JPS6324259A - Picture recorder - Google Patents

Abstract

PURPOSE:To attain uniform application of an image forming solvent such as water to a necessary part by bending a photosensitive material or an image receiving material by a press roller to be moved in a direction abutting upon an endless belt to contact the material with the endless belt and executing the application while carrying the material. CONSTITUTION:When arrival of the leading end part of an image exposed to the photosensitive material 16 at a water application part is sensed by a sensor 66, the press roller 62 is guided by a long hole 12A and moved in the endless belt 56 direction (arrow C direction) against energizing force to bend the material 16. The bent material 16 is by-passed from a normal carrying track and held between the press roller 62 and the belt 56 and the belt 56 starts to rotate by the driving force of a motor 64 simultaneously with the detection of the material 16 by the sensor 66. Consequently, water 68 can be infiltrated from a tank 72 into a water absorbing part 70 and applied to the exposure surface of the material 16.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to an image recording method for obtaining an image on an image-receiving material by transferring an image recorded on a heat-developable photosensitive material to the image-receiving material in the presence of an image-forming solvent. It relates to a recording device.

[Prior Art and Problems to be Solved by the Invention] As an image recording device for obtaining a color image using a heat-developable photosensitive material, as shown in JP-A-59-75247, an image recording device that exposes an image to a heat-developable photosensitive material is used. There is a known method in which the image receiving paper is then sent to a heat developing section, and the image is transferred to the image receiving paper through a transfer process in which the image receiving paper is applied to the photosensitive material after heat development.

Before being sent to the transfer section, this image-receiving paper is applied with a transfer aid (image-forming solvent) such as water in order to improve transfer efficiency.

For this reason, in the apparatus disclosed in Japanese Patent Application Laid-Open No. 59-75247, water is applied using a roller impregnated with water, but the water application tends to be uneven, causing uneven transfer.

Furthermore, a device has been proposed in which the image-receiving paper is passed through a water tank and coated with water before being sent to the transfer section, but since water is also applied to the back side of the image-receiving paper, the image-receiving paper may curl or It is an object of the present invention to provide an image recording apparatus that can uniformly apply a solvent that requires a large amount of heat during thermal transfer and cannot be applied only to a desired area.

[Means and effects for solving the problems] The image recording apparatus according to the present invention transfers an image recorded on a heat-developable photosensitive material to the image-receiving material in the presence of an image-forming solvent. The image recording apparatus includes a tank for accumulating the solvent, and a part of the tank is immersed in the solvent and is driven to rotate in accordance with the movement of the photothermographic material or the image receiving material to transfer the solvent to the photothermographic material. An endless belt provided with a solvent application portion of uniform thickness on the circumferential surface for application to a material or an image-receiving material, and a pressing roller provided opposite to the endless belt and movable in a direction in which it comes into contact with the endless belt. It is characterized in that the photosensitive material or image-receiving material being transported is bent by the pressure roller and brought into contact with the endless belt, thereby applying an image forming solvent.

When the photosensitive material or image-receiving material is conveyed to the solvent coating section, the pressing roller moves in the direction of contacting the endless belt, bending the photosensitive material or image-receiving material and bringing it into contact with the endless belt.

This endless belt is driven to rotate, and the solvent soaked in the solvent application section is applied to the photosensitive material or image receiving material while being conveyed between the endless belt and the pressure roller.

Solvent coating can be completed by releasing the pressure on the photosensitive material or image-receiving material by the pressure roller and separating the photosensitive material or image-receiving material from the endless belt, so there is no need to apply the solvent to unnecessary areas, and the photosensitive material Or, if the image-receiving material is conveyed one image at a time (for one sheet), that is, intermittently, the solvent will not adhere to the pressure roller.
Note that while the coating is being performed, it is necessary to keep at least a portion of the solvent coating portion provided on the endless belt always immersed in the solvent in the tank.

Note that the image recording apparatus of the present invention includes a heat development section that heat-develops the exposed heat-developable photosensitive material, and a transfer section that heats the heat-developed photosensitive material and the image-receiving material by overlapping them and transferring the image to the image-receiving material. The department may be provided separately,
In addition, a heat development transfer section is provided in which the heat development section and the transfer section are provided at the same location, that is, the heat development transfer section that overlaps and heats the exposed photothermographic material and the image receiving material to perform heat development and thermal transfer at the same time. It may be something that has been given.

