JP2001022003A - Photographic processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform exposure without causing exposure irregularity in the midst of exposure whatever length the length of photographic paper is. SOLUTION: This photographic processing device is equipped with an exposure part 22 exposing the photographic paper 21 while carrying it. In the device, a carrying mechanism 3 equipped with a guide member 4 disposed along a carrying path 10 so as to hold both surface sides of ejected photographic paper 21, and a pair of moving rollers 51 and 52 capable of moving back and forth along the member 4 and press-contacting and separating is disposed on the ejection side of the exposure part. The rollers 51 and 52 are moved in a separate state by following the movement of the leading edge of the paper 21 in the carrying direction thereof ejected from the exposure part 22, and brought into press-contact with the leading edge side of the paper 21 guided by the member 4 so as to move the paper 21 to the terminal part of the member 4 when the exposure of the paper 21 is finished.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a photographic processing apparatus having an exposure section for performing exposure while transporting photographic paper.

[0002]

2. Description of the Related Art In general, when a digitized image or the like is printed on photographic paper, there is a photographic processing method in which so-called line exposure is performed in which the photographic paper is exposed while being transported.

As shown in FIG. 9, a photographic processing apparatus for performing this line exposure includes a pair of a first transport roller B1 for exposure and a second transport roller B2 for exposure at an entrance side and an exit side of an exposure section A, respectively. The first transport roller B1 for exposure and the second transport roller B2 for exposure are composed of a drive roller C and a driven roller D that follows the drive roller C.
Are pressed or separated from the drive roller C. In addition, the first transport roller for exposure B1 and the second transport roller for exposure B2 are configured such that when one of the rollers is in a pressure contact state, the other roller is separated.

The photographic paper P sent to the exposure section A is exposed while being conveyed. First, the photographic paper P is conveyed while being nipped by the first conveying roller B1 for exposure on the entrance side. Passes through the line exposure head A1, exposure of the printing paper P from the line exposure head A1 is started.
Then, when the leading end of the photographic paper P reaches the second transport roller B2 for exposure on the exit side, the first transport roller B1 for exposure is used.
Are separated from each other, and the driven roller D of the second transport roller for exposure B2 is pressed against the second transport roller B2 for exposure, so that the photographic paper P is transported while being nipped by the second transport roller B2 for exposure.

Next, the photographic paper P discharged from the second exposure transport roller B2 is transported to the developing section by the transport mechanism E disposed on the discharge side of the exposure section A. The transport mechanism E includes a pair of pressing rollers F including a driving roller F1, a driven roller F2 pressing and separating from the driving roller F1, and a pair of pressing rollers F disposed on the discharge side of the pressing roller F. And a conveyor belt G. The conveyor belt G is disposed such that the opposing surfaces of the endless belts G1 and G1 are pressed against each other.

According to the transport mechanism E, in the case of photographic paper of a predetermined normal print size, the photographic paper P reaches the pressure roller F after the exposure of the photographic paper P is completed. The exposed photographic paper P that has reached the pressing roller F is conveyed to the transport belt G while being pinched by the pressing roller F, and the photographic paper P is sent to the developing unit by the transport belt G. I have.

In the case of a size larger than the normal print size, the photographic paper P passes through the pressure roller F in a separated state, is sent to the conveyor belt G, and enters between the pressed endless belts. After the entry, the driving roller F1 of the pressing roller F and the driven roller F2 are pressed against each other, so that the photographic paper P is sent to the developing processing section while being sandwiched between the pressing roller F and the transport belt G. Has become.

[0008]

However, in the photographic processing apparatus described above, in the case of the normal print size, the printing paper P is nipped by the pressing roller F after the exposure is completed.
Even if a load fluctuation occurs when the photographic paper P is nipped by the pressure roller F, the exposure is not affected. However, in the case of a size larger than the normal print size, the transport belt G is exposed during the exposure.
And the pressing roller F presses during exposure to hold the photographic paper. Therefore, when the photographic paper P enters between the transport belts G and when the pressing roller F At the time of pressing, the load on the photographic paper P fluctuates, which causes a problem that the exposure unevenness occurs on the photographic paper P.

