JPH0312654A - Method and device for observing back printing of photographic paper - Google Patents

Abstract

PURPOSE:To easily observe the content of back printing corresponding to an image plane by simultaneously observing an image printed on the front side of a photographic paper and a character such as a frame number printed on the back side of the photographic paper in a state where they are made to correspond to each other. CONSTITUTION:A bracket 50 is fixed to a fitting shaft 43 and a fixed mirror 51 is mounted to the bracket 50 in the conveying direction of a color paper 10. An aperture 64 is formed in the center part of a moving frame 57 and a moving mirror 67 is mounted to the aperture 64 through brackets 65 and 66. In the case of observing the back printing of the photographic paper on a conveyance path 30, the back printed image is reflected in a horizontal direction by the mirror 51. Then, the reflected light is reflected by the mirror 67 and passes by the conveyance path 30. Therefore, the back printing of the photographic paper is observed corresponding to the image to which the back printing is performed. Thus, the image and the character such as the frame number corresponding to the image are easily confirmed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method and apparatus for observing printing on the back side of photographic paper, and is particularly used when printing frame numbers, etc. on the back side of developed photographic paper. The present invention relates to a method and apparatus for observing printing on the back side of photographic paper.

[Conventional technology]

Recently, it has become desirable to print the frame number of the negative film, the density at the time of printing exposure, the amount of color balance correction, etc. on the back side of the printed photograph.

For this reason, it has been considered to provide a printing device for printed photographs within a printer processor, or to provide a printing device that prints at high speed on the back side of developed photographic paper.

In this case, in order to print data such as a frame number on the back of each frame, the cut mark recorded in the margin between each frame is detected, the frame position is determined based on this detection signal, and the frame position is determined based on this detection signal. Back printing is performed at a predetermined position on the back of the frame based on the frame position.

[Problem to be solved by the invention]

However, if for some reason the cut mark is not detected, if you continue printing, the print data such as the frame number will be printed out of sync, and the frame and
There is a problem in that the data printed on the back side of this frame no longer corresponds.

In this case, if you try to observe the contents of the back print, the photographic paper is usually conveyed with the image recording side facing up, so there is a problem that the contents of the back print are difficult to read. When conveying with the back side facing down, the back printing is on the top side, and although the content of the back printing becomes easier to read, there is a problem in that it becomes difficult to observe the image.

The present invention is intended to solve the above-mentioned problems, and an object of the present invention is to provide a method and apparatus for observing printing on the back side of photographic paper, which allows the contents of the printing on the back side to be easily observed in correspondence with the screen.

[Means to solve the problem]

In order to achieve the above object, the present invention makes it possible to simultaneously observe images printed on the front side of photographic paper and characters such as frame numbers printed on the back side of the photographic paper in a corresponding state. It is something. Another invention provides a conveyance path for conveying photographic paper on which a plurality of images are printed so that it can be observed from above, and a first conveyance path for horizontally reflecting reflected light from the printing position of the photographic paper below the conveyance path. mirror, and a second mirror that reflects the light from the first mirror upward and passes it beside the conveyance path.
It is equipped with a mirror.

[Effect]

When observing the back print of photographic paper on the conveyance path, the image of the back print is reflected in the horizontal direction by a first mirror, and this reflected light is reflected by a second mirror and passes sideways on the conveyance path. do.

Thereby, it is possible to observe the printing on the back of the photographic paper in correspondence with the image printed on the back.

〔Example〕

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

FIG. 2 shows a printing device 13 that detects the cut mark 11 of the developed color paper 10 and prints the frame number and printing exposure data corresponding to the negative film on the corresponding frame 12. . The printing device 13 includes an IC that stores the frame number and printing exposure data for each frame layer.
An insertion slot 16 for a memory card 15 is provided. IC
In the memory card 15, in a printer (not shown),
For each frame layer, a frame number corresponding to the negative film and data on the amount of exposure correction when this frame is printed and exposed are written.

The strip-shaped color paper 10 that has been printed and exposed in a printer and then developed is wound onto a reel 18 and passed through a print photo verification device (not shown), where an NG mark is placed on defective prints. After this, it is set on the rewind shaft 19 of the printing device 13. The color paper 10 rewound from the reel 18 has a cut mark 11 and an NG mark (not shown) detected by the cut mark and NG mark detection section 20 . Based on this mark detection signal, the printing unit 23 prints the frame number and exposure correction data of the corresponding frame. After printing, the paper is wound onto the take-up reel 24. The printed color paper 10 is removed from the winding shaft 25 together with the reel 24, and is cut frame by frame using a cut mark 11 as a reference by a cutting device (not shown).

As shown in FIG. 2, the printing section 23 includes a platen roller 26 and a printing mechanism 27 arranged so that the color paper 10 is sandwiched between the platen roller 26.

A conveyance path 30 for Colorhaver IQ is formed between the mark detection section 20 and the printing section 23. In this conveyance path 30, a photographic paper back print observation device according to the present invention is arranged. In addition, the mark detection section 20 and the printing section 2
3 are provided with manual dials 31 and 32 for reversing the color paper 10. These manual dials 31 and 32 are used when the controller (not shown) of the printing device 13 issues a cut mark detection failure alarm. The cut mark detection failure alarm is issued when the next cut mark is not detected even after the cut mark sensor detects the cut mark 11 and the color paper 10 is fed for the length of the frame. , the conveyance of the color paper is stopped, and printing is also stopped. In such a state, the manual dial 31, 32
Turn the part that has already been printed by the printing unit 23 to the conveyance path 3.
Return it to 0 and observe the back print in correspondence with the image.

