartridge to fix the transfer paper cartridge.

As described above, according to this transfer paper cartridge, since the position of the winding roll 32 is fixed in the pulled-out state,
It is possible to prevent the occurrence of an accident such as pulling out the transfer paper cartridge from the thermal printer while the take-up roll 32 is pulled out.

Then, as shown in FIG. 11, the loading arm is
When the loading by 64 is completed, the drive shaft 71 engages with both ends of the core 34 of the winding roll 32.

At the same time, the thermal head 61 rotates counterclockwise, and the supply roller 72 is pressed against the recording paper K in the transfer paper cartridge to feed the recording paper K one by one.

Here, since the recording paper K sent out does not come into direct contact with this bottom surface by the ribs 40 on the bottom surface of the transfer paper storage portion 21, it is possible to prevent the recording paper K from being damaged.

Then, when the platen roller 60 holding the recording paper K by the clamper 63 of the platen roller 60 rotates and reaches the printing position, the thermal head 61 transfers the transfer paper T and the recording paper K to each other as shown in FIG. It is pressed against the platen roller 60 through.

In this state, the platen roller 60 is rotated in the clockwise direction and the transfer paper T is wound by the drive shaft 71.

Then, when printing with each color is completed, the platen roller 60
Is rotated counterclockwise, and the recording paper K is ejected from the rear side through the ejection passage formed by the metal plates 85 and 86.

When the transfer paper cartridge is taken out from the thermal printer, the loading arm 64 rotates in the counterclockwise direction while the transfer paper T is being wound by the drive shaft 71 and the take-up roll 32 is moved to the transfer paper cartridge. Put it back in the storage part 21.

Then, in this way, the winding roll 32 is returned to the transfer paper storage portion 21 of the transfer paper cartridge, that is, the loading arm 64 is returned to the position shown in FIG. 7 and the locking member 66 is locked. With the protrusion 66a separated from the locking step portion 48 of the transfer paper cartridge, the transfer paper cartridge can be pulled out from the thermal printer by putting a finger on the grip portion 20c.

(Effect of the Invention) As is apparent from the above description, according to the present invention, the lid is provided with the tongue piece, and the tongue piece separates the winding roll and the supply roll in the transfer paper storage unit. Even if these rolls are released from the supporting state in the transfer paper storage unit, they are less likely to rattle, and it is possible to prevent these rolls from contacting each other.

Further, according to the present invention, by controlling careless rotation of each roll, it is possible to prevent the transfer paper from winding around the rolls.

Thus, according to the present invention, it is possible to more reliably and safely store the winding roll and the supply roll in the transfer paper storage unit.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a transfer paper cartridge according to the present invention, FIG. 2 is a sectional view of the same main part, FIG. 3 is a perspective view showing a state in which a lid is opened, and FIG. FIG. 5 is a perspective view showing a cutaway view of a main part, FIG. 5 is a perspective view of the same from the bottom, FIG. 6 is a perspective view showing another embodiment of the present invention, and FIG. 8 is a perspective view showing a structure of a thermal printer according to the present embodiment, FIG. 8 is a perspective view showing a structure of a detection device according to the present embodiment, and FIGS. 9 to 12 are transfer views according to the present invention to the thermal printer shown in FIG. FIG. 13 is a configuration diagram showing an operating state of the thermal printer when a paper cartridge is mounted, and FIG. 13 is a side sectional view showing a configuration of a conventional transfer paper cartridge. 20 cartridge body, 21 ... transfer paper storage, 22 ... lid, 23 ... recording paper storage, 26 ... hinge mechanism, 27, 28 ...
… Notches, 32 …… Winding roll, 33 …… Supply roll,
36 …… tongue, 37 …… opening, 40 …… rib.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshiaki Wakui 3-12 Moriya-cho, Kanagawa-ku, Yokohama-shi, Kanagawa Prefecture Victor Company of Japan, Kyoji Miyazaki

Claims (1)

[Scope of utility model registration request] 1. A transfer paper accommodating section for accommodating a pair of supply rolls and take-up rolls around which a transfer paper is wound so that the take-up rolls are located on the front side, and in the cartridge main body. A recording paper storage unit for storing recording paper is provided, and the transfer paper storage unit includes a fixing unit fixed to the cartridge body and a lid unit which is attached to the cartridge body by a hinge so as to be openable and closable. A transfer paper cartridge, wherein a tongue piece is provided inside the lid portion, the tongue piece being interposed between the supply roll and the winding roll when the lid portion is closed.