JPH06328742A - Laser recording device - Google Patents

Abstract

PURPOSE:To provide a laser recording device capable of removing foreign matter such as dust in a state that a device body is sealed. CONSTITUTION:In a device body 2, a sheet supply convey means 5 for supplying and conveying a thermal transfer ink sheet 3 and a thermal transfer image receive sheet 4 and a sheet holding means 7 for making a holding body 6 hold the thermal transfer ink sheet 3 and the thermal transfer image receive sheet 4 are provided. Further, an exposure means 8 for exposing the thermal transfer ink sheet 3 and the thermal transfer image receive sheet 4 held by the holding body 6 to modulated laser means, a peeling means 9 for peeling the thermal transfer ink sheet 3 and the thermal transfer image receive sheet 4 from the holding body 6 after the exposure, and a sheet peel convey means 10 for conveying the peeled thermal transfer ink sheet 3 and the thermal transfer image receive sheet 4 are provided. An adhesive sheet 13 is conveyed to a laser recording device 1 before the thermal transfer ink sheet 3 and/or the thermal transfer image receive sheet 4 are conveyed, so that foreign matter in the device body 2 can be attached to the adhesive sheet 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser recording apparatus capable of removing foreign matter for performing thermal transfer recording using a laser as a heat source.

[0002]

2. Description of the Related Art Conventionally, as a thermal transfer recording technique, a thermal transfer ink sheet and a thermal transfer image-receiving sheet having a heat-fusible color material layer or a color material layer containing a heat sublimable dye provided on a substrate are opposed to each other. A heat source controlled by an electric signal such as a head and a current-carrying head is pressure-bonded from the thermal transfer ink sheet side,
There is one in which an image is transferred and recorded on a thermal transfer image-receiving sheet.

Such thermal transfer recording has features such as noise-free, maintenance-free, low cost, easy colorization, and digital recording, and many printers, recorders, facsimiles, computer terminals, etc. It is used in the field.

On the other hand, in recent years, in the medical and printing fields, there has been a demand for a recording system having a high resolution, capable of high-speed recording, and capable of image processing, so-called digital recording. However, in the conventional thermal transfer recording using a thermal head or a current-carrying head as a heat source, it is difficult to increase the density of the heating elements due to the life of the head heating elements, and it is difficult to obtain a high-resolution image.

[0005]

In order to solve this problem, thermal transfer recording using a laser as a heat source is disclosed in JP-A-49-1.
No. 5437, No. 49-17743, No. 57-8739.
No. 9, No. 59-143659, and the like. As a laser recording device for thermal transfer recording using such a laser as a heat source, a sheet supplying / conveying means for supplying and conveying a thermal transfer ink sheet and a thermal transfer image receiving sheet, and a sheet holding means for sequentially holding the thermal transfer ink sheet and the thermal transfer image receiving sheet on a holder. An exposing means for exposing the thermal transfer ink sheet and the thermal transfer image receiving sheet held by the holding body to the modulated laser beam; a peeling means for peeling the thermal transfer ink sheet and the thermal transfer image receiving sheet from the holding body after the exposure; In some cases, the apparatus main body is provided with a sheet peeling / conveying unit that conveys the ink sheet and the thermal transfer image receiving sheet.

By the way, in such a laser recording apparatus, when recording with a laser, it is common to perform recording by scanning a minute spot, and the recording is mixed in a thermal transfer ink sheet or a thermal transfer image-receiving sheet or a conveyance path. The presence of foreign matter causes a transfer failure.

For this reason, it is possible to put the dust removing roller in the conveying path, but there is a problem that dust is mixed in at the time of maintenance. In the past, it was not possible to remove foreign matter in a state where the inside of the device body was sealed.

Further, it is conceivable that the device body is tightly sealed so that dusts and the like do not enter, but in this case, the cost is increased and it is technically difficult to be tightly sealed.

The present invention has been made in view of the above points, and an object of the present invention is to provide a laser recording apparatus capable of removing foreign matters such as dust while the inside of the apparatus main body is sealed.

