JP3305865B2 - Photographic paper transport method and photo printing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic printing paper conveying method and a photographic printing apparatus applied to a photographic printing apparatus capable of changing a printing size while printing a plurality of images using the same photographic paper roll. The present invention relates to a paper transport device.

[0002]

2. Description of the Related Art In a printing apparatus for printing an image of a negative film, which is an original image film, on a photographic paper as a photosensitive material, efficiency is improved by continuously printing the same image or different images on a roll of long photographic paper. Good baking has been done.

The photographic paper on which the image is printed is developed by a developing device and then cut for each image to produce a product print.

As a plurality of types of images to be printed on long photographic paper, there are various types of images having different image lengths. As an example, a full-size frame (26 × 36 mm) printed on a 35 mm photographic film and printed on photographic paper with a print size of 89 × 127 mm is a full-size image, and a panorama frame (13) recorded on a 35 mm photographic film is printed. × 36mm)
Is a panoramic image printed on a photographic paper with a print size of 89 x 254 mm, a powerful vision frame (19 x 36 mm) recorded on 35 mm photographic film, and a print image printed on a photographic paper with a print size of 89 x 158 mm. It becomes a powerful vision image.

[0005] However, such original images having different printing sizes are not limited to the case where image frames of the same size are continuously photographed on a negative film. There is a film.

[0006] When such image frames of different sizes are mixed, the printing apparatus feeds the photographic paper at the printing size of the image printed immediately before at the time of printing at the time of printing on the photographic paper. After that, the next image is printed.

Therefore, according to the conventional method of printing image frames on photographic paper, when the feed amount of the previous print image is large (for example, a panoramic size image) and the feed length of the next print image is short (for example, a powerful image). In the case of a vision image or a full-size image), the photographic paper is sent larger than the actual printing range, so there is a blank area where the image is not exposed between consecutive images, and the photographic paper is wasted. Will be done.

This blank portion corresponds to half of the difference in image length, and the largest of the three types is the case where a full size image is printed next to a panorama size image.
It is 5 mm, and the smallest size is a case where a full size image is printed next to the powerful vision size, and a blank portion of 15.5 mm exists between the images.

Further, an apparatus has been proposed which detects the printing size in advance and adjusts the feed amount in two stages (Japanese Patent Laid-Open Publication No. Hei.
No. 333444), it is necessary to detect and store the printing size data in advance and calculate the feed amount each time.

[0010]

SUMMARY OF THE INVENTION In view of the above facts, an object of the present invention is to provide an image printing method and an image printing apparatus capable of efficiently printing an image when printing images continuously on a photosensitive material. It is.

[0011]

SUMMARY OF THE INVENTION The invention according to claim 1 of the present application is a photoprinting apparatus that can change the printing size while printing a plurality of images using the same photographic paper roll. A photographic paper conveying method of an apparatus, wherein a first step of quantitatively feeding photographic paper and, after a printing size is determined, a printing part length of the printing part is longer than the predetermined amount and there is a shortage in the printing part length. There is a second step in which the shortage is sent and the photographic paper is not sent if there is no shortage, and a third step in which an image is printed on the photographic paper after the second step.

[0012] The invention according to claim 2 of the present application is the first invention.
After the step, the operator can visually recognize the negative film frame in the printing section.

[0013] The invention according to claim 3 of the present application is the first invention.
The method is characterized in that a negative film is fed frame by frame while a fixed amount of photographic paper is fed in the process.

[0014] The invention according to claim 4 of the present application is the first invention.
After the process, the means for changing the photographic paper mask size is driven after the printing size is determined.

[0015] The invention according to claim 5 of the present application is the first invention.
It is characterized in that the frame size of the negative film is detected and displayed while the photographic paper is fed in a fixed amount in the process.

The invention according to claim 6 of the present application is a photographic printing apparatus for performing photographic printing in which the printing size can be changed during photographic printing using the same photographic paper roll. The first transporting means for sending, the printing size determining means for determining the printing size, and the printing portion length is longer than the above-mentioned fixed length after the printing size is determined, if there is a shortage in the printing portion length. A second conveying means for sending the shortage and not sending the photographic paper if there is no shortage; and an image printing means for printing an image on the photographic paper after the photographic paper is conveyed by the second conveying means. I do.

