JPH01138560A - Developing device - Google Patents

Abstract

PURPOSE:To prevent developing paper from damaging by forming a step which is as thick as the developing paper between the mount surface of a stage for the developing paper, etc., and stand-by surfaces on both sides, making the mount surface lower than the stand-by surfaces and sending the developing paper by specific pitch while a roller is positioned on a stand-by surface. CONSTITUTION:The step 8c which is as thick as the developing paper 67, etc., is formed between the mount surface 8a of the stage 7 for the developing paper 67, etc., and the stand-by surfaces 8b and 8b' positioned on both sides, the mount surface 8a is made lower than the stand-by surfaces 8b and 8b', and the developing paper 67, etc., is sent by the specific pitch while the roller 58 is positioned on the stand-by surface 8b. Therefore, when the roller moves from the stand-by surface to the mount surface, the roller is prevented from being caught by the edge of the developing paper. Consequently, the edge of the developing paper is prevented from being damaged by the roller.

Description

[Detailed description of the invention] The developing device of the present invention will be explained according to the following sections.

A. A. Field of industrial use B0 Summary of the invention C1. Prior art a. - Background for boat fishing. An example of a conventional pressure printer [Figs.
Figure] b-1, First example [Figure 11] b-2, Second example [Figure 12] D6 Problems to be solved by the invention [Figures 11 to 1
Figure 4] Means F for solving the E0 problem, Example [Figures 1 to 10] F-1, First embodiment [Figures 1 to 9 Core a, base part, stage [Figures 1 to 9] Fig. 1 to Fig. 4, Fig. 6, Fig. 8 Cob, feed roller, FOT, etc. [Fig. Figure 6, Figure 7] d, Transfer belt, Sennocer [Figures 1 to 4, Figure 6
Figure] e, Moving block [Figures 1 to 6 e-1, Carriage, eaves piece e-2, Roller support arm, Pressure roller [Figures 1, 2, Figures 4 to 6] ] e-2-a, structure e-2-b, support to the carriage e-3, pressure roller contact with the stage and movement f, photosensitive film, color developing paper, etc. [Fig. 1, Fig. 3, Fig. Figure 4, Figure 6, Figure 8] g, Print [Figure 9 g-11 Circuit [Figure 9] g-2, 8 work F-2, Second embodiment [Figure 10] G1 Invention Effects (A, Industrial Application Field) The present invention relates to a novel developing device. Specifically, a photosensitive material comprising a dye precursor that forms a color when combined with a specified developing substance or a color forming substance that itself has color forming properties is encapsulated in microscopic capsules of an exposure-curing type or an exposure-softening type, and a prescribed color developing paper. This relates to a developing device that causes a predetermined image to appear on the color developer paper by pressing the light-sensitive material and the color developer paper into contact with each other using a pressure means, and is a component of the pressure unit for bringing the photosensitive material and the color developer paper into pressure contact. By devising the shape of the stage, this type of developing device can be constructed in a small size and at low cost, and can be developed at high speed with uniform developer density. It is an object of the present invention to provide a new developing device that is free from damage.

(B. Summary of the Invention) The developing device of the present invention is a developing device that develops a predetermined image on the color developer paper by pressing a photosensitive material and a color developer paper into contact with each other at a predetermined pressure using a pressure means. In addition, a roller is provided that rolls in a state that is in pressure contact with the stage with the developer paper in between, and moves in a direction intersecting the running direction of the developer paper, etc. A step corresponding to the thickness of the developer paper, etc. is provided between the standby surfaces located on both sides, so that the placing surface is at a lower position than the standby surface, and while the roller is located on the standby surface, the The colored paper, etc. is fed by a predetermined pitch, and this prevents the roller from damaging the developer paper, etc. when it comes off the side edge of the developer paper, etc. and rides on the developer paper, etc. again. It is possible to configure a small size and low cost, and at the same time, it is possible to perform clean development without unevenness in development density, and it is also possible to perform development at high speed. This is to prevent any damage from occurring.

(C, Prior Art) (a, - Boat Fishing Background) Today, there are various types of developing systems for developing a predetermined image on a predetermined color developing paper. There is a system in which a predetermined image is developed on the developer paper by pressing a material and a predetermined color paper against each other, and such a development system is used in a pressure printer or a pressure fixing copying machine. ing.

For example, the above-mentioned pressure-type printer encloses a dye precursor material that develops color by combining with a predetermined developing material in a tiny capsule that exhibits pressure-resistant and non-destructive properties when exposed to a predetermined light. A positive photographic film is produced by using a photosensitive film coated with a dye precursor of By overlapping the photosensitive film in this state with developer paper coated with a prescribed developing substance and applying pressure, the unexposed capsules are destroyed and the dye precursors in the capsules are released. The image is transferred to color developer paper, so that a predetermined image appears on the color developer paper.

(b. An example of a conventional pressure printer) [Figures 11 and 12] Figures 11 and 12 schematically show different examples a and b of a conventional pressure printer, C is a long photosensitive film, and d is a sheet-type developer paper.

(b-t, first example) [Fig. 11] In Fig. 11, e and f are approximately cylindrical pressure rollers with a length slightly longer than the width of the color developing paper d, and the lower side The pressure roller e is rotatably supported by a support frame (not shown) and rotated by a motor, and the upper pressure roller f
is rotatably supported by a pressure frame (not shown) which is pressed downward by a strong elastic member and is in pressure contact with a lower pressure roller, and the photosensitive film C and the color developer paper d are After being exposed to a predetermined amount of light, they are superimposed on each other and are supplied between pressure rollers e and f.

