JPH07111538B2 - Photo printing equipment - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic printing apparatus for reprinting by retrieving an image pattern from a printing paper which has been determined to be defective when the printing paper is reprinted.

[Prior art]

Generally, in a photographic printing apparatus, the transmitted light of a light source transmitted from an original image film is irradiated onto a photographic printing paper through a lens unit to be exposed. In the printing apparatus used for printing a color print, a light beam from a light source reaches an original film through a light control filter including complementary color filters of yellow (Y), magenta (M), and cyan (C). It is like this.

Here, an image density sensor composed of an optical sensor such as a photodiode is provided between the original film and the lens unit so that the image density information of the original film can be detected.

This image density information is sent to the exposure controller, the exposure amount of each color is calculated by the following equation, and the photographic printing process can be performed with the optimum exposure amount suitable for the original image film. This is based on the well-known Evans theorem.

logE _i = logE _Ni + C _j (D _Nj −D _NNj ) ... (1) where E: exposure amount of original image film E _N : exposure amount of standard original image film C: correction coefficient according to density of original image film D _N : original image Film LATD D _NN : Standard original film LATD i: Red, green, or blue color j: Y, M, or C By the way, in such a photo printing device The finished state is visually determined, and if the finished photographic paper is determined to be defective, it is reprinted. This judgment is made after printing a series of original image films, and only the printing paper judged to be defective is extracted and reprinted.

By the way, when the image frame of the original image film is positioned at the exposure position, the defective printing paper is provided with an identification code corresponding to the pattern number of the corresponding image frame, and the worker stores the identification code and then Relying on memory, the original film is transported and positioned.

[Problems to be solved by the invention]

However, as described above, if the image frame of the original film is positioned at the exposure position depending on the memory of the worker, a different image frame may be positioned at the exposure position, resulting in a work error. Further, it is difficult to confirm the pattern number attached to the original image film after positioning because of the space of the printing apparatus, and therefore it is only after the printing that the working error can be found.

In addition, since the printing at the time of reprinting is not always performed in the order of consecutive numbers, an identification code that can be collated with the image pattern of the original image film on the photographic paper after reprinting unless the operator manually operates each time. Could not be attached.

In consideration of the above facts, the present invention is capable of accurately and quickly positioning an image pattern corresponding to defective printing paper at an exposure position, and facilitating collation of a reprinted printing paper or the like with an original film. The purpose is to obtain a device.

[Means for solving problems]

A photographic printing apparatus according to the present invention has a base and a lid that are openably and closably connected to each other, and a detector that detects an open / closed state of the base and the lid, and corresponds to each continuous original image pattern. The original image film to which the exposure number is attached, and the original image film of the original image film is subjected to printing processing by the original image film and an identification code corresponding to the exposure number is given to each original image A holding device for holding the print divided into two parts, a pattern number reading device for reading the pattern number of each original image pattern of the original film, a density measuring device for measuring the density of the original image pattern of the original film, and the print Identification code reading device for reading the identification code of the original image, a conveying device for conveying the original image film, and the identification code reading device for printing when the closed state of the holding device is detected by the detector. A control device for controlling the conveying device to automatically position the original image frame to frame numbered corresponding to the identification code read read the exposure position,
Printing means for printing the original image pattern on the photographic paper based on the density of the original image pattern.

[Action]

The photographic printing apparatus of the present invention has a holding device, and the holding device has a base and a lid body which are openably and closably connected, and a detector for detecting the open / closed state of the base and the lid body. ing. The holding device holds an original image film with a number corresponding to each of the successive original image patterns, and is printed by the original image film in the vicinity of the original image pattern of the original film and corresponds to the pattern number. A print divided into original image patterns to which an identification code is added is held. This print is pre-printed photographic paper on which the original image pattern of the original image film has been printed. This pre-printed photographic printing paper includes defective printing which is considered to be defective. The identification code corresponds to the pattern number of the original image pattern, and is attached to a part of the printing paper during or before the printing process. The identification code is read by the identification code reading device, and the exposure number of the original image film is read by the exposure number reading device. The transport device transports the original image film. When the detector detects the closed state of the holding device, the control device reads the identification code of the print by the identification code reading device and puts the original image pattern with the pattern number corresponding to the read identification code at the exposure position. The transport device is controlled so as to be automatically positioned.

As a result, the original image pattern corresponding to the print held by the holding device can be automatically positioned at the exposure position.

Positioning of the original image pattern may be performed by detecting an edge of an image, or by detecting a notch in a notched negative film. Alternatively, the first pattern may be set in the carrier, and the fixed amount may be fed. Further, this may be performed in combination.

The printing unit controls the exposure based on the density of the original image pattern.
Therefore, since the original image pattern corresponding to the print held in the holding means is automatically conveyed to the exposure position, the exposure amount can be determined again by the density of the original image pattern printed with this print.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.
FIG. 1 shows an outline of an example of a photographic printing apparatus 10, in which light emitted from a light source 12 is arranged on a carrier 16 via a light diffusion tube 14 as a negative film as an original film.
It irradiates 18 and is printed on the photographic paper 22 through the lens unit 20.

