JPH01217446A - Photograph printing device - Google Patents

Abstract

PURPOSE:To easily switch a border and a borderless in operating condition by providing a light shielding mask so that it is movable to a first position (a border position) and a second position (a borderless position) in response to a signal from a switching means. CONSTITUTION:A control means 64 controls a moving means 58 so that light shielding masks 50 and 52 are moved from the first position to the second position when a first signal is outputted from the switching means 66. In this case the shading masks 50 and 52 are moved in the direction far from a photosensitive material 14. And besides, the control means 64 controls a conveying means 16 when a second signal is outputted, conveys the photosensitive material 14 in the way that said material is positioned outward the shading masks 50 and 52, and then, controls the moving means 58 so that the shading masks 50 and 52 are moved from the second position to the first position. Therefore, the interference of the photosensitive material 14 and the light shielding masks 50 and 52 never occurs in either case. Thus, the border and the borderless can easily be switched even in the operating condition.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a photographic printing apparatus, and more particularly to a photographic printing apparatus equipped with a light-shielding mask that forms an unexposed area at the periphery of an image forming area of photographic paper to form a fringe. Regarding printing equipment.

[Conventional technology]

In a photographic printer that exposes photographic paper in an exposure section and prints the image on the negative film onto the photographic paper, the photographic paper is sequentially pulled out from a magazine containing rolled photographic paper, exposed, and then exposed for each print. It is cut to The photographic paper after printing is conveyed to the next process such as a developing device. The exposure section is provided with a light-shielding mask consisting of a pair of longitudinal masks that can move forward and backward along the conveyance direction of the photographic paper and a pair of widthwise masks that can move forward and backward along the width direction of the photographic paper. ing. This light shielding mask is used to form a fringe around the periphery of a developed print by shielding the periphery of the image forming area of the photographic paper to form an unexposed area. Note that when the formation of such a fringe is not necessary, each mask is moved to a position where the photographic paper is not shielded from light by the light shielding mask. - In general, forming a Yuen is called a border, and not forming a byakuroku is called a borderless.

[Problem to be solved by the invention]

However, with conventional photoprinting equipment, when switching the light-shielding mask between the border and borderless positions while the photoprinting equipment is in operation, the photographic paper is located in the exposed area, so the borderless When switching to the position, the leading edge of the width direction mask interferes with the side edge of the photographic paper, making it impossible to efficiently switch between the border and borderless modes.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a photoprinting device in which switching between border and borderless mode can be easily performed by key operation while the photoprinting device is in operation. do.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a conveying means for conveying a photosensitive material in the direction of an exposure section and in a direction retreating from the exposure section, a pair of longitudinal masks that can move forward and backward along the direction of conveyance of the photosensitive material; A light-shielding mask consisting of a pair of width-direction masks movable along the width direction of the photosensitive material is provided, and a light-shielding means is arranged in the exposure section, and an unexposed portion is formed at the periphery of the image forming area of the photosensitive material. moving means for moving the light shielding mask between a first position and a second position where the unexposed portion is not formed; and a first signal for moving the light shielding mask from the first position to the second position. and a switching means for outputting a second signal for moving the light-shielding mask from the first position to the first position when the first signal is output. controlling the moving means to move the light-shielding mask and controlling the conveying means so that the photosensitive material is located outside the light-shielding mask when the second signal is output; and then the light-shielding mask is in a second position. and control means for controlling the moving means to move from the first position to the first position.

[Effect]

The conveyance means of the present invention conveys a photosensitive material such as photographic paper in the direction of the exposure section and in the direction away from the exposure section. The shading means are
A light-shielding mask is disposed in the exposure section and consists of a pair of longitudinal masks that can move forward and backward along the conveyance direction of the photosensitive material and a pair of widthwise masks that can move forward and backward along the width direction of the photosensitive material. We are prepared. The moving means places a light-shielding mask at a first position (border position) where an unexposed part is formed at the periphery of the image forming area of the photosensitive material and a second position (borderless position) where this unexposed part is not formed. Moving. By exposing with the light-shielding mask in the first position, a print with a fringe can be created, and by exposing with the light-shielding mask in the second position, a print with no fringe can be created. can be created. The switching means outputs a first signal for moving the light shielding mask from the first position to the second position, and a second signal for moving the light shielding mask from the second position to the first position.

