JPH04106538A - Photographic paper printing device - Google Patents

Abstract

PURPOSE:To perform the exposure of a main image and the exposure of an illustration image at the same time, and to shorten the time of the exposure processes by setting intervals of sheets of photosensitive paper which are conveyed successively to a conveyance interval which is an integral multiple of the distance on a conveyance path between the photosensitive paper sheet stop position of a main image printing part and the photosensitive paper sheet stop position of an illustration image printing part and corresponds to the size of the sheets of photosensitive paper. CONSTITUTION:The main image printing part 16 and illustration image printing part 17 which expose the paper 9 to images are arranged at different places on the conveyance path of the sheets of photosensitive paper 9 and the printing part 16 and printing part 17 are controlled by a microcomputer 31. A precedent sheet of paper 9 which is conveyed to the printing part 16 is exposed to the main image and conveyed toward the printing part 17. The conveyance is stopped when the interval between the sheet of paper 9 which is already exposed to the main image and a following sheet of paper 9 after being cut by a cutter 8 becomes the integral multiple of the distance on the conveyance path between the photosensitive paper stop position of the printing part 16 and the photosensitive paper stop position of the printing part 17. At this stop, the main image exposure and illustration image exposure are performed at the same time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a photographic paper printing apparatus that exposes a main image and an illustration image to a sheet of photographic paper at different locations on a conveyance path of the sheet of photographic paper.

[Prior Art] Some photographic paper printing apparatuses, for example, cut strips of photographic paper into sheets of photographic paper, and expose the sheets of photographic paper to light in an image printing section installed on a conveyance path. In this type of photographic paper printing device, a main image printing section that exposes the so-called main image and an illustration image printing section that exposes so-called illustration images such as characters are arranged adjacent to each other on the conveyance path. be. When exposing the main image printing section and the illustration image printing section, it is necessary to move the sheet of photographic paper to a location suitable for each image printing position and perform the exposure.

This moving method will be explained based on the schematic side view of the photographic paper printing apparatus shown in FIG. In this photographic paper printing device, a main image printing section and an illustration image printing section are arranged adjacent to each other. First, the photographic paper strip 41 is pulled out to the drawer 2 by the drive of the photographic paper drawer motor 42, and then sent out to the cutter 44 by the drive of the photographic paper feed motor 43. This cutter 4
The strip-shaped photographic paper 41 sandwiched between the belts 4 is cut into a predetermined length to form a sheet-shaped photographic paper 45, which is suctioned by a suction means (not shown) and sequentially conveyed by a belt conveying section 460 constituting an image printing section. When the sheet-like photographic paper 45 conveyed on the belt 48 reaches a predetermined exposure position of the main image printing section 49, the conveyance of the belt 48 is stopped and the main image is exposed in the main image printing section 49. Next, the exposed sheet-shaped photographic paper 45 is conveyed to the illustration image printing section 50, and when it reaches a predetermined exposure position of the illustration image printing section 50,
The conveyance of the belt 48 is stopped, and the illustration image is exposed in the illustration image printing section 50.

In this way, in the conventional photographic paper printing apparatus, the exposure of the main image and the exposure of the illustration image are carried out separately and independently.
I needed to.

In addition, in the conventional illustration image printing section 50, the stop position for exposing the illustration image is usually fixed, and when the size of the photographic paper is different or the printing position of the illustration image is different even if the size is the same, the position shown in FIG. As shown in the figure, the illustration image exposure light source and the illustration negative 51 were moved in accordance with the exposure position.

[Problem A to be Solved by the Invention] As mentioned above, in the conventional photographic paper printing apparatus, the exposure of the main image and the exposure of the illustration image were carried out separately and independently. The transportation must be stopped and exposed at the stop position and the illustration image exposure stop position, respectively, and the exposure process takes a lot of time. In addition, regardless of the size of the sheet-like photographic paper, the sheet-like photographic paper exposed in the main image printing section was directly conveyed to the next illustration image printing section, so especially in the case of small sizes, the conveyance interval was too empty. There was a lot of waste.

In addition, in conventional illustration image printing unit equipment, the stop position for illustration image exposure was fixed, so the light source and illustration negative had to be moved according to the size of the photographic paper and the illustration image printing position. I needed to secure some space.

Furthermore, in order to perform exposure by moving the light source in this manner, it is necessary to use a lens having a wide angle of view, which has the drawback of making the apparatus expensive.

