KR930009450B1 - Roller-type developing apparatus for a cycolor video printer - Google Patents

Abstract

This developer of a printer consists of four parts: upper and lower rollers (1); a projected member (1b); a roller interval maintaining means, which maintains the interval of the rollers at a constant; a roller supporting means for supporting the upper and lower rollers (1), the means comprising a bearings (2) connected to the projected member, side plate (3), and a cushion (5) pushing the bearings perpendicularly.

Description

Developer of Cycala Color Video Printer

1 is a block diagram of a cycalar type Calivideo printer.

2 is a process diagram of a color scale color video printer.

3 is an exploded perspective view of the present invention propeller.

4 is a cross-sectional view of the assembly of the present invention the defeller.

5 is a side view of a developer showing a state before image transmission.

6 is a side view of a developer showing a state during image transmission.

7 is a state diagram in which pressure is generated in the image paper.

* Explanation of symbols for main parts of the drawings

1: Up and down roller 1a: Large neck part

1b: small diameter part 2: bearing

3: side plate 4: pressure regulation hole

5: cushion

The present invention relates to a color video printer using a cycolor method, and more particularly, to a developer device installed in a color reproduction portion.

Figures 1 and 2 of the accompanying drawings show a schematic and process diagram of a color video printer in a color scheme.

The basic configuration of the color video printer employing the Cycal method is as follows. The first configuration includes a feed roll 11, a guide roller 12, an F / O CRT 13, a capstan roller 14, It consists of a pinch roller (15), the upper and lower rollers (1a) (1b), a take-up roll (16), a heater (17), etc., forming a developer, and the feed roll (11) Printing on the award paper 10 while the wound Cylith Paper 9 is wound on the take-up roll 16 via each roller 12, 14, 15 and the upper and lower rollers 1, respectively. Becomes

That is, when the iris paper 9 wound on the feed roll 11 reaches the F / O CRT 13 through the guide roller 12, the iris paper is exposed by the light emitted from the F / O CRT 13, and the iris is exposed. The iris particles 9a attached to the paper 9 are hardened and the iris paper 9 in the exposed state passes through the capstan roller 14 and the pinch roller 15 and passes through the upper and lower rollers 1. At this time, the pressure generated between the rollers 1 causes the sire particles 9a to burst, and the image is transmitted to the image paper 10 to be printed on the image paper.

In addition, the siris paper 9 having passed through the roller 1 is wound on the take-up roll 16, and the image paper 10 on which the image is printed is polished by the heat of the heater while passing through the heater 7 above. This completes the entire process of color video printing.

In addition, in the conventional color video printer structure, a separate force device (for example, an elastic member such as a spring) is installed on the upper and lower rollers 1 so that the pressure paper is applied from the pressure means when the sire paper passes between the upper and lower rollers. Losing pressure caused the siris particles to burst.

However, since the conventional apparatus described above has to install a separate force device in the up and down rollers, the configuration of the device is complicated.

In addition, no pressure is applied to the silis paper when transferring the saaris paper which is not exposed to the image, i.e., when fixing the tip of the silis paper wound on the feed roll to the take-up roll to mount the silis paper. There is also inconvenience in using the rollers in order to increase the distance between the rollers.

An object of the present invention is to provide a developer device configured to maintain a constant interval up and down rollers without installing a separate force device.

In accordance with an embodiment of the present invention for achieving the above object, the upper and lower rollers forming a developer, and the protrusions extending from the upper and lower rollers to serve as a fixed part, and the interval between the upper and lower rollers is constant. There is provided a developer device having a space keeping means for maintaining the roller, and a roller support means for supporting the up and down rollers so as not to flow freely.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 and 4 are exploded perspective view and assembly cross-sectional view showing the developer device of the present invention, the present invention is a top and bottom roller (1) constituting the developer and the bearing (2) coupled to both ends of the roller And a side plate 3 to which the bearing is fitted and fixed, a cushion 5 installed between the upper and lower bearings, and a fixing plate 6 coupled to the upper and lower ends of the upper side plate by screws 7. Composed from the upper side of the fixing plate, the end is composed of a pressure adjusting bolt (8) and the like connected to the bearing.