Further, in the image recording apparatus of the present invention, for example, US Pat. No. 4,430,415, US Pat.
No. 0626, No. 4503137, JP-A-59-15
No. 4445, JP-A-59-165054, JP-A-59
-180548, JP 59-218443, JP 60-120356, JP 59-209563, JP 60-79709, JP 60-16958
5, Japanese Patent Application No. 60-244873, and the like can be used.

In the present invention, an image-forming solvent is a solvent required for image formation, such as water, a low-boiling organic solvent (
(alcohols, ketones, amides, etc.) or these solvents to which various additives such as surfactants, development accelerators, and development stoppers are added.

[Embodiment] FIG. 2 shows an image recording apparatus 10 according to this embodiment.

In this image recording apparatus 10, a magazine 14 is mounted on a machine stand 12 and stores a photothermographic material 16. The photosensitive material 16 in the magazine 14 is pulled out from its outer periphery, cut into a predetermined length by the cutter 18, and then wound around the outer periphery of the exposure drum 20 (in the direction of arrow A in FIG. 2). The exposure drum 20 is rotated in reverse after exposure, and the photosensitive material 16 is peeled off by a scraper 24 and sent to a development transfer section 28 via a water application section 34.

On the other hand, the image receiving paper 32 accommodated in the tray 30 is transferred to the development transfer section 2.
After being sent to the photosensitive material 8 and superimposed on the photosensitive material 16, it is heated by a heater in the development and transfer section 28. As a result, the photosensitive material 16 is developed, and the developed image is transferred to the receiver paper 3.
Transferred to 2.

After the transfer is completed, the photosensitive material 16 is stored in a waste tray 38 via a peeling section 36, and the image receiving paper 32 is sent out via a drying section 40 to a take-out tray 42.

The water application section 34 will be explained in detail below with reference to FIG.

A pair of conveyance rollers 44, 46 that sandwich the photosensitive material 16 being conveyed (in the direction of arrow C in FIG. 1) are disposed in the water application section 34, and a pair of conveyance rollers 44, 46 are arranged downstream of these conveyance rollers 44, 46. 48 and 50 are arranged to sandwich and convey the photosensitive material 16. These rollers are configured to send the photosensitive material 16 to the development transfer section 28 by receiving the driving force of a motor (not shown). Further, a guide plate 51 is provided corresponding to these conveyance row surfaces.

A notch 52 is provided in the middle of the guide plate 51 to allow the photosensitive material 16 to move above the guide plate 51.
A winding roller 54 is pivotally supported so as to correspond to the surface of the winding roller 54 . A part of the endless belt 56 is wound around the winding roller 54, and the other part of the endless belt 56 is wrapped around the winding roller 54.
A winding roller 60 is pivotally supported in a tank 72 in which 8 is planted.
It is wrapped around. This endless belt 56 is configured to sandwich the photosensitive material 16 together with a pressing roller 62 which is supported by the machine stand 12 in correspondence with the back side of the photosensitive material 16 moving on the guide plate 51 .

The rotating shaft 62A supported by the pressure roller 62 is connected to the machine base 1.
The pressure roller 62 is accommodated in a long hole 12A provided in the shaft 2, so that the pressure roller 62 is oriented in a direction perpendicular to the axis.

That is, it is movable in the direction of approaching and separating from the endless belt 56 (the direction of arrow C in FIG. 2 and the opposite direction).

This rotating shaft 62 is biased by a biasing force in the opposite direction of arrow C in FIG. 2, and normally excludes the outer periphery of the pressing roller 62 from the daily movement trajectory of the photosensitive material.

This rotating shaft 62A resists the urging force and rotates the endless belt 56.
When it moves in the direction (direction of arrow C in FIG. 1), it has the effect of bending the photosensitive material 16 at the outer periphery of the pressure roller 62 and causing it to go around.

The rotational force of a motor 64 supported on the machine base 12 is transmitted to the winding roller 54, and when the photosensitive material 16 sent out by the Iri feed rollers 44 and 46 is detected by a sensor 66 disposed near the feed roller 44, It rotates immediately or after a predetermined time to drive the endless belt 56.

Water 68 is injected into the water tank 58 as an image forming solvent, and the water 68 is contained in the water-absorbing portion 70 provided around the entire circumference of the endless belt 56. This water-absorbing portion 70 has a uniform thickness and is attached to the circumferential surface of the endless belt 56, and can be applied with water to the surface of the photosensitive material 16 by rotating the motor 64 in synchronization with the conveyance of the photosensitive material 416. is now possible.

