JPS60143338A - Image recorder - Google Patents

Abstract

PURPOSE:To make compact an image recorder which uses diffusion transfer type heat developing photosensitive materials by disposing a feed section for the photosensitive material and a heat treating section in proximity to each other and shutting off thermally between both. CONSTITUTION:A feed section 10 for photosensitive material and a heat treating section 11 are disposed in proximity to each other. The section 10 contains a cassette 12 contg. diffusion transfer type heat developing photosensitive materials (a) cut to a sheet shape in a heat insulating box 13. The materials (a) in the cassette 12 are maintained at a relatively low temp. so as not to be affected by the heat of the section 11. The space is effectively utilized by such constitution, by which the device is made compact.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is a method for developing a diffusion transfer type heat-developable photosensitive material and storing it in a cassette of a photosensitive material feeding section using heat from a heat treatment section that performs diffusion transfer to an image receiving paper. The present invention relates to an image recording apparatus in which the unexposed photosensitive material is not affected.

[Conventional technology]

Conventionally, when an image is produced by coloring the photosensitive material itself, such as a heat-developable photosensitive material used for dry silver, etc., there is a problem that the image may change color due to subsequent heat, resulting in poor image storage stability. there were. Recently, diffusion transfer type heat-developable materials (JP-A-57-179840, JP-A No. 57-179840, JP-A No. 57-179840, No. 57-198458 and Japanese Patent Application No. 58-104900 filed by the present applicant, etc.), and an image recording device using this sensitive material has been developed.

In an image recording apparatus using this conventional diffusion transfer type heat-developable sensitive material, as shown in FIG.
is sent to the exposure section 3 through the conveyance roller 2. The image receiving paper fed from the image receiving paper supply section 5 in the contact section 4 and fed by the m feed roller 6 is superimposed and adhered to the photosensitive material a exposed in the exposure section 3, and then transferred to the heat treatment section 7. send. In the heat processing section 7, the photosensitive material a is developed, and the image formed on the surface of the photosensitive material by the development is diffused and transferred onto the image receiving paper.

However, in the case of the image recording apparatus described above, the sensitive material feeding section 1 and the heat treatment section 7 are installed as far apart as possible in order to prevent the sensitive material a from being affected by the heat of the heat treatment section 7. was. Therefore, it has been difficult to make the entire device compact.

[Purpose of the invention]

This invention is intended to solve the above-mentioned problem, in which the unexposed photosensitive material in the photosensitive material supply section is affected by the heat of the heat treatment section, even though the photosensitive material feeding section and the heat processing section are arranged close to each other. It is an object of the present invention to provide an image recording device that does not have any problems and can be made more compact.

[Structure of the invention]

In an image recording apparatus equipped with a photosensitive material feeding section, an image receiving paper feeding section, an exposure section, and a heat processing section for development and transfer, the sensitive material paper feeding section and the heat processing section are arranged close to each other, and the heat treatment section is placed between them. The above object is achieved by arranging the structure so as to block the noise.

[Example] Next, the present invention will be explained based on the example shown in FIGS. 2 and 3.

In the figure, 10 is a sensitive material supply section, and 11 is a cough sensitive material supply section 1.
This is a heat treatment section for development and transfer that is installed close to 0.

The photosensitive material supply section 10 has a container 7) 1 containing a diffusion transfer type heat-developable photosensitive material (hereinafter referred to as photosensitive material) a that has been canted in the form of a sheet.
2 is enclosed in a heat insulating box 13, and the cassette 1
The temperature of the sensitive material a in the heat treatment section J1 can be maintained at a relatively low temperature so as not to be affected by the heat of the heat treatment section J1. The heat insulating box 11 is made of other heat insulating materials, such as a core made of a polystyrene foam board sandwiched between heat-resistant resin boards (acrylic boards) on both sides, or other heat insulating materials. It is provided with an opening/closing lid 13' that can be inserted and removed.

The photosensitive material a is pushed up by a push-up member 30 installed at the inner bottom of the cassette 12, and fed out one by one by a feeding roller 14, into a heat insulating box 1 which is open in the forward direction in the feeding direction.
3, and is supplied to an exposure section 16 along a guide member 15. Various types of exposure means can be considered as the exposure means for the exposure section 16, as shown in FIG. 3A. Even if a scanning cathode ray tube is equipped with a fiber array on the tube surface, as shown in Figure B, the tube surface is clear-faced and the light is focused using a lens, and the light is exposed at its focal plane. good.

A photosensitive material feed roller 17 provided opposite to the exposure means of the exposure section 16 is connected to a photosensor 18 provided on the front side of the exposure section 16.
Driving is started after the sensitive material a is sensed by the roller 17, and the feeding speed of the feed roller 17 is synchronized with the image output of the exposure means. When the exposure means is used, the exposure means advances the sensor 1fAa by 100 μm during one scan.