[0017]

According to the first aspect of the present invention, a fixed amount of photographic paper is fed when the previous image printing is completed. This feed may be before the feed of the negative film, or simultaneously with or after the feed of the negative film. This feed amount is a predetermined fixed amount. When the actual printing size of the next frame is determined, the shortage of the photographic paper feed is sent. If the length of the printing paper required for the actual printing size is longer than the fixed length of printing paper that has already been sent, this shortage is the amount that the printing paper length is insufficient. . If there is no such shortage, the printing paper is not sent and the printing operation is performed.

Therefore, according to the present invention, even when the printing size of the next printing is not determined after the previous printing operation is completed, the photographic paper can be conveyed by a fixed amount and the photographic paper can be quickly fed. In the second transport, only the shortage is sent, or if there is no shortage, there is no need to send, and the work efficiency is improved as a whole.

According to the second aspect of the present invention, the operator can visually check the negative film frame in the printing section after the printing paper has been conveyed by a fixed amount, whereby the operator can accurately determine the actual printing size. The operator changes the photographic paper mask size by changing the photographic paper mask size or adjusting the size based on the visual printing size. The change of the photographic paper mask size may be such that the photographic paper mask is driven by a driving force of a motor or the like when the operator directly changes the mask size manually or operates a selection button.

According to the third aspect of the present invention, the negative film is fed while the photographic paper is fed by a fixed amount.
This allows the negative film to be quickly fed,
When the negative film is sent and the next printing frame moves to the printing position, the operator can see this negative film frame,
It is possible to confirm the frames required for printing, and to skip unnecessary frames. This operator changes the photographic paper mask size, if necessary, based on the visual printing size of the frame determined to be necessary. In addition, the number of feeds of only those frames that have been recognized as frames requiring negative film printing coincides with the number of frame feeds of photographic paper, thereby eliminating mistakes and unnecessary burning.

According to the fourth aspect of the present invention, the means for changing the photographic paper mask size after the printing size is determined is driven. When the printing size is determined, the size of the photographic paper mask size is determined. Therefore, the photographic paper mask is changed to this mask size or replaced with a mask having another mask size. The change of the photographic paper mask size may be performed in parallel with the second step.

According to the fifth aspect of the present invention, the frame size of the negative film is detected and displayed in a state where the photographic printing paper is fed in the first step, and this display determines the next printing size. Used as information for This information is used to visually confirm the next print size.

In the invention according to claim 6, when the first transport means sends the photographic paper in a fixed amount, the printing size determination means determines the printing size. After the printing size is determined, the second conveying means sends the printing paper if the printing paper length is longer than the fixed amount and there is a shortage in the printing paper. Instead of sending the image, the image is printed on the photographic paper after the photographic paper is conveyed by the second conveying means. The first and second transporting means can transport the photographic paper by holding the photographic paper by rollers and rotating by the driving force of a motor. The first of these,
The same transport roller can be used for the second transport unit.

[0024]

【Example】

(Explanation of Image Size) FIG. 2 shows a negative film 12 applied to the present invention. The image frames printed on the negative film 12 are panorama frames 14, H (powerful vision) size frames 16, and full size frames 18,
There are types. There is. The negative film 12 is a 35 mm photographic film, and the panorama frame 14 has a length and width of 13 mm.
It is an image size of × 36 mm, and the H size frame 16 is 19 ×
The size of the full size frame 18 is 26 × 36 mm. The negative film 12 is developed and continuously printed on a long photographic paper 28 (see FIG. 1) after an image frame is made visible.

FIG. 3 shows the size of the image size (exposure size) obtained after these images are printed on photographic paper at the printing position. FIG. 3A shows a full-size image print 22 (length l). ), (B) shows an H-size image print 24 (length M), and (C) shows a panorama-size image print 26 (length L). After being continuously printed, it is developed and further cut at each image print. In this embodiment, the vertical and horizontal dimensions of each print are 89 × 127 mm for a full-size image print 22 and an H-size image print 2
4 x 89 x 158mm, panoramic size image print 26
89 × 254 mm.

FIG. 3 shows a case where images are continuously printed on photographic paper. In the case of a framed image in which a white frame is provided around these images, the actual exposure range is smaller than the dimensions shown. Become smaller.

