JPH07295113A - Photographic printing paper carrying method and photographic printer - Google Patents

Abstract

PURPOSE:To obtain a photographic printing paper printing method capable of eliminating a void between images even if the images are consecutively printed on a roll photographic paper. CONSTITUTION:The photographic printing paper is fed (B) by a fixed feeding length 1A after the previous image was printed (A) and before the next image is printed and when there is a shortage compared with the next image printing length L or M, the photographic printing paper is fed by the length of the shortage (C) and (D) and then the image is printed. When the shortage does not exit, the image is printed without the feeding of an addition, so that quick efficient printing work can be, carried out.

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 photographic printing paper which are applied to a photographic printing apparatus capable of changing a printing size while printing plural images using the same photographic printing 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 printing paper as a photosensitive material, it is efficient to print the same image or different images continuously on a roll-shaped photographic printing paper. Good baking is done.

The photographic printing paper having the image printed thereon is developed by a developing device and then cut into individual images to form a product print.

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

However, such original images having different print sizes are not limited to the case where image frames of the same size are continuously photographed on a negative film, but a negative image in which image frames of various sizes are mixed is used. There is a film.

When such image frames of different sizes are mixed, the printing apparatus sends the printing paper by a feed amount that allows the printing size of the image printed immediately before to be exposed next time when printing on the printing paper. After printing, the next image is printed.

Therefore, in the conventional method of printing image frames on photographic paper, when the feed amount by the previous print image is large (for example, panorama size image) and the photographic paper feed length by the next print image is short (for example, it is powerful). Since the printing paper is sent larger than the actual printing range for vision images and full-size images), a blank area where the image is not exposed appears between consecutive images, and the printing paper is used wastefully. Will be done.

This blank portion corresponds to 1/2 of the difference in image length, and the largest of the three types is when the full size image is printed next to the panoramic size image.
The size is 5 mm, which is the smallest when a full-size image is printed next to the powerful vision size, and a blank area of 15.5 mm exists between the images.

An apparatus has also been proposed in which the print size is detected in advance and the feed amount is adjusted in two steps (Japanese Patent Laid-Open No. 5-21853).
No. 333444), the printing size data must be detected and stored in advance, and the feed amount must be calculated each time.

[0010]

SUMMARY OF THE INVENTION In consideration 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 images when continuously printing images on a light-sensitive material. Is.

[0011]

SUMMARY OF THE INVENTION The invention according to claim 1 of the present application is a photographic printing in which the printing size can be changed during the photographic printing of a plurality of images using the same printing paper roll. A method for conveying photographic paper in a device, comprising: a first step of quantitatively feeding the photographic paper; and, after the printing size has been determined, the photographic printing paper length of the printing section is longer than the above-mentioned fixed amount and there is a shortage in the photographic printing paper length. It has a second step of sending the deficient portion and sending no photographic paper if there is no deficient portion, and a third step of printing an image on the photographic paper after the second step.

The invention according to claim 2 of the present application is the first aspect of the invention.
After the process, the operator can visually check the negative film frame in the printing portion.

The invention according to claim 3 of the present application is the first aspect.
The feature is that the negative film is fed frame by frame while the photographic paper is fed quantitatively in the process.

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

The invention according to claim 5 of the present application is the first aspect.
The feature is 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 capable of changing the printing size during the course of photographic printing using the same photographic printing paper roll. The first conveying means for sending, the printing size determining means for determining the printing size, and the printing paper length which is longer than the above-mentioned fixed amount after the printing size is fixed, and there is a shortage in the printing paper length. A second transport means for sending the shortage and not sending the print paper if there is no shortage, and an image printing means for printing an image on the print paper after the print paper is transported by the second transport means. To do.

[0017]

In the invention according to claim 1 of the present application, the printing paper is fed in a fixed amount when the previous image printing is completed. This feeding may be before the feeding of the negative film, or at the same time or after the feeding of the negative film. This feed amount is a predetermined constant amount. When the actual print size of the next frame is determined, the shortage of photographic paper feed is sent. This shortage is the shortage of the printing portion printing paper length when the printing portion printing paper length required for the actual printing size is longer than the fixed amount of printing paper length that has already been sent. . If there is no shortage, printing paper is sent without printing.