Therefore, in the case of a size larger than the normal print size, as a method of eliminating the exposure unevenness, the entire conveyor belt is moved up and down so that a pair of endless belts are pressed against and separated from each other. Is to keep the conveyor belt in a separated state, and control so that the conveyor belt is pressed after the exposure is completed, or eliminate the conveyor belt and arrange a number of pressing rollers, and during the exposure, It is conceivable to leave all the pressing rollers pressed when the exposure of the photographic paper is completed by leaving the pressing rollers in the separated state.
There is a problem that the configuration is complicated and the cost is high.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and is directed to a photographic processing apparatus capable of performing exposure without exposure unevenness during exposure regardless of the length of the photographic paper. The purpose is to provide.

[0011]

According to one aspect of the present invention, there is provided a photographic processing apparatus having an exposure unit for performing exposure while transporting photographic paper. A guide member disposed along the transport path so as to sandwich both sides of the discharged photographic paper, and a pair of movable rollers capable of moving back and forth along the guide member, and being capable of pressing and separating. A transfer mechanism is provided, and the moving roller is moved in a separated state by following the movement of the leading end of the photographic paper discharged from the exposure unit in the transport direction, and when the exposure of the photographic paper is completed, the guide member is used. The photographic paper is brought into pressure contact with the leading end side of the photographic paper to be guided to move to the end of the guide member.

The invention described in claim 2 is the first invention.
In the invention described in the above, the moving roller is driven to rotate in a direction in which the photographic paper is discharged when the moving roller reaches the terminal end of the guide member.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing the configuration of a printer unit in a photographic processing apparatus. A driving roller 11 is driven to rotate by a driving motor, and is elastically pressed against a conveying surface of the driving roller 11. Driven roller 12 that rotates
The photographic paper 21 which is a photographic photosensitive material is transported by a plurality of transport rollers 1 composed of the following. An exposure unit 22 and a printing unit 23 are provided along the transport path 10.

Further, the photographic processing apparatus is provided with two paper magazines 24, 24, and furthermore, a cutting device for cutting the photographic paper 21 carried out of the two paper magazines 24, 24 into a predetermined size. Parts 25, 2
5, the paper magazines 24, 2 in the transport path 10
There are two places near 4.

Further, the photographic processing apparatus is provided with a sorting means 26 for sorting the cut photographic paper 21 to a predetermined position before reaching the exposure section 22. This sorting means 26 is provided at the cut portions 25 and 25 outlets.
A chuck 26a is provided for gripping the cut photographic paper 21 and transporting the photographic paper 21 to a predetermined position of the exposure unit 22.

The chuck 26a is capable of reciprocating in the roller width direction of the transport roller 1 and reciprocating along the transport path 10.

The photographic printing paper 21 is sorted by the sorting means 26 before the exposure unit 22, so that the line exposure in the exposure unit 22 and the printing processing in the printing unit 23 are performed in the sorted state, and the drawing process is shown as it is. However, it is transported to the development processing section.

The exposure unit 22 includes a light source 22a and the light source 2a.
2a via an optical fiber bundle (not shown),
A line-shaped PLZT head 22b provided in a direction perpendicular to the transport direction of the photographic paper 21, a light source 22a, and a PLZT
And a light quality modulation filter (not shown) disposed on an optical path between the head 22b and an image output from the computer (not shown) to the PLZT head 22b. , The light transmitted through the light quality modulation filter is sent from the light source 22a, and this P
The photographic paper 21 is subjected to line exposure by transferring the photographic paper 21 one dot row at a time to the LZT head 22b.