The present invention is intended to eliminate such drawbacks, and the invention as claimed in claim 1 is a photographic paper printing apparatus that has a simple structure and can simultaneously expose the main image and the illustration image, thereby shortening the exposure process. is intended to provide.

Further, the invention as claimed in claim 2 speeds up the exposure process by changing the stopping position of the sheet-like photographic paper according to the illustration image printing position on the sheet-like photographic paper, and changing the conveyance interval appropriately, and is inexpensive. The purpose is to provide a photographic paper printing device.

[Means for Solving the Problem] In order to solve the problem, the invention according to claim 1 provides a main image printing unit that exposes images to a sheet of photographic paper at different locations on a conveyance path of the sheet of photographic paper. and an illustration image printing section, the interval between the sheets of photographic paper that are continuously conveyed on the conveyance path is the same as the stop position of the sheet of photographic paper in the main image printing section and the It is characterized in that it is equal to one integer fraction of the distance on the conveyance path from the sheet-like photographic paper stopping position in the illustration image printing section.

Further, the invention according to claim 2 provides a photographic paper printing apparatus having a main image printing section for exposing an image to a sheet of photographic paper and an illustration image printing section at different locations on a conveyance path of the sheet of photographic paper. stop position changing means for changing the stop position of the sheet of photographic paper in the illustration image printing section in accordance with the illustration image printing position of the sheet of photographic paper; Depending on the change, the interval between the sheets of photographic paper that are continuously conveyed on the conveyance path is determined by the stop position of the sheet of photographic paper in the main image printing section and the stop position of the sheet of photographic paper in the illustration image printing section. The photographic paper spacing is changed to equal to an integral fraction of the distance on the conveyance path between the photographic paper and the photographic paper.

[Function] In the first aspect of the invention, a sheet of photographic paper is conveyed on a conveyance path, and first a main image is exposed to the main image printing section. Thereafter, the sheets of photographic paper are sequentially conveyed and exposed to an illustration image printing section which is located at a different location from the main image printing section and exposes the engraving images. At this time, the sheet-like photographic paper is transported along the transport path with an interval equal to one integer of the distance on the transport path between the stop position of the sheet-like photographic paper in the main image printing section and the stop position of the sheet-form photographic paper in the illustration image printing section. do.

Further, in the invention according to claim 2, the stop position of the sheet-like photographic paper in the illustration image printing section is changed according to the illustration image printing position, and the stop position of the sheet-like photographic paper in the illustration image printing section is changed. The interval between the sheets of photographic paper that are continuously conveyed on the conveyance path is calculated as follows: Change the distance to be equal to an integer fraction of the distance.

[Example] Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.

FIG. 1 is a schematic diagram of a photographic paper printing apparatus according to the first aspect of the invention, and FIG. 2 is an explanatory diagram showing the conveyance operation of a sheet of photographic paper.

In this photographic paper printing apparatus, a sheet photographic paper information manual means 30 inputs sheet photographic paper information such as the size of the sheet photographic paper to be produced into a microcomputer 31 .

Based on the sheet-shaped photographic paper information, this microcomputer 31 drives the photographic paper drawer motor 1, photographic paper feed motor 5, cutter 8, and belt conveyance motor 14 to cut the strip-shaped photographic paper and cut the sheet-shaped photographic paper. Transport as. A main image printing section 16 and an illustration image printing section 17 that expose images onto the sheet of photographic paper 9 are arranged at different locations on the conveyance path of the sheet of photographic paper 9, and this main image printing section 16
and the illustration image printing section 17 are connected to the microcomputer 31.
controlled by

The photographic paper drawer motor 1 rotates the photographic paper drawer drive roller 2, and the strip-shaped photographic paper 4 sandwiched between the photographic paper drawer drive roller 2 and the photographic paper drawer driven roller 3 is pulled out. The strip-shaped photographic paper 4 pulled out by the drive of the photographic paper drawer motor 1 is first slackened and then transferred to the next photographic paper feed motor 5.
It is inserted into the photographic paper feeding drive roller 6 and the photographic paper feeding driven roller ruff which are rotated by the drive of the photographic paper feeding roller 6. The strip-shaped photographic paper 4 sent out from the photographic paper feeding drive roller 6 and the photographic paper feeding driven roller 7 is cut into a predetermined length D by a cutter 8. A sheet of photographic paper 9 cut by this cutter 8
is carried into the belt conveyance section 10.

