KR970003686B1 - Apparatus to develop an image on a sheet of developing paper - Google Patents

Abstract

No summary

Description

Developing equipment

1 to 9 show a first embodiment in which the developing device of the present invention is applied to a pressure printer.

1 is an enlarged cross-sectional view showing a stage, a roller, and the like.

2 is a front view.

3 is a plan view.

4 is an enlarged cross-sectional view taken along line IV-IV of FIG.

5 is an enlarged perspective view of the main portion shown by cutting a part.

6 is an enlarged cross-sectional view taken along line VI-VI of FIG.

7 is a perspective view showing the roller and the roller support part in an exploded manner.

8 and 9 show a modified example of the stage, and FIG. 8 shows an enlarged perspective view of a part of the stage.

9 is a front view.

10 and 11 show a second embodiment of the developing apparatus of the present invention, and FIG. 10 is a partially cutaway perspective view of the main portion.

11 is an enlarged plan view of a part of a stage.

12 is a perspective view of a main portion showing the third embodiment of the developing apparatus of the present invention.

13 is a perspective view of a main portion showing the fourth embodiment of the developing apparatus of the present invention.

14 is a schematic perspective view showing an example of a conventional pressure printer.

Fig. 15 is a perspective view of a main portion showing an example of cyan of the developing apparatus.

* Explanation of symbols for the main parts of the drawings *

1: developing device 2: photosensitive material

6: color developing material 16: stage

16a: Roller contact surface (of stage) 17, 18: Unevenness

68,68 ': roller 68a, 68'a: outer circumference

16A: stage 74a: roller contact surface

75 developing apparatus 76 stage

76a: Roller contact surface (of stage) 77,78: Unevenness

79 developer 80: stage

80a: Roller contact surface 81 (on stage)

82: stage 82a: roller contact surface (on stage)

The present invention relates to a novel developing apparatus. In detail, a microcapsule of an exposure hardening type or an exposure softening type of a pigment precursor material that develops color in combination with a predetermined developer material or a color developing material having its own color development property. A developing device for displaying an image on a string material by pressing a photosensitive material and a predetermined color material encapsulated in a pressing member into two pressing members pressed against each other and pressing each other. This type of developing apparatus can be configured in a compact and low cost by scanning the photosensitive material and the developing color material, and the pressure contact force at the contact portion between the two pressing members is concentrated at a plurality of points. It is an object of the present invention to provide a novel developing apparatus capable of performing a clean development in which concentration is not uneven.

The developing apparatus of the present invention is a developing apparatus for displaying an image on the developing material by press-contacting the photosensitive material and the developing material at a predetermined pressure by means of pressing means. It is constituted by a pressure ruler moving in a state in which it is pressed against the stage while moving in a direction intersecting with a traveling direction such as a developing material, and at the same time, minute unevenness is formed on the roller contact surface of the stage or on the outer circumferential surface of the roller. The pressure contact force in the contact portion between the roller and the roller is concentrated at a plurality of points in the contact portion, whereby the development by this kind of developing apparatus is performed at a very low pressure, and furthermore, without unevenness in the developing concentration, I would have to.

There are various types of developing systems for developing an image on a color paper, and one of them has a photosensitive material having a color development element and a predetermined color development material to be pressed against each other to render an image on the color material. The system is used in pressure printers or copiers of pressure-settling systems.

For example, a pressure precursor is coated with a pigment precursor formed by encapsulating a pigment precursor that is developed by compounding with a predetermined developer in an extremely minute capsule which produces anti-destructive anti-destructive properties when exposed to a predetermined light. The photosensitive film is used as a photosensitive material, and the exposure surface of the photosensitive film is exposed to each pixel in which a predetermined image is decomposed by ultraviolet light, for example, to form a print film, and the photosensitive film in this state is predetermined. By overlaid and pressurized with the development paper coated with the developer, the unexposed capsule is destroyed, and the pigment precursor material in the capsule is transferred to the development paper, thereby causing an image to appear on the development paper.

14 schematically shows different examples (a) of the conventional pressure printer.

In this figure, (b) is a long photosensitive film, and (c) is a single cover color paper.

(d) and (e) are pressurized rollers of approximately cylindrical shape having a length slightly longer than the width of the color paper (c), and the lower press roller (e) is rotatably supported by a support frame (not shown). In addition, it is rotated by a motor, the upper pressure roller (d) is supported so as to rotate on a pressing frame (not shown) which is pressed downward by a strong elastic member, and is also in pressure contact with the lower pressure roller (e) The photosensitive film (b) and the color paper (c) are supplied between the pressure rollers (d) and (e) in a state of being superimposed on each other after a predetermined exposure to the photosensitive film (b).

Then, when the lower pressure roller e rotates, the upper pressure roller d, which is press-contacted thereto, also rotates at the same time, so that the photosensitive film b and the color paper c run while being pressed against each other. As a result, the capsule of the unexposed pigment precursor of the photosensitive film (b) is destroyed, and the pigment precursor material enclosed therein is transferred to the developer paper (c), whereby the pigment precursor material is developed on the developer paper to develop the developer. The image is printed in (c).

According to the printer (a), since the printer operation can be performed continuously without stopping, there is an advantage that the printing speed is high.

However, the two upper and lower pressurizing rulers d and e need a very large pressure to press the entire band-shaped pressure-contacting region extending in the width direction of the photosensitive film b and the color paper c at once. For example, when the pressure rollers (d) and (e) have a size corresponding to the color paper of A4 plate size, the pressing force by the pressure rollers (d) and (e) is required to be 1,000 kg to 1,500 kg. The support frame supporting the upper pressure ruler (d) is provided with a very large pressure source capable of applying such a pressure, for example, a compression spring having a strong spring constant.

