JPH05901Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a loading mechanism for a paper mask (printing frame) in a printer. This invention relates to a paper mask loading mechanism in a printer that is inserted between the easel body and the paper, and is used to border each printed frame during the printing process on rolled printing paper.

(Prior art) There are various print sizes for color printing, such as E size (82.5 mm x 114 mm) and L size (89 mm x 127 mm). Furthermore, E size has the same paper width (82.5 mm). However, there are some with slightly different lengths, such as 114mm, 117mm, and 120mm.

Even if they are the same size, there are two types: ``with a border'' and ``without a border,'' and it is necessary to replace the paper mask from time to time.

When replacing the paper mask in a printer, if the roll paper extends into the exposure area on the easel body, unwind it once back to the original winding part, or flip the roll paper back from the exposure position. , open the front cover of the printer, insert the paper mask into the dark bag inside the printer, and replace the paper mask.Also, when installing roll paper using the inner magazine, you can remove the roll paper once inside the magazine. There is a method for rewinding the paper mask and then opening the front cover of the printer to replace the paper mask.Furthermore, this process can be further automated, allowing the size of the paper mask to be changed inside the printer, and furthermore, it is possible to change the size of the paper mask inside the printer. from the outside of the printer box.
A ``variable paper mask'' that can be operated via a control panel has also been proposed.

(Problem to be solved by the invention) When replacing paper masks manually by opening the front cover of the printer, it is necessary to remove the paper mask from the roll paper in order to prevent damage to the roll paper due to exposure. There were problems such as rewinding the film to the non-photosensitive zone and manipulating the dark bag.

On the other hand, the above-mentioned "variable paper mask", which is operated from outside the printer box, eliminates the need to open and close the front cover of the printer and rewind the roll paper, which is a significant improvement in work efficiency. However, it is mechanically complex and there are concerns that it may break down. Additionally, the equipment becomes expensive, which is certainly an advantage for printers intended for mass processing, but it is not suitable for workplaces where the number of processing is small and a relatively inexpensive and compact type is desired. It was hot.

Also, a mechanism that inserts the paper mask in the width direction of the roll paper at the exposed part of the paper may be considered, but inserting the paper mask from the width direction of the roll paper is difficult when inserting or removing the paper mask. There is a risk of damaging the edges of the roll paper at the edges.

This invention solves the problems of manual paper mask replacement and automated variable paper mask mechanisms, and eliminates the need to open the front cover of the printer and eliminates paper mask replacement work. The purpose of this invention is to provide an easy loading mechanism for paper masks in a printer.

(Means for solving the problem) In order to achieve this objective, the present invention has the following configuration. In other words, the paper mask loading mechanism in the printer according to the present invention is designed to load paper masks into the printer box between the easel main body and the roll of printing paper that moves for the purpose of printing on the easel main body placed inside the printer box. Using the provided light shielding port,
The paper mask is constructed so that it can be inserted into the exposure opening of the easel body and removed from the printer box in accordance with the longitudinal direction of the paper.

(Function) The present invention prepares several types of paper masks each having a single main body shape, each having a window of various shapes and areas approximately in the center, which can be used to match the desired printing process. While selecting it, insert it through the light-shielding opening of the printer box onto the easel body placed inside the printer box. When changing the print size, the existing paper mask is removed from the light-shielding port of the printer box, and a new predetermined paper mask is inserted through the light-shielding port to replace the paper mask.

(Example) Next, a specific example of a paper mask loading mechanism in a printer according to the present invention will be described with reference to the drawings.

Figure 1 is a perspective view of the printer just before a paper mask is inserted, Figure 2 is a vertical sectional view of the printer when a paper mask is loaded, and Figure 3 is a vertical sectional view of the light-shielding opening provided in the printer box. .

The printer 1 includes a light source box 3 and a negative carrier 4 arranged directly below the printer box 2. A front end wall 5, which forms part of the printer box 2 and faces the operator, is provided with paper. A light-shielding opening 8 that serves as an entrance and exit for the mask 6 is provided.

A light-shielding box 9 is provided inside the light-shielding opening 8, and the paper mask 6 is inserted through the light-shielding opening 8 into each of a pair of end walls 10, 10 arranged facing each other and forming the light-shielding box 9. opening 1
1 and 11. A movable plate 12 is installed inside the light-shielding box 9 and is large enough to move vertically within the box 9 and substantially cover the entire bottom surface of the box 9.
is always urged toward the bottom of the box 9 by a spring 13, and on the lower surface of the movable plate 12 and the inner bottom of the box 9, foot-long flocks 14, 14 for the purpose of blocking light grow densely. The tips of the flocked groups 14, 14 located above and below are in contact with each other in a nested manner.