In the exposing section 22, a pair of first and second exposing rollers 13 and 14 are provided on the entrance and exit sides of the exposing section, respectively, in order to perform exposure while conveying the printing paper 21. The photographic paper 21 is exposed while being transported by the first exposure transport roller 13, and is exposed while the photographic paper 21 is transported by the second exposure transport roller 14 on the way.

The first transport roller 13 for exposure and the second transport roller 14 for exposure are composed of a driving roller 15 and a driven roller 16 that follows the driving roller 15, and the driven roller 16 is a driving roller. Fifteen
To be pressed against or separated from. When the first transport roller 13 for exposure and the second transport roller 14 for exposure are in a pressure contact state with one roller,
So that the other roller is separated
The printing paper 21 is transported by one of the rollers.

More specifically, the first transport roller 13 for exposure
First, the photographic paper 21 is transported while the photographic paper 21 is nipped by the first exposure transport roller 13 on the entrance side, and the leading end of the photographic paper 21 is moved by the PLZT head 22b. After the passage, exposure of the printing paper 21 from the PLZT head 22b is started.

When the leading edge of the photographic paper 21 reaches the second transport roller 14 for exposure on the exit side, the driven roller 16 of the first transport roller 13 for exposure is separated from the second transport roller 14 for exposure. The roller 16 is pressed against and the photographic paper 21 is transported while being nipped by the second exposure transport roller 14, and is discharged to the printing unit 23.

The printing unit 23 is a line-exposed photographic paper 2
A printing device 23 for printing necessary data on the back surface of the printer 1
The printing paper 21 line-exposed by the exposure unit 22 is transported by the transport roller 1 and data is printed by the print head 23b of the printing device 23a.

In the photographic processing apparatus having the above configuration, in this embodiment, as shown in FIGS. 1 to 8, between the exposure unit 22 and the printing unit 23, the photographic paper discharge side of the exposure unit 22 is disposed. A guide member 4 disposed along the transport path 10 so as to sandwich both sides of the photographic paper 21 to be discharged, and a pair of members that can move back and forth along the guide member 4 and that can be pressed and separated. The transport mechanism 3 including the moving rollers 51 and 52 is disposed.

As shown in FIGS. 1 to 3, the guide member 4 is formed by stacking two long strip-shaped stainless steel plates 4a and 4b, and has one side in the longitudinal direction curved and the other side straight. It is arranged so that the curved side faces the second exposure roller 14 of the exposure unit 22 so that the photographic paper 21 passes between the two stainless plates 4a and 4b. I have to.

As shown in FIG. 2, the two superposed guide members 4 are arranged in parallel at a predetermined interval, and the guide members 4 are provided with prints at their curved ends. Opening portion 4 that spreads outward to facilitate entry of paper 21
1 are formed.

The moving rollers 51 and 52 are shown in FIGS.
As shown in FIG. 5, one of the moving rollers 51 is configured to rotate by driving a roller rotation motor 53,
The other moving roller 52 is moved to the rotating moving roller 51.
The moving rollers 51 and 52 are rotatably supported by two support plates 6 and 6 disposed at both ends in the roller width direction.

In supporting the moving roller 52 to be pressed against and separated from the supporting plate 6, the inner diameter of the supporting hole 61 formed in the supporting plate 6 for supporting the moving roller 52 is moved by a predetermined distance in the vertical direction. The size is as large as possible.

As shown in FIG. 4, a roller rotating motor 53 for rotating a moving roller 51 for rotational driving is attached to one of the support plates 6.
The rotation of the roller rotation motor 53 is transmitted to the moving roller 51 via the timing belt 54.

As shown in FIG. 5, the other support plate 6 is provided with a roller for driving a moving roller 52 for pressing and separating so as to be pressed against or separating from a moving roller 51 for rotational driving. A separation motor 71 and an eccentric cam 72 driven to rotate by the roller separation motor 71 are provided.

Further, a moving roller 52 for pressing and separating is provided.
The roller support shaft 73, which is arranged in parallel with the support plate 6, is rotatably supported by the two support plates 6, 6, and a long roller holder is provided below the two support plates 6, 6 so as to straddle them. 74 are provided.