Therefore, the printer (a) using such pressurizing rollers (d) and (e) requires very high mechanical strength at each of its parts, and uses a motor with a large output or presses the rotational force of the motor to the lower pressurizing roller ( Since it is necessary to use a chain or the like for the transmission mechanism delivered to e), there is a problem that the shape and weight are larger than the size of the image to be printed, the cost is high, and assembly and maintenance are difficult.

Thus, as shown in FIG. 15, a substantially circular circle which is pressurized for press-contacting the photosensitive film b and the color paper c is in contact with the stage f as the stationary side member and the stage f. It consists of a plate-shaped pressure roller g, and moves the pressure roller g in the state which sandwiched the photosensitive film b and the color paper c superimposed on each other by the stage f and the pressure roller g. And developing one image by repeating the movement of the pressure roller g and the transfer of the photosensitive film b and the color paper c alternately. Considered that.

According to such a printer h, the pressing roller g, which is a pressing means, moves to scan the photosensitive film b and the color paper c, so that the pressing force may be smaller than the pressing force required for the printer a. In addition, since the pressure roller g and the stage f are pressed in an area having a certain width, i.e., the width of the outer circumferential surface i of the pressure roller g, the developing speed is not extremely delayed.

However, since the pressure ruler g is in surface contact with the stage f in the width direction of the outer circumferential surface i, the pressure ruler g is sandwiched by the stage f and the pressure ruler g in the photosensitive film b. It is difficult to concentrate the pressure on the individual pigment precursors in the portion, and thus there is a problem that some of the pigment precursors that are not exposed, that is, some of the pigment precursors whose capsules are to be destroyed, remain unbroken. Particularly, in the case where the exposed pigment precursors in the portions sandwiched between the stage f and the pressure ruler g are present more than the unexposed pigment precursors, the exposed pigment precursors, that is, the color precursors with cured capsules, are used as the stage ( The distance between f) and the pressure roller g may be prevented from being below a certain size, and most of the capsules of the pigment precursor which are not exposed may remain unbroken.

In this way, if the capsule of the destructive pigment precursor remains unbroken, pixels containing the pigment precursor will not be colored in a predetermined color, resulting in nonuniformity in developing concentration, and in some cases, an image in which part of the destructive pigment precursor is missing may appear. .

Therefore, in order to prevent the phenomenon unevenness caused by such a cause, the pressure contact force between the stage f and the pressure ruler g is strengthened, the width of the pressure ruler g is reduced, or most of the pressure contact areas are pressure rulers. It is also contemplated that (g) allow a plurality of scans, but increasing the pressure contact force causes an increase in the size of the apparatus and causes various problems of the printer (a) shown in FIG. If the width is made small, the problem of developing speed becomes slow.

Thus, in order to solve the above-mentioned problems, the developing device of the present invention has a ruler which is driven in a state in which it is pressed against the stage and the stage, and sandwiches the ruler between the photosensitive material and the developer material sandwiched with each other. The development is carried out by moving in the direction intersecting with the traveling direction, and fine irregularities are formed on either the ruling contact surface of the stage or the outer peripheral surface of the ruler.

Therefore, according to the developing apparatus of the present invention, since the ruler, which is the pressing means for press-contacting the photosensitive material and the developing color material, moves to scan the photosensitive material or the developing color material, the shape of the pressing means and the pressing force required for the pressing means can be made very small. This makes it possible to make this kind of developing apparatus small in light weight and low cost, and further, an easy structure for assembling or repairing. Furthermore, since minute irregularities are formed on the ruler contact surface of the stage or the outer circumferential surface of the ruler, the pressure contact force at the contact portion between the stage and the ruler is concentrated at each contact point with the stage or the ruler, whereby the individual photosensitive material is provided. Since the breakdown of the capsule of the pigment precursor and the transfer of the pigment precursor to the developer of the coloring material are performed reliably, a clean phenomenon can be performed in which the density of development is not uneven. As the contact force can be concentrated in a distributed manner, the contact width between the ruler and the stage due to the same pressing force can be widened, so that the developing speed by this type of developing device can be significantly increased.

Next, the detail of the developing apparatus of this invention is demonstrated according to each Example shown.

(1) First Embodiment (FIGS. 1 to 9)

1 to 9 show a first embodiment (1) in which the developing device of the present invention is applied to a printer using a long photosensitive film as a photosensitive material.

Next, an example of the photosensitive film and the color paper will be described first. Next, the printer 1 shown in FIGS. 1 to 7 will be described. Finally, the modified example of the stage shown in FIGS. 8 and 9 will be described. It demonstrates.

(a) Photosensitive film, color paper (FIGS. 1, 3-6)

(a-1) Photosensitive Film

(2) is a long photosensitive film.

The photosensitive film 2 has a predetermined film base material 3 (see FIG. 1), for example, one side 2a of the film of a synthetic resin transparent and low in elasticity to heat or tensile force (hereinafter referred to as "exposure"). Surface ") to the photosensitive photosensitive pigment precursors (4), (4),... … This is done by installing (see Figure 1).

These pigment precursors (4), (4),... … For example, a very small amount of pigments, such as a few 10 microns to 100 microns in size, can be cured by changing the structure of the molecular bonds by irradiating ultraviolet light of a predetermined wavelength, that is, hardening. It is made by encapsulating a precursor, that is, a developing material installed on a developing paper described later, and a material which develops a predetermined color, and at the same time, a plurality of different colors, for example, one of red, blue, and green on the developing paper. Pigment precursors (4), (4), which have a pigment precursor having a pigment which has a color developing therein, and which have a pigment precursor having a different color on the exposed surface (2a). … Are mixed and attached a myriad.

The photocuring properties of these capsules are different from each other because the pigments of the encapsulated pigment precursor are different, and are cured only when ultraviolet light having a predetermined wavelength is irradiated. Thus, for example, ultraviolet light having a wavelength for curing a capsule in which a pigment precursor that develops red color is cured is not cured even if irradiated onto a capsule in which a pigment precursor that develops blue or green color is enclosed.

