JPH028286Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a thermal development transfer device, and more particularly to an arrangement structure of an image-receiving paper drying section for drying an image-receiving paper after thermal transfer.

[Conventional technology]

As a reproduction method for color hard copies, JP-A-Sho
A thermal development transfer method shown in No. 59-75247 is known.

In a heat development transfer device employing the above method, a heat development photosensitive material (hereinafter referred to as "sensitized material") on which an image has been exposed and then heat developed and an image receiving paper coated with water are separated into a heat transfer section. The images on the photosensitive material are thermally transferred to the image receiving paper.

[Problem that the invention attempts to solve]

By the way, the image-receiving paper immediately after the thermal transfer is completed is not completely dry and is in a wet state. Therefore, the image receiving paper on which thermal transfer has been completed is further taken out from the thermal development transfer device after passing through a drying factory.

The drying process can also be done by natural drying, but
There is a problem in that the processing speed of the thermal development transfer device is significantly slowed down. Alternatively, forced drying can be performed using a hot air dryer or the like, but in this case, there is a problem in that running costs such as equipment costs and electricity costs increase.

The present invention takes the above-mentioned facts into consideration and aims to provide a thermal development transfer device having a structure that allows for forced drying of image receiving paper without providing a separate dryer.

[Means for solving problems]

The thermal development transfer device according to the present invention has a structure in which an image receiving paper drying section is disposed above the thermal transfer section and communicates with the thermal transfer section.

[Effect]

In the thermal development transfer device configured as described above, convection occurs in the thermal transfer section, and hot air from the thermal transfer section enters the receiving paper drying section.

The water application according to the present invention is not limited to the image receiving paper, but may also be applied to the heat-developable photosensitive material.

〔Example〕

FIG. 1 shows an embodiment of a thermal transfer section and a receiving paper drying section of a thermal development transfer device according to the present invention.
FIG. 2 shows the general layout of the thermal development transfer device.

The exposure section 10 shown in FIG.
In the part where an image is exposed on the photosensitive material 14 supplied from 2, a means such as scanning by emitting light from three types of LEDs is adopted for exposure. In the photosensitive material supply section 12, a long photosensitive material 14 is wound around a spool 16 and arranged in the form of a roll. The thermal development section 18 is a section that applies heat to the photosensitive material 14 on which an image has been exposed in the exposure section 10 to develop the photosensitive material. For thermal development, a heating means such as a hot plate is used to tightly sandwich the sensitive material.

The water application section 20 is a section that applies water to the image receiving paper 24 supplied from the image receiving paper supply section 22 to wet the image receiving paper. Sheets of image-receiving paper 24 are stored in the image-receiving paper supply section 22 in a stacked manner. The thermal transfer section 26 transfers the photosensitive material 14 that has been thermally developed in the thermal development section 18.
and an image-receiving paper 24 moistened by the water application section 20.
The image on the photosensitive material 14 is transferred to the receiving paper 24.
This is the part to be transferred to. The image-receiving paper drying section 28 is a part that dries the image-receiving paper 24 after thermal transfer.
The electric device section 30 is provided with a drive device for driving rollers for conveying the photosensitive material 14 and the image receiving paper 24, a control device for these, a temperature control device for the thermal development section and the thermal transfer section, and the like.

The thermal transfer section 26 and the image receiving paper drying section 28 are constructed as shown in FIG. 1 in detail. Conveying rollers 32, 34, and 36 are disposed in the thermal transfer section 26 from the input side to the output side of the photosensitive material 14 and the image receiving paper 24, and are driven and rotated in synchronization in the direction of the arrow. . Guide plates 38 and 4 are provided between the conveyance roller 32 and the conveyance roller 34 and between the conveyance roller 34 and the conveyance roller 36.
0 is placed. transport rollers 32 and 34,
The guide plates 38 and 40 include heating plates 42,...42.
and 44, . . . 44 are arranged.

The image receiving paper drying section 28 is located above the thermal transfer section 26 with a partition plate 46 interposed therebetween. The image receiving paper drying section 28 is connected to the top plate 48 of the housing housing the thermal development transfer device.
It is located at the top of the recess formed in the. The top plate 48 of this section is provided with a number of slit-shaped openings 50 that communicate the image-receiving paper drying section 28 and the thermal transfer section 26, and an opening 52 that serves as an entrance for the image-receiving paper 24.
The partition plate 46 has a large number of openings 54 in the form of slits or round holes.

