JPS60112364A - Image recorder - Google Patents

Abstract

PURPOSE:To enable smooth moving of a recording medium by arranging a roller to make it opposite to a one-dimensional scanning light source and by pressing the medium to the one-dimensional scanning light source side by the roller. CONSTITUTION:An optical fiber tube is used as a one-dimensional scanning light source 1 and a silver salt film is used as a recording medium 3. The film 3 is pressed against the light emitting face of the optical fiber tube 1 by a roller 9 and makes a movement according to the rotation of the roller 9. Where friction coefficience between a support 1e provided to the light emitting face of the tube 1 and an emulsion face of the film 3 is small enough as compared with the friction coefficience between the film 3 base and roller 9, thereby allowing the film 3 to move by a stable speed in correspondence to the rotation of the roller 9. Then, pressure for pressing the film 3 against the light emitting face of tube 1 by the roller 9 can be very small, thereby giving few flaws to the emulsion face of the film 3 caused by the sliding contact of the film 3 with the support 1e.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to an image recording apparatus using a one-dimensional scanning light source that selectively emits light one-dimensionally as an exposure means.

(Prior Art) In an image recording apparatus using a one-dimensional scanning light source that selectively emits one-dimensional light as an exposure means, a direction (sub-scanning direction) substantially perpendicular to the scanning direction (main scanning direction) of the one-dimensional scanning light source is used. The recording medium is configured to record an image on the recording medium while moving the recording medium.

FIG. 1 is a configuration explanatory diagram showing an example of the main part of such a conventional recording apparatus, in which a cylindrical roller 2 is arranged so as to face the light emitting surface of a -dimensional scanning light source 1, and this roller 2
The recording medium 3 is wound around the disk.

However, according to such a configuration, since the recording medium 3 is wound around the outer periphery of the roller 2, the recording medium 3 faces the light emitting surface of the one-dimensional scanning light source 1 as an arcuate surface. Therefore, -dimensional scanning light 11. ! = Then,
For example, as shown in Figure 2, the light emitting parts R of each color of red, green, and blue
, G, and B are provided in a striped manner at predetermined scanning intervals, the distances between the light emitting surfaces of each light emitting section R, G, and B and the recording medium 3 are different, causing out-of-focus and high This means that you will not be able to obtain a quality image. These drawbacks can be eliminated to some extent by increasing the diameter of the roller 2, but increasing the diameter of the roller 2 also requires more space, making it impossible to achieve miniaturization. Further, according to such a configuration, a mechanism for separately fixing the roller 2 and the recording medium 3 is also required, making the structure complicated.

FIG. 3 is a configuration explanatory diagram showing an example of the essential parts of another conventional recording device, which is used to move the recording medium 3 in a plane while applying tension to both sides of the light emitting surface of the -dimensional scanning light source 1. rollers 4 to 7 are provided.

With this configuration, the recording medium 3 can be moved in a plane with respect to the light emitting surface of the one-dimensional scanning light source 1, but the drive mechanism is complicated because a plurality of rollers 4 to 7 must be driven. become.

Further, when using a cut sheet-shaped recording medium 3, accurate feeding operation is performed only when the recording medium 3 is held between the rollers 4 to 7. Correct exposure cannot be performed if the recording medium 3 is only held between 30 and 50 mm at both ends along the moving direction
is wasted, and the entire surface of the recording medium 3 cannot be used.

FIG. 4 is also a configuration explanatory diagram showing an example of the essential parts of another conventional recording apparatus, in which a table mechanism 8 that moves parallel to the light emitting surface of the -dimensional scanning light source 1 is provided, and this table mechanism 8 is provided. The recording medium 3 is attached to the table surface of the table.

According to such a configuration, the recording medium 3 can be moved in a plane with respect to the light emitting surface of the one-dimensional scanning light source 1,
Furthermore, the entire surface of the recording medium 3 can be used effectively. However, a mechanism for driving the table mechanism 8 must be provided, making the configuration complicated. Also, these mechanical parts require a high degree of adjustment. Furthermore, a mechanism for fixing the recording medium 3 to the table mechanism 8 and a mechanism for removing it must also be provided.

(Object of the Invention) The present invention has been made in view of the above problems, and its purpose is to smoothly move a recording medium while bringing it into planar contact with a one-dimensional scanning light source using a simple structure. The object of the present invention is to realize an image recording device in which recording media can be easily taken in and taken out.

(Structure of the Invention) An image recording apparatus of the present invention that achieves this object uses a one-dimensional scanning light source that selectively emits one-dimensional light as an exposure means, and
In an image recording apparatus configured to record an image on a recording medium while moving the recording medium in a direction substantially perpendicular to the scanning direction of the dimensional scanning light source, a roller is arranged to face the -dimensional scanning light source. The apparatus is characterized in that the recording medium is moved while being pushed by the roller toward the -dimensional scanning type light source.

(Example) Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 5 is an explanatory diagram showing a main part of an embodiment of the present invention, and shows an example in which an optical fiber tube is used as the -dimensional scanning light source 1 and a silver halide film is used as the recording medium 3. (Hereinafter, the film will also be indicated by the reference numeral 3). On the end face of the fiber 1a of the optical fiber tube 1, there is a support 1e (made of PET or the like) on which blue, green, and red color filters 1b to 1d are coated or adhered in a striped manner.
It is pasted so that the surface opposite to the surface on which ~1d is formed faces outward. Reference numeral 9 denotes a roller, which is made of, for example, rubber or vinyl.