As shown in FIGS. 1 and 3, the conveyance path 30 includes fixed guide plates 35 to 38 arranged in the conveyance direction of the color paper 10 and movable guide plates 40 and 41. The fixed guide plates 35 to 38 are attached via a shaft 43, arranged at a predetermined pitch in the width direction of the color paper IO, and fixed to the fixed plate 45. Fixed plate 4
5 is fixed to a machine frame 47 on the printing device side via a bracket 46 or the like.

A bracket 50 is fixed to the shaft 43, and a fixed mirror 51 is attached to the bracket 50 in the direction in which the color paper 10 is conveyed. The fixed mirror 51 is attached by a bracket 50 at an angle of 45° to the surface of the color paper 10 on the conveyance path 30, and the fixed mirror 51 is attached to the surface of the color paper 10 on the conveyance path 30 so that the back printed image recorded on the color paper 10 is displayed in the width direction of the color paper 10. reflect. Further, a lamp 53 is attached to the bracket 50 to illuminate the printed portion on the back side. A lamp cover 54 is attached to the lamp 53, and reflects the light from the lamp 53 to the back printed portion.

The movable guide plate 40.41 is fixed to the movable plate 55 via a shaft 59. The moving plate 55 is attached to a moving frame 57 via a bracket 56. moving frame 5
7 is movable in the width direction of the color paper 10 by means of a guide rod 60 which is placed between the machine frames 47 and 58. Thereby, the moving frame 57 can be positioned according to the width of the color paper IO.

Paper guides 61 and 62 are attached to the fixed plate 45 and the movable plate 55 at positions spaced apart from the upper surface of the guide plate by the thickness of the color paper 10 above each guide plate. The paper guides 61 and 62 are made of a transparent acrylic plate so as not to hide the upper and lower sides of each frame 12 printed on the color paper 10. Press the color paper 10 from above.

An opening 64 is formed in the center of the movable frame 57, and a movable mirror 67 is attached to this opening 64 via brackets 65 and 66.

The movable mirror 67 is arranged at an angle of approximately 45° with respect to the back surface of the color paper 10 by means of brackets 65 and 66, and reflects the back printed image reflected from the fixed mirror 51 upward. The brackets 65 and 66 are attached to each other by screws 68, and by changing the angle of attachment, the direction in which the back print image is reflected can be finely adjusted.

Next, the operation of this embodiment will be explained. The developed color paper 10 is wound up and passed through the printing device 1.
3 on the rewinding shaft 19, and feed its tip to the initial position. The controller of the printing device 13 detects the cut mark 11 and drives the printing mechanism 31 based on this signal and the frame number and exposure correction value data stored in the IC memory card 15. Thereby, the frame number and exposure correction data are printed on the back side of each frame based on the cut mark detection signal. If the cut mark 11 is detected without any abnormality, printing is performed at high speed on the back side of each frame based on the cut mark 11.

However, if the distance between frames is greater than a predetermined value, the cut mark detection failure alarm is issued, and printing is interrupted. In this case, turn the manual dials 31 and 32 to remove the already printed color paper 1.
The final printed portion of 0 is returned to the conveyance path 30. As a result, the final printed part is set on the conveyance path 30, so
The back printed image illuminated by the lamp 53 is displayed on the fixed mirror 5.
1 and the moving mirror 67, it is possible to observe the printed content on the back side of this frame in correspondence with the image of the frame on the color paper 10. Therefore, by confirming the observed back print content, newly inputting this information into the controller, and setting the color paper to the initial position, back printing can be started again.

In this embodiment, since the movable mirror 67 is fixed to the moving guide side of the color paper 10, the color paper l
Even if the width of O changes, the back printing can always be observed in correspondence with each frame 12 of the color paper 10. Moreover, since the image reflected by two mirrors is observed, the image is not a left-right reversed image but a right-left right image, making it easier to read the back print.

In the above embodiment, a fixed mirror 51 and a movable mirror 67 were provided in order to read the frame number, but in addition to this, the back side printing such as exposure correction data etc. can be observed at the same time. It is also possible to provide third and fourth mirrors 70° and 71 as shown by two-dot chain lines.

Further, in the above embodiment, the mark detection section 20 and the printing section 23
A transport path 30 for observing the back print was provided between the
This may be provided on the color paper exit side of the printing section 23. By doing so, there is no need to turn the manual dials 31 and 32 to reverse the color paper 10, and the configuration can be simplified.

Further, in the above embodiment, two mirrors, the fixed mirror 51 and the movable mirror 67, are provided in order to observe the back printing, but the present invention is not limited to this.
It is also possible to provide an imaging means such as a V-camera and display the image on a CRT placed close to the color paper transport path.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to simultaneously observe an image printed on the front side of photographic paper and characters such as frame numbers printed on the back side of the photographic paper in a corresponding state. This makes it easier to confirm the image and the corresponding characters such as frame numbers.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing the main parts of a back print observation device for photographic paper according to the present invention. FIG. 2 is a perspective view showing the overall appearance of the printing device equipped with a back print observation device. FIG. 3 is a perspective view showing the main parts of the back print observation device. Color paper cant mark printing device fixed mirror (first mirror) moving mirror (second mirror).

Claims (2)

[Claims] (1) The back side of photographic paper characterized in that the image printed on the front side of the photographic paper and the characters such as frame numbers printed on the back side of the photographic paper can be observed simultaneously in a matched state. Print observation method. (2) a conveyance path that conveys photographic paper on which a plurality of images are printed so that it can be observed from above, and a first mirror that reflects light reflected from the printing position of the photographic paper in the horizontal direction below this conveyance path; What is claimed is: 1. A back print observation device for photographic paper, comprising: a second mirror that reflects light from the first mirror upward and allows it to pass beside a conveyance path;