Therefore, according to the present invention, after the last printing operation is completed, even if the printing size for the next printing is not determined, the printing paper can be conveyed in a fixed amount and the printing paper can be fed quickly. In the second transportation, only the shortage is sent, or when there is no shortage, it is not necessary 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 portion after the photographic printing paper is conveyed by a fixed amount, so that the operator can accurately determine the actual printing size. This operator changes the photographic paper mask size by exchanging or adjusting the photographic paper mask size based on the visually observed printing size. The photographic paper mask size may be changed by an operator directly changing the mask size or by operating the selection button to drive the photographic paper mask by a driving force such as a motor.

According to the third aspect of the invention, the negative film is fed frame by frame while the photographic printing paper is fed in a fixed amount.
For this reason, the negative film is quickly fed,
If the negative film is sent and the next printing piece moves to the printing position, the operator can see this negative film piece,
You can check the frames that need to be burned, and skip unnecessary frames. This operator changes the photographic paper mask size when necessary, based on the visually printed size of the frame determined to be necessary. In addition, the number of feeds of only the negative film that is recognized as the printing required frame becomes equal to the number of feeds of the photographic paper, which eliminates mistakes and waste printing.

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

In the invention according to claim 5, the frame size of the negative film is detected and displayed in the state where the photographic paper is fed in a fixed amount in the first step, and this display determines the next printing size. It is used as information for. This information is also used to visually confirm the next print size.

In the invention according to claim 6, when the first conveying means quantitatively sends the printing paper, the printing size determining means determines the printing size. After the printing size is determined, the second conveying means sends the printing paper length when the printing paper length is longer than the fixed amount and the printing paper length is insufficient, and the printing paper is sent when there is no shortage. The image is printed on the photographic paper after the photographic paper is conveyed by the second conveying means without being sent. The first and second transporting means may sandwich the photographic printing paper by rollers and rotate it by the driving force of the motor to transport the photographic printing paper. The first of these,
The same carrying roller can be used for the second carrying means.

[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 include a panorama frame 14, an H (powerful vision) size frame 16 and a full size frame 18.
There are types. There is. The negative film 12 is a 35 mm photographic film, and the panorama frame 14 has vertical and horizontal dimensions of 13 mm.
The image size is 36 mm, and the H size frame 16 is 19 ×
36 mm, full size frame 18 is 26 x 36 mm. The negative film 12 is developed and exposed to image frames, and then continuously printed on the long photographic paper 28 (see FIG. 1).

FIG. 3 shows the size of the image size (exposure size) obtained after these images are printed on the printing paper at the printing position. FIG. 3A shows the full-size image print 22 (length l). ), (B) shows an H size image print 24 (length M), and (C) shows a panoramic size image print 26 (length L), which are long photographic papers 28 having the same width dimension. It is obtained by continuously printing the image, developing it, and cutting it for each image print. In this embodiment, the vertical and horizontal dimensions of each print are 89 × 127 mm for the full size image print 22, and the H size image print 2
4 x 89 x 158 mm, panoramic image print 26
It is 89 × 254 mm.

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

(Description of Photographic Printing Apparatus) FIG. 1 shows an example of a photoprinting apparatus 10 for a large laboratory to which the present invention is applied. A photographic printing paper mask 204 is arranged at the uppermost position in the printing optical path PL, which is the optical axis of the light emitted from the light source 202 of the photographic printing apparatus 10, and holds a part of the long photographic printing paper 28 for printing. It is fixed in position. This photographic paper mask 2
In 04, the mask interval can be changed according to the print size, and specifically, the mask interval can be adjusted or replaced with a mask having another mask interval. Both of the long photographic printing papers 28 are wound in layers on the rotary shafts 208 and 210 to form a roll, and a pair of conveying rollers 212 are installed on the downstream side of the photographic printing paper mask 204 to print. It holds the paper 28. 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 edge of the photographic printing paper is pulled out from the outer circumference of one roll-shaped winding unit (the left-side layered winding unit in FIG. 1) and wound on the other rotary shaft 210.

The unwinding rotary shaft 208 and the photographic paper mask 2
The printing paper 28 between 04 and 04 is wound around the tension roller 216. Further, a tension roller 218 is also provided on the downstream side of the transport roller 212, and the photographic printing paper 28 is wound around the tension roller 218. These tension rollers 216,
The reference numeral 218 is movable in the direction perpendicular to the axis thereof, so that the tension during conveyance of the printing paper is kept constant.