This roller 9 is arranged so as to face the light emitting surface of the optical fiber tube 1 and to be movable with respect to the light emitting surface. Note that guides 10 to 13 configured to guide the film 3 from both sides are provided near the light emitting surface of the optical fiber tube 1.

In such a configuration, the film 3 is pressed against the light emitting surface of the optical fiber tube 1 by the rollers 9;
Move according to the rotation of. Here, the support 1e and the film 3 provided on the light emitting surface of the optical fiber tube 1
Since the coefficient of friction between the film 3 and the emulsion surface is sufficiently smaller than that between the base of the film 3 and the roller 9, the film 3 moves stably at a speed corresponding to the rotation of the roller 9. Become. At this time, the pressure with which the film 3 is pressed against the light emitting surface of the optical fiber tube 1 by the roller 9 may be extremely small, and the emulsion surface of the film 3 is hardly scratched by sliding contact with the support 1e.

The device configured in this way has the following advantages.

(1) The structure is simple.

(2) Since the film 3 contacts the light emitting surface of the optical fiber tube 1 in a planar manner, recording quality is not impaired.

(3) Since the film 3 is moved by the rotation of the roller 9, it is easy to obtain a constant speed.

(4) Since the film 3 is not fixed, the film 3 can be taken in and out and transported smoothly.

(5) The film 3 can be stably fed from the moment it contacts the roller 9, so there is no waste.

FIG. 6 is a configuration explanatory diagram showing a specific example using the apparatus shown in FIG. 5, and the same parts as in FIG. 5 are denoted by the same reference numerals. In FIG. 6, the films 3 stored in the cassette 14 are sent out one by one toward the optical fiber tube 1 from above by a delivery roller 15. The leading edge of the film 3 fed out from the cassette 14 is detected by a position detector 16 made of, for example, an infrared photocoupler, and the feeding roller 15 stops rotating when the leading edge of the film 3 is slightly resting on the roller 9. Next, the rollers 9 move the film 3 while pressing it against the light emitting surface of the optical fiber tube 1. At this time, the feed roller 15 is separated from the cassette 14. At the same time as the rotation of the roller 9 reaches a constant speed, the optical fiber tube 1 starts exposing.
Exposure is completed with the rear end of the film 3 on the roll 9.

When the exposure is completed, the rotation of the roller 9 stops. In this state, the leading end of the film 3 has reached the feed roller 17, the feed roller 17 feeds the film 3 into the phenomenon device 18, and the roller 9 leaves the light emitting surface of the optical fiber tube 1.

In this configuration, instead of moving each roller 9, 15, each roller 9, 15 is connected to the motor shaft via a clutch, and depending on the control of the clutch, the rollers 9, 15 are rotated freely or rotated according to the motor shaft. You can do it like this. Further, the means for pulling out the film 3 from the cassette 14 and feeding it to the roller 9 is not limited to the feeding roller 15, and a claw-like feeding member may be used.

Further, the -dimensional scanning light source is not limited to an optical fiber tube, but may be a light emitting diode array, a combination of a light source and a liquid crystal shutter, or the like. Furthermore, the recording medium is not limited to silver halide film (it may also be photographic paper, etc.).

Further, in the above embodiment, an example in which a guide is provided has been shown, but it may be omitted depending on the type of recording medium, etc.

Furthermore, by shifting the position of the roller from the scanning line position of the light emitting surface of the -dimensional scanning light source, for example, as shown in FIG. By arranging the filter 1d at a position shifted downward by hdc], it is possible to prevent the filter 1d from being damaged by the FJJE4 with the recording medium 3. Note that 1[.

19 is glass for protecting the fiber 1a,
It is also possible to make the glass 1g portion thicker than in FIG. 7, and press the roller 9 against the end face of the comb.

(Effects of the Invention) As explained above, according to the present invention, it is possible to smoothly move the recording medium while bringing it into planar contact with the one-dimensional scanning light source side with a simple structure, and it is also possible to take in and out the recording medium. A simple image recording device can be realized.

[Brief explanation of drawings]

Figure 1 is a configuration explanatory diagram showing an example of the main parts of a conventional device;
1 is an explanatory diagram of the operation of the device, FIGS. 3 and 4 are also configuration explanatory diagrams showing the main parts of the conventional device, FIG. 5 is a configuration explanatory diagram showing an embodiment of the present invention, and FIG. FIG. 5 is an explanatory diagram showing a specific example of the structure using the apparatus, and FIG. 7 is an explanatory diagram showing another embodiment of the invention. 1... -dimensional scanning light source 3... Recording medium 9... Rollers 10 to 13... Guide 14... Cassette 15...
・Feeding port-ra 16...Position detector 17...Feeding roller 18
...Developer device patent applicant Representative of Konishiroku Photo Industry Co., Ltd. Patent attorney Osamu Ijima Fuji

Claims (1)

[Claims] A one-dimensional scanning light source that selectively emits one-dimensional light is used as an exposure means, and an image is recorded on the recording medium while the recording medium is moved in a direction substantially perpendicular to the scanning direction of the one-dimensional scanning light source. The image recording apparatus is characterized in that a roller is disposed to face the -dimensional scanning type light source, and the recording medium is moved while being pressed against the -dimensional scanning type light source by the roller. Image recording device.