Belt conveyance drive rollers 11 and 12 are arranged at the front and rear of the conveyance path in the belt conveyance section 10, and a conveyance heald 13 is provided between the belt conveyance drive rollers 11 and 12. The sheet-like photographic paper 9 is attached to the belt 13 by suction means (not shown).
is adsorbed to.

The belt conveyance drive roller 12 is driven by a heald conveyance motor 14, and the rotation of the belt conveyance drive roller 12 causes a conveyance belt 13 to convey the sheet-like photographic paper 9 in the direction of the arrow. A pressure roller 15 is disposed above the conveyance drive roller 11 so as to be in contact with the conveyance belt 13 . After the sheet-shaped photographic paper 9 is cut by the cutter 8, it is pressed onto the conveyor belt 13 by the pressure roller 15, and first conveyed in the direction of the main image printing section 16.

While this preceding sheet-like photographic paper 9 is being conveyed to the main image printing section 16, the photographic paper feed motor 5 is driven to send out the strip-like photographic paper 4 again, and the photographic paper is fed to a predetermined position to be cut by the cutter 8. The drive of the motor 5 is stopped. On the other hand, the belt conveyance motor 1 conveying the preceding sheet-like photographic paper 9
4 is stopped when the sheet-like photographic paper 9 reaches a predetermined position in the main image printing section 16.

By the way, the rotation control of the photographic paper feed motor 5 and the heald conveyance motor 14 is performed by using a pulse motor or an encoder, and the strip-shaped print 1Ic4 sent out by the drive of the photographic paper feed motor 5 is transferred to the heald conveyance section 10. In order to prevent the photographic paper from sagging, the speed at which the photographic paper strip 4 is fed is made slower than the conveyance speed of the belt conveyor 10, or the photographic paper feed motor 5 is stopped by the belt conveyor motor 1.
It is delayed from the drive stop in step 4.

The preceding sheet-shaped photographic paper 9 conveyed to the main image printing section 16 is exposed to a main image, and then the belt conveyance motor 14 is driven again to transfer the sheet-shaped photographic paper 9 to the illustration image printing section 1. transport in the direction. The distance between the preceding sheet-like photographic paper 9 that has been exposed to the main image and the sheet that is to be cut by the cutter 8 to become the following sheet-like photographic paper 9 is the stop position of the sheet-like photographic paper in the main image printing section 16. The driving of the belt conveyance motor 14 is stopped when the distance between the sheet-shaped photographic paper stop position in the illustration image printing section 17 and the distance on the conveyance path equal to one integer is reached.

The conveyance operation of the sheet-like photographic paper 9 will be explained based on FIG. In Figure 2, the distance between the sheet-like photographic paper stopping position in the main image printing section 16 and the sheet-like photographic paper stopping position in the illustration image printing section 17 is defined as LQ, and the distance between the sheet-like photographic paper stopping position in the main image printing section 16 and the sheet-like photographic paper stopping position in the illustration image printing section 17 is defined as LQ. Rank! and cutter 8, and the belt conveying section l
The distance between the part of O and the strip of photographic paper 4 is Ll.
shall be. In FIG. 2, the stopping position of the sheet of photographic paper is set at the center of the photographic paper, but the present invention is not limited to this.

When the main image is conveyed by the conveyor belt 13 after exposure, as shown in FIG. When the distance reaches a predetermined interval, which is L-LO/3 in this figure, the driving of the belt conveying motor 14 is stopped, and the cutter 8 cuts the strip of photographic paper 4, and the subsequent sheet of photographic paper 9b is cut.
becomes. It should be noted that this operation is not necessary at the time of Ll-LO/3.

Next, the subsequent cut sheet-like photographic paper 9b is pressed onto the conveyor belt 13 by the pressure roller 15 and conveyed until it reaches the stop position of the main image printing section 16 (see Fig. 43).
3)).

In this way, the belt conveyance motor 14 is sequentially driven and stopped, and each sheet of photographic paper 9a, 9b, 9c,
... is conveyed at a predetermined interval L=LQ/3, when the preceding sheet-like photographic paper 9a reaches the stop position of the illustration image printing section 17, as shown in FIG. The sheet-like photographic paper 9d is the main image printing section 16.
The stop position has been reached. Therefore, at this stop,
Main image exposure and illustration image exposure can be performed simultaneously. Further, thereafter, the preceding sheet-like photographic paper 9b and the following sheet-like photographic paper 9e can be exposed simultaneously, and similarly, they can be exposed simultaneously simultaneously.