The roller holder 74 is provided with mounting rollers 75, 75 through which both ends of a moving roller 52 for pressing and separating and a holder supporting shaft 73 are rotatably inserted. Mounting piece 75,
The support roller 73 swings about a holder support shaft 73 supported by each of the support plates 6 and 6 via 75, and with this swing, the moving roller 52 for pressing and separating the support plate 6 has the size of the support hole 61 of the support plate 6. It is supported by support plates 6 and 6 via holder support shaft 73 so as to move up and down within the range.

Further, the mounting piece 7 of the roller holder 74
One end of each of the springs 76, 76 is fixed near the support position of the pressing / separating moving roller 52 at 5, 75,
The other ends of the springs 76, 76 are fixed at positions above the mounting pieces 75, 75 of the support plates 6, 6, and the springs 76, 76 allow the moving roller 52 for pressing and separating.
Are urged in a direction in which they are pressed against the moving roller 51 for rotational driving.

Further, a swinging pin 77 which engages with the eccentric cam 72 is projected from an upper part of one mounting piece 75 of the roller holder 74, and the eccentric cam 72 is eccentric by driving the roller separating motor 71. When rotated, the roller holder 74 swings about the holder support shaft 73 via a swing pin 77 that engages with the eccentric cam 72.

In this embodiment, the moving roller 5
1, 52 are moved along the length direction of the guide member 4, and as shown in FIG.
6, a moving holder 8 including hanging pieces 81, 81 facing the inner surfaces of the support plates 6, 6 and a connecting piece 82 connecting one end of the hanging pieces 81, 81 in the vertical direction is provided. ing.

The hanging pieces 81 of this moving holder 8
The supporting plates 6 and 6 on which a moving roller 51 for rotational drive and a moving roller 52 for pressing and separating are supported so as to be swingable. The formed slide portions 84 and 84 are
Slidably supported by two moving shafts 83 extending along the axis, and a belt fixing portion 85 extending from one sliding portion 84 is rotated in conjunction with driving of a moving motor 86. It is fixed to the belt 87.

Further, each hanging piece 8 of the moving holder 8
In the vicinity of the connecting piece 81 in the first and the first 81, support pins 88 and 88 projecting outward in the roller width direction are provided so as to protrude.
The support plates 6 and 6 are swingably supported by the support pins 88 and 88 so that the support plate 6 swings about the support pins 88 and 88.

Outside the support plates 6, 6, guide plates 9, 9 for moving the support plates 6, 6 along the transport path 10 while swinging the support plates 6, 6 at a predetermined angle are provided. The guide plates 9, 9 have guide grooves 91, 9 for fitting guide pins 62, 62 projecting from the outer surfaces of the support plates 6, 6, respectively.
1 are formed.

As shown in FIG. 2, the guide grooves 91 and 91 are formed with curved grooves corresponding to the curved portions of the guide member 4, and the curved portions are opposite to the curved portions of the guide member 4. It is formed to bend in the direction.

By fitting the guide pins 62 into the guide grooves 91, the guide grooves 91, 9 are formed.
When the guide pins 62 move along the curved portion 1, the support plates 6 and 6 support the support pins 88 of the moving holder 8.
The rollers 51 and 5 move along the moving shafts 83 and 83 while swinging about
2 moves along the guide member 4.

Next, the drive control of the transport mechanism 3 including the guide member 4 and the pair of moving rollers 51 and 52 will be described.

This drive control is performed by a pair of moving rollers 5.
1, 52 are moved in a separated state by following the movement of the leading end of the photographic paper 21 discharged from the exposure unit 22 in the transport direction,
When the exposure of the photographic paper 21 is completed, the moving roller 5
1,52 are pressed. By this pressure contact, the guide member 4
The leading end side of the photographic paper 21 between the moving rollers 51 and 52 is pinched by the moving rollers 51 and 52 while being guided, and the moving rollers 51 and 52 in the pressed state are moved to the end of the guide member 4 to print. The paper 21 is transported to the end of the guide member 4. When the moving rollers 51 and 52 reach the end of the guide member 4, the moving rollers 51 and 52 are driven to rotate in a direction for discharging the photographic paper 21.