The endless belt 56 is made of rubber, for example, and has a water-absorbing portion 7.
It is also possible to attach a 0he felt, a sponge, etc.

The operation of this embodiment will be explained below.

The photosensitive material 16 housed in the cassette 14 is placed on the exposure drum 2.
0, exposed by the exposure head 22, and then sent to the water coating section 34.

The photosensitive material 16 is normally conveyed linearly (as shown by the solid line in FIG. 1) between conveyance rollers 44, 46 and 48, 50, and the press roller 62 is removed from this movement trajectory by a biasing force. has been done.

When the sensor 66 detects that the leading edge of the image exposed on the photosensitive material 16 has reached the water coating, the pressure roller 6
2 is guided through the elongated hole 12A, and the endless belt 5 resists the urging force.
The photosensitive material 16 is moved in six directions (in the direction of arrow C in FIG. 1) to bend the photosensitive material 16 (see the imaginary line in FIG. 1). It is held between the belt 56 and the belt 56. The endless belt 56 is activated by the motor 6 at the same time as the sensor 66 detects the photosensitive material 16.
The rotation is started by the driving force of 4, thereby making it possible to suck water 68 from the tank 72 into the water-absorbing portion 70 and to bring out the water 68 and apply it to the exposed surface of the photosensitive material 16.

When the water application is finished, the pressure roller 62 is moved again to the long hole 12A.
The light-sensitive material 16 moves in the opposite direction of arrow C in FIG.
Since it is removed from the normal movement trajectory, it will not be applied to unnecessary areas. Further, even when the photosensitive material 16 is conveyed one image at a time, the photosensitive material 16 is transferred to the water coating section 34.
While the pressure roller 62 is not placed in the endless belt 5
Since the pressure roller 62 is separated from the pressure roller 62, water does not adhere to the pressure roller 62.

The photosensitive material 16 coated with water in the water coating section 34 is sent to the development transfer section 28 . ] - The thermal development image-receiving paper 32 taken out from the lay 30 is sent to the development transfer section 28 and overlapped with the photosensitive material 16. Here, heat development is carried out in the presence of water, and at the same time the formed dye image is heat-transferred to the transfer surface of the image-receiving paper 32. In this transfer state, the necessary amount of water has already been appropriately applied to the photosensitive material 16, so that an extremely good transfer operation can be performed.

Photosensitive material 16 and image receiving paper 3 remain in close contact after transfer
2 is sent from the development transfer section 28 to the peeling section 36, the photosensitive material 16 is stored in the stacking device 38, and the image receiving paper 32 is sent to the take-out section 40 and taken out.

In the above embodiments, the present invention has been described with reference to the case where the photosensitive material 16 is coated with water, but the present invention is also applicable to the case where the image receiving paper 32 is coated with water.

Furthermore, in the embodiment described above, the photosensitive material 16 is bent by moving the pressure roller 62 downward and brought into contact with the endless belt. The endless belt 56 may be in contact with each other.

[Effects of the Invention] As explained above, the image recording device according to the present invention includes a pressing roller that is movable in the direction of contact with the endless belt, and the pressing roller bends the photosensitive material or the image-receiving material and brings it into contact with the endless belt. At the same time, since the coating is carried out while being held and conveyed, an excellent effect is obtained in that the image forming solvent such as water can be uniformly coated on the required area.

[Brief explanation of drawings]

FIG. 10... image recording device, 16...Photosensitive material, 32... image receiving paper, 34...Mizunori! mouth, 56...e endless belt. 62...pressing roller, 68 ・ ・ Red water, 70... Water-absorbing part.

Claims (1)

[Claims] (1) In an image recording apparatus that obtains an image on an image-receiving material by transferring an image recorded on a photothermographic material to the image-receiving material in the presence of an image-forming solvent, there is provided a tank for accumulating the solvent; A part of the solvent is immersed in a solvent, and the solvent is driven to rotate according to the movement of the heat-developable photosensitive material or the image-receiving material to apply the solvent to the circumferential surface of the photothermographic material or the image-receiving material in an even thickness. and a pressing roller provided opposite to the endless belt and movable in a direction in which it comes into contact with the endless belt, the photosensitive material or image-receiving material being transferred is bent by the pressing roller. An image recording apparatus characterized in that an image forming solvent is applied by bringing an endless belt into contact with the belt.