In addition, such a photosensitive film 2 is housed in a roll-shaped state in the film cassette 5 forming a substantially cylindrical shape. 5a is a film exit.

(a-2) Colored paper

(6), (6),... … Is the color paper on which the image is developed.

This color paper (6), (6),... … Is generally formed in the shape of a rectangular single cover, and on one side 6a (hereinafter referred to as "developing surface"), a predetermined developing material 7 (see FIG. 1), that is, the pigment precursor (4), (4),... … The compound which mix | combines with the pigment precursor substance of the predetermined color development is apply | coated.

Therefore, when the photosensitive film 2 exposed to this color paper 6 is overlaid and pressurized in the state which the developing surface 6a and the exposure surface 2a oppose, the pigment precursor formed in the photosensitive film 2 is carried out. When the capsule is not cured, the pigment precursor substance encapsulated therein is transferred to the developing surface 6a of the color paper 6, whereby the pigment precursor substance and the developer substance 7 are transferred. It is combined to give a predetermined color.

In addition, (8) is a color paper (6), (6),... … Trays in which a large number are stored, (9) are paper feed rollers, and the colored papers (6), (6),... … The sheet feeding roller 9 is supplied on a stage to be described later one by one at a predetermined timing.

(b) Printer (FIGS. 1-7)

(b-1) Base portion (FIGS. 1 to 4)

Denoted at 10 is a base portion of the printer 1, the bottom plate 11 and the bottom plate 11 on the left and right sides (left side in FIG. 3 are on the left side and the right side is on the right side. The lower side is the front side, the upper side is the rear side, and the upper side in Fig. 2 is the upper side, and the lower side is the lower side. Side frame 13 and side wall 12 connecting between three side walls 12 and 12 'upwardly and approximately an intermediate portion in the vertical direction of the front end portions of the side walls 12 and 12'. It consists of a back plate 14 connected between the rear end of the (12 ').

The film cassette 5 is attached to the rear end of the lower end portion of the base portion 10 in a direction in which the axial direction thereof extends along the left and right directions and the film outlet 5a faces upward.

15 is a locking member for locking the movable frame, which will be described later, rotatably supported by the base portion 10 with respect to the base portion 10, and both left and right ends thereof are rotatably supported by the frame 13. Further, lock clicks 15a and 15a (only those on the right side of the drawing are shown) are formed at the upper ends of the left and right ends.

(b-2) Stage (FIGS. 1-6)

Numeral 16 denotes a stage for sandwiching the photosensitive film 2 and the color paper 6 between the photosensitive film 2 and the color paper 6 between the pressure rulers described later.

The stage 16 is formed of a metal having a relatively high hardness, is elongated in the left-right direction, and has a substantially rectangular cross-sectional shape orthogonal to the longitudinal direction, and both ends thereof are formed on the sidewalls 12, 12 '. It is fixed to the substantially middle part in the front-back direction of the upper end part of).

The upper surface 16a of the stage 16 is a flat surface facing upwards, and both ends in the width direction thereof are obliquely chamfered.

Then, the grooves 17, 17,... Which are minute to portions except the opposite ends in the width direction of the upper surface 16a of the stage 16. … Many of these are formed, and these grooves 17, 17,... … Is arranged in a state extending in parallel in the longitudinal direction of the stage 16 at a pitch p of the resolution of the image, for example, 100 µm or slightly larger than that, for example 200 µm. The cross-sectional shape orthogonal to the direction forms a large V-shape and has a depth approximately twice that of the pitch p. The pitch p may be 100 µm or less, or 200 µm or more when high resolution is not required.

Therefore, the upper surface 16a of the stage 16 is formed in the grooves 17, 17,... … Protrusions 18, 18 having cross-sections of approximately inverted V-shapes at portions between the angles; … Are arranged in the width direction.

And such grooves 17 and 17,... … Is formed by, for example, laser processing.

(19), (19), (19 '), (19') are paper guides fixed to the front and back sides 16b, 16c of the stage 16, and these paper guides 19, 19, and 19 'and 19' denote the photosensitive film 2 and the color paper 6, 6,... … Is for regulating the position in the width direction with respect to the stage 16, the upper end of which is slightly higher than the upper surface 16a of the stage 16, and on the left side of the paper guides 19, 19 and the right side. The interval between the paper guides 19 'and 19' is colored paper (6), (6),... … It is about the same size as the width.

(b-3) Feed rollers, FOT, etc. (2 to 5)

(20) is a feed roller for driving the photosensitive film (2) and the color paper (6), a position slightly away from the rear of the stage (16), and slightly lower than the upper surface (16a) of the stage (16). The position roller 21 is a tension roller disposed at a position slightly away from the front of the stage 16 and located slightly below the upper surface 16a of the stage 16, and these rulers 20, The paper conveying motor 22 is formed of a stepper motor which is supported at both ends thereof so as to be rotatable on the side walls 12 and 12 'and is supported on the bottom plate 11 of the base 10. And the reduction mechanisms 23 and 24 are rotated in the clockwise direction in FIG. 4 at a predetermined timing. Then, the feed roller 20 is rotated slightly slower than the tension roller 21, whereby the photosensitive film 2 and the color paper 6 are slightly tensioned between these rollers 20 and 21. .

Denoted at 25 is a medium guide plate, and at 26 is a film guide.

Reference numeral 27 denotes a light source (hereinafter referred to as "FOT") for exposing the photosensitive film 2 in a pattern suitable for a predetermined image signal, and is formed by tying a plurality of optical fibers, and the light exit end surface of the optical fiber is FOT. On the light emitting surface 27a of (27), the optical lines are arranged in the left and right direction without any gap to form an exposure line and at the same time, three such exposure lines are arranged in a line up and down. Ultraviolet light of the same wavelength is emitted from the light source, and the wavelength is different from each exposure line, and the beam diameter emitted from the optical fiber has a diameter corresponding to the size of the pixel decomposed at a predetermined resolution. Precursors (4), (4), ... ... are of three combined sizes.