More specifically, when the photographic paper 21 is being conveyed by the first conveying roller 13 of the exposure unit 22, the guide pins 62 of the support plate 6 are connected to the guide grooves 91 of the guide plates 9, 9. 91 at the curved end of the moving roller 5
3, are positioned at the positions drawn by solid lines in FIG.

At this time, the roller separating motor 71 is driven to swing the roller holder 74 to a predetermined position at which the pressure contacting / separating moving roller 52 is separated from the rotary driving moving roller 51. By stopping the drive of the roller separation motor 71 when the distance has reached, the pressure contacting / separating moving roller 52 is separated from the rotational driving moving roller 51 as shown in FIG. deep.

As shown in FIG. 6, during the exposure by the exposure unit 22, the photographic paper 21 starts to be transported by the second transport roller 14, and the photographic paper 21 discharged from the second transport roller 14 is discharged. , Enters the guide member 4, and the leading end of the printing paper 21 is 20 mm from a line connecting the centers of the moving rollers 51 and 52 located near the curved end of the guide member 4.
(A) is detected by a sensor (not shown),
The detection result is input to a computer (not shown), and the output from the computer causes the movement motor 86 to start driving, and the movement rollers 51 and 52 are printed along the length direction of the guide member 4. The paper 21 starts to move at the same speed as the transport speed.

The movement of the moving rollers 51 and 52 is started by the output of a computer, and the driving of the moving motor 86 is started.
7 starts rotating, the belt fixing portion 85 of the moving holder 8 fixed to the moving belt 87 starts to move, and the support plates 6 and 6 supported by the moving holder 8 move to the moving shaft 8.
3, 83, and are moved along moving rollers 51, 52.
Is performed. In addition, the moving rollers 51 and 52
At this time, it is moved in a separated state.

When the exposure by the exposure unit 22 is completed while the moving rollers 51 and 52 are moving, the roller separating motor 71 starts to be driven by the output from the computer, and the roller holder 74 is driven by the rotation of the eccentric cam 72. Rocking,
The moving roller 52 for pressure contact / separation in the separated state is pressed against the moving roller 51 for rotational driving, and when the pressed state is reached, the driving of the roller separating motor 71 is stopped,
As shown in FIG. 7, the photographic paper 2 is moved by the moving rollers 51 and 52.
1 is pinched. And the moving roller 51,
52 while holding the photographic paper 21 with the moving roller 51,
52 moves along the guide member 4, and the printing paper 21 is conveyed by moving rollers 51 and 52.

Further, when the moving rollers 51 and 52 reach the end of the guide member 4, the result of the reaching is as follows.
Input to the computer, output from the computer,
The roller rotation motor 53 rotates, and the rotation driving moving roller 51 starts rotating. The moving rollers 51 and 52 are in the pressed state, so that the photographic paper 21 is sent to the transport belt 17 provided at the entrance side of the printing unit 23. Can be

As described above, according to this embodiment, regardless of the size (length) of the photographic paper 21, the photographic paper 21 is moved by the guide member 4 until the exposure of the photographic paper 21 is completed. The leading end of the printing paper 21 is guided along the transport path 10, and at this time, the moving rollers 51, 52 in the separated state are guided by the movement of the leading end of the printing paper 21 to guide the guide member 4.
When the exposure is completed, the moving rollers 51 and 52 are pressed against each other to hold the leading end of the photographic paper 21 between the moving rollers 51 and 52 so that the photographic paper 21 is conveyed. Therefore, the photographic paper 21 is not conveyed by the moving rollers 51 and 52 unless the exposure is completed.