[0010]

In order to solve the above-mentioned problems, the invention according to claim 1 is a sheet supply / conveying means for supplying / conveying a thermal transfer ink sheet and a thermal transfer image receiving sheet,
Sheet holding means for holding the thermal transfer ink sheet and the thermal transfer image receiving sheet on a holding body, exposing means for exposing the thermal transfer ink sheet and the thermal transfer image receiving sheet held by the holding body to a laser beam modulated, and the thermal transfer after the exposure. In a laser recording device equipped with a peeling means for peeling an ink sheet and a thermal transfer image-receiving sheet from the holding body, and a sheet peeling conveying means for conveying the peeled thermal transfer ink sheet and the thermal transfer image-receiving sheet, in a laser recording device The sheet is conveyed before the thermal transfer ink sheet and / or the thermal transfer image-receiving sheet is conveyed so that foreign matter in the apparatus main body can be attached to the adhesive sheet.

According to a second aspect of the present invention, a sheet feeding / conveying means for feeding and conveying the thermal transfer ink sheet and the thermal transfer image receiving sheet, a sheet holding means for holding the thermal transfer ink sheet and the thermal transfer image receiving sheet on a holding body, and the holding body. Exposure means for exposing the thermal transfer ink sheet and the thermal transfer image-receiving sheet that have been modulated by the modulated laser beam, peeling means for peeling the thermal transfer ink sheet and the thermal transfer image-receiving sheet from the holder after exposure, and the peeled thermal transfer ink In a laser recording apparatus equipped with a sheet peeling and conveying means for conveying a sheet and a thermal transfer image receiving sheet in the main body of the apparatus, the thermal transfer ink sheet and / or the thermal transfer image receiving sheet is a roll-shaped thermal transfer ink sheet or the tip of the thermal transfer image receiving sheet. This part has an adhesive sheet, Transfer ink conveying the sheet or the thermal transfer image-receiving sheet, the foreign matter of the apparatus main body is characterized in that the adherable to said adhesive sheet.

According to a third aspect of the present invention, there is provided a thermal transfer ink sheet or thermal transfer having a non-adhesive sheet having a length of at least one circumference of a maximum roll diameter between the thermal transfer ink sheet or thermal transfer image-receiving sheet and the adhesive sheet. Transport the image receiving sheet,
It is characterized in that foreign matter in the apparatus body can be attached to the adhesive sheet.

According to a fourth aspect of the present invention, a thermal transfer ink sheet or a thermal transfer image-receiving sheet having a non-adhesive sheet having a length equal to or more than one circumference of the maximum roll diameter on the outside of the adhesive sheet is conveyed to obtain the adhesive property. It is characterized in that a foreign matter in the apparatus body can be attached to the sheet.

The invention according to claim 5 is characterized in that the adhesive force of the adhesive sheet is 0.01 gf or more and 10 gf or less in JIS Z-0237-991, 90 degree peeling method.

The invention according to claim 6 is characterized in that the pressure-sensitive adhesive sheet has at least a cushioning intermediate layer and a pressure-sensitive adhesive layer on a support.

In the present invention, the adhesive sheet has an adhesive layer on at least the support. For the specific content of the adhesive of the adhesive layer, for example, the technique described in "Encyclopedia of Adhesion / Adhesion" published by Asakura Shoten Co., Ltd. can be used. Among these, rubber adhesives and acrylic adhesives are particularly preferably used. The Tg (glass transition temperature) of these adhesives is preferably −120 ° C. to 40 ° C.

Further, in order to convey the inside of the apparatus main body,
If the adhesive strength is too strong, it adheres to the transport roll or the guide plate and cannot be transported. On the other hand, if the adhesive strength is too weak, the effect of removing foreign matter becomes low. Therefore, the adhesive force of the adhesive sheet is 0.01 gf or more and 10 gf or more when the 90 degree peeling method is used according to JIS Z-0237-1991.
Hereafter, it is more preferably 0.02 gf or more and 2 gf or less (the width of the test piece is 25 mm).

Further, in order to suppress the tackiness and obtain the foreign matter removing effect, the construction of the tacky sheet can be achieved by forming a cushioning intermediate layer and a tacky layer on the support. As a specific cushioning intermediate material, the intermediate layer material described in Japanese Patent Application No. 5-1237 can be used. The material of the cushioning intermediate layer is 2
Elastic modulus of 100 g / cm ² or less at 0 ° C, or 20 ° C
It is preferable that the penetration degree is 15 or more and 300 or less under the condition of a load of 100 g and 5 seconds.

The adhesive force of the adhesive layer formed on the cushioning intermediate layer may be very low. Foreign matter can be captured by the adhesive sheet by penetrating the adhesive layer and intruding into the cushioning intermediate layer. The adhesive strength of the adhesive layer that can be placed in this configuration is preferably 2 gf or less.