(Description of Photo Printing Apparatus) FIG. 1 shows an example of a photo printing apparatus 10 for a large laboratory to which the present invention is applied. A printing paper mask 204 is disposed on the printing optical path PL, which is the optical axis of the light beam emitted from the light source 202 of the photographic printing apparatus 10, and a part of the long printing paper 28 is sandwiched between the printing paper masks 204 and printed. Fixed in position. This photographic paper mask 2
In 04, the mask interval can be changed according to the print size. Specifically, the mask interval can be adjusted or replaced with a mask having another mask interval. The elongate photographic paper 28 is wound in a layer shape on the rotating shafts 208 and 210 to form a roll. A pair of transport rollers 212 is installed downstream of the photographic paper mask 204, The paper 28 is sandwiched. The transport roller 212 is
It is rotated in the direction of arrow A in FIG. 1 by the driving force of the motor 214,
The leading end of the photographic paper is pulled out from the outer periphery of one roll-shaped winding portion (the left layered winding portion in FIG. 1) and wound on the other rotating shaft 210.

Unwinding rotary shaft 208 and photographic paper mask 2
The photographic paper 28 between the photographic paper 04 and the photographic paper 04 is wound around a tension roller 216. A tension roller 218 is also provided downstream of the transport roller 212, and the printing paper 28 is wound around the tension roller 218. These tension rollers 216,
Reference numeral 218 is movable in the direction perpendicular to the axis so as to maintain a constant tension during photographic paper conveyance.

The printing optical path PL below the photographic paper mask 204
Above is a negative carrier 220 as a film carrier.
Is provided, and a part of the long negative film 12 is sandwiched and fixed to the printing position. The detailed structure of the negative carrier 220 will be described later.

The negative film 12 is an example in which each negative film is spliced and formed into a long shape and processed by a so-called cine developing method.
24, 226, and a pair of transport rollers 228 are installed downstream of the negative carrier 220, and sandwich the negative film 12. Transport roller 22
8 is rotated in the direction of arrow B in FIG. 1 by the driving force of the motor 232, pulls out the negative film 12 from the outer periphery of one layered winding portion (left winding portion in FIG. 1), and rotates the other rotating shaft 226.
Wind up.

Unwinding rotary shaft 224 and negative carrier 2
The negative film 12 between the tension roller 2 and the
It is wound around 34. A tension roller 236 is also provided downstream of the transport roller 228, and the negative film 12 is wound around the tension roller 236. These tension rollers 234 and 236 can be moved in the direction perpendicular to the axis thereof, so that the tension during the transport of the negative film 12 is kept constant.

In the case of a mini-lab, since each negative film is sent by a negative carrier, a tension mechanism or the like is not required. Peace negative films (6
Similarly, in the case of Komanega), the tension mechanism becomes unnecessary.

Negative carrier 220 and photographic paper mask 204
Between the printing lens 237 and the black shutter 2
38 are arranged. The black shutter 238 is
It can be inserted or removed from the optical path PL according to a drive signal from the driver 240.

Further, the lens 237 is movable along the optical path PL in accordance with a drive signal from the driver 239, so that the magnification can be changed.
The change of the enlargement magnification by the lens 237 is performed by the driver 239, but the enlargement magnification is increased in the order of full size, force size, and panorama size, and the position is constant. Therefore, three positions of the full size, the impressive size, and the panorama size may be stored in advance, and the positioning may be performed at any one of the positions in accordance with a signal from the control unit.

Between the negative carrier 220 and the light source 202, cut filters 242, 244, 246 of C (cyan), M (magenta), and Y (yellow) are provided. These cut filters 242, 244, 2
46 is inserted or removed from the optical path PL in accordance with signals from the drivers 248, 250 and 252, respectively.

A light receiver 254 is disposed diagonally above the negative carrier 220. The light receiver 254 detects density information of an image photographed on the negative film 12 positioned on the negative carrier 220, and outputs the detected value to the control unit 2.
56. In the control unit 256,
The exposure amount is calculated based on the density information, and the black shutter 238 and the cut filters 242, 244, 246 are controlled in accordance with the calculation result.

The control unit 256 receives the negative film image held by the negative carrier 220 via a half mirror, a zoom lens, a beam splitter, a color image sensor and the like, and receives a color CRT through an image processing unit.
117 is displayed as a simulated image 117A. The focal length of the simulated image 117A is adjusted even if the frame size changes, so that the simulated image 117A always has the same size.

The control unit 256 has a color CRT 117
The data display image 117B is displayed upward. In the data display image 117B, a position mark, a print size, a print magnification, and the like are displayed.