Between the light source 12 and the light diffusion tube 14, a light control filter 24 composed of three complementary color filters of yellow (Y), magenta (M) and cyan (C) is interposed. Dimming filter
24 is a signal from the exposure controller 26, which is a driver
It is controlled via 28, 30, and 32. Normally, the colors that are no longer needed during the white light exposure process are reduced by the Y, M, and C filters.

Also, between the negative film 18 and the lens unit 20,
A density sensor 34 for detecting image density information of the three primary colors of red (R), green (G) and blue (B) is provided. The density sensor 34 is composed of a group of photosensors such as photodiodes, and the density distribution information signal of the negative film 18 transmitted by the light source 12 is transmitted through the amplifier 36 to the exposure controller.
It is designed to supply to 26.

In the exposure controller 26, based on the well-known Evans's theorem, the amount of the three color components of the YMC is adjusted to determine the correction coefficient so that the color becomes gray, and the exposure amount E _i is controlled according to the equation (1). There is.

In other words, after the energization (exposure start) of the solenoid 40 that constitutes the shutter 38 by this E _i, each dimming filter 24 is inserted into the optical path from the one in which the exposure amount is sequentially increased, and the exposure of that color is finished. The entire exposure time is controlled.

In the carrier 16 in which the negative film 18 is arranged, a photographic paper arranging section 44 for arranging a defective photographic printing paper 42 which has already been printed and is determined to be defective is formed.

The exposure controller 26, as shown in FIG.
(Central processing unit), RAM58 (random access memory), ROM60 (read only memory), and a bus 62 such as a data bus and a control bus connecting these.

The output signal of the amplifier 36 is supplied to the input / output port 66 via the A / D (analog / digital) converter 64, and the signal from the input / output port 66 to the solenoid 40 and the drivers 28, 30, 32 is supplied based on these signals. Are being supplied.

The formula (1) is stored in the ROM 60. Based on this equation (1), the CPU 56 calculates the exposure amount E _{i of} each color (where i is red, green, and blue), and further calculates the exposure time and the operation time of each light control filter 24. It has become.

Next, the carrier 16 will be described in detail.

As shown in FIG. 3, the carrier 16 is composed of a base 70 and a lid 72, one long side of which is connected by a hinge 74 so that the principal surfaces can be brought into contact with each other. A limit switch 75 is attached to the base 70 so that the open / closed state of the lid 72 can be detected. The signal line of the limit switch 75 is connected to the exposure controller 26.

As shown in FIG. 3 of the base 70, two projections 76 and 78 extending in parallel with the long sides are integrally formed on the front side of the drawing, and a space between them is used as a guide passage 80 at both ends in the width direction of the negative film 18. It is said that. As a result, the negative film 18 is surely moved linearly when it is moved in the longitudinal direction (direction of arrow A in FIG. 3).

One of the negative films 18 is provided in the middle of the guide passage 80 in the longitudinal direction.
A rectangular through hole 82 corresponding to the area is provided, from which the negative film 18 receives the light beam from the light source 12.

Further, a through hole 86 is provided in the lid body 72 so as to correspond to the through hole 82, so that the lens unit 20 is irradiated with the light beam that has passed through the negative film 18.

A substantially U-shaped frame 88 is attached below the through hole 86 in FIG. As shown in FIG. 4, the cross section of the frame 88 at right angles to the axis is substantially L-shaped.
42 can be inserted and held.

Upstream and downstream of the carrier 16, as shown in FIG.
As negative film transporting devices, winding rollers 90 and 92 for winding the ends of the negative film 18 in the longitudinal direction into layers are arranged. The take-up rollers 90 and 92 are rotated by the driving force of a drive circuit 93 (see FIG. 2) which is driven in response to a signal from the exposure controller 26, and the negative film 18 is moved in the arrow A direction or the counter arrow A direction in FIG. It is designed to be transported. That is, when the driving force is applied to the winding roller 90 on the downstream side, the negative film 18 is conveyed in the arrow A direction, and when the driving force is applied to the winding roller 92 on the upstream side, the negative film 18 is conveyed in the opposite arrow A direction. Will be. In this case, a braking force of a brake mechanism (not shown) acts on the take-up roller to which the driving force is not applied, and the negative film 18 is conveyed while being applied with a substantially constant tension. In addition,
When the negative film 18 is set on the carrier 16, it is necessary to manually position an arbitrary image pattern at the exposure position (through holes 82, 86). After the positioning is completed, the negative film 18 is conveyed by the take-up rollers 90 and 92 in a feeding manner in which the image feeding pitch is a unit feeding amount.