The size of the sheet-like photographic paper 9 is changed without changing the distance 1IILO between the stop position of the sheet-like photographic paper in the main image printing section 16 and the stop position of the sheet-like photographic paper in the illustration image printing section 17. If the size is changed, the spacing will be changed according to the size, and if the size is small, the spacing will be shortened and the sheet-like photographic paper 9 that should fit between 10
increase the number of L-LD for large sizes.
As described above, it is possible to simultaneously expose the main image and the illustration image.

Note that in this embodiment, the open part of the illustration image printing section may be replaced with a back printing device, or a device having both of these may be installed. The conveyance operation of the paper 9 is exactly the same as described above.

FIG. 3 is a schematic configuration diagram of the photographic paper printing apparatus according to the second aspect of the invention, and FIG. 4 is an explanatory diagram showing the conveyance operation of the sheet-shaped photographic paper.

This photographic paper printing apparatus has the same construction as that shown in FIGS. 1 and 2, except that the parts having the same reference numerals are the same, but the illustration image printing position is set by an illustration image printing position setting means 32. Based on the setting of the illustration image printing position, the microcomputer 31 controls the heald conveyance motor 14 to stop the sheet of photographic paper 9 in the illustration image printing section 17 according to the illustration image printing position of the sheet of photographic paper 9. The microcomputer 31 and the belt conveyance motor 14 constitute means for changing the stop position of the sheet of photographic paper 9. The microcomputer 31 controls the photographic paper feed motor 5, cutter 8, and belt conveyance motor 14 in accordance with changes in the stopping position of the sheet-shaped photographic paper in the illustration image printing section 17, so that the photographic paper is continuously conveyed on the conveyance path. The interval between the sheets of photographic paper 9 is set equal to one integer of the distance on the transport path between the stop position of the sheet of photographic paper in the main image printing section 16 and the stop position of the sheet of photographic paper in the illustration image printing section 17. Change this microcomputer 31,
Photographic paper feed motor 5, cutter 8 and belt conveyance motor 1
4 and the like constitute a photographic paper interval changing means.

The conveyance operation of this sheet-like photographic paper 9 will be explained based on FIG. 4.

In the invention set forth in claim 1, the exposure position of the illustration image in the illustration image printing section 17 is fixed on the optical axis of the lens, but in the invention set forth in claim 2, the printing position of the illustration image on the sheet-shaped photographic paper 9 is changed. or when the size of the sheet of photographic paper 9 is changed, the stopping position of the sheet of photographic paper 9 is changed.

Fig. 344 shows the conveyance interval of the sheet-like photographic paper 9 when the illustration image printing position is changed, and Fig. 4 (1)
In the case of , the illustration image printing position is at the rear end of the sheet-like photographic paper 9 with respect to the conveyance direction.
2) shows the case where the illustration image printing position is at the leading end of the sheet-like photographic paper 9. These Figures 4 (1), (
As shown in 2), the stopping position of the sheet-like photographic paper 9 is changed depending on the illustration image printing position.

Therefore, the distance between the stop positions at the main image printing section 16 and the illustration image printing section 1f shown in FIG. 4(1) @
LO-1 becomes LO-2 in (2). For this reason,
The spacing between each sheet of photographic paper 9 is L− in FIG. 4(1).
LO-1/n (n=3 in this example), and the fourth
In Figure (2), L; LO-2/n (n-2 in this example).

Like this illustration image printing department! Even if the stopping position of the sheet-like photographic paper 9 is changed in the second embodiment, the main image and the illustration image can be simultaneously exposed as described above by appropriately changing the interval between the sheets of photographic paper 9.

Furthermore, since the exposure position of the illustration image is on the optical axis, it is possible to downsize the light source, and even a lens with a small angle of view can be properly exposed.

The printing position of this illustration image can be manually input each time, or it can be set by automatically reading a barcode written on the board for the illustration negative set.

In this embodiment, the stopping position of the illustration image printing section 17 is changed according to the size of the sheet-shaped photographic paper 9 and the printing position of the illustration image as described above, and the paper is transported as appropriate as described above. By changing the interval, the main image and illustration image can always be exposed at the same time.

Next, an embodiment of an apparatus for further improving the accuracy of the stop position of each printing part according to the invention as claimed in claims 1 and 2 will be described.