The printing optical path PL below the photographic paper mask 204
Above, the 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 with each other into a long shape and processed by a so-called cine development method, and both of them are rotated by the rotary shaft 2.
The negative film 12 is sandwiched between 24 and 226, and a pair of transport rollers 228 is installed on the downstream side of the negative carrier 220 to 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 section (the left winding section in FIG. 1), and the other rotary shaft 226.
Wind up.

Unwinding rotary shaft 224 and negative carrier 2
The negative film 12 between 20 and 20 is the tension roller 2
It is wrapped around 34. Further, a tension roller 236 is also provided on the downstream side of the transport roller 228, and the negative film 12 is wound around the tension roller 236. These tension rollers 234 and 236 are movable in the direction perpendicular to their axes, and keep the tension during the conveyance of the negative film 12 constant.

In the case of a minilab, since each negative film is sent by a negative carrier, a tension mechanism or the like is unnecessary. In addition, a piece negative film (6
Similarly, the tension mechanism is not required for Komanega etc.).

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

The lens 237 is movable along the optical path PL in response to the drive signal from the driver 239, so that the enlargement magnification can be changed.
The enlargement magnification is changed by the lens 237 by the driver 239, but the enlargement magnification is increased in the order of the full size, the powerful size, and the panoramic size, and the position thereof is constant. Therefore, the three positions of the full size, the powerful size, and the panorama size may be stored in advance and the position may be set to any one of the positions according to the signal from the control unit.

Between the negative carrier 220 and the light source 202, cut filters 242, 244 and 246 of C (cyan), M (magenta) and Y (yellow) colors are arranged. These cut filters 242, 244, 2
46 is inserted into or removed from the optical path PL according to 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 the density information of the image photographed on the negative film 12 positioned on the negative carrier 220, and the detected value is detected by the controller 2
It is designed to be supplied to 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 according to 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, etc., and a color CRT via an image processing unit.
A simulated image 117A is displayed on 117. The simulated image 117A is adjusted to have the same focal length even if the frame size is changed so that the simulated image 117A always has the same size.

Further, the control unit 256 controls the color CRT 117.
A data display image 117B is displayed on the top. In this data display image 117B, a position mark, a print size, a print magnification, etc. are displayed.

(Description 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 parts.

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

In the case of a minilab, a negative carrier is provided with a negative feeding mechanism so that a short negative (one piece) and a piece negative (6 maneges, etc.) can be fed.

As shown in FIGS. 4 to 6, a pair of partition plates 344 forming a negative mask 342 capable of changing the substantial opening area of the baking opening 312 is arranged on the lower surface side of the baking opening 312. It is set up.

The partition plates 344 are located on the same plane with each other, and further, each end has a pair of links 346.
Are rotatably connected to both ends of the pin via pins 347. The pair of partition plates 344 and the pair of links 346.
Are connected in parallel to each other via a pin 347 to form a parallel link mechanism. Further, the center portion in the longitudinal direction of the link 346 is fixed to a support shaft 348 pivotally supported by the pedestal 302. . When each link 346 rotates around the support shaft 348, the pair of partition plates 344 move toward and away from each other in a state of being parallel to each other, that is, in the vertical direction of the printing opening 312 (width direction of the negative film 12). It As a result, the pair of partition plates 344 appear and disappear in the baking opening 312, and the opening area of the baking opening 312 can be adjusted.

Here, the state where the partition plate 344 has advanced to the inside of the printing opening 312 to the solid line state of FIG. 5 and the opening area of the printing opening 312 has been reduced corresponds to the H size image frame 16 of the negative film 12. ing. This baking opening 312
When the partition plate 344 projects to the inside, the both ends of the printing opening 312 in the vertical direction (the width direction of the negative film 12) are shielded from light, 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 done.
Further, the state where the partition plate 344 has further advanced to the imaginary line state of 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 has retracted 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 the support shaft 348 via the pulley 349, the timing belt 350, and the pulley 351 to the one link 346. Normally, the link 346 is formed at a right angle to the partition plate 344 so that the seizure opening 31
It is in a state of exiting from 2. When the motor 352 is energized and operates, the pulley 351 and the timing belt 3
Each link 346 and each partition plate 344 are moved in parallel via 50 and the pulley 349, and the partition plate 344 advances into the printing opening 312 (solid line state and 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 them.

The open / close cover 304 shown in FIG. 3 is a bar 39 in which the lower end of a cover body 390 having a housing shape is fixed to the pedestal 302.
It is pivotally supported by 2 and can be opened and closed with respect to the pedestal 302 about this bar 392.