The pressure-sensitive adhesive of the pressure-sensitive adhesive layer in this constitution does not have to be the so-called pressure-sensitive adhesive described in the above-mentioned "Encyclopedia of Adhesion and Adhesion", and a general polymer is used. For example, a styrene resin, an acrylic resin, a polycarbonate resin, an acetal resin, a vinyl chloride resin, a polyester resin, a polyvinyl alcohol resin, a cellulose resin, a copolymer of constituent monomers of these resins, or the like is used.

It is preferable that the Tg (glass transition temperature) of these polymers is about 0 ° C. to 300 ° C. and that they do not show tackiness, in order to obtain good transportability.

[0022]

According to the first aspect of the invention, the adhesive sheet is conveyed to the laser recording apparatus before the thermal transfer ink sheet and / or the thermal transfer image-receiving sheet is conveyed, and the foreign matter in the main body of the apparatus is adhered to the adhesive sheet. With the main body sealed,
Remove foreign matter such as dust.

According to the second aspect of the invention, the roll-shaped thermal transfer ink sheet or the thermal transfer image-receiving sheet is conveyed to the laser recording device, and the thermal transfer ink sheet and / or the thermal transfer image-receiving sheet is the roll-shaped thermal transfer ink sheet or the thermal transfer image-receiving sheet. The sheet has an adhesive sheet at the tip portion, and foreign matter in the device body is attached to the adhesive sheet, and foreign matter such as dust is removed in a state where the device body is sealed.

According to the third aspect of the present invention, the thermal transfer ink sheet or the thermal transfer image receiving sheet has a non-adhesive sheet having a length of at least one circumference of the maximum roll diameter between the thermal transfer ink sheet and the thermal transfer image receiving sheet. Only foreign substances can be attached without peeling off the ink layer of the thermal transfer ink sheet or the image receiving layer of the thermal transfer image receiving sheet.

In the invention according to claim 4, a thermal transfer ink sheet or a thermal transfer image-receiving sheet having a non-adhesive sheet having a length of at least one round of the maximum roll diameter on the outside of the adhesive sheet is conveyed to form an adhesive sheet. Remove foreign matter by adhering foreign matter inside the device body. Before the transfer of the thermal transfer ink sheet or the thermal transfer image receiving sheet, the adhesive sheet is protected by the non-adhesive sheet, so that the foreign matter in the apparatus main body can be more reliably adhered to and removed from the adhesive sheet.

According to the invention of claim 5, the adhesive strength of the adhesive sheet is 0.01 gf or more and 10 gf or less in accordance with JIS Z-0237-1991, 90 degree peeling method, so that the thermal transfer ink sheet or the thermal transfer image receiving sheet can be smoothly processed. Only the foreign matter can be attached without peeling off the ink layer of the thermal transfer ink sheet or the image receiving layer of the thermal transfer image receiving sheet.

In the invention according to claim 6, the pressure-sensitive adhesive sheet has at least a cushioning intermediate layer and a pressure-sensitive adhesive layer on a support, and the pressure-sensitive adhesive layer formed on the cushioning intermediate layer is thereby formed. The adhesion can be very low,
Foreign matter is caught in the adhesive sheet by penetrating through the adhesive layer and intruding into the cushioning intermediate layer.

[0028]

Embodiments of the laser recording apparatus of the present invention will be described below with reference to the drawings. 1 to 7 show an embodiment of a laser recording apparatus, FIG. 1 is a schematic configuration diagram of the laser recording apparatus, FIG. 2 is a perspective view of a holder, FIG. 3 is a sectional view of the holder, and FIG. 4 is a holder. FIG. 5 is a cross-sectional view of another embodiment, FIG. 5 is a layer configuration diagram of a thermal transfer ink sheet, FIG. 6 is a layer configuration diagram of a thermal transfer image-receiving sheet, and FIG. 7 is a layer configuration diagram of an adhesive sheet.

The laser recording apparatus 1 includes a thermal transfer ink sheet 3 and a thermal transfer image receiving sheet 4 in an apparatus main body 2.
A sheet feeding / conveying means 5 for feeding and conveying the sheet, a sheet holding means 7 for holding the thermal transfer ink sheet 3 and the thermal transfer image receiving sheet 4 on a holding body 6, and a thermal transfer ink sheet 3 and a thermal transfer image receiving sheet 4 held on the holding body 6. Exposure means 8 for exposing the modulated laser beam, peeling means 9 for peeling the thermal transfer ink sheet 3 and the thermal transfer image receiving sheet 4 from the holder 6 after the exposure, and conveying the peeled thermal transfer ink sheet 3 and the thermal transfer image receiving sheet 4. Sheet peeling and conveying means 1
It has 0 and.