When the lower pressure roller f rotates, the upper pressure roller e that is in pressure contact with it also rotates, so that the photosensitive film C and the color developer paper d are moved while being pressed against each other, and due to this pressure contact, , the unexposed capsule of the dye precursor in the photosensitive film C is destroyed and the dye precursor encapsulated therein is transferred to the developer paper d, whereby the dye precursor is developed on the developer paper and developed. A predetermined image will be printed on colored paper.

(b-2, second example) [Figure 12 In addition, in Figure 12, g is a stage, and h is a spherical ball contact i rotatably supported at the lower end, and the ball contact i is a stage. The presser is moved back and forth over a distance slightly longer than the width of the developing paper d while being in pressure contact with the upper surface of the color developing paper d.

Therefore, the photosensitive film C and the color developer paper d are supplied onto the stage g in a superimposed state and are run intermittently at a constant pitch.
While the color developer paper d is stopped, the photosensitive film C and the color developer paper d move between both ends of their movement range, and as a result, the photosensitive film C and the color developer paper d form a line-shaped area (hereinafter referred to as " (referred to as "press area") are sequentially pressed and a predetermined image is printed on the color developing paper d.

(D. Problems to be Solved by the Invention) [Figures 11 to 14] According to printer a shown in Figure 11, the printing speed is fast because the printing operation can be performed continuously without any breaks. There are advantages.

However, the two upper and lower pressing rollers e and f require extremely large pressure in order to press the entire strip-shaped pressing area extending in the width direction of the photosensitive film C and the color developing paper d at once. For example, if the pressure rollers e and f are of a size corresponding to A4 size developer paper, the pressure applied by the pressure rollers e and f is 1,000Kg to 1,500K.
g is necessary, and the support frame supporting the upper pressure roller f is provided with an extremely large pressure source capable of applying such a strong pressure, such as a compression spring with an extremely high spring constant.

Therefore, printer a using such pressure rollers e and f requires extremely high mtIi strength in each part, and also uses a motor with a large output or directs the rotational force of the motor to the lower side. Because it is necessary to use a chain or the like for the transmission mechanism that transmits the information to the pressure roller e, the size and weight of the image to be printed are large, the cost is high, and assembly and maintenance are difficult. The problem is that it becomes difficult.

Further, according to the printer b shown in FIG. 12, since the pressurizer, which is the pressurizing means, moves in a manner to scan the photosensitive film C and the color developing paper d, the advantage is that the pressurizing force can be very small. be.

However, since the printing operation is performed by alternating the movement of the presser and the running of the photosensitive film C and developer paper d, there is a problem that the printing speed is slow.

Furthermore, since the contact pressure between the ball contact i of the pressurizer and the stage g is not uniform, there is a problem in that the developed color density becomes uneven. That is, j in FIG. 12(B) shows an example of the pressure distribution curve at the contact portion between the ball contact i and the upper surface of the stage g.As can be clearly seen from this pressure distribution curve j, the ball contact i
The contact pressure between the stage g and the upper surface of the stage g is highest at the center and decreases toward both ends.

Therefore, the pressure in the pressure contact area of the photosensitive film C and the color developer paper d is highest at the center in the width direction (it decreases toward both ends, so that the pressure in the pressure contact area of the dye precursor on the photosensitive film C in the pressure contact area is highest). The amount of destruction and the amount of the dye precursor encapsulated in the capsule transferred to the color developer paper d decreases toward both ends, and the color density on the color developer paper d follows the concentration distribution curve shown in Figure 12 (C). ,k,・
As shown in..., the center is the darkest and it gets thinner towards the ends. For this reason, if the running pitch of the photosensitive film C and the color developer paper d is set to the same pitch as the contact width W between the ball contact i and the color developer paper d, striped density unevenness will appear.

Therefore, if the photosensitive film C and the color developer paper d are run at a pitch such that the scanning trajectories of the pressure rollers overlap by about half in the width direction, the density distribution curve of FIG.
As shown in .

However, when the photosensitive film C and the color developer paper d are run at such a fine pitch, the printing time is approximately doubled, resulting in a problem that the printing speed becomes extremely slow.

Therefore, in order to reduce the pressing force and widen the width of the pressing area between the photosensitive film C and the color developer paper d in one scan, a roller l having a substantially disk shape as shown in FIG. 13 is used. We have considered a method in which the photosensitive film C and the developer paper d are held in pressure contact with the stage g and rolled, so that the photosensitive film C and the developer paper d are brought into pressure contact with each other.

According to the roller 1 having such a disk shape, it is possible to apply pressure to a considerably wider area in one scan than when applying pressure using the ball contact i. Then, when the roller 1 comes off one side edge of the photosensitive film C and the developer paper d, the photosensitive film C and the developer paper d are fed by a predetermined pitch, and then the roller 1 rides on the photosensitive film C and the developer paper d. It moves toward the other side edge, and the photosensitive film C and the color developer paper d are located at the point where it is removed from the other side edge. The roller 1 is fed at a fixed pitch, and then the roller 1 rides on the photosensitive film C and the color developer paper d and moves toward one side edge. Pressure development is performed by repeating these operations.

However, in the case of such an apparatus using stage g and roller 1, as shown in FIG. When moving, color developer paper c, d from the stage surface g'
Because of the difference in thickness, rollers λ may damage the side edges of color developer paper c and d, and roller l may get caught on the side edges of color developer paper c and d and stop. There is. Another problem is that when the roller λ comes off or runs over the side edges of the developer paper c, d, etc., a sound is generated, which results in noise.