A through hole 396 corresponding to the printing opening 312 is provided at the bottom of the cover body 390.
In addition, the cover main body 390 is closed, and an upper guide base 398 is provided at a position corresponding to the negative film conveyance path 306.
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. Further, this gap size is slightly larger than the thickness of the negative film 12 and secures a conveyance path at the end of the negative film in the width direction.

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

An upper mask 420, which is movable relative to the upper base 404 and is provided with an opening at a position corresponding to the through hole 396, is arranged at a central portion of the upper base 404 in the negative film conveying direction. The upper mask 420 is fixed to a mask base 422 arranged on the back side of the upper base 404. Mask base 42
2 is provided almost all over the bottom surface of the cover body 390, and the solenoid body 423 is fixed.
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 on the printing optical path PL can be held.

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

(Description of Frame Size Sensor) A frame size sensor 38 provided in the negative carrier 220 is shown in FIG. This frame size sensor is composed of a conveyance roller 320,
It is provided between 322 and has a coma sensor 40, panoramic sensors 41 and 42, and H size sensors 43 and 44. Each of these sensors is arranged on a line in the width direction of the negative film 12. The frame sensor 40 is arranged at the center of the negative film 12 in the width direction, and the panorama frames 14, H
The negative film densities are detected at the positions passing through the respective screens of the size frame 16 and the full size frame 18. The panorama sensors 41 and 42 are arranged outside the panorama frame 14 and inside the full-size frame 18,
The density of the negative film 12 is detected at a position where the H size frame 16 and the full size frame 18 pass through the screen. Further, the H-size sensors 43 and 44 are arranged outside the H-size frame 16 and inside the full-size frame 18, respectively.
A concentration of 2 is detected.

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

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 a full size frame 18, as shown in FIG. 11, “F” is displayed.
"P" is displayed for the panorama frame 14, and "H" is displayed for the H size frame.

This will be described in more detail with reference to FIG.
The color CRT 117 simulated image 117A is a pair of partition plates 344 in the negative mask 342 of FIGS.
Since this is displayed based on the printing image that has been transmitted through the mask opening between, the full size monitor image 58A of FIG. 11A is displayed when the spacing of the partition plates 344 is for full size. When used for a panorama, the panoramic size monitor image 58B of FIG. 11C in which the width dimension 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 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.
As shown in (B), the panorama size monitor image 58
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 portion. Therefore, the operator can determine that the image at the printing position is the panorama frame 14, and is prompted to change the interval of the partition plate 344 of the negative carrier.

On the contrary, the full-size frame 1 is placed on the printing optical path PL.
Despite the fact that there are eight, if the spacing between the partition plates 344 is wide, FIG.
As shown in FIG. 1 (C), the simulated image 117A is displayed with both the upper and lower edges of the full-size image removed, and the operator only sees the simulated image, and the image of the negative film at the printing position is full-sized. It cannot be determined whether it is the frame 18 or the panorama frame 14. Therefore, as shown in FIG. 11D, "F" is displayed in 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 the panorama frame 14, and "H" for displaying the H size frame 16 are displayed. 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, although the size frame detected by the frame size determination circuit is full size, 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. However, it is preferable to display each of them when the image displayed as the simulated image 117A is the panorama size monitor image 58B, etc., but these are always displayed on the data display image 117B according to the negative frame size. It may be displayed.

A keyboard 259, which is an input means, is connected to the control unit 256, and commands such as selection of the presence or absence of a mixed mode of various printing sizes and continuous printing of images of the same size are issued 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 photographic printing apparatus 10, step 501 in FIG. 9 is completed, 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. Here, if there is no mixed mode in step 503, that is, if all the image areas of the negative film 12 are image frames of the same size, the negative roller 1 is driven by the motor 232 in step 504.
One frame of 2 is sent and reaches the printing position. Step 50
In 5, the motor 214 drives the conveying roller 212 to feed a fixed amount of paper.

The feed amount of this printing paper is input to the keyboard 259, and if the negative film image frame is the panorama size 14 the length L, if the H size frame 16 is the length M, the full size frame 18 For example, the length is only 1.

After that, in step 546, the opening size of the photographic printing paper mask 204 is adjusted to the print size, and in step 510 photometry is performed by the light receiver 254, and in step 512, the exposure amount calculation is performed based on this photometry. Therefore, when the operator uses the keyboard 259 to instruct exposure amount correction or printing, printing processing is performed in step 513.