The sheet supply / conveyance means 5 is adapted to supply and convey the thermal transfer ink sheet 3 and the thermal transfer image receiving sheet 4, and this thermal transfer ink sheet 3 is, for example, as shown in FIG. Backcoat layer 31
Are laminated, and the cushion layer 32 and the photothermal conversion layer 33 are provided on the other side.
And the ink layer 34 are laminated. The ink layer 34 of the thermal transfer ink sheet 3 can be a yellow ink layer, a magenta ink layer, a cyan ink layer, and a black ink layer, and by forming a yellow ink layer, a yellow thermal transfer ink sheet 35 and a magenta ink layer. As a result, the magenta thermal transfer ink sheet 36, the cyan thermal transfer ink sheet 37 and the black thermal transfer ink sheet 38 are formed. In addition, the thermal transfer image receiving sheet 4
For example, as shown in FIG. 6, the back coat layer 41 is laminated on one side of the support 40, and the cushion layer 42 is formed on the other side.
And the image receiving layer 43 are laminated.

The sheet feeding / conveying means 5 includes a magazine 5
0, 51, 52 and transport rollers 53, 54, 55, 5
6, 57 etc. are provided. In this magazine 50,
A yellow thermal transfer ink sheet 35 and a magenta thermal transfer ink sheet 36, which are respectively wound in a roll shape, are set. The yellow thermal transfer ink sheet 35 is transported from the magazine 50 to the holder 6 by the transport roller 53, and the magenta thermal transfer ink sheet 36 is transported from the magazine 50 to the holder 6 by the transport roller 54. A cyan heat transfer ink sheet 37 and a black heat transfer ink sheet 38, which are wound in a roll shape, are set in the magazine 51, and the cyan heat transfer ink sheet 37 is conveyed from the magazine 51 toward the holding body 6 by the conveyance roller 55. The black thermal transfer ink sheet 38 is conveyed from the magazine 51 toward the holder 6 by the conveying roller 56. The thermal transfer image receiving sheet 4 wound in a roll is set in the magazine 52, and the thermal transfer image receiving sheet 4 is conveyed from the magazine 52 by the conveying roller 57 toward the holding body 6.

The sheet holding means 7 is the thermal transfer ink sheet 3
Also, the thermal transfer image receiving sheet 4 is held on the holding body 6. The holding body 6 is composed of a drum 60, and a pressure roll 70 is arranged facing the drum 60.

The drum 60 is constructed, for example, as shown in FIGS. 2 and 3, and an intake hole 61 is provided on the entire circumference of the drum 60.
Are formed at predetermined intervals, and the decompression chamber 62 is further provided inside.
Are formed. The width L1 of the drum 60 is the widths L2 and L3 of the thermal transfer ink sheet 3 and the thermal transfer image receiving sheet 4.
It is wider and the width L of the thermal transfer ink sheet 3 is
2 is wider than the width L3 of the thermal transfer image receiving sheet 4.
The intake holes 61 of the drum 60 are formed in the widths L2 and L3 of the thermal transfer ink sheet 3 and the thermal transfer image receiving sheet 4, and the intake holes 61 at both ends are opened and closed by the valve body 63. The valve body 63 is driven by the valve opening / closing means 64.

The decompression chamber 62 is connected to a decompression pump 66 via a pipe 65, and the decompression chamber 62 is depressurized by driving the decompression pump 66. By decompressing the decompression chamber 62, the thermal transfer ink sheet 3 and the thermal transfer image receiving sheet 4 are adsorbed to the drum 60 by the intake holes 61.

The decompression pump 66 is controlled by the control means 67. When the thermal transfer image receiving sheet 4 is wound around the drum 60, the control means 67 controls the valve opening / closing means 64 to close the valve body 63. As a result, the air intake holes 61 at both ends of the drum 60 are closed, so that the thermal transfer image receiving sheet 4 is adsorbed to a predetermined position of the drum 60. When the thermal transfer ink sheet 3 is superposed on the thermal transfer image receiving sheet 4 and wound around the drum 60, the control means 67 controls the valve opening / closing means 64 to open the valve body 63. As a result, the air intake holes 61 at both ends of the drum 60 are opened, so that both ends of the thermal transfer ink sheet 3 are adsorbed to the predetermined positions of the drum 60.