(E. Means for Solving the Problems) Therefore, in order to solve the above-mentioned problems, the developing device of the present invention provides a method in which a predetermined photosensitive material and a color developer paper are sandwiched between the color developer paper and the color developer paper, which are pressed against the stage. A roller is provided which rolls in a direction crossing the running direction, and the photosensitive material and the color developing paper are brought into pressure contact by the roller and the stage.
A step corresponding to the thickness of the color developer paper, etc. is provided between the stage's loading surface on which the color developer paper, etc. is placed and the standby surfaces located on both sides of the stage, so that the loading surface is at a lower position than the standby surface. The color developer paper or the like is fed by a predetermined pitch while the roller is located on the standby surface.

Therefore, according to the developing device of the present invention, since the roller, which is the pressure means for bringing the photosensitive material and the color developer paper into pressure contact with each other, moves in a scanning manner with respect to the photosensitive material and the color developer paper, the pressure means is The shape and the pressure required for the pressure means can be made considerably smaller, which allows this type of developing device to be made smaller and lighter and at lower cost. Development can be performed. Moreover, a step corresponding to the thickness of the developer paper, etc. is formed between the mounting surface of the stage and the standby surfaces located on both sides of the stage, so that the mounting surface is located at a lower position than the standby surface. This prevents the roller from getting caught on the side edge of the developer paper, etc. when it moves from the standby surface to the placement surface, so the roller does not damage the side edge of the developer paper, etc. There is no noise generated when the roller comes off or rides on the roller, and accidents such as the roller getting caught on the side edge of the developer paper or the like and stopping are prevented.

(F. Embodiments) [The details of the developing device of the present invention will be explained in accordance with the illustrated embodiments below in FIGS. 1 to 10.

(F-1, First Example) [Figures 1 to 9] Figures 1 to 9 show a first example in which the developing device of the present invention is applied to a printer that uses a long photosensitive film as a photosensitive material.
Example 1 is shown.

(a, base part, stage) [Figures 1 to 4, 6
2 is a base portion of the printer 1, and includes a bottom plate 3 having a rectangular plate shape, and left and right sides of the bottom plate 3 (the left side in FIG. 3 is the left side, and the right side is the right side. The lower side in the figure is the front side, and the upper side is the rear side.

In the following description, when directions are indicated, this direction will be used. ) side walls 4 erected upward from both ends;
．． 4', an axial crosspiece 5 that connects the front end of the side wall 4.4' at an approximately midpoint in the vertical direction, and a back plate 6 that connects the rear end of the side wall 4.4'.

A stage 7 is used to press the photosensitive film and developer paper against each other by sandwiching the photosensitive film and the developer paper between the stage and a pressure roller, which will be described later.

The stage 7 is made of a metal with relatively high hardness, and has a substantially oval shape that is elongated in the left-right direction and whose cross-sectional shape perpendicular to the longitudinal direction is elongated in the vertical direction.
Both ends thereof are fixed to approximately the middle portion of the upper end of the side wall 4.4' in the front-rear direction.

Therefore, the upper surface 8 of the stage 7 is formed so that its central portion forms an arcuate surface that is highest when viewed from the left and right. Note that the radius of curvature of this arcuate surface may be around 10 mm. The upper surface 8 of the stage 7 includes a mounting surface 8a having a length corresponding to the width of a developing paper, etc., which will be described later, excluding both ends, and a waiting surface 8b located on both sides of the mounting surface a. 8b', and steps 8c, 8c are formed between the placing surface 8a and the waiting surfaces 8b, 8b', and the placing surface 8a is at a lower position than the waiting surfaces 8b, 8b''. The height of this step 8C18C corresponds to the thickness of color developer paper, etc., which will be described later, and may be slightly lower than the thickness of color developer paper, etc.

(b, feed roller, FOT, etc.) [Figures 1 to 4] Reference numeral 9 is a feed roller for running the photosensitive film and color developer paper, which will be described later, and is located at a slightly distant position behind the stage 7. A tension roller 10 is disposed at a position slightly below the top surface 8 of the stage 7, and a tension roller 10 is disposed at a position slightly forward of the stage 7 and slightly below the top surface 8 of the stage 7. 9.10 is rotatably supported at both ends by the side wall 4.4', and also includes a paper feed motor 11, such as a step motor, supported on the bottom plate 3 of the base portion 2, and a speed reduction mechanism 12.13. It is rotated clockwise in FIG. 4 at a predetermined timing. The feed roller 9 rotates slightly slower than the tension roller 10, so that the photosensitive film and developer paper, which will be described later, are slightly tensioned between these rollers 9 and 10.

Reference numeral 14 denotes a lock element for locking a movable frame, which will be described later, which is rotatably supported by the base part 2, and whose left and right ends are rotatably supported by the pillar 5, and , lock claws 14a, 1 at the upper ends of both left and right ends.
4a is formed.

Reference numeral 15 denotes a light source (hereinafter referred to as rFOTJ) consisting of a bundle of many optical fibers for exposing a photosensitive film to be described later in a pattern according to a predetermined image signal.This FOT 15 is shown only in FIG. ), and is fixed to the base portion 2 with its light-receiving surface 15a facing rearward.

(c, lJ frame, guide shaft, driven roller) [Figures 1 to 4, Figures 6 and 7] 16 is a movable frame, which has approximately the same size as the side wall 4.4' of the base part 2. and two side plates 17. which are spaced apart in the left-right direction and opposed in parallel.
17' and the upper ends of these side plates 17, 17' are connected to each other, and the lower end of the rear end of the side plates 17, 17' is connected to the side wall 20 of the base part 2 by a support shaft 20, 20.
．． It is rotatably supported at the upper end of the rear end of 4'.