Further, the FOT 27 is fixed to the base portion 10 with its light emitting surface 27a generally facing backward, and the photosensitive film 2 is disposed between the film cassette 5 and the film guide 26. It is in contact with the light emitting surface 27a of the FOT 27 at the position.

Thus, when the photosensitive film 2 is intermittently driven at the same pitch as the exposure line, the FOT 27 irradiates ultraviolet light that matches the pattern for each line of the predetermined image, thereby exposing the photosensitive film 2. A constant region of the surface 2a is exposed in a pattern suitable for a predetermined image, and the exposed region is a print film.

(b-4) movable frame, guide shaft, driven ruler (2 to 6)

Reference numeral 28 denotes a movable frame, which is substantially the same size as the side walls 12, 12 'of the base portion 10, and is separated from the left and right directions by two side plates 29, 29'. And the connecting plates 30 and 31 connecting the upper ends of the side plates 29 and 29 ', and the lower ends of the rear ends of the side plates 29 and 29 are supported by the support shaft 32, (32) (only one is shown in FIG. 4), it is rotatably supported by the upper end part of the rear end of the side wall 12, 12 'of the base part 10, and 12'.

And, at the corner portion where the front edge and the lower edge of the side plates 29 and 29 'intersect, the pins 33 and 33 (shown in Fig. 4) are protruded inwards. The movable frame 28 has the lock member 15 on the peak lopins 33 and 33 in a state in which the pressure roller of the movable block, which will be described later, is in contact with the upper surface 16a of the stage 16. The lock clicks 15a and 15a of the < RTI ID = 0.0 >) < / RTI >

Reference numerals 34 and 34 'are stoppers fixed generally at the center of the inner surfaces of the side plates 29 and 29', and define the moving range of the moving block to be described later.

(35) and (35) are cylindrical guide shafts elongated in the left and right directions, and are disposed in a state in which they are separated from each other in the front and rear directions above the stage 16, and both ends thereof are side plates 29 and 29 '. It is fixed at.

(36) and (37) are driven rollers in pairs with the feed rollers 20 and tension rollers 21, respectively, and support arms whose both ends are pivotable on the side plates 29 and 29 '. (38), (38),... … While being rotatably supported at the rotational end of the rollers, the rollers 20 and 21 are disposed at positions corresponding to substantially upwards, and the movable frame 28 is locked with respect to the base portion 10. Support arms 38, 38,... … Torsion springs (39), (39),. … The rollers are in contact with each of the rollers 20 and 21 by the elastic force.

Then, the photosensitive film 2 is pulled out of the film cassette 5 and then wound on the film guide 26 and at the same time, extending from the front to the front, and between the tensioning roller 20 and the driven roller 36 and tension. The winding spool shown in the drawing is passed past the roller 21 and the driven roller 37, and the FOT 27 is positioned at the position between the film cassette 5 and the film guide 26 as described above. The part which is in contact with the light emitting surface 27a and between the part interposed between the feed roller 20 and the driven roller 36, and the part interposed between the tension roller 21 and the longitudinal roller 37 is the stage 16 Is in contact with a portion between the paper guides 19, 19, 19 ', and 19' of the upper surface 16a of the top face 16a.

And color paper (6) (6),... … When the printing operation is started, the sheet feeding roller 9 is supplied between the feed roller 20 and the vertical roller 36 at a predetermined timing one by one.

(b-5) Transfer belt, sensor (2nd to 6th degree)

40 is a motor, is supported by the attachment side plate 41 which protruded toward the left side from the left side plate 29 of the movable frame 28, and the lateral direction follows the up-down direction, and is driven by the rotating shaft 40a. The roller 42 is fixed.

The reference numeral 43 is a driven roller, and is rotatably supported by the support shaft 45 fixed to the support plate 44 protruding toward the right side from the side plate 29 'on the right side of the movable frame 28.

Then, the driving roller 42 and the driven roller 43 are disposed at a position slightly higher than the guide shafts 35 and 35.

Then, an endless feed belt 46 is interposed between the drive roller 42 and the driven pulley 43.

Then, the carriage of the moving block described later is connected to the conveying belt 46, and the motor 40 rotates in the clockwise direction in FIG. 3 when moving the moving block to the right (hereinafter referred to as "forward rotation"). When moving the moving block to the left side, it is rotated counterclockwise (referred to as "reverse rotation").

(47) and (48) are sensors for detecting that a moving block, which will be described later, is at the end of the moving range, and has a pair of light emitting elements 49 and 49 and a light receiving element opposed to each other at predetermined intervals. (50) and (50), and the light emitting elements 49, 49 and the light receiving elements 50, 50 are left and right ends of the connecting plate 30 in opposite directions while being separated in the front-rear direction. It is supported by the support pieces 51 and 51 fixed to it.

(b-6) Moving block (FIGS. 1-7)

52 is a moving block, a carriage supported by the guide shafts 35 and 35 so as to be movable in the left and right directions, and two roll supporting arms rotatably supported by the carriage and the roller supporting arms to rotate on the roller support arms. It consists of two pressurized rollers, which can be supported, and a compression spring for exerting a spring force on the roller support arm.

(b-6-a) carriage, flap

53 is a carriage.

Reference numeral 54 is a main portion of the carriage 53, and the main portion 54 forms a block shape having a substantially square shape from above and having a thickness of about half the height of the movable frame 28. The front and rear ends of the upper surface are slightly higher than the rest, and two spring arrangement holes 55 and 55 penetrated in the height direction at the center portion in the front and rear direction are formed at intervals in the left and right directions. have.

Reference numerals 56 and 56 are arm supporting pieces which protrude downward from a position at which the spring batch holes 55 and 55 are inserted at both front and rear sides of the lower surface of the main part 54, and the arm supporting pieces 56 are provided. The support holes 56a and 56a which penetrate these arm support pieces 56 and 56 in the thickness direction, ie, the front-back direction, are formed in the substantially middle part in the left-right direction of (56).