The control means controls the moving means so that the light shielding mask moves from the first position to the second position when the first signal is output. When the light-shielding mask is moved from the first position to the second position, the light-shielding mask is moved in a direction away from the photosensitive material, so that no interference occurs between the photosensitive material and the light-shielding mask. Further, when the second signal is output, the control means controls the first general feeding means to transport the photosensitive material so that it is located outside the light-shielding mask, and then the light-shielding mask is moved from the second position to the first position. Control the vehicle to move. Since the photosensitive material is thus conveyed by force outside the light-shielding mask, no interference occurs between the photographic paper and the light-shielding mask even if the light-shielding mask is moved. Thereby, even when the photoprinting apparatus is in operation, switching between border and borderless mode can be easily performed by operating the switching means.

〔Effect of the invention〕

As explained above, according to the present invention, when switching from borderless to border, the photosensitive material is transported so as to be located outside the light-shielding mask, so even if the transport mask is moved, the light-shielding mask and the photosensitive material interfere with each other. This eliminates the problem, and provides the advantage that switching between border and borderless mode can be easily performed even during operation.

〔Example〕

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

The photographic printing apparatus 12 of this embodiment includes a magazine 10 in which photographic paper wound into a roll is stored in a cardboard box.
is loaded. The photographic paper 14 pulled upward from the cardboard magazine IO is turned horizontally by the winding roller 16, and then transferred to the optical system 2 at the easel section E of the exposure section 18.
The image is printed by being exposed to light through 0, and is conveyed to the next process such as a developing device via a light-shielding guide roller 22. The winding roller 16 is rotated by a motor 19 and conveys the photographic paper in the direction of the exposure section 18 and in the direction away from the exposure section 18 . A photographic paper detector 24 composed of a light emitting element and a light receiving element is arranged on the photographic paper input side of the winding roller 16, and a photographic paper detector 24 composed of a light emitting element and a light receiving element is arranged on the photographic paper output side of the winding roller 16. A photographic paper leading edge detector 26 is arranged. Further, a regulating roller 40 is arranged near the outlet of the cardboard magazine 10 so as to face the emulsion surface of the photographic paper for regulating the direction in which the photographic paper is bent.

As shown in FIGS. 2 and 3 (1) and (2), the easel section E has a pair of long lengths that can move toward and away from each other along the transport direction C of the photographic paper 14. A pair of width direction masks 50.52 and a pair of width direction masks 54.5 which can move toward and away from each other along the width direction of the photographic paper 14.
A light shielding mask consisting of 6 is arranged. This light-shielding mask is moved by a moving device 58 to a first position (position shown in FIG. 3 (1)) where the printing light is blocked and an unexposed portion is formed at the periphery of the image forming area 14A of the photographic paper; It is then moved to a second position (FIG. 3(2)) where this unexposed portion is not formed. Further, a cutter 28 for cutting the exposed photographic paper piece by piece is arranged in the easel section E, and this cutter 28 is driven by a driving device 60.

The cardboard magazine 10 is taken in and out by opening and closing an opening/closing lid 42 provided on the machine frame 38. Further, a limit switch 62 is attached to the machine frame 38, which is turned on when the opening/closing lid 42 is closed.

The photographic paper detector 24, the photographic paper leading edge detector 26, and the limit switch 62 are connected to a control circuit 64 composed of a microcomputer or the like so as to input signals.

Further, the control circuit 64 is connected to the moving device 58 and the driving device 60 so as to control the light shielding mask and cutter 28. The control circuit 64 also has a first signal for moving the light shielding mask from the first position to the second position, and a second signal for moving the light shielding mask from the first position to the second position.
A key switch 66 is connected that outputs a switching signal with a second signal for moving from the position to the first position.

Next, a photographic paper setting routine for setting photographic paper in the exposure section will be explained with reference to FIG. First, the cardboard magazine 10 is loaded into a predetermined position of the photographic printing apparatus by an operator after opening the opening/closing lid 42. The operator pulls out the leading end of the photographic paper 14 from the cardboard magazine 10, passes it between the photographic paper detectors 24, and then engages it with the winding roll 16. When the presence of photographic paper is detected by the photographic paper detector 24 in step 100, the motor 1 is activated in step 102.
9 is rotated in the normal rotation direction. Therefore, by engaging the leading end of the photographic paper with the winding roll 16, conveyance of the photographic paper is automatically started. This conveyance of the photographic paper continues until the leading edge of the photographic paper is detected by the leading edge detector 26. When the leading edge of the photographic paper is detected by the leading edge detector 26, at step 104), the rotation of the motor is stopped. (
Step 106). As a result, the photographic paper is conveyed until the leading edge of the photographic paper reaches the position of the leading edge detector 26. Next, the operator closes the opening/closing lid 42, but in step 10
When the closing of the opening/closing lid 42 is detected from the ON state of the limit switch in step 8, the motor 19 is rotated in the normal rotation direction again, and in step 110, the covering portion of the photographic paper is positioned downstream of the cutter 28. After a fixed amount of conveyance is performed, the photographic paper is cut by the cutter 28 in step 112. As a result, the fogged portion on the leading edge of the photographic paper is automatically cut and removed, and the unexposed portion of the photographic paper is set in the exposed portion.