The holder 6 is not limited to such a drum 60, but can be constituted by a box 68 shown in FIG. 4, for example. In FIG. 4, the air intake hole 61 is formed in the plane portion of the box 68, and the decompression chamber 62 is formed inside.
Since it has the same structure as the drum 60 shown in FIG.

As described above, the holder 6 may be the drum 60 or the box 68, but when high precision recording is required, the box 68 is used.
Cylinder scanning using the holder 6 of the drum 60 can be expected to improve the accuracy of the optical system, as compared with planar scanning by the holder 6 and the polygon mirror or the galvanometer mirror.

The exposure means 8 exposes the modulated laser beam to the thermal transfer ink sheet 3 and the thermal transfer image receiving sheet 4 held by the holder 6. The light source for heat mode recording of the exposing means 8 is preferably capable of emitting light having a wavelength that is easily condensed by an optical system, has a large output energy, and is easily converted into heat. Examples of such a light source include a semiconductor laser, an LED, a helium neon laser, a YAG laser, and a carbon dioxide gas laser. Among these, as a light source that is easy to use as an array composed of a plurality of light emitting elements, a semiconductor laser, LE
Examples include D.

The light emitting element is preferably one capable of emitting light having a wavelength capable of efficiently converting exposure energy into heat energy, and a preferable emission wavelength is, for example, 60.
It is 0 to 2000 nm. In such heat mode recording, energy loss due to heat conduction from the ink layer of the thermal transfer ink sheet 3 to the support side is reduced by shortening the exposure time. Using a thermal head,
In heat mode recording, thermal energy is directly applied to the ink layer or the photothermal conversion layer in the vicinity of the ink layer, as compared with normal thermal transfer recording in which the ink layer is heated by heat conduction from the support side.

Therefore, it is preferable that the exposure is performed with high illuminance and in a short time as much as possible. The preferable exposure speed is a linear velocity of 0.5 m / sec or more, more preferably 3 m / sec or more. Also, the preferable exposure power density is 50 W / m.
m ² or more, more preferably 300 W / mm ² or more.

The time required for the applied heat to cool after heating depends on the amount of applied heat, the heat capacities of the thermal transfer ink sheet 3 and the thermal transfer image receiving sheet 4, and the like. The time difference from the exposure of a line to the exposure of the next adjacent line is preferably as short as possible, and when performing the exposure while rotating the drum, it is preferable that the drum diameter is small.

The peeling means 9 is composed of a peeling roller 90, and peels the thermal transfer ink sheet 3 and the thermal transfer image receiving sheet 4 from the holder 6 after exposure by the peeling roller 90.

The sheet peeling / conveying means 10 is constituted by the conveying roller 1.
The thermal transfer ink sheet 3 and the thermal transfer image receiving sheet 4 which are separated by the transport roller 100 are transported and discharged to the discharge unit 11.

The laser recording apparatus 1 is provided with a magazine 12 below the sheet feeding / conveying means 5. An adhesive sheet 13 wound in a roll is set in the magazine 12. This adhesive sheet 13
Is carried by the carrier rollers 14 from inside the magazine 12.
Is conveyed in the direction.

The adhesive sheet 13 is formed, for example, by laminating adhesive layers 131 and 132 on both sides of a support 130 as shown in FIG. 7, and the adhesiveness of the adhesive layers 131 and 132 is determined by a conveyance roller or the like. It is formed so that it can be conveyed and foreign matter such as dust located on this conveying path can adhere to it. The adhesive sheet 13 is formed of a member having a weak adhesive property such as rubber or resin.

The adhesive sheet 13 is conveyed before the thermal transfer ink sheet 3 and / or the thermal transfer image-receiving sheet 4 is conveyed, and is taken out to the discharge section 11. When the adhesive sheet 13 is conveyed, foreign matter such as dust in the conveyance path in the apparatus body 1 adheres to the adhesive sheet 13, and the foreign matter such as dust can be removed while the apparatus body 2 is sealed. it can. The adhesive sheet 13 may have an adhesive layer formed on only one of the supports 130.

FIG. 8 is a schematic diagram showing another embodiment of the laser recording apparatus. In this embodiment, the members denoted by the same reference numerals as those in the embodiments of FIGS. 1 to 7 have the same structure, and thus detailed description thereof will be omitted.