(57), (57), (57) are insertion holes penetrating approximately the middle portion in the height direction of the main portion 54 in the left and right directions, and the insertion holes (57), (57), (57) are springs. It extends across the placement holes 55 and 55.

(58) and (58 ') are long pieces in a long direction in the left and right direction when viewed from above, and these pieces (58) and (58') have only half of the width in the width direction of the carriage ( 53 is fixed to the carriage 53 while being positioned to protrude from the upper surface of the main portion 54 of the main portion 54 to the front (front flap 58) or the rear (rear flap 58 ') and at the same time the projection 59 (59) is formed, and the light shield (58a) which protrudes upward from the front part is integrally formed in the front piece (58).

60, 60,... … Are the support shafts which protrude from two positions left and right of the front and back surfaces of the main part 54 of the carriage 53, These four support shafts 60, 60, ... … Guide rollers 61, 61,... … Deep coupling grooves 61a, 61a,... … Is formed.

The carriage 53 is guided rollers 61, 61,... … Coupling grooves 61a, 61a,. … Is rotatably coupled to the guide shafts 35 and 35 installed on the movable frame 28 from below, and the projections 59 and 59 formed on the blades 58 and 58 'are guide shafts. Connecting pieces 62 fixed to the upper surface of the main part 54, which are supported by the guide shafts 35 and 35 so as to face the gaps 35 and 35 at a slight interval from the upper side. ) Is connected to the transfer belt 46.

Therefore, the carriage 53 is moved to the left and right directions by the conveyance belt 46 running.

In the state where the movable frame 28 is locked with respect to the base tab 10, the carriage 53 is applied upward by the reaction force generated by the pressure roller, which will be described later, in contact with the stage 16. Guide rollers 61, 61,... … Of the engaging grooves 61a and 61a are brought into contact with the guide sides 35 and 35 from below, whereby the positions of the carriage 53 in the vertical direction are defined.

(b-6-b) Roller support arm, pressure roller (FIGS. 1-7)

63 and 64 are roller support arms.

63a and 64a are the main parts of the roller support arms 63 and 64, and the support pieces 63b, 63b, 64b, and 64b which oppose parallel to each other at the front and rear ends thereof are lowered. And insertion holes 65, 65, which penetrate the back and forth in substantially central portions of the support pieces 63b, 63b, 64b, and 64b. … Are formed, and further, circular circular recesses 66 and 66 are formed on the upper surfaces of the main parts 63a and 64a.

Moreover, the support part 67 which protruded toward the right side from about half of the rear side of the right side of the right side of the main part 63a of the left roller support arm 63, and the left side of the main part 64a of the right roller support arm 64 Support portions 67 protruding toward the left side from approximately half of the front side are integrally formed, and insertion holes 67a and 67a which penetrate these supports 67 and 67 in the front-rear direction are formed, respectively. It is. The tip faces 67b and 67b of these support portions 67 and 67 are circular arc surfaces extending in the vertical direction.

68 and 68 'are pressure rollers, and these pressure rollers 68 and 68' have a thickness of about one quarter of the width of the stage 16, for example, about 4 mm thick. It forms a disk and is formed of a metal with high hardness, and the outer peripheral surfaces 68a and 68'a have a whole area in the width direction parallel to the centering of the pressure rollers 68 and 68 '. It is formed on the surface extending.

In addition, 69 and 69 are insertion holes 65 and 65 formed in the support pieces 63b, 63b, 64b and 64b of the roller support arms 63 and 64, respectively. … … The pressure rollers 68 and 68 'are press-fitted into the support shafts between the support pieces 63b and 63b of the roller support arms 63 and 64, and between the 64b and 64b. The support shafts 69 and 69 are rotatably inserted into the support holes 68b and 68'b formed at the center thereof in a state in which the support shafts are positioned.

Therefore, the pressure rollers 68 and 68 'are rotatably supported by the roller support arms 63 and 64, and part of the support rollers 63b, 63b, 64b, It protrudes upward from the lower end of 64b.

The two roller support arms 63 and 64 are provided with 24 arm support pieces, most of which are provided in the carriage 53 except for the lower end thereof, with the support parts 67 and 67 overlapping in the front and rear directions. Located between the 56 and 56, the support hole formed in the arm support piece (56), (56) in the insertion hole (67a), (67a) formed in the support portion (67), (67) ( 56a) and 56a are inserted into the support shaft 70 so as to be rotatable, thereby being rotatably supported at the lower end of the carriage 53.

(71) and (71) are substantially cylindrical spring bearing shafts, and flanges 71a and 71a are formed at a position biased at the upper end thereof, and slightly downward from the flanges 71a and 71a. The insertion holes 71b and 71b which penetrate in the direction orthogonal to an axial direction are formed in the biased position.

The spring bearing shafts 71 and 71 are inserted into the spring batch holes 55 and 55 formed in the main portion 54 of the carriage 53 with a slight margin around them, and at the same time, shovels the spring bearing shafts 71 and 71 into the spring arrangement holes 55 and 55. The support pins 72 press-fitted into the insertion holes 57, 57, and 57 formed in the main part 54 in the through holes 71b and 71b are supported by the carriage 53 by being inserted. The recesses 66 formed on the upper ends of the main parts 63a, 64a of the flanges 71a, 71a of the spring receiving shafts 71, 71 and the roller support arms 63, 64 ( The compression springs 73 and 73 are compressed between 66.

Therefore, the force of the rotational force in the counterclockwise rotation direction in FIG. 6 is applied to the roller support arm 63 on the left side by the elastic force of the compression springs 73 and 73, and the roller support arm on the right side ( 64, a force of rotational force in the clockwise direction is applied.