A locking pin 21.21 is protruded from the corner of the inner surface of the side plate 17.17' where the front edge and the lower edge intersect. With the pressure roller in contact with the upper surface 8 of the stage 7, the lock claws 14a, 14a of the lock element 14 are engaged with the lock pin 21.21 from above, thereby locking the base part 2. be done.

Reference numeral 22.22 denotes a guide shaft having a cylindrical shape elongated in the left-right direction, and is arranged above the stage 7 at a predetermined distance from each other in the front-rear direction.
It is fixed at 17'.

Reference numerals 23 and 24 are driven rollers that form a pair with the above-mentioned feed roller 9 and tension roller 10, respectively, and support arms 25, 25, . The movable frame 16 is rotatably supported at the rotating end of the base portion 2, and is disposed at a position corresponding to each of the rollers 9 and 10 from the road.
When locked against the support arms 25.25,...
The springs 26, 26, . The torsion springs 26, 26, . . . have their coil portions 28a, 26a, . Fitted onto the shaft 27.27, one arm 2
6b, 26b1... are support arms 25.25,...
・ engages with the upper edge near the rotation end of the other arm 26c, 26
c, ...- is fixed to the side plate 17.17' of the receiving part 2
8.28, . . . , thereby applying a moving force to the support arms 25, 25, .

(d, transfer belt, sensor) [Figures 1 to 4, and 6] 29 is a motor, and the side plate 1 on the left side of the movable frame 16
The drive pulley 31 is supported by a mounting plate 30 that protrudes leftward from the rotary shaft 29a of the drive pulley 29a.

Further, 32 is a driven pulley, and a support plate 33 protrudes toward the right side from the right side plate 17' of the movable frame 16.
It is rotatably supported by a support shaft 34 fixed to.

Incidentally, the driving pulley 31 and the driven pulley 32 are arranged at a slightly higher position than the guide shaft 22.22.

An endless transfer belt 35 is stretched between the driving pulley 31 and the driven pulley 32.

A carriage of a moving block, which will be described later, is connected to the transfer belt 35, and the motor 29 rotates clockwise in FIG. 3 (hereinafter referred to as "normal rotation") when moving the moving block to the right. ) To move the moving block to the left, rotate it counterclockwise (
Hereinafter, this will be referred to as "reversal." ).

36 and 37 are sensors for detecting that the moving block, which will be described later, has reached the end of its moving range;
A pair of light emitting elements 38.38 facing each other with a predetermined interval
and light receiving elements 39 and 39, and these light emitting elements 3
The light receiving elements 8.38 and the light receiving elements 39.39 are supported by support pieces 40.40 fixed to both left and right ends of the connecting plate 18 so as to face each other while being separated from each other in the front-rear direction.

(8, Moving block) [Figures 1 to 6] 41 is a moving block, which includes a carriage supported movably in the left and right direction on the guide shaft 22, 22, and a carriage rotatably supported by the carriage. It consists of two roller support arms, two pressure rollers rotatably supported by the roller support arms, and a compression spring for constantly biasing the roller support arms downward.

(e-1, carriage, eaves piece) 42 is a carriage.

43 is a main part of the carriage 42, and the main part 43 has a substantially square shape when viewed from above, and has a block shape with a thickness half the height of the movable frame 16.
The front and rear ends of the upper surface are slightly higher than the remaining parts, and two spring placement holes 44, 44 are formed at the center in the front and back direction and are spaced apart from each other in the left and right direction. ing.

Reference numeral 45.45 denotes an arm support piece that protrudes downward from a position on the lower surface of the main portion 43 that sandwiches the spring arrangement hole 44.44 from both the front and back sides, and the arm support piece 45.4
A support hole 46.46 is formed approximately in the middle of the arm support piece 5 in the left-right direction, and extends through the arm support piece 45.45 in the thickness direction, that is, in the front-rear direction.

Reference numeral 47.47.47 is an insertion hole that penetrates the main portion 43 in the horizontal direction approximately at the middle in the height direction, and this insertion hole 47.47.47 extends across the spring arrangement hole 44.44. There is.

Reference numerals 48 and 48' designate eaves pieces that have a rectangular shape that is long in the left and right direction when viewed from above, and more than half of these eaves pieces 48 and 48' in the width direction extend forward and backward from the top surface of the main portion 43 of the carriage 42. It is fixed to the carriage 42 in a protruding position, and has a protrusion 49.49 on its lower surface.
Further, the front eave piece 48 is integrally formed with a light shielding part 48a projecting upward from its front edge.

50.50, . . . are support shafts protruding from two positions spaced apart in the left-right direction on both the front and rear surfaces of the main part 43 of the carriage, and the support shafts 50.50.・・・
・The guided rollers 51.51, . . . are rotatably supported, and the stiff guided rollers 51.51, .
・A deep engagement groove 51 having a V-shaped cross-section on the outer peripheral surface.
a, 51a1... are formed.

Then, the carriage 42 is guided by its guided roller 51.5.
1. The engagement grooves 51a, 51a1... are rotatably engaged with the guide shaft 22.22 provided on the movable frame 16 from below, and are formed on the eaves piece 48.48'. The protrusions 49.49 face the guide shaft 22.22 from above with a slight distance between them, so that they are supported by the guide shaft 22.22 so as to be movable in the left and right direction. A connecting piece 52 fixed to is connected to the transfer belt 35.

Therefore, the carriage 42 is moved in the left-right direction as the transfer belt 35 runs.