In this laser recording apparatus 1, a rotary magazine 15 is arranged in the main body 2 of the apparatus. The yellow thermal transfer ink sheet 35, the magenta thermal transfer ink sheet 36, the cyan thermal transfer ink sheet 37, and the black thermal transfer ink sheet 38 are set in the rotary magazine 15, and the thermal transfer ink sheet 3 is sequentially conveyed by the rotation of the rotary magazine 15. Is conveyed in the direction of the holding body 6 via.

A sheet supply / conveyance means 5 is constituted by the rotary magazine 15 and the conveying rollers 16 and the like, and the rotary magazine 15 has the adhesive sheet 1 wound in a roll shape.
3 is set. The adhesive sheet 13 is conveyed from the rotary magazine 15 by the conveying roller 16 toward the holder 6. By transporting the adhesive sheet 13 in this manner, foreign matter such as dust in the transport path in the apparatus body 2 adheres to the adhesive sheet 13, and the foreign matter such as dust is sealed inside the apparatus body 2. Can be removed.

9 and 10 are perspective views of another embodiment of the adhesive sheet. In the embodiment of FIG. 9, the thermal transfer ink sheet 3 is the roll-shaped thermal transfer ink sheet 3 at the front end portion 3.
a has an adhesive sheet 13, and the roll-shaped thermal transfer ink sheet 3 is conveyed so that foreign matter in the apparatus main body 2 can be attached to the adhesive sheet 13. Further, in the embodiment of FIG. 10, the thermal transfer image receiving sheet 4 has a roll-shaped thermal transfer image receiving sheet 4 having an adhesive sheet 13 at the front end portion 4a thereof.
The foreign material in the transport path in the apparatus main body 2 can be attached to the adhesive sheet 13.

11 and 12 are perspective views of another embodiment of the adhesive sheet. In the embodiment of FIG. 11, the thermal transfer ink sheet 3 has a non-adhesive sheet 17 having a length D1 which is equal to or more than one round of the maximum roll diameter between the thermal transfer ink sheet 3 and the adhesive sheet 13. The thermal transfer ink sheet 3 is conveyed, and foreign matter in the apparatus main body 2 can be attached to the adhesive sheet 13 of the thermal transfer ink sheet 3. Also, in the embodiment of FIG.
The thermal transfer image receiving sheet 4 and the adhesive sheet 13 have a non-adhesive sheet 17 having a length D2 which is equal to or more than one round of the maximum roll diameter.
have. The thermal transfer image receiving sheet 4 is conveyed, and foreign matter in the apparatus main body 2 can be attached to the adhesive sheet 13 of the thermal transfer image receiving sheet 4.

Since the thermal transfer ink sheet 3 or the thermal transfer image-receiving sheet 4 has the non-adhesive sheet 17 having a length of at least one round of the maximum roll diameter between the adhesive sheet 13 and the adhesive sheet 13.
Only foreign substances can be removed without peeling off the ink layer of the thermal transfer ink sheet 3 or the image receiving layer of the thermal transfer image receiving sheet 4.

13 and 14 are perspective views showing still another embodiment of the adhesive sheet. In the embodiment of FIG. 13, the thermal transfer ink sheet 3 has a non-adhesive sheet 18 outside the adhesive sheet 13 and having a length of at least one circumference of the maximum roll diameter. This thermal transfer ink sheet 3 is applied to the non-adhesive sheet 1
The foreign material in the apparatus main body 2 is more surely attached to the adhesive sheet 13 after being conveyed from No. 8. The thermal transfer image-receiving sheet can also be configured in the same manner as the thermal transfer ink sheet 3 so that foreign matter in the apparatus main body can be attached to the adhesive sheet.

In the embodiment of FIG. 14, the thermal transfer ink sheet 3 has a non-adhesive sheet 17 having a length D1 which is equal to or more than one circumference of the maximum roll diameter between the adhesive sheet 13 and the adhesive sheet 13. The non-adhesive sheet 18 having a length equal to or more than one round of the maximum roll diameter is provided on the outer side of the. The thermal transfer ink sheet 3 is conveyed from the non-adhesive sheet 18 so that the foreign matter in the apparatus main body 2 is surely attached to the adhesive sheet 13. The thermal transfer image-receiving sheet can also be configured in the same manner as the thermal transfer ink sheet 3 so that foreign matter in the apparatus main body can be attached to the adhesive sheet.