In FIGS. 1 and 3, a sheet-shaped photographic paper leading edge detection sensor 20 is provided between the pressure roller 15 on the upstream side of the belt conveying section 10 and the main image printing section 16, and the photographic paper is detected from the sensor detection point. The cutting length of the strip-shaped photographic paper 4 is controlled by the feeding amount to improve the precision of the size of each sheet-shaped photographic paper 9. Furthermore, a sheet-shaped photographic paper leading edge detection sensor 21 is provided between the main image printing section 16 and the illustration image printing section 17, and the stopping position at the illustration image printing section 1 can be accurately determined by the feeding amount of the photographic paper from the sensor detection point. control.

Further, a method for forcibly stopping the printing part at each printing part stop position using a positioning claw to improve the positioning accuracy will be described with reference to FIG.

FIG. 5 shows a plan view of the conveyor belt 13 in the image printing section. In FIG. 5, at the stop position of the image printing section, there are
A positioning pawl 22 is installed between the conveyor belts 13 for conveying sheet-like photographic paper so that it can be moved in and out of a stop position at the leading edge of the sheet-like photographic paper 9 in the conveying direction. Immediately before the unit reaches a predetermined stop position, the positioning pawl 22 is projected, and the sheet-like photographic paper 9 is abutted against the positioning pawl 22 to accurately position it.

[Effects of the Invention] As described above, in the photographic paper printing apparatus according to claim 1, the interval between the sheets of photographic paper that are continuously conveyed on the conveyance path is adjusted to the stop position of the sheet of photographic paper in the main image printing section. The main image can be Exposure and illustration image exposure can be performed simultaneously, and the exposure process can be shortened.

Further, in the photographic paper printing apparatus according to claim 2, the distance between the sheets of photographic paper continuously conveyed on the conveyance path is adjusted according to the change of the stop position of the sheet-like photographic paper in the illustration image printing section. Since the distance on the conveyance path between the stopping position of the sheet-like photographic paper at the section and the stop position of the sheet-like photographic paper at the illustration image printing section is changed to be equal to one integer, the illustration image printing position of the sheet-like photographic paper is changed. To provide an inexpensive photographic paper printing device by changing the stop position of a sheet of photographic paper in an illustration image printing section accordingly, thereby reducing the size of a device housing a light source, and by using a lens with a small angle of view. I can do it. In addition, by changing the stopping position of the sheet of photographic paper according to the printing position of the illustration image on the sheet of photographic paper and changing the conveyance interval as appropriate, the exposure process can be speeded up and the apparatus can be made inexpensive. can.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of a photographic paper printing apparatus according to the invention as claimed in claim 1, FIG. 2 is an explanatory diagram showing the conveyance operation of a sheet of photographic paper, and FIG. 4 is an explanatory diagram showing the conveying operation of sheet-shaped photographic paper, FIG. 5 is a plan view of the conveying belt in the image printing section, and FIG. 6 is a schematic side view of a conventional photographic paper printing device. be. In the figure, reference numeral 4 is a strip of photographic paper, 9 is a sheet of photographic paper, 10 is a belt conveyance section, 16 is a main image printing section, 1st is an illustration image printing section, 30 is a sheet of photographic paper information input means, and 31 is a micro The computer 32 is an illustration image printing position setting means. Patent applicant Konica Co., Ltd. Figure 5

Claims (1)

[Scope of Claims] 1. In a photographic paper printing apparatus having a main image printing section that exposes an image to a sheet of photographic paper and an illustration image printing section at different locations on a conveyance path of the sheet of photographic paper, The interval between the sheets of photographic paper that are continuously conveyed on the road is such that the interval between the sheet-like photographic paper stopping position in the main image printing section and the sheet-like photographic paper stopping position in the illustration image printing section is on the conveying path. A photographic paper printing device characterized in that the distance is equal to one integer fraction of the distance. 2. In a photographic paper printing apparatus having a main image printing section for exposing an image to a sheet of photographic paper and an illustration image printing section at different locations on the conveyance path of the sheet of photographic paper, an illustration image of the sheet of photographic paper is printed. stop position changing means for changing the stop position of the sheet-like photographic paper in the illustration image printing section according to the printing position; and stop position changing means for changing the stop position of the sheet-like photographic paper in the illustration image printing section; The interval between the sheets of photographic paper transported is determined by an integer of the distance on the transport path between the stop position of the sheet of photographic paper in the main image printing section and the stop position of the sheet of photographic paper in the illustration image printing section. 1. A photographic paper printing apparatus comprising: means for changing photographic paper spacing equal to 1/1.