On the opposing surface of the roller supporting arms 63, 64, which the main parts 63a, 64a face each other, a stopper part not shown is projected, and the pressure rollers 68, 68 'are upward. The stopper portion of the roller support arms 63, 64 stops rotation at a constant place by contacting the stopper portions with the opposing surfaces of the main portions 63a, 64a even in a state where the pressure is not pressed toward the surface. have.

(b-6-c) Compression and movement to the stage by pressing roller

The lock on the base portion 10 of the movable frame 28 pushes the movable frame 28 downward slightly while the pressure rollers 68, 68 'are in contact with the upper surface 16a of the stage 16. It takes place at

Therefore, the press rollers 68 and 68 'are pressed against the upper surface 16a of the stage 16 by the elastic force of the compression springs 73 and 73, and also by the reaction force of this pressure contact. Is applied upwards, so that the coupling rods 61a, 61a,... Of the guide rollers 61, 61 are applied. … The guide shafts 35 and 35 are in contact with each other from below.

Then, when the conveying belt 46 is driven as described above, the carriage 53 is moved in the left and right directions so that the pressure rollers 68 and 68 'are driven in a press-contacted state with the upper surface 16a of the stage 16. It is moved along the stage 16.

Then, when the moving block 52 comes to a position (hereinafter referred to as "one unit position in the moving range") in contact with the stopper 34 provided on the left plate 29 of the movable frame 28, The light shielding portion 58a of the non-surface 58 enters between the light emitting element 49 and the light receiving element 50 of the sensor 47 on the left side to emit light irradiated from the light emitting element 49 toward the light receiving element 50. If the moving block 52 comes into contact with the stopper 34 'provided on the right side plate 29' of the movable frame 28 (hereinafter referred to as "the other end position in the moving range"), The light blocking portion 58a enters between the light emitting element 49 and the light receiving element 50 of the sander 48 on the right side to block the light emitted from the light emitting element 49 toward the light receiving element 50. Thus, it is detected that the moving block 52 has come to the position of one end or the other end of the movement range.

Then, when the print operation starts, the motor 40 repeats the forward and reverse rotations alternately and intermittently, thereby causing the movement block 52 to intermittently move both ends in the movement range.

Then, when the moving block 52 comes to the position of both ends in the moving range, the pressure rollers 68, 68 'of the photosensitive film 2 and the color paper 6 in the spill in the width direction Off, it is located on the left and right ends of the upper surface 16a of the stage 16.

(b-7) Print

Thus, the printing operation by the printer 1 configured in this manner is performed as follows, for example.

(b-7-a) Print

When a print operation start command is given, the moving block 52 is moved to one end or the other end of the moving range and is waited at that position, and the photosensitive film 2 is the tension roller 21 and the driven roller 37. ) And the feed roller 20 and the driven roller 36 are driven by a constant pitch, and the exposure surface 2a is exposed by the FOT 27 for each fixed line to form a print film of one image.

Then, after the formation of the print film is completed or before completion, one sheet of colored paper 6 is sent at a predetermined timing, and the tip thereof is sent to a position slightly ahead of the tip of the print film. ) And is fed onto the stage 16.

Then, when the tip of the portion of the photosensitive film 2 made of the print film is on the substantially center portion in the width direction of the upper surface 16a of the stage 16, it is detected by a sensor not shown and the start signal is output. The motor 40 is rotated to move the moving block 52. Therefore, the pressure rollers 68 and 68 'are rotated in the left and right directions while being pressed against the upper surface 16a of the stage 16 by wearing the colored paper 6 and the photosensitive film 2, that is, the colored paper ( 6) and the photosensitive film 2 are scanned in the width direction, whereby a predetermined area (hereinafter referred to as “pressure contact area”) that extends in a band shape in the width direction of the color paper 6 and the photosensitive film 2 is pressed. The rollers 68, 68 'and the upper surface 16a of the stage 16 are pressed against each other.

Then, when the moving block 52 comes to the position of one end or the other end in the movement range, there is an output from the sensor 47 or 48, whereby the rotation of the motor 41 is stopped, and at the same time The colored paper 6 and the photosensitive film 2 are sent, whereby the colored paper 6 and the photosensitive film 2 are driven at a predetermined pitch, that is, a pitch slightly narrower than the width of the pressure-contacting area. The motor 40 is rotated again. Then, when the moving block 52 reaches the other end or one end of the moving range, there is an output from the sensor 48 or 47, and the color paper 6 and the photosensitive film 2 are first moved by a predetermined pitch and then moved again. Block 52 is moved. The printing of the color paper 6 and the photosensitive film 2 and the movement of the moving block 52 are alternately performed.

Thus, each time the pressure rollers 68 and 68 'scan the photosensitive film 2 and the color paper 6 once in the width direction, the pressure-contacting area of the portion of the photosensitive film 2 made of the print film The capsules of the pigment precursors 4 and 4 that are not exposed by the FOT 27 in the film are destroyed, and the pigment precursor material is transferred to the developing surface 6a of the colored paper 6 and colored. As a result, a part of the image is printed on the color paper 6, and such printing is repeatedly performed so that one image is displayed on the color paper 6. As shown in FIG.

Further, since the pressure rollers 68 and 68 'are moved with respect to the photosensitive film 2 and the color paper 6 in the width direction, the pressing force on the stage 16 is, for example, the photosensitive film ( 2) and when the pressing force of 1,000 kg to 1,500 kg is required for the entire pressing contact area of the color paper 6, the strength is sufficient to be 2 to 3 kg.

(b-7-b) Concentration light of pressure welding force between press roller and stage (Figure 1)

The pressure contact force in the contact portion between the pressure rollers 68, 68 'and the stage 16 is dispersed in a direction corresponding to the width direction of the pressure rollers 68, 68' of the contact portion. The individual pigment precursors 4, 4,... Which are formed on the photosensitive film 2 by this, are concentrated at a plurality of points. … The destruction of the unexposure hardened thing is reliably performed.