In the exposure section 16, the exposed photosensitive material a is sent out by a feed roller 17, and is sent along the guide member 19 to the heat treatment section 1.
1 is supplied to a close contact portion 2° constituted by upper and lower rollers 20' and 20'' arranged immediately before the roller 1.

Reference numeral 21 denotes an image receiving paper supplying section, and the image receiving paper supplying section 21 feeds out the image receiving paper canted into a sheet form from its storage capacity center 22 by a feeding roller 23.

It is used to feed the paper to the contact portion 20, and its feeding speed is increased in accordance with the speed at which the sensitive material is transported. The image receiving paper supply section 21 is a heat insulating box because the image receiving paper itself does not have photosensitivity.

There is no need to house it in a box.

In the initial state, the tip of the image receiving paper sheet is connected to the feeding roller 2.
3, and after the tip of the photosensitive material a is detected by the sensor 18, feeding is started with a certain time difference.
The timing at which the tip of the photosensitive material a reaches the contact area 2o may be controlled to be the same as or slightly delayed. If it is necessary to preheat the roller of the contact portion 20, a heating element (not shown) that generates heat by energization may be provided in the roller of the contact portion 20 to preheat the roller, or a separate preheating means may be provided before the contact portion 20. Alternatively, the contact portion 20 may be
When the contact surface of the photosensitive material a and the image receiving paper supplied to
Dust removal is being carried out.

After the photosensitive material a and the image-receiving paper are brought into close contact with each other by polymerization, they are conveyed to a heat treatment section 11.

The heat treatment section 11 has two shafts 24 consisting of heat rollers with built-in heaters.
A conveyor belt 25 (or one using a heat roller directly may be used) stretched between the two is arranged above and below. The exposed photosensitive material a and the image-receiving paper sheet pass through the conveyance path between the thermal conveyance belts 25 while being held together with a moderate adhesion force, and during this time, heat at a constant temperature (for example, 80 to 200° C.) is applied. It will be done. The passage time of this heat treatment section 11 is 2 due to the relationship with the heating temperature.
Adjusted within the range of seconds to 3 minutes.

As a result, the latent image formed on the photosensitive surface of the photosensitive material a is thermally developed and a silver image appears in the exposed area.5 A diffusive dye is formed accordingly and is diffusely transferred to the image receiving surface of the image receiving paper. Become.

Note that the above structure of the heat treatment section 11 does not need to be limited to this.

In addition, in this embodiment, of the sensitive material supply section 10 and the heat treatment section 11 which are arranged close to each other, the sensitive material supply section is covered with an lfi heat box, so that the sensitive material is not affected by the thermal influence of the heat treatment section 11. Although the heat treatment section 11 is configured so as not to be exposed to heat, the same effect can be expected even if the entire heat treatment section 11 is covered with a heat insulating box (not shown).

The photosensitive material a and the image receiving paper that have passed through the heat treatment section 11 are supplied to a peeling section (not shown), where i? ,l]! 1l
li and then sent to a post-processing process.

〔Effect of the invention〕

As described above, the present invention provides an image recording apparatus that includes a photosensitive material feeding section, an image receiving paper feeding section, an exposure section, and a heat processing section for development and transfer, in which the photosensitive paper feeding section and the heat processing section are arranged close to each other. At the same time, it is characterized by thermal isolation between the two.

Even if the photosensitive material feed section and the heat treatment section are placed close to each other, the unexposed photosensitive material will not be affected by the heat of the heat treatment section, that is, the exposure of the photosensitive material will progress, so the entire device can be made more compact. In addition, in this embodiment, the heat treatment section is placed above the photosensitive material feed section, which allows for extremely efficient use of space, and provides various advantages such as the paper feed section being unaffected by heat due to convection. It is effective.

[Brief explanation of drawings]

FIG. 1 is a schematic cross-sectional view showing a conventional image recording device;
The figure is a schematic sectional view showing an example of the image recording apparatus of the present invention, and FIGS. 3A and 3B are explanatory views showing the exposure means of the exposure section. a-Sensitive material b-Receiver paper 1〇-Sensitive material supply section 11-Heat treatment section 12--insulation posox 16-Exposure section 20-adhesive section 21-Receiver paper feed

Claims (2)

[Claims] (1) In an image recording apparatus equipped with a photosensitive material feeding section, an image receiving paper feeding section, an fs light section, and a heat treatment section for development and transfer,
An image recording apparatus characterized in that a photosensitive material feeding section and a heat processing section are arranged close to each other and thermally isolated from each other. (2) The image recording apparatus according to claim 1, wherein the photosensitive material feeding section is covered with a heat insulating box.