In addition, when the movable frame 16 is locked with respect to the base part 2, the carriage 42 is urged upward by a reaction force generated when a pressure roller, which will be described later, comes into pressure contact with the stage 7, and thereby the guided roller 51.
51, . . . come into elastic contact with the guide shafts 22, 22 from below to define the position of the carriage 42 in the vertical direction.

(e-2, roller support arm, pressure roller) [Figures 1, 2, 4 to 6 (e-2-a, structure) 53 and 54 are roller support arms .

53a and 54a are the main parts of the roller support arms 53 and 54, and support pieces 53b, 53b, 54b, and 54b, which are parallel to each other and are opposed to each other, protrude downward from both front and rear ends thereof, and these support pieces 53b , 53b, 54b, 54
An insertion hole 55 that penetrates these in the front-back direction is located approximately at the center of b.
．． 55, . . . are formed, and the main portion 53a154a
A shallow circular recess 56.56 is formed in the upper surface of the holder.

Further, the support portion 57 that protrudes rightward from the rear half of the right side of the main portion 53a of the left roller support arm 53 is also located on the front side of the left side of the main portion 54a of the right roller support arm 54. Support portion 57 protruding from the road half to the left
are formed integrally with each other, and these support portions 57.
Insertion holes 57a, 57a are formed passing through 57 in the front-rear direction. In addition, the tip surface 5 of these support portions 57.57
7b and 57b are circular arc surfaces extending in the vertical direction.

58 and 58' are pressure rollers, and these pressure rollers 5
8.58' has a thickness of about 1/4 of the width of the stage 7,
For example, it has a disc shape with a thickness of about 4 mm, and
It is formed of a metal with high hardness, and its outer peripheral surface 58
a, 58'a, the entire area in the width direction is the pressure roller 5.
8.58' is formed on a surface extending parallel to the axis.

Moreover, 59.59 is a support shaft press-fitted into the insertion hole 55.55 formed in the support piece 53b, 53b, 54b, 54b of the roller support arm 53.54, and the pressure roller 58.58 ' are support holes 58b and 5 formed in the center of the roller support arms 53 and 54, located between the support pieces 53b and 53b and between 54b and 54b.
The support @59.59 is rotatably inserted through 8'b.

Therefore, the pressure rollers 58, 58' are
3.54, and a portion thereof protrudes downward from the lower ends of the support pieces 53b, 53b154b, and 54b.

(e-2-b, Support to the Carriage) The two roller support arms 53 and 54 have their support parts 57 and 54 overlapped in the front and back direction, and most of them except for their lower ends are attached to the carriage. An insertion hole 57 a s 57 located between the two arm support pieces 45 and 45 provided in 42 and formed in the support part 57.57
A support shaft 60.60 is rotatably inserted through a support hole 46.46 formed in the arm support piece 45.45, and is thereby rotatably supported by the lower end of the carriage 42. Ru.

Reference numeral 61.61 is a spring bearing shaft having a substantially cylindrical shape, and flanges 61a, 61a are formed near the upper end thereof, and a direction perpendicular to the axial direction is formed at a position slightly downward from the flanges 61a, 61a. The insertion holes 61b, 61b penetrated through the
or is formed.

The spring bearing shaft 61.61 is pushed through the spring arrangement hole 44.44 formed in the main part 43 of the carriage 42 with a slight margin around it, and the insertion holes 61b, 61b The insertion hole 4 formed in the main part 43
7.47.47 is supported by the carriage 42 by being inserted through the support bin 62 that is press-fitted, and
A compression spring 63.63 is compressed between the flanges 61a, 61a of the spring support φ61.61 and a recess 56.56 formed in the upper end surface of the main portion 53a154a of the roller support arm 53.54. .

Therefore, due to the elastic force of the compression springs 63, 63, the left roller support arm 53 is biased with rotational force in the counterclockwise direction in FIG. 6, and the right roller support arm 54 is biased in the clockwise direction. The rotational force will be energized.

In addition, the main parts 53a and 54a of the roller support arms 53 and 54
A portion of a stopper (not shown) is protruded from the opposing surfaces of the main portion 53a when the pressure rollers 58, 58' are not pressed relatively upward.
, 54a and a portion of this stopper, the rotation of the roller support arms 53, 54 due to the rotational force is prevented at a certain point.

(e-3, Pressing and moving the pressure roller to the stage) The movable frame 16 is locked to the base portion 2 by moving the movable frame 16 from the state where the pressure rollers 58 and 58' are in contact with the upper surface 8 of the stage 7. It is done when you push down on the bottom of the ring.

Therefore, the pressure roller 58, 58' is compressed by the compression spring 63.
．． The carriage 42 is pressed against the stage 7 by the elastic force of the roller 63, and the carriage 42 is urged upward by the reaction force of this pressure.
1.51 comes into elastic contact with the guide shaft 22.22 from below.

As described above, when the transfer belt 35 runs, the carriage 42 is moved in the left-right direction, so the pressure rollers 58, 58' roll along the stage 7 while being in pressure contact with the upper surface 8 of the stage 7. It will be moved.

Note that the contact of the pressure roller 58, 58' with the mounting surface 8a of the upper surface 8 of the stage 7 is such that the center portion in the width direction of the outer peripheral surfaces 58a, 58'a of the pressure roller 58, 58' is placed on the stage 7. This is done in a state facing the top 8d of the placing surface 8a.