On both sides of the upper and lower rollers 1, a large diameter portion 1a, which is a space keeping means between the rollers, and a protrusion 1b serving as one member of the roller support means are formed, and the bearing 2 has a small diameter portion 1b. ) Is fitted into a combination.

The bearing 2 is fitted into the pressure regulating hole 4 of the side plate 3 which is the other member of the roller support means.

Cushion (5) is inserted between the upper, lower bearing (2) serves to act to push the force in the upper and lower direction always on the bearing.

Therefore, when inserted into the pressure regulating hole 4 of the bearing 2, the bearing is pushed up and down by the cushion 5, and is in close contact with the upper and lower wall surfaces of the pressure regulating hole in an un-loading state. It prevents the up and down rollers 1 from flowing freely, and maintains the gap S slightly larger than the thickness of the siris paper (about 0.04 mm) between the up and down rollers as shown in the fourth diagram. By maintaining a small gap (Gap) between the large diameter portion (1a) of (1) to free the rotational movement of the up and down rollers.

In addition, the pressure adjusting bolt (8) serves to adjust the elastic force of the cushion (5).

The present invention configured as described above is a bearing (4) with a pressure regulating hole (4) formed in the side plate (3) in a state in which a cushion (5) is installed between the bearings (2) inserted at both sides of the upper and lower rollers (1). 2) Just insert the gap between the upper and lower rollers (1) is formed a predetermined interval (S).

The interval S is larger than the thickness of the iris paper 9, and is an interval in which pressure can be applied to burst the iris particles when the iris paper and the image paper 10 are inserted together. It is determined by the diameter of the large diameter part 1a and the protrusion part 1b formed in the roller.

Therefore, when the siris paper 9 passing through the F / O CRT 13 passes through the rollers 1 together with the image paper 10 without applying additional pressure to the up and down rollers 1, As shown in Fig. 1, pressure is generated while being compressed by the space S between the upper and lower rollers 1, and the pressure-sensitive iris particles 9a exposed by the F / O CRT 13 are blown off. The image is transmitted to 10.

In addition, the large diameter portion (1a) formed on the upper and lower rollers (1a) serves to prevent the left and right flow of the rollers together with the role of maintaining the gap between the rollers, formed between the upper and lower rollers (1) Since the gap S is formed slightly larger than the thickness of the iris paper, it is not necessary to move the roller for adjusting the gap between the rollers when the iris paper is not exposed to the image.

If the unexposed iris paper passes while the up and down rollers are in close contact without adjusting the gap, the iris particles attached to the iris paper burst and adhere to the surface of the roller. Disadvantageous problems are caused.

In the initial stage when the award paper enters the upper and lower rollers (1), the friction force (pulling force) generated between the award paper and the developer is greater than the thrust force that the developer pushes the award paper into. And proceed.

As described above, the developer device of the present invention has a gap for generating pressure between the up and down rollers, so that a separate developer force device is not necessary, thereby simplifying the structure of the device and miniaturizing the product.

Claims (3)

Upper and lower rollers 1 constituting the developer, and protrusions 1b extending from both ends of the upper and lower rollers to serve as a fixed part, and roller spacing means for maintaining a constant gap between the upper and lower rollers. And a roller support means for supporting the up and down rollers so as not to flow freely. The developer device according to claim 1, wherein the roller spacing means is provided on both sides of the upper and lower rollers and is composed of a large diameter portion (1a) having a diameter larger than the diameter of the roller. According to claim 1, wherein the roller support means is installed between the bearing (2) coupled to the protrusion (1a), the side plate (3) to which the bearing is fitted and coupled, and the upper and lower bearings to raise the bearing And a developer device of a scalar video printer comprising a cushion (5) for pushing downward.

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