In other words, as described above, the upper surface 16a of the stage 16 includes grooves 17, 17,... … And stone (18), (18),... … It is formed of the uneven surface arranged at a constant pitch in the width direction of the upper surface 16a, that is, the direction along the width direction of the outer circumferential surfaces 68a, 68'a of the pressure rollers 68, 68 '. The outer circumferential surfaces 68a, 68'a of the pressure rollers 68, 68 'are formed in a plane parallel to the axial direction of the pressure rollers 68, 68', and thus the pressure rollers 68 When 68 'is pressed against the upper surface 16a of the stage 16 at a predetermined pressure, the pressure contact force at the contact portion between the pressure rollers 68, 68' and the stage 16 is increased. (18), (18),... … It concentrates on the multiple positions of the point shape corresponding to the ridges of.

Therefore, even if the pressure contact force between the pressure rollers 68, 68 'and the stage 16 is the same strength, compared with the case where the pressure rollers 68, 68' and the stage 16 are surface-contacted, Pigment precursors (4), (4),. … Since the pressure applied to the strength becomes several times or more, the uncured pigment precursors 4, 4,... … Can destroy the capsule reliably.

When the pressure rollers 68, 68 'and the stage 16 are in surface contact, the postures of the pressure rollers 68, 68' with the stage 16 are not correct or the pressure rollers 68 If the precision of the outer circumferential surfaces 68a, 68'a of the 68'a and the upper surface 16a of the stage 16 does not appear to be quite high, the contact of these contacts is uneven at these contacts, and thus Although the pressure contact between the photosensitive film 2 and the color paper 6 causes nonuniformity in the pressure contact area, in the present invention, the pressure contact force between the pressure rollers 68, 68 'and the stage 16 is wide. Since it concentrates for every contact point distributed in the direction, the press contact bubble uniformity by the above cause does not arise.

Therefore, the pressure-contacting area between the photosensitive film 2 and the color paper 6 can be pressed uniformly over the entire width direction thereof, so that a clean development can be performed in which the development density does not occur.

In this embodiment, since the two pressing rollers 68 and 68 'are pressurized at the same place in sequence, it is possible to further reduce the pressing force required for the pressing roller, and not to be completely destroyed by the first pressing. Since the capsule is completely destroyed by the second press, it is possible to almost completely eliminate the concentration unevenness with the pressure concentration action due to the unevenness formed in the stage 16. In addition, since the pressure applied to one part at a time can be reduced, damage to the photosensitive film or colored paper can be reduced. That is, these distortions, curvature, damage to the end can be eliminated.

(c) deformation of the stage (Figs. 8 and 9)

8 and 9 show a variation 16A of the stage 16. The stage 16A shown in this deformation differs from the stage 16 by dividing the upper surface into a mounting surface on which color paper or the like is placed and an atmospheric surface located on both sides thereof, and the thickness of the color paper or the like between them. It is a point where the said mounting surface is in the position lower than the atmospheric surface by providing the same level | step difference.

Reference numeral 74 is an upper surface of the stage 16A, and the upper surface 74 is located on both sides of the placing surface 74a and the placing surface 74a having a length equal to the width of the color paper 6 in the portion except the both ends. It is divided into air | atmosphere 74b and 74b ', and step | steps 74c and 74c are formed between these mounting surface 74a, and the air | atmosphere 74b, 74b', and a mounting surface The 74a side is positioned lower than the atmospheric surfaces 74b and 74b '. The height of the step 74c is about the same as the thickness of the colored paper 6 and the photosensitive film 2 in the folded state.

And the mounting surface 74a is formed in the grooves 17, 17,. … And projections 18, 18,... … It is formed with the uneven surface which consists of.

Thus, when the moving block 52 comes to the position at both ends in the moving range, the pressure rollers 68, 68 'are separated from the edges of the photosensitive film 2 and the color paper 6, and the stage 16A. Is positioned on the atmospheric surfaces 74b and 74b 'of the substrate, and in this state, the photoresist film 2 and the color paper 6 are raised again, but the photosensitive film 2 and the color paper 6 Since it is located on the mounting surface 74a which is lower by the amount of steps 74c and 74c than the atmospheric surfaces 74b and 74b ', the stacked photosensitive film 2 and the color paper 6 and the atmospheric surface ( 74b) and 74b 'do not have a large step, so the pressure rollers 68 and 68' walk on the side of the photosensitive film 2 or the color paper 6 to damage them, or make noise. There is nothing to happen or do.

(2) Second Embodiment (Figs. 10 and 11)

10 and 11 show a second embodiment 75 of the developing apparatus of the present invention.

The difference between the developing device 75 shown in the second embodiment and the printer 1 is only the uneven state formed on the stage. Therefore, only the stage, the pressure roller, the photosensitive film, and the like are shown in the drawings, and the description is made only for the above difference points, and for the parts that do not differ, the same reference numerals as those used in the first embodiment are attached to the parts of the drawings. The description is omitted. In addition, use of such a code | symbol and abbreviation | omission of description are the same also in 3rd and 4th Example.

Reference numeral 76 denotes a stage, which is elongated in the left-right direction and has a substantially rectangular cross-sectional shape perpendicular to the longitudinal direction.

And minute holes 77, 77,... On the upper surface 76a. … Are formed, and these holes 77, 77,... … Are randomly excreted at intervals of about 100 μm to 200 μm.

And such holes 77, 77,... … Is formed by, for example, etching.

Thus, the upper surface 76a of the stage 76 has the holes 77, 77,... … And these holes 77, 77,... … Other portions 78, 78,... … This uneven surface is formed.

Therefore, when the pressure roller 68 is press-contacted to the upper surface 76a of such a stage 76, the pressure contact force of the contact part between these stage 76 and the pressure roller 68 will be the said hole 77, 77 ),… … The portions that are not formed, that is, the holes 77, 77,... … For each of the convex points, the dye precursors 4, 4,... Of the photosensitive film 2 fitted into the yarns by the stage 76 and the pressure roller 68. … It can reliably destroy one by one that is not hardened by exposure.