When the moving block 41 comes to a position close to the left side plate 17 of the movable frame 16 (hereinafter referred to as "the position at one end of the moving range"), the light shielding part 48a of the front eaves piece 48 is closed.
The moving block 41 enters between the light emitting element 38 and the light receiving element 39 of the left sensor 36 and blocks the light emitted from the light emitting element 38 toward the light receiving element 39. ' (hereinafter referred to as the "other end position in the movement range"), the light shielding part 48a enters between the light emitting element 38 and the light receiving element 39 of the right sensor 37 and The light emitted from the light emitting element 38 toward the light receiving element 39 is blocked, thereby detecting that the moving block 41 has reached one end position or the other end position in the moving range. .

When the printing operation starts, the motor 29 rotates forward and reverse alternately and intermittently, thereby
The moving block 41 will intermittently move between both ends of its B range.

(f, photosensitive film, developer paper, etc.) [Figures 1, 3, 4, 6, and 8 The roller 4 stores a long photosensitive film 65 wound into a roll. The film cassette (shown only in FIG. 4) is attached to the rear end of the lower end of the base part 2 with its axis extending along the left-right direction and with the film outlet 64a facing upward. I'm nestling.

After the photosensitive film 65 is pulled out from the film cassette 64, it is attached to a film guide 66 (shown only in FIG. 4) and extends forward from there. 24 and between the drive roller 9 and the driven roller 23 to be taken up on a take-up spool (not shown), and at a position between the film cassette 64 and the film guide 66, the FOT 15 The part between the part sandwiched between the tension roller 10 and the driven roller 24 and the part sandwiched between the drive roller 9 and the driven roller 23 is the mounting surface 8 of the stage 7.
being touched by a.

The photosensitive film 65 is made by coating one side 65a (hereinafter referred to as the "exposed surface") of a suitable film base material with a countless number of photosensitive dye precursors, and the dye precursors are cured by exposure. A dye precursor substance that combines with a specific developing substance to develop a specific color is enclosed within a mold, that is, a microscopic capsule that becomes pressure-resistant and non-destructive when irradiated with ultraviolet light of a specific wavelength. It is made up of

67, 67, . . . are color developer papers on which images are printed, and are formed into a substantially rectangular single sheet shape having a width slightly larger than the width of the photosensitive film 65, and one side of the paper 67, 67, .
A developing substance that combines with the dye precursor of the dye precursor to develop a predetermined color is applied to 7a (hereinafter referred to as "development surface").

68 is a paper feed tray in which a large number of the developer papers 67, 67, . . . are stored, and 69 is a paper feed roller (these are shown only in FIG. 67, 67, . . . are supplied one by one between the tension roller 10 and the driven roller 24 at a predetermined timing.

70 is a paper discharge guide plate.

Note that when the moving block 41 reaches both ends of its moving range, the pressure rollers 58 and 58' come off the side edges in the width direction of the photosensitive film 65 and the color developing paper 67, and move onto the standby surface 8b or 8b of the stage 7. 'located above.

(g. Print) [FIG. 9] Therefore, the printing operation by the printer 1 configured as described above is performed, for example, as follows.

(g-1, Circuit) [FIG. 9] FIG. 9 shows a circuit for controlling the drive of the paper feed motor 11 and carriage feed motor 29 of the printer 1.

71L and 71R are mono multivibrators, and 71
The signal from the sensor 36 is input to L, and the signal from the sensor 37 is input to 71R.
Every time the "1" signal from 37 is input, a pulse of a predetermined width is output. And these mono multivibrator 71L.

The drive time of the paper feed motor 11 is determined by the width of the pulse output from 71R. This driving time is the time required to feed the photosensitive film 65 and color developing paper 67 one predetermined pitch.

72 is an OR circuit, and the mono multivibrator 7
The outputs of 1L and 71R are inputted, and the outputs are inputted to the drive circuit 73 of the paper feed motor 11. The drive circuit 73 drives the paper feed motor 11 to which the pulses are output from the mono-multivibrators 71L and 71R.

The above sensors 36.37 have their light emitting elements 38.38
When the light-receiving element 39.39 is blocked by the light-shielding part 48a of the eaves piece 48 supported by the carriage 42, the signal becomes "1".
When the light emitting element 38, 38 and the light receiving element 39, 39 are not disconnected, a signal "0" is output.

74 is an OR circuit to which the outputs of the sensors 36 and 37 are input, and the output of the OR circuit 74 is input to a flip-flop 75.

Reference numeral 76 denotes a drive circuit for driving the carriage feed motor 29, into which the output of the flip-flop 75 is input, and rotates forward or reverse depending on the polarity of the output of the flip-flop 75. That is, the flip-flop 75 is connected to the OR circuit 74.
Each time the output "1" is input, outputs of positive and negative polarity are alternately output. Further, a start/stop signal is input to this flip-flop 75,
If the start signal that is output when printer 1 enters the print ready state is input, it will output, but if printer 1 is not in the print ready state and the start signal is not input manually, it will not output. There is.

Further, the output of the OR circuit 72 is also manually inputted to the drive circuit 76 of the carriage feed motor 29, and when a "1" signal from the OR circuit 72 is input, the signal is inputted manually while the signal is inputted manually. The motor 29 is no longer driven.

(g-2, operation) When the print operation start command is issued, the movement block 41
is moved to one end or the other end of its movement range and made to wait at that position, and the photosensitive film 65 is run at a constant pitch by the tension roller 10, the driven roller 24, the drive roller 9, and the driven roller 23, Further, the exposed surface 65a is exposed by the FOT 15 for each predetermined line to form a print film of one image.