(Explanation of Negative Carrier) Next, the negative carrier 220 will be described with reference to FIG. The negative carrier 220 includes a pedestal 302 and an opening / closing cover 304 as main components.

The pedestal 302 has a negative film transport path 30
6 are formed. A printing opening 312 is provided at the center in the longitudinal direction of the negative film transport path 306, and serves as a passage for printing light from the light source 202 (see FIG. 1) provided in the photographic printing apparatus 10. The size of the printing opening 312 is set so that the full-size image print 22 can be printed on the printing paper 28 via the lens 237. In the negative film transport path 306, transport rollers 320, 322, and 324 correspond to the back surface (lower surface) of the negative film 12 on the upstream side (left direction in FIG. 1) and downstream side (right direction in FIG. 1) of the printing opening 312. It is arranged. Each transport roller 32
0, 322 and 324 are driven in the same rotation direction at the same rotation speed.

In the case of a minilab, a negative feed mechanism is provided on the negative carrier, so that a short negative (one piece) and a piece negative (6 komanega) can be sent.

As shown in FIGS. 4 to 6, a pair of partition plates 344 constituting a negative mask 342 capable of changing the substantial opening area of the printing opening 312 are arranged on the lower surface side of the printing opening 312. Has been established.

The partition plates 344 are located on the same plane with each other.
Are rotatably connected to both ends via pins 347. The pair of partition plates 344 and the pair of links 346
Are connected in parallel with each other via a pin 347 to form a parallel link mechanism. Further, a central portion in the longitudinal direction of the link 346 is fixed to a support shaft 348 which is supported by the pedestal 302. . When the links 346 rotate around the support shaft 348, the pair of partition plates 344 are moved toward and away from each other while being kept parallel to each other, that is, moved in the vertical direction of the printing opening 312 (the width direction of the negative film 12). You. This allows the pair of partition plates 344 to protrude into and out of the printing opening 312 to adjust the opening area of the printing opening 312.

Here, the state in which the partition plate 344 advances to the inside of the printing opening 312 to the solid line state in FIG. 5 and the opening area of the printing opening 312 is reduced corresponds to the H-size image frame 16 of the negative film 12. ing. This printing opening 312
When the partition plate 344 protrudes, both ends of the printing opening 312 in the vertical direction (the width direction of the negative film 12) are shaded, and the remaining opening area corresponds to the size of the H-size image frame of the negative film 12. It is supposed to be.
Further, the state in which the partition plate 344 has advanced to the imaginary line state in FIG. 5 corresponds to the panoramic image frame 14 of the negative film 12. On the other hand, the state in which the partition plate 344 retreats from the printing opening 312 corresponds to the full-size image frame 18 of the negative film 12.

The output shaft of the motor 352 is connected to one link 346 via a pulley 349, a timing belt 350, and a pulley 351 to a support shaft 348. Normally, the link 346 is perpendicular to the partition plate 344 and
2 has been withdrawn. When the motor 352 is energized and operates, the pulley 351 and the timing belt 3
The link 346 and the partition plate 344 are moved in a parallel state via the pulley 349 and the pulley 349, respectively, and the partition plate 344 advances into the printing opening 312 (the solid line state and the imaginary line state in FIG. 5).

The motor 351 is connected to the control unit 256 of FIG. 1 and is controlled by the control unit 256.

As the negative mask 342, various partition plates having different opening areas may be prepared in advance, and the opening area may be changed by exchanging these.

The opening / closing cover 304 shown in FIG. 3 includes a bar 39 having a lower end of a housing-like cover body 390 fixed to the base 302.
2 and can be opened and closed with respect to the pedestal 302 around this bar 392.

At the bottom of the cover body 390, a through hole 396 corresponding to the printing opening 312 is provided.
Also, the cover body 390 is provided with the upper guide base 398 at a position corresponding to the negative film transport path 306 in a closed state.
Is attached, and the negative film guide wall 402 is integrally formed so that a gap is formed between the tip of the guide wall 402 and the guide surface 308. The gap dimension is slightly larger than the thickness of the negative film 12 to secure a transport path at the end in the width direction of the negative film.

Further, idle rollers 410, 412, and 414 are provided between the guide walls 402 corresponding to the transport rollers 320, 322, and 324, and the open / close cover 304 is closed. By doing
The negative film 12 is held between the idle rollers 410, 412, and 414 and the transport rollers 320, 322, and 324, and the transport force can be transmitted to the negative film 12.