The light-shielding box 9 having the above structure is fixed to the inside of the end wall 5 of the printer box 2.

There is a paper mask 6 in the printer box 2.
The easel body 15 supporting the is laid horizontally,
The paper mask 6 is inserted through the light-shielding opening 8, slides on the surface of the easel body 15, and is inserted deeply into the printer box 2.
It is located above the exposure aperture 17 of No. 5. The roll paper 19 for printers stored in the magazine or the light-shielding chamber 18 is guided by guide rollers 20, 20 groups, and extends onto the paper mask 6 loaded in a horizontal state, and when the roll paper 19 is stopped, A plate-shaped paper presser 21 is arranged which moves up and down using a solenoid (not shown) or the like.

The unexposed roll paper 19 fed onto the exposure opening 17 of the easel main body 15 is held by the paper presser 2
1 and paper mask 6, the printing operation progresses sequentially, and after the printing process, the roll paper 19 is transferred to the paper processor 2.
Move to 2.

In addition, the paper mask 6 has a plurality of types of windows 23 having different opening areas such as shapes and areas corresponding to the shapes and sizes of photographs of various sizes to be printed on the roll paper 19 approximately at the center thereof. established,
In addition, a finger hole 24 for the handle is provided near the outer end of the handle.
A plurality of paper masks 6, 6 having a single outer shape are prepared, and the paper mask 6 inserted through the light shielding opening 8 is used for light shielding with only the finger hole 24 protruding from the printer box 2. The box 9 is placed on the easel main body 15 while being supported by a pair of front and rear openings 11, 11.

When inserting or extracting the paper mask 6 from the light-shielding port 8, the movable plate 12 on which the flocks 14, 14 are implanted repeats vertical movement, and the flocks 14, 14, which are oriented differently upwardly and downwardly, are attached to the paper mask. The printer box 2 is closely attached to both the upper and lower surfaces of the paper mask 6 and has a precise light blocking power as the paper mask 6 moves.
It effectively prevents light from entering inside.

(Effects of the invention) This invention prepares in advance multiple types of paper masks with various opening areas in terms of shape and area, and then creates paper masks that match the desired size of the image to be printed on the roll paper surface. By adopting a method of inserting the mask onto the easel body through the light-shielding opening of the printer box,
When converting a paper mask, it is possible to eliminate the trouble of rewinding the roll paper to the non-photosensitive zone each time. In addition, since paper masks can be handled easily in this way, the mechanism of the printer itself can be simplified, resulting in lower costs, especially for small-scale printers with a relatively limited number of prints. It can be useful in a clean workplace.

In addition, since the paper mask is inserted onto the easel main body from the longitudinal direction of the paper, which corresponds to the moving direction of the roll paper, it is possible to eliminate the risk of damaging the edges of the roll paper with the paper mask. The light-shielding port, which serves as the insertion and ejection port for the paper mask, is provided on the front end wall that forms part of the printer box, which is located in a position that the operator always faces, so that the direction in which the paper mask is inserted is aligned with the longitudinal direction of the roll paper. Coupled with this, loading the paper mask becomes easier.

In addition, the box-shaped light-shielding opening has a group of light-shielding flocks densely grown inside, and by passing the paper mask between these flocks, reliable light-shielding performance is easily ensured when inserting and removing the paper mask. The presence of these light-shielding openings, which are assembled in a shape, helps the paper mask to be easily placed in a predetermined position because the openings provided in the front and rear end walls help the paper mask to be inserted in a balanced state. Effective in assisting work.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the printer immediately before a paper mask is inserted and loaded, FIG. 2 is a schematic vertical sectional view of the printer when a paper mask is loaded, and FIG. 3 is a vertical sectional view of a light-shielding opening installed in the printer box. In the figure, 1 is a printer, 2 is a printer box, 5 is a front end wall, 6 is a paper mask, 8 is a light-shielding opening, 9 is a light-shielding box, 11, 11 is an opening, 1
2 is a movable plate, 13 is a spring, 14, 14 are flocking groups, 15 is an easel body, 19 is a roll paper for printing, and 23 is a window.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A light shield provided in the printer box between a roll of printing paper that is moved for the purpose of printing over the easel body placed inside the printer box and the easel body. Using the opening, insert the paper mask into the exposure opening of the easel body in line with the longitudinal direction of the paper;
and a loading mechanism for the paper mask in the printer that allows it to be removed from the printer box. (2) The paper mask loading mechanism in the printer according to claim 1, wherein the light shielding opening is provided on the front end wall of the printer box facing the operator. (3) When the paper mask is inserted, the light-shielding opening is composed of a group of dense flocked hairs that adjust the vertical spacing and sandwich the paper mask from both the upper and lower surfaces. 2. A paper mask loading mechanism in the printer according to item 2.