FIGS. 15 and 16 are layer construction diagrams of another embodiment of the adhesive sheet. In the embodiment of FIG. 15, the adhesive sheet 13 is provided on the support 130, and the cushioning intermediate layer 13 is provided.
3 and the adhesive layer 134. In the embodiment of FIG. 16,
The adhesive sheet 13 has cushioning intermediate layers 135 and 136 on both sides of the support 130, and further has adhesive layers 137 and 138 on the cushioning intermediate layers 135 and 136. As described above, the pressure-sensitive adhesive sheet 3 has at least the cushioning intermediate layer and the pressure-sensitive adhesive layer on the support 130, and thus the adhesive force of the pressure-sensitive adhesive layer formed on the cushioning intermediate layer is very high. It can be as low as possible, and foreign matter is caught on the adhesive sheet 3 by penetrating the adhesive layer and penetrating into the cushioning intermediate layer.

[0056]

As described above, according to the first aspect of the invention, the adhesive sheet is conveyed to the laser recording apparatus before the heat transfer ink sheet and / or the heat transfer image receiving sheet is conveyed,
Since the foreign matter in the main body of the apparatus is attached to the adhesive sheet, the foreign matter such as dust can be removed while the inside of the main body of the apparatus is sealed.

According to a second aspect of the invention, a roll-shaped thermal transfer ink sheet or a thermal transfer image-receiving sheet is conveyed to a laser recording device, and the thermal transfer ink sheet and / or the thermal transfer image-receiving sheet is a roll-shaped thermal transfer ink sheet or a thermal transfer image-receiving sheet. Since the sheet has an adhesive sheet at its tip, foreign matter in the apparatus body adheres to the adhesive sheet, so that foreign matter such as dust can be removed while the apparatus body is sealed.

According to the third aspect of the invention, the thermal transfer ink sheet or the thermal transfer image-receiving sheet has a non-adhesive sheet having a length of at least one circumference of the maximum roll diameter between the thermal transfer ink sheet and the thermal transfer image receiving sheet. Only foreign substances can be adsorbed without peeling off the ink layer of the thermal transfer ink sheet or the image receiving layer of the thermal transfer image receiving sheet.

According to a fourth aspect of the present invention, a thermal transfer ink sheet or a thermal transfer image-receiving sheet having a non-adhesive sheet having a length equal to or more than one circumference of the maximum roll diameter is conveyed outside the adhesive sheet, and the adhesive sheet is transferred to the adhesive sheet. Although the foreign matter in the apparatus main body is adhered and removed, the adhesive sheet is protected by the non-adhesive sheet before the thermal transfer ink sheet or the thermal transfer image receiving sheet is conveyed. Foreign matter can be attached and removed.

According to the invention of claim 5, the adhesive strength of the pressure-sensitive adhesive sheet is 0.01 gf or more and 10 gf or less in the JIS Z-0237-991, 90 degree peeling method. Therefore, the heat transfer ink sheet or the heat transfer image receiving sheet can be smoothly processed. Therefore, it is possible to attach the foreign matter alone without peeling off the ink layer of the thermal transfer ink sheet or the image receiving layer of the thermal transfer image receiving sheet.

According to the sixth aspect of the invention, the pressure-sensitive adhesive sheet has at least a cushioning intermediate layer and a pressure-sensitive adhesive layer on the support, so that the pressure-sensitive adhesive layer is formed on the cushioning intermediate layer. The force can be very low, and foreign matter can be caught on the adhesive sheet by sticking through the adhesive layer and slipping into the cushioning intermediate layer.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a laser recording device.

FIG. 2 is a perspective view of a holding body.

FIG. 3 is a cross-sectional view of a holder.

FIG. 4 is a sectional view of another embodiment of the holding body.

FIG. 5 is a layer configuration diagram of a thermal transfer ink sheet.

FIG. 6 is a layer configuration diagram of a thermal transfer image receiving sheet.

FIG. 7 is a layer configuration diagram of an adhesive sheet.

FIG. 8 is a schematic configuration diagram showing another embodiment of the laser recording apparatus.

FIG. 9 is a perspective view of another embodiment of the adhesive sheet.

FIG. 10 is a perspective view of another embodiment of the adhesive sheet.

FIG. 11 is a perspective view of another embodiment of the adhesive sheet.

FIG. 12 is a perspective view of another embodiment of the adhesive sheet.