At the center of the upper base 404 in the direction of transport of the negative film, an upper mask 420 which is movable relative to the upper base 404 and has an opening at a position corresponding to the through hole 396 is disposed. The upper mask 420 is fixed to a mask base 422 provided on the back side of the upper base 404. Mask base 42
Reference numeral 2 is disposed over substantially the entire bottom surface of the cover body 390, and the solenoid body 423 is fixed thereto.
When the solenoid body 423 is energized, the upper mask 4
20 is moved relative to the upper base 404,
The negative film 12 can be brought into close contact with the printing opening 312 of the negative film transport path 306, and the negative film 12 positioned in the printing optical path PL can be sandwiched.

However, the upper mask 420 is separated from the printing opening 312 except during printing, so that the operator can visually determine the size of the negative film frame at the printing position to determine the frame size. For this purpose, the entire opening / closing cover 304 is separated from the printing opening 312 by the urging force of an elastic body such as a coil spring so that the opening / closing cover 304 and the pedestal 30
Other visible means may be provided, such as making the negative film visible through the gap between the two.

(Explanation of Frame Size Sensor) FIG. 8 shows a frame size sensor 38 provided on the negative carrier 220. The frame size sensor includes a transport roller 320,
322, and has a frame sensor 40, panorama sensors 41 and 42, and H size sensors 43 and 44. These sensors are arranged on a line in the width direction of the negative film 12. The frame sensor 40 is disposed at the center in the width direction of the negative film 12, and the panorama frame 14, H
The negative film density is detected at the position where each of the size frame 16 and the full size frame 18 passes through the screen. Further, the panorama sensors 41 and 42 are displaced from the panorama frame 14 and are disposed inside the full-size frame 18,
The density of the negative film 12 is detected at the position where the H size frame 16 and the full size frame 18 pass through the screen. The H size sensors 43 and 44 are arranged outside the H size frame 16 and inside the full size frame 18, and
2 is detected.

The film density signal from each sensor is sent to the control unit 256 shown in FIG. 1 and is judged by the frame size judgment circuit. In the frame size determination, when each of the H size sensor 44 detects a certain density from the top sensor 40 and the switch is turned on, it is determined that the image is a full size image, and each of the top sensor 40 and the panorama sensors 41 and 42 has a certain density. Is detected and the H size sensors 43 and 44 are turned on.
H size frame 1 when is in the film base density area
6, and only the frame sensor 40 detects a certain density. When the other sensors are in the film base density area, they are determined to be panorama frames.

The frame size thus detected is displayed on the data display image 117B of the color CRT 117. Specifically, when the frame size detected by the frame size sensor is the full-size frame 18, "F" as shown in FIG.
Is displayed for the panorama frame 14, and "H" is displayed for the H size frame.

This will be described in more detail.
The simulated image 117A of the color CRT 117 is a pair of partition plates 344 in the negative mask 342 of FIGS.
Since this is displayed based on the printed image transmitted through the mask opening in between, if the interval between the partition plates 344 is for full size, the full size monitor image 58A of FIG. In the case of panorama use, a panorama size monitor image 58B shown in FIG. 11C in which the width of the monitor image is about half of the full size monitor image 58A is displayed. However, when the interval between the partition plates 344 is set to the full size and the panorama frame 14 of the negative film 12 is arranged at this printing position, the upper and lower sides of the panorama frame 14 are in the film base density region.
A panorama size monitor image 58 as shown in FIG.
Black line portions 60 appear on both sides of B.

On the other hand, in the data display image 117B, the frame size determination circuit determines that the negative film at the printing position has the panorama frame 14, and the display of "P" is displayed on the data display image 117B. Therefore, the operator can determine that the image at the printing position is the panorama frame 14, and is prompted to change the interval between the partition plates 344 of the negative carrier.

On the other hand, the full-size frame 1
In spite of the fact that there are eight, if the distance between the partition plates 344 is wide, FIG.
As shown in FIG. 1 (C), the simulated image 117A is displayed with the upper and lower ends of the full-size image being cut off, and the operator can see the image of the negative film at the printing position by looking at the simulated image. It cannot be determined whether the frame is the frame 18 or the panorama frame 14. Therefore, as shown in FIG. 11D, "F" is displayed on the data display image 117B based on the determination that the frame size determination circuit is the full size image, and the operator is prompted to change the negative carrier.