In this way, the photographic paper is conveyed with the opening/closing lid 42 open until the leading edge of the photographic paper reaches the photographic paper leading edge detector 26,
Since the photographic paper is transported toward the exposure section when the cover is closed, the amount of paper covered is reduced compared to the conventional method in which the photographic paper is set in the exposure section with the cover open. can do.

FIG. 1 shows a switching routine for switching the light-shielding mask between the loop position and the loopless position, step 120.
In this step, it is determined whether the loopless mode has been selected by operating the key switch 6G. When it is determined that loopless has been selected, it is determined in step 122 whether or not the previous position of the light-shielding mask was a loop position. When the light shielding mask was in the loop position last time,
Even if the light-shielding mask is moved away from the optical axis of the exposure area, the tip of the light-shielding mask does not interfere with the side edges of the photographic paper.
In step 124, the light shielding mask is immediately moved to a loopless position.

When it is determined in step 120 that the loop has been selected by the selector switch 66, it is determined in step 126 whether or not the position of the light-shielding mask was the previous loopless position. If the position of the light-shielding mask was in the loopless position last time, moving the light-shielding mask in the direction toward the optical axis while the photographic paper is in the exposure area will cause the tip of the light-shielding mask to overlap the photographic paper. Since the edges may interfere with each other, the motor 19 is rotated in the reverse direction in step 128. As a result, the photographic paper is conveyed in a direction backward from the exposure section. In addition, since the cardboard magazine cannot rewind the photographic paper, the photographic paper transported in the direction of retreat from the exposure section is restricted by the regulating roller 40 from being deflected in the direction of the regulating roller. It bends in a loop shape as shown by the chain line. At this time, since the emulsion side of the photographic paper is located inside the loop, the emulsion side can be protected. This motor reversal is done in step 13.
The process continues until the leading edge of the photographic paper is detected by the photographic paper leading edge detector 26 at step 132, and when the leading edge of the photographic paper is detected, the rotation of the motor 19 is stopped at step 132 and the moving device 58 is controlled to block the light. Moved from the mask or loopless position to the loop position. Then, in step 134, the motor 19 is rotated in the normal direction to transport the photographic paper a predetermined amount until the leading edge of the photographic paper reaches the position of the cutter 28, thereby transporting the photographic paper to the exposure section 18 after switching from loopless to loop mode. The set is completed.

Although the above description has been made of a cardboard magazine that cannot be rewound, the present invention can also be applied to a photo printing apparatus that uses a magazine that can be rewound. In this case, when switching from loopless to loop, the photographic paper may be bent into a loop shape as described above, or the photographic paper may be rewound.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing a routine for switching between loop and loopless mode according to an embodiment of the present invention, FIG. 2 is a schematic diagram showing a photo printing apparatus according to the above embodiment, and FIG. 3 (1) is a schematic diagram of a light shielding mask. FIG. 3(2) is a perspective view shown, and FIG. 3(2) is an end view taken along the line ■--■ of FIG. 3(1), and FIG. 4 is a flowchart showing a routine for setting photographic paper in the exposure section of this embodiment. 10... Cardboard magazine, 40... Regulation roller, 64... Regulation circuit.

Claims (1)

[Claims] (1) A conveying means for conveying the photosensitive material in the direction of the exposure section and in a direction retreating from the exposure section, a pair of longitudinal masks that can move forward and backward along the direction of conveyance of the photosensitive material, and a pair of longitudinal masks that convey the photosensitive material in the width direction of the photosensitive material. a light shielding means including a light shielding mask consisting of a pair of width direction masks that can be moved back and forth and arranged in the exposure section; a first position for forming an unexposed part at the periphery of the image forming area of the photosensitive material; and the unexposed part. moving means for moving the light-shielding mask to a second position where the light-shielding mask is not formed; a first signal for moving the light-shielding mask from the first position to the second position; switching means for outputting a second signal for moving the light-shielding mask from the first position to the second position; and a switching means for outputting a second signal for moving the light shielding mask from the first position to the second position. control and when the second signal is output, the light-shielding mask is moved from the second position to the first position after controlling the conveying means so that the photosensitive material is located outside the light-shielding mask. and a control means for controlling the moving means.