(3) Third Embodiment (Fig. 12)

12 shows a third embodiment 79 of the developing apparatus of the present invention. Incidentally, the developing device 79 shown in the third embodiment differs from the printer 1 shown in the first embodiment only by using the stage as the columnar rotation type.

80 is a stage, and this stage 80 is formed in a circumferential shape, and is provided with a pressure receiving portion 80a slightly longer than the width of the color paper 6 and both end faces of the pressure receiving portion 80a. When the shaft portion 80b, 80b protrudes from the center, the shaft portions 80b, 80b are attached to the omitted bearings fixed to the side walls 12, 12 'of the base portion 10. While being rotatably supported, the grooves 17, 17, and the projections 18, like the upper surface 16a of the stage 16 shown in the first embodiment, have the entire recessed surface of the pressure receiving portion 80a. (18), is formed of an uneven surface consisting of.

In addition, when the moving block 52 is at both ends in the moving range, the pressure rollers 68 and 68 'are released from the pressure receiving portion 80a.

And the stage 80 is locked so as not to rotate by the locking means not shown during pressurization by the pressure rollers 68, 68 ', the lock when sending the photosensitive film 2 and the color paper 6 The lock by the means is released.

Therefore, in the developing apparatus 79 according to the third embodiment, when the photosensitive film 2 and the color paper 6 are sent, the stage 80 is moved at the same time as the photosensitive film 2 and the color paper 6 are moved. ) Rotates, so that the friction between the outer circumferential surface of the stage 80 and the photosensitive film 2 or the color paper 6 does not occur, and between the stage 80 of the photosensitive film 2 or the color paper 6 The transfer unevenness due to the friction of the rollers is eliminated, and thus, the occurrence of the phenomenon unevenness due to the transfer wheel work can be prevented.

(4) Fourth Embodiment (Fig. 13)

13 shows a fourth embodiment 81 of the developing apparatus of the present invention. The developing apparatus 81 shown in the fourth embodiment is different from the printer 1 shown in the first embodiment in which the stage is cylindrical, and is different from the stage 80 shown in the third embodiment. The irregularities are different.

That is, 82 is a substantially circumferential stage consisting of the pressure receiving portion 82a, the shaft portions 82b, and 82b, and is supported by the base portion 10 so as to be rotatable. The entire periphery has a number of holes 77, 77,... As the mounting surface of the stage 76 shown in the second embodiment. … This formed uneven surface is formed.

Thus, by the stage 82, the pigment precursors 4, 4,... Of the photosensitive film 2 between the pressure rollers 68, 68 ′ are formed. … When the photosensitive film 2 or the color paper 6 is sent, the stage 82 is rotated integrally with the photosensitive film 2 or the color paper 6, so that the transfer unevenness other than the photosensitive film 2 or the color paper 6 is uneven. Can be prevented.

As apparent from the foregoing, the developing apparatus of the present invention includes a stage and a roller which is rolled in contact with the stage, and develops by pressing the photosensitive material and the developing material between the stage and the roller. It is characterized in that fine irregularities are formed on either the roller contact surface of the stage or the outer circumferential surface of the roller.

Therefore, according to the present invention, since the roller, which is the pressing means for press-contacting the photosensitive material and the developing color material, moves to scan the photosensitive material or the developing color material, the shape of the pressing means and the pressing force required for the pressing means can be significantly reduced. This type of developing device is compact, lightweight, and low cost, and furthermore, it is possible to have a structure which is easy to assemble and repair.

Furthermore, since minute irregularities are formed on the roller contact surface of the stage or the outer circumferential surface of the roller, the pressure contact force at the contact portion between the stage and the roller is concentrated at each contact point between the stage and the roller, thereby developing concentration or color development. This kind is possible because it is possible to widen the contact force between the roller and the stage by the same pressing force so that the clean development without unevenness can be performed and the pressure contact force between the roller and the stage can be concentrated as described above. The developing speed of the developing apparatus can be increased.

In each of the above embodiments, the photosensitive film and the color paper are stacked in this order from the stage side at the same time, so that the unevenness is formed on the roller contact surface of the stage. Although the present invention is superimposed, in order to implement the present invention, the developer and the photosensitive material may be superimposed in this order from the stage side, and minute irregularities may be formed on the outer circumferential surface of the roller. The object of the present invention, which concentrates the pressure contact force at a plurality of points, can be sufficiently achieved.

In the usual embodiment, two rollers were arranged in the direction of movement thereof. However, since the rollers can be pressed twice by pressing the roller once, the same effect of the photosensitive material or the developing color material can be applied. Can be made higher.

Above all, in carrying out the present invention, there may be one press roller, or three or more press rollers may be arranged in the moving direction.

In the present invention, the moving direction of the roller is not limited to the direction orthogonal to the traveling direction of the photosensitive material and the color paper, but may be a direction intersecting with the traveling direction.

Further, in the above embodiment, the present invention forms a print film by exposing a photosensitive film coated with a photosensitive dye precursor, and presses the print film with colored paper to press the image onto the colored paper. Although the present invention is not limited to such an application, the present invention is not limited to such an application, but a developing apparatus using both a photosensitive pigment precursor and a developing material, i.e., a developing apparatus incorporating a photosensitive material developing material or a photosensitive printing toner It can be applied to various developing apparatuses such as a developing apparatus for pressure-fixing the toner in a copying machine using a paper or the like. That is, these developing devices also correspond to developing devices by pressing the photosensitive material and the developing material.

Claims (1)

A developing apparatus comprising a stage and a roller which is rolled in contact with the stage, and developing by pressurizing the photosensitive material and the developing color material between the stage and the roller, either of the roller contact surface of the stage or the outer peripheral surface of the roller. Developing apparatus characterized in that the fine irregularities are formed in the.

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