Next, the operation of this embodiment will be explained. In the thermal development transfer device configured as described above, the sensitive material supply section 12
The photosensitive material 14 supplied from the photosensitive material 14 is exposed to an image in the exposure section 10, is then developed by heating in the thermal development section 18, and is conveyed to the thermal transfer section 26. On the other hand, the image-receiving paper 24 supplied from the image-receiving paper supply section 22 is coated with water by the water coating section 20 and is conveyed to the thermal transfer section 26 .

In the thermal transfer section 26, the conveyance rollers 32 and 34 and the guide plates 38 and 40 are connected to the heating plates 42 and 4, respectively.
4 and generates heat. As a result, the atmosphere in the thermal transfer section 26 is at a relatively high temperature, and hot air enters the receiving paper drying section 28 through the opening 54 of the partition plate 46 and the opening 50 of the top plate 48 due to convection. The conveyance rollers 32, 34, and 36 are driven and rotated in synchronization, and the photosensitive material 14 and the image receiving paper 24, which have been superimposed on each other in the thermal transfer section 26, are nipped and fed by these conveyance rollers and guided by guide plates 38 and 40. It is transported from the right side to the left side in Figure 1.

During this conveyance process, the photosensitive material 14 and the image receiving paper 24 are heated by the conveying rollers 32 and 34 and the guide plates 38 and 40, and the image on the photosensitive material 14 is thermally transferred to the image receiving paper 24. Thereafter, the photosensitive material 14 and the image receiving paper 24 are separated by a peeling means (not shown), and the photosensitive material 14 is disposed of in a dust box (not shown) provided outside the thermal development transfer device. On the other hand, the receiving paper 24
is reversely fed to the upper side of the thermal transfer section 26 by a conveying means (not shown), reaches the receiving paper drying section 28 through the opening 52 of the top plate 48, and is placed on the top plate 48 as shown by the chain line in FIG. Ru. In this state, the image receiving paper 24 is not completely dried.

As described above, the image receiving paper drying section 28 includes a thermal transfer section 26.
Hot air is entering the image receiving paper 2 located above the opening 50 of the top plate 48 which is the outlet for this hot air.
4 is dried by this hot air. When the image-receiving paper 24 is dry, the image-receiving paper is manually taken out by the operator of the thermal development transfer device, and this image-receiving paper is obtained as a color hard copy.

As described above, in this embodiment, the top plate 4 of the casing housing the thermal development transfer device located directly above the thermal transfer section 26 is
A recessed portion is formed in 8 to constitute an image-receiving paper drying section 28,
An opening 50 is formed in the top plate 48 of this section to communicate the image receiving paper drying section 28 and the thermal transfer section 26. Therefore, the image-receiving paper 24 can be forcibly dried without installing a separate dryer, making effective use of waste heat, and the heat in the thermal transfer section 26 is dissipated to the outside, so the atmosphere in the thermal transfer section 26 is This also prevents the temperature from becoming higher than necessary.

Further, since a partition plate 46 is disposed between the thermal transfer section 26 and the image receiving paper drying section 28, the thermal transfer section 26
The intrusion of harmful dust is also substantially prevented.

Although the above embodiment shows an example in which the image receiving paper drying section is disposed directly above the thermal transfer device, it is sufficient that the image receiving paper drying section is disposed above the thermal transfer section. You can contact us by etc.

Further, the present invention can be applied to a heat development transfer device in which an exposed heat development photosensitive material and an image receiving material are polymerized to simultaneously perform heat development and transfer.

[Effect of idea]

As explained above, in the thermal development transfer device according to the present invention, the image receiving paper drying section is disposed above the thermal transfer section and communicates with the thermal transfer section, so that the hot air from the thermal transfer section enters into the image receiving paper drying section. Therefore, it is possible to forcefully dry the image receiving paper without installing a separate dryer.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional explanatory diagram showing an embodiment of the thermal transfer section and the receiving paper drying section of the thermal development transfer device according to the present invention, and is a partially detailed view of FIG. 2. FIG. FIG. 10... Exposure section, 14... Photosensitive material, 18... Heat development section, 20... Water coating section, 22... Paper feeding section, 24
... Image receiving paper, 26... Thermal transfer section, 28... Image receiving paper drying section.

Claims (1)

[Scope of utility model registration request] In a thermal development transfer device that obtains an image on a receiving paper by thermally transferring an image recorded on a photothermographic material to an image receiving paper in the presence of water, a thermal transfer unit is provided above the thermal transfer unit where the thermal transfer is performed and communicates with the thermal transfer unit. A thermal development transfer device characterized by being provided with an image receiving paper drying section.