As a result, irrespective of the length of the photographic paper, the photographic paper does not enter the press-contacted conveying roller or the conveying belt during the exposure of the photographic paper. In addition, it is possible to reliably prevent the unevenness of exposure of the photographic printing paper from being caused by the transport roller disposed on the discharge side of the exposure unit, and to improve print quality.

Moreover, since only one pair of moving rollers 51 and 52 need be provided, the structure and control of the transport mechanism can be simplified accordingly.

[0053]

According to the first aspect of the present invention, in a photographic processing apparatus having an exposure unit for performing exposure while transporting a photographic paper, both sides of the photographic paper to be discharged are sandwiched between the exposure unit discharge side. And a guide mechanism disposed along the transport path, and a transport mechanism including a pair of movable rollers capable of moving back and forth along the guide member, and being capable of pressing and separating, the movable roller Is moved in a separated state following the movement of the leading edge of the photographic paper discharged from the exposure unit in the transport direction, and when the exposure of the photographic paper is completed, is pressed against the leading end of the photographic paper guided by the guide member. Since the printing paper is moved to the end of the guide member, regardless of the size (length) of the printing paper, the printing paper is moved by the guide member until the exposure to the printing paper is completed. Conveys the leading edge of photographic paper The guide is guided along the path, and at this time, the moving roller in the separated state is moved along the guide member so as to follow the movement of the leading end of the photographic paper, and when the exposure is completed, the moving roller is pressed. Then, the photographic paper can be transported while nipping the leading end of the photographic paper with the moving roller.

As a result, irrespective of the length of the photographic paper, the photographic paper does not enter between the pressure-contacted conveying rollers and the conveying belt during exposure of the photographic paper. In addition, it is possible to reliably prevent the exposure unevenness on the photographic paper by the transport roller disposed on the discharge side of the exposure unit, and to improve the print quality.

Moreover, since only one pair of moving rollers is required, the structure and control of the transport mechanism can be simplified accordingly.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a printer unit of a photographic processing apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a transport mechanism of the photographic processing apparatus of the present invention.

FIG. 3 is a schematic side view showing an exposure unit and a transport mechanism of the photographic processing apparatus of the present invention.

FIG. 4 is a perspective view showing a part of a transport mechanism of the photographic processing apparatus of the present invention.

FIG. 5 is a perspective view showing a part of a transport mechanism of the photographic processing apparatus of the present invention.

FIG. 6 is an explanatory diagram illustrating a transfer state of a transfer mechanism of the photographic processing apparatus of the present invention.

FIG. 7 is an explanatory diagram illustrating a transfer state of a transfer mechanism of the photographic processing apparatus of the present invention.

FIG. 8 is an explanatory diagram showing a transport state of a transport mechanism of the photographic processing apparatus of the present invention.

FIG. 9 is a schematic side view showing a transport mechanism of a conventional photographic processing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Transport path 21 Photographic paper 22 Exposure part 3 Transport mechanism 4 Guide member 5 Moving roller

Claims (2)

[Claims] In a photographic processing apparatus provided with an exposure unit for performing exposure while transporting a photographic paper, the photographic paper is disposed along a transport path on a discharge side of the exposure unit so as to sandwich both sides of the discharged photographic paper. A guide mechanism and a transport mechanism including a pair of movable rollers capable of moving back and forth along the guide member and capable of pressing and separating are disposed, and the movable roller is provided for the photographic paper discharged from the exposure unit. When the exposure of the photographic paper is completed, the photographic paper is brought into pressure contact with the leading end of the photographic paper guided by the guide member when the exposure of the photographic paper is completed, so as to follow the movement of the leading end of the photographic paper in the transport direction. A photographic processing apparatus characterized by moving the image. 2. The photographic processing apparatus according to claim 1, wherein the moving roller is driven to rotate in a direction in which the photographic paper is discharged when the moving roller reaches the end of the guide member.