Further, at a predetermined timing after or before the formation of the photographic film is completed, a sheet of color developer paper 67 is sent out with its leading edge positioned slightly ahead of the leading edge of the photographic film, and the photosensitive film 67 The images are superimposed on each other and supplied onto the stage 7.

When the leading edge of the portion of the photosensitive film 65 that has become the printing film reaches the top 8d of the mounting surface 8a of the stage 7, it is detected by a sensor (not shown) and a start signal is output, and the motor 29 rotates to move the moving block 41. Therefore, the pressure rollers 58 and 58' are rolled in the left-right direction while being in pressure contact with the mounting surface 8a of the stage 7° with the developer paper 67 and the photosensitive film 65 in between.
As a result, a predetermined area (hereinafter referred to as a "pressing area") extending in the width direction of the developing paper 67 and the photosensitive film 65 is scanned in the width direction by the pressure roller 58.
．． 58' and the mounting surface 8a of the stage 7 are pressed against each other.

Note that when the moving block 41 comes to the standby surface 8b or 8b' at one end or the other end of the moving range, the sensor 36
Or, there is an output from 37, and the output polarity of flip-flop 75 is inverted. However, at the same time, the output of the OR circuit 72 is input to the drive circuit 76, so the carriage feed motor 29 stops. On the other hand, when there is an output from the sensor 36 or 37, the mono multivibrator 71L
Alternatively, a pulse signal with a predetermined width is output from 71R, and the developer paper 67 and the photosensitive film 65 are fed for a time determined by the pulse width, whereby the developer paper 67 and the photosensitive film 65 are arranged at a predetermined pitch, that is, It travels at a pitch slightly narrower than the width of the pressure contact area, and when this travel is completed,
Since the input from the OR circuit 72 to the drive circuit 76 is eliminated, the motor 29 is rotated. When the 8-block 41 reaches the other end or one end of the moving range, there is an output from the sensor 37 or 36, and first, the color developer paper 67
．． After the block 65 has been fed a predetermined pitch, the moving block 41 is moved again.

The running of the developing paper 67 and the photosensitive film 65 and the movement of the moving block 41 are alternately performed.

Thus, the pressure rollers 58 and 58' are pressed against the photosensitive film 65.
Each time the developer paper 67 is scanned once in the width direction, the unexposed dye precursor capsules are destroyed by the FOT 15 in the pressed area of the portion of the photosensitive film 65 that is to be used as a printing film, and the dye precursor is released. It is transferred to the developing surface 67a of the developer paper 67 and develops color, and as a result, a part of the predetermined image is printed on the developer paper 67. By repeating such printing, one image is created. This will appear on the color developer paper 67.

Since the pressure rollers 58 and 58' are moved so as to scan the photosensitive film 65 and the developer paper 67 in the width direction thereof, the pressure applied to the stage 7 is, for example, applied to the photosensitive film 65 and the developer paper 67. Assuming that a pressing force of 1,000 kg to 1.500 kg is required for the entire press-contact area, a strength of about 2 to 3 kg will suffice.

In addition, when the pressure rollers 58, 58' come off the side edges of the photosensitive film 65 and developer paper 67 and reach the standby surfaces 8b, 8b'' and then ride on the photosensitive film 65 and developer paper 67 again, Since the film 65 and developer paper 67 are located on the mounting surface 8a which is lower than the standby surfaces 8b and 8b' by the steps 8c and 8c, the stacked photosensitive film 65 and developer paper 67 and the standby surface 8b , 8b', and therefore the pressure rollers 58, 48'
The photosensitive film 65 and color developer paper 67 are prevented from getting caught on the side edges thereof, damaging them, and generating noise.
Moreover, the pressure rollers 58, 58' will not be stopped by getting caught on the side edges of the photosensitive film 65 or the color developing paper 67.

In this embodiment, since the two pressure rollers 58 and 58' sequentially press the same area, it is possible to further reduce the pressing force, and the -th pressurization The capsules that were not completely destroyed in the second pressurization will be completely destroyed, and density unevenness can be almost completely eliminated. Furthermore, since the pressure applied to one part can be reduced, damage to the photosensitive material or color developing paper can be reduced. That is, these collapses,
Waviness, damage to the edges, etc. can be eliminated.

(F-2, Second Embodiment) [Fig. 10] Fig. 10 shows a second embodiment 77 of the developing device of the present invention.

The developing device 77 shown in this second embodiment differs from the printer 1 only in the structure of the stage. Therefore, only the stage and pressure roller are shown in the drawings.

The stage 78 has a cylindrical shape, and its center is rotatably supported by a support shaft 79 supported by a base portion.

And, this stage 78 is a pressure roller 58.58'
During the pressurization, a locking means (not shown) locks the film against rotation, and the locking means releases the locking means when feeding the photosensitive film 65 and color developing paper 67.

The central portion of the outer circumferential surface of the stage 78 corresponding to the width of the paper such as developer paper is used as a placement surface 80a, and both sides thereof are used as standby surfaces 80b and 80b'. Then, the mounting surface 8
A developer paper or the like 67 is placed between 0a and the standby surfaces 80b and 80b'.
．． Steps 80c, 80c corresponding to the thickness of 65 are formed.

Therefore, in the developing device 77 according to the second embodiment, when the photosensitive film 65 and the color developer paper 67 are fed, the stage 78 rotates as the photosensitive film 65 and the color developer paper 67 move. Friction does not occur between the placement surface 80a and the photosensitive film 65 or the color developer paper 67, and uneven feeding caused by friction between the photosensitive film 65 or the color developer paper 67 and the stage can be prevented.