"F" for displaying such a full-size frame 18, "P" for displaying that it is a panoramic frame 14, and "H" for displaying that it is an H-size frame 16. Is displayed when the frame size determined by the frame size determination circuit is different from the monitor image displayed in the simulated image 117A.
That is, when the monitor image is the panorama size monitor image 58B, or the image frame size determined by the frame size determination circuit is the panorama frame 14, although the size frame detected by the frame size determination circuit is full size. Although it is preferable that these images be displayed when the image displayed in the simulated image 117A is the panorama size monitor image 58B, etc., these are always displayed on the data display image 117B according to these negative frame sizes. It may be displayed.

A keyboard 259 serving as an input means is connected to the control unit 256, and commands for selecting the presence / absence of a mixed mode of various printing sizes and continuous printing of the same size image are sent to the control unit 256.

(Operation of Embodiment) Next, the operation of this embodiment will be described with reference to the flowchart of FIG.

When the negative film 12 is set in the photoprinting apparatus 10, step 501 is completed in FIG. 9, and in step 502, the selection of the presence or absence of the mixed mode is transmitted from the keyboard 259 to the control unit 256. If there is no mixed mode in step 503, that is, if the entire image area of the negative film 12 is an image frame of the same size, in step 504, the transport roller 228 is driven by the motor 232 so that the negative film 1
2 is sent one frame and reaches the printing position. Step 50
In 5, the conveyance roller 212 is driven by the motor 214 to feed a predetermined amount of paper.

The feed amount of the photographic paper is input to the keyboard 259, and if the image frame of the negative film is the panorama size 14, the length is L. If the image frame is the H size frame 16, the length is M and the full size frame 18 is. In this case, the length is only l.

Thereafter, in step 546, the opening size of the photographic paper mask 204 is adjusted to the print size, and in step 510, the photometry of the light receiver 254 is performed, and in step 512, the exposure calculation based on the photometry is performed. Then, when the operator uses the keyboard 259 to instruct exposure correction and printing, a printing process is performed in step 513.

On the other hand, if it is determined in step 503 that the mode is the mixed mode, regardless of the actual printing size,
In step 540, paper is fed by a fixed amount (length 1A) equal to or less than the feed amount (l) corresponding to the minimum size exposure image (full size). This is illustrated in FIGS. 10A to 10B. In FIG. 10A, the full-size image print 600 on which the image has already been printed is sent together with the photographic paper by the length lA, and the image rear end 600B is printed. Optical path PL
To the position of the length (IA / 2). In this embodiment, l
= LA.

At the same time or after this, step 514
Negative frame feed is performed. This negative frame feed is performed by the motor 232 of FIG. 1 feeding the negative film by one frame via the transport roller 228.

Thereafter, in step 541, the frame size is determined. This frame size determination is performed by the sensors of the frame sensors 40 to H size sensor 44 in FIG.

When the determined frame size is different from the size of the printing opening of the negative mask, a display "P" for urging the user to change the mask appears on the data display image 117B of the color CRT, so that the mask change is not forgotten. . In this state, since the negative frame to be printed has already been arranged at the printing position, the operator can visually check the negative frame size and the like, and if the photoelectric detection of the negative frame size by the frame size sensor 38 is wrong, Also, reliable mask replacement is performed.

Here, in step 544, by driving the transport roller 212 of FIG. 1, the shortage of paper is fed. Only the difference from the paper feed length L of the required amount of panoramic size image 26 ((L / 2-lA /
2) length), that is, the downstream end 610 of the exposure area of the panoramic size image print 610 to be exposed.
After the upstream end of the full-size image print 600 is fed to A, the photographic paper mask is adjusted in step 546, the photometry and exposure are calculated by operating the keyboard, and the panoramic image 612 is printed (steps 510 and 51).
2, 513).

On the other hand, if it is determined in step 542 that the frame is not a panorama size, it is determined in step 550 whether the frame is a powerful vision size frame. If the frame is not a powerful vision size frame, the process goes to step 570 because the frame is a full size frame, and the negative mask 342 is adjusted to the full size.
A) is fed, but in this example (l = 1A), the shortage of paper is not actually fed.