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

At the same time or after this step 514
The negative frame feed is done with. This negative frame feeding is performed by the motor 232 of FIG. 1 feeding the negative film one frame through the conveying roller 228.

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

When the determined frame size and the size of the printing opening of the negative mask are different from each other, the display "P" for prompting the mask replacement appears in the data display image 117B of the color CRT, so that the mask replacement will not be forgotten. . In this state, since the negative frame to be printed has already been arranged at the printing position, the operator can visually confirm the negative frame size and the like, and when the photoelectric detection of the negative frame size by the frame size sensor 38 is wrong. The mask is surely replaced.

In step 544, the conveyance roller 212 of FIG. 1 is driven to feed the shortage of paper. Only the difference from the required amount of the paper feed length L of the panorama size image 26 ((L / 2-lA / in FIG. 10C)
2)), that is, the exposure area downstream end 610 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 printing paper mask is adjusted in step 546, the photometry and the exposure amount 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 size is not the panorama size, it is determined in step 550 whether the size is a powerful vision size frame. If it is not a powerful vision size frame, it is a full size frame, so the process proceeds to step 570, the negative mask 342 is adjusted to full size, and in step 571 the shortage (l-1
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 close to each other as shown by the solid line in FIG. Then, 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 / in FIG. 10D).
Only 2), the shortage of paper is fed by the conveying roller 212, and the process proceeds to step 546 to print the H size frame 620.

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

In Table 1, when the first fixed-quantity feed is the printing paper length (127 mm) for printing a full-size image, the shortage of paper feed length to be sent the second time is defined as the previous printing size. It is expressed according to the difference from the size of this time.

Next, the keyboard 25 which is a selection / instruction means
When the same size printing is selected a plurality of times during the mixed mode selection by 9, the control unit 256 proceeds from step 503 to step 504 regardless of the mixed mode. That is, the printing of the selected printing size or the previous printing size is performed through step 504 until the number of sheets selected by the keyboard 259 (commanding the number of sheets or pressing the key for the number of sheets) is printed. For this reason, quick work can be performed when the same size is printed.

In the above embodiment, the case where a print is obtained from a negative film panorama image frame, H size image frame, or full size image frame at a specific printing magnification is described, but the present invention is not limited to this, and any printing is possible. It can be applied to printing at a magnification, and can be widely applied when printing images of different sizes mixedly printed on a long photosensitive material.

[0076]

[Table 1]

[0077]

As described above, the present invention enables efficient image printing even when images are continuously printed on a light-sensitive material and eliminates loss of light-sensitive material.

[Brief description of drawings]

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

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

FIG. 3 is a diagram showing photographic prints of various sizes obtained according to the present invention.

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

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

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

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

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

FIG. 9 is a flow chart for implementing the present invention.

FIG. 10 is a plan view showing a paper feed 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 Photographic optical path 10 Photographic 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 printing 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)

[Claims] 1. A photographic printing paper conveying method for a photographic printing apparatus, wherein the printing size can be changed during the printing of a plurality of images using the same photographic printing paper roll. After the printing size is determined in the first step, the length of printing paper is longer than the above-mentioned fixed amount, and if there is a shortage in printing length, this shortage is sent. A second step of not sending, and a third step of printing an image on photographic paper after this second step,
A method of conveying photographic paper, comprising: 2. The photographic printing paper conveying method according to claim 1, wherein after the first step, an operator can visually check the negative film frame in the printing section. 3. The frame feeding of the negative film is performed while the photographic printing paper is quantitatively fed in the first step.
The method for conveying photographic paper described in. 4. The printing paper conveying method according to claim 1, 2 or 3, wherein after the first step, a unit for changing the printing paper mask size is driven after the printing size is determined. 5. The photographic printing paper conveying method according to claim 1, wherein the frame size of the negative film is detected and displayed while the photographic printing paper is being fed quantitatively in the first step. 6. A photographic printing apparatus for performing photographic printing, wherein the photographic printing can be changed on the way of photographic printing using the same photographic printing paper roll, the first transporting means for quantitatively feeding the photographic printing paper, and the printing size. After the printing size is fixed, if the printing paper length is longer than the above-mentioned fixed amount and there is a shortage in the printing paper length, this shortage is sent and the shortage must be made. For example, 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 the photographic paper after the photographic paper is conveyed by the second conveying unit.