(G. Effects of the Invention) As is clear from the above description, the developing device of the present invention allows the photosensitive material and the developing paper to run on the stage while being in contact with each other, and also to move in a direction intersecting the running direction. A developing device that rolls a roller that presses the photosensitive material and developer paper against the stage, and includes a mounting surface on which the developer paper, etc. of the stage is placed, and a standby surface located on both sides thereof. A step corresponding to the thickness of the developer paper, etc. is provided between the rollers so that the mounting surface is lower than the standby surface, and the developer paper, etc. is fed by a predetermined pitch while the roller is located on the standby surface. It is characterized by what it did.

Therefore, according to the developing device of the present invention, since the roller, which is the pressure means for bringing the photosensitive material and the color developer paper into pressure contact with each other, moves in a scanning manner with respect to the photosensitive material and the color developer paper, the pressure means is The shape and the pressure force required for the pressure means can be made considerably small, which allows this type of developing device to be made small, lightweight, and low cost, and also allows for uniform development density. You can perform strange development. Moreover, a step corresponding to the thickness of the developer paper, etc. is formed between the mounting surface of the stage and the standby surfaces located on both sides of the stage, so that the mounting surface is located at a lower position than the standby surface. This prevents the roller from getting caught on the side edge of the developer paper, etc. when it moves from the standby surface to the placement surface, so the roller does not damage the side edge of the developer paper, etc. There is no noise generated when the roller comes off or rides on the roller, and accidents such as the roller getting caught on the side edge of the developer paper or the like and stopping are prevented.

Note that the difference in level between the mounting surface and the standby surface of the stage in the present invention does not have to be exactly the same as the thickness of the color developer paper, etc., and may be slightly larger or larger as long as it is close to the thickness of the color developer paper, etc. On the other hand, even if the roller is small, the purpose of the present invention, which is to prevent the roller from getting caught on the color developer paper etc. when the roller rides on the color developer paper etc. again, can be sufficiently achieved.

Further, in the first embodiment, two rollers are arranged in the direction of movement, but if this is done, one roller can be arranged in the direction of movement.
Since the same part of the photosensitive material or the developing paper can be pressed twice in the same manner as the rotation, the pressing effect by the roller can be further enhanced.

However, when carrying out the present invention, the number of pressure rollers may be one, or three or more may be arranged in the moving direction.

Further, in the present invention, the moving direction of the roller is not limited to the direction perpendicular to the running direction of the photosensitive material and color developing paper, but may be a direction oblique to the above running direction.

Furthermore, in the above-mentioned embodiments, the present invention is applied by exposing a photosensitive film coated with a photosensitive dye precursor to form a printing film, and by overlaying this printing film with developer paper and applying pressure. Although the above-mentioned image is applied to a printer in which images are developed on the developer paper, the present invention is not limited to such an example of application, and can be applied to a printer in which both a photosensitive dye precursor and a developing substance are provided. A developing device that develops a predetermined image using paper, that is, a developing paper integrated with a photosensitive material developing material, or
The present invention can be applied to various developing devices such as a developing device for pressure-fixing the toner to copy paper in a copying machine using photosensitive printing toner. In other words, these developing devices also fall under the category of developing devices that run a photosensitive material and a developing paper while bringing them into contact with each other on a stage.

[Brief explanation of the drawing]

1 to 9 show a first embodiment in which the developing device of the present invention is applied to a pressure-type printer. The figure is a front view,
Fig. 3 is a plan view, Fig. 4 is an enlarged cross-sectional view taken along line IV-IV in Fig. 2, Fig. 5 is an enlarged perspective view with a part cut away and showing the main parts exploded, and Fig. 6. is VI-VI in Figure 1
FIG. 7 is a perspective view of the main parts showing the support structure of a part of the feeding mechanism for color developing paper, etc. FIG. 8 is an enlarged front view of the main parts showing the operation, and FIG. 9 is an enlarged sectional view taken along the line. is a circuit diagram, FIG. 10 shows a second embodiment of the developing device of the present invention, (A) is an enlarged side view of the main parts, (B) is an enlarged front view of the main parts, and FIG. 11 is a conventional one. 1 is a schematic perspective view showing an example of a pressure-type developing device of
2 shows another example of a conventional pressure-type developing device, in which (A) is a schematic perspective view, (B) is an enlarged side view of the main part, and (C) and (D) are pressurizers. Figure 13 is a side view of the main parts of an example of a draft developing device, and Figure 14 is a diagram showing the main points of the problem. It is an enlarged front view of the section. Explanation of symbols 1... Developing device, 7... Stage, 8a...
Storage surface, 8b, 8b'... Standby surface, 8c... Step, 58.58'... Roller, 65... Photosensitive material, 67... Color developer paper, 77...
・Developing device, 78...Stage, 80a...Placement surface, 80b, 80b''...Standby surface, 80c...Step Applicant Sony Corporation 7 Stage 58.58'・Roller 8a
lll Screen 6 Figure 8C Enlarged front view of the step base Figure 8 co Ll-, Tonori cIl)coto

Claims (1)

[Claims] A developing device in which a photosensitive material and a developer paper are run on a stage while being in contact with each other, and a roller that moves in a direction intersecting the running direction is rolled with the photosensitive material and developer paper sandwiched between them and in pressure contact with the stage. A step corresponding to the thickness of the developer paper, etc. is provided between the stage's loading surface on which the color developer paper, etc. is placed and the standby surfaces located on both sides of the stage, so that the loading surface is lower than the standby surface. A developing device characterized in that the developer paper or the like is fed at a predetermined pitch while the roller is located on the standby surface.