In the case of a powerful vision size frame,
In step 551, a powerful size mask set is performed. This mask setting is performed by bringing the partition plates 344 closer to each other as shown by the solid line in FIG. Thereafter, in step 552, only the difference between the paper feed length M of the panoramic size image 26 and the paper feed length 1A in step 540, that is, (M / 2-l /
The shortage of the paper is fed by the conveying roller 212 only for 2), and the process proceeds to step 546, where the H-size frame 620 is printed.

After step 513, the presence or absence of the next frame is determined in step 560. If the next frame exists, the process returns to step 503.

Table 1 shows the shortage paper feed length to be fed the second time when the first fixed-rate feed is set to the length of photographic paper (127 mm) on which a full-size image is printed. It is shown according to the difference from the printing size this time.

Next, the keyboard 25 serving as selection and instruction means
If the same size printing is selected a plurality of times while the mixed mode is selected in step 9, the process proceeds from step 503 to step 504 even though the control unit 256 is in the mixed mode. That is, until the number selected by the keyboard 259 (instructing the number of sheets or pressing the key for the number of sheets) is printed, the process proceeds to step 504 to expose the selected printing size or the previous printing size. Therefore, when printing of the same size is performed, quick work can be performed.

In the above embodiment, a case was described in which a print was obtained at a specific printing magnification from a panoramic image frame, an H size image frame, and a full size image frame of a negative film, but the present invention is not limited to this. The present invention can be applied to printing at a magnification, and can be widely applied when images having different sizes are mixed and printed on a long photosensitive material.

[0076]

[Table 1]

[0077]

As described above, according to the present invention, efficient image printing is possible even when images are continuously printed on a photosensitive material, and loss of the photosensitive material can be eliminated.

[Brief description of the drawings]

FIG. 1 is a schematic layout diagram showing a photographic printing apparatus to which the present invention is applied.

FIG. 2 is a front view showing a negative film to which various image frames used in the present invention have been exposed.

FIG. 3 shows photographic prints of various sizes obtained by the present invention.

FIG. 4 is a front view showing a negative mask used in the present invention.

FIG. 5 is an operation diagram of FIG. 4;

FIG. 6 is a perspective view of FIG. 4;

FIG. 7 is a perspective view showing a printing mask used in the present invention.

FIG. 8 is a plan view showing an arrangement of a frame sensor used in the present invention.

FIG. 9 is a flowchart for implementing the present invention.

FIG. 10 is a plan view showing a paper feeding state according to the present invention.

FIG. 11 is a front view showing a color CRT display according to the present invention.

[Explanation of symbols]

 PL Printing optical path 10 Photo printing device 12 Negative film 14 Panorama frame 16 H size frame 18 Full size image frame 22 Full size image print frame 24 H size image print 26 Panorama size image print 28 Roll photographic paper 38 Frame size sensor 342 Negative mask 600 Full size image print frame 610 Panorama size image print 620 H size image print

Claims (6)

(57) [Claims] 1. A photographic printing paper conveying method for a photographic printing apparatus for performing photographic printing in which a printing size can be changed while printing a plurality of images using the same photographic paper roll, wherein the photographic paper is fed quantitatively. In the first step, after the printing size is determined, if the printing paper length of the printing section is longer than the predetermined amount and there is a shortage in the printing section length, the shortage is sent. A second step of not sending, a third step of printing an image on photographic paper after the second step,
A photographic paper conveying method comprising: 2. The photographic paper conveying method according to claim 1, wherein after the first step, an operator can visually check a negative film frame in the printing unit. 3. A frame feed of a negative film in a state where the photographic paper is fed in a fixed amount in the first step.
The photographic paper transport method described in 1. 4. The photographic paper conveying method according to claim 1, wherein after the first step, means for changing the photographic paper mask size is driven after the printing size is determined. 5. The photographic paper transporting method according to claim 1, wherein the frame size of the negative film is detected and displayed while the photographic paper is being fed in a fixed amount in the first step. 6. A photographic printing apparatus for performing photographic printing in which the photographic printing size can be changed during photographic printing using the same photographic paper roll, a first conveying means for feeding a fixed amount of photographic paper, and a printing size. Means for determining the printing size, and, after the printing size is determined, if the printing paper length of the printing section is longer than the fixed amount and there is a shortage in the printing paper length, this shortage is sent and the shortage is eliminated. A photographic printing apparatus comprising: a second conveying unit that does not send photographic paper; and an image printing unit that prints an image on photographic paper after the photographic paper is conveyed by the second conveying unit.