FIG. 13 is a perspective view of still another embodiment of the adhesive sheet.

FIG. 14 is a perspective view of still another embodiment of the adhesive sheet.

FIG. 15 is a layer configuration diagram of another example of the adhesive sheet.

FIG. 16 is a layer configuration diagram of another example of the adhesive sheet.

[Explanation of symbols]

 1 Laser Recording Device 2 Device Main Body 3 Thermal Transfer Ink Sheet 4 Thermal Transfer Image Receiving Sheet 5 Sheet Supply Conveying Means 6 Holder 7 Sheet Holding Means 8 Exposure Means 9 Sheet Removing Means 10 Sheet Removing Conveying Means 13 Adhesive Sheets

Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI Technical display location B41M 5/26 H04N 1/23 103 A 9186-5C B41J 29/00 J 8305-2H B41M 5/26 V (72 ) Inventor Koichi Nakatani, Sakura-cho, Hino-shi, Tokyo Konica stock company (72) Inventor Ai Katsuta 1 Sakura-cho, Hino-shi, Tokyo Konica stock company (72) Inventor Sota Kawakami Sakura-cho, Hino-shi, Tokyo No. 1 Konica Stock Company

Claims (6)

[Claims] 1. A sheet supplying / conveying means for supplying and conveying a thermal transfer ink sheet and a thermal transfer image receiving sheet, a sheet holding means for holding the thermal transfer ink sheet and the thermal transfer image receiving sheet on a holding body, and a thermal transfer ink held on the holding body. An exposing means for exposing the sheet and the thermal transfer image-receiving sheet to a modulated laser beam; a peeling means for peeling the thermal transfer ink sheet and the thermal transfer image-receiving sheet from the holder after the exposure; and the peeled thermal transfer ink sheet and the thermal transfer image-receiving sheet. In a laser recording apparatus provided with a sheet peeling / conveying means for conveying the inside of an apparatus main body, an adhesive sheet is conveyed before the thermal transfer ink sheet and / or the thermal transfer image receiving sheet is conveyed, and foreign matter in the apparatus main body is adhered to the above-mentioned adhesive sheet. A laser recording device characterized in that it can be attached to a flexible sheet. 2. A sheet supplying / conveying means for supplying and conveying a thermal transfer ink sheet and a thermal transfer image receiving sheet, a sheet holding means for holding the thermal transfer ink sheet and the thermal transfer image receiving sheet on a holding body, and a thermal transfer ink held on the holding body. An exposing means for exposing the sheet and the thermal transfer image-receiving sheet to a modulated laser beam; a peeling means for peeling the thermal transfer ink sheet and the thermal transfer image-receiving sheet from the holder after the exposure; and the peeled thermal transfer ink sheet and the thermal transfer image-receiving sheet. In a laser recording device equipped with a sheet peeling and conveying means for conveying, in the main body of the apparatus, the thermal transfer ink sheet and / or the thermal transfer image receiving sheet has a roll-like thermal transfer ink sheet or an adhesive sheet at the tip of the thermal transfer image receiving sheet. This roll-shaped thermal transfer ink sheet or A laser recording apparatus, wherein a thermal transfer image receiving sheet is conveyed so that foreign matter in the apparatus main body can be attached to the adhesive sheet. 3. A thermal transfer ink sheet or a thermal transfer image receiving sheet having a non-adhesive sheet having a length of at least one circumference of a maximum roll diameter between the thermal transfer ink sheet or the thermal transfer image receiving sheet and the adhesive sheet is conveyed. The laser recording apparatus according to claim 2, wherein foreign matter in the apparatus main body can be attached to the adhesive sheet. 4. A thermal transfer ink sheet or a thermal transfer image-receiving sheet having a non-adhesive sheet having a length equal to or more than one round of a maximum roll diameter is conveyed to the outside of the adhesive sheet, and the adhesive sheet is provided inside the apparatus main body. The laser recording apparatus according to claim 2 or 3, wherein the foreign matter of (3) can be attached. 5. The adhesive strength of the adhesive sheet according to JIS Z-0237-1991, 90 degree peeling method,
The laser recording device according to any one of claims 1 to 4, wherein the laser recording amount is 0.01 gf or more and 10 gf or less. 6. The laser recording apparatus according to claim 1, wherein the pressure-sensitive adhesive sheet has at least a cushioning intermediate layer and a pressure-sensitive adhesive layer on a support.