A well-known bar code reader is installed upstream of the carrier 16.
94 is provided and attached to one end in the width direction of the negative film 18. This barcode reader 94 is a barcode 96 (5th
The image (A)) is read to search for an image pattern to be positioned at the exposure position. The bar code 96 is attached to the negative film 18 in advance in order to make it easy to read the frame number corresponding to each image pattern of the negative film 18.
That is, it is applied because it is easier and cheaper to identify than a reading device that directly identifies the pattern number.

Here, as shown in FIG. 5 (A) (viewed from the arrow V in FIG. 1), the bar code 96 attached to the negative film 18 has a predetermined interval near the right side of the corresponding frame number (see FIG. It is attached with the dimension B) of A). The bar code 96 is designed to be read by the bar code reader 94 while the negative film 18 is being conveyed, and after the reading, the negative film 18 is temporarily stopped and then the negative film is formed by a dimension that is an integral multiple of the image-wise pitch. It is designed to be transported. This size is a size determined by how many upstream from the exposure position the search by the bar code reader 94 is performed, and in this embodiment, it is shown in FIG.
As shown in, the reading position of the bar code reader 94 is located between the second and third lines on the upstream side.
It is designed to carry a portion.

Further, as shown in FIG. 4, the lid 72 of the carrier 16 is provided with a through hole 98 corresponding to the back surface of the defective printing paper 42 that is inserted and held, and is attached to the back surface of the defective printing paper 42. The bar code 42A (see FIG. 5B) as the generated identification code is exposed. This barcode
42A corresponds to the pattern number of the image pattern printed on the defective printing paper 42, and is searched for in the image pattern at the time of reprinting as in the present embodiment or when the user makes an additional order by reordering. Etc. have been applied. A bar code reader 99 is attached on the through hole 98. The bar code reader 99 reads the bar code 42A exposed from the through hole 98 by moving its detecting unit (not shown), and has a different configuration from the bar code reader 94. There is. Data Bp read by barcode reader 99 (electrical signal corresponding to barcode 42A)
Are sent to the exposure controller 26. The exposure controller 26 is adapted to temporarily store this data Bp in the RAM 58. The stored data Bp is read every time the barcode 96 (data Bf) attached to the negative film 18 is read.
It is taken into the CPU56, collates these bar codes, controls the drive of the take-up rollers 90, 92, and the negative film
The 18 is conveyed in the direction of arrow A in FIG.

Further, as shown in FIG. 1, a bar code printer 95 is installed on the back side of the printing paper 22 to be printed, and is controlled by a signal from the exposure controller 26 via a drive circuit 97. It has become. This barcode printing machine
A bar code 95 prints the same bar code as the bar code 42A attached to the defective printing paper 42 in conjunction with the conveyance of the printing paper 22 after printing.

As shown in FIG. 9, the bar code printer 95 is of a thermal transfer type including a printer body 200 and an ink ribbon cassette 202, and the ink ribbon cassette 202 is detachable from the printer body 200. There is. An ink ribbon 206 is placed inside the casing 204 of the ink ribbon cassette 202.
A pair of reels 208 and 210 for winding the layers in a layered manner are installed, and the through holes 21 provided at the center of the reels 208 and 210 are provided.
2, 214 mesh with the drive roller 216 when the ink ribbon cassette 202 is loaded into the printer main body 200.
The head 218 attached to the printer body 200 is the photographic paper 22
Are arranged opposite to each other with a slight gap on the back surface. The middle portion (E in FIG. 9) of the ink ribbon 206 is the gap 220.
When the printing operation is performed, the head 218 is moved toward the printing paper 22, and the head 218 and the printing paper 22 hold the ink ribbon 206. The ink ribbon 206 is arranged in the conveying direction of the photographic printing paper 22 (9th
It is configured to be transported in the same direction (direction of arrow D in FIG. 9) and at the same speed as the direction of arrow C in the figure, so that the ink attached to the ink ribbon 206 can be thermally transferred while the photographic paper 22 is transported. It has become. In this embodiment, the printing machine 95
Is installed on the downstream side of the photographic printing paper 22, so that the printing is delayed by one image.

The printing procedure of the photographic printing apparatus 10 configured as described above will be described below with reference to the flowchart of FIG. The light source
It is assumed that 12 is already energized and irradiated with light rays.

First, in step 100, put the negative film 18 in the carrier 1
6 is arranged on the upper side, and an arbitrary pattern is selected, this pattern is made to correspond to the through hole 82, and the exposure position is positioned. When the positioning is completed, the worker next inserts the defective printing paper 42 into the frame 88 and places it in the printing paper placement section 44. After the above preparation steps are completed, the lid 72 of the carrier 16 is hinged. The base 70 and the lid 72 are closed by rotating them around the spindle of 74. The closed state of the base 70 and the lid 72 is detected by the limit switch 75, and the process proceeds to step 102. At step 102, the bar code attached to the defective printing paper 42 is read by the bar code reader 99, and the data is read.
Bp is supplied to the exposure controller 26 and stored in the RAM 58. At the next step 103, a driving force is applied to the take-up roller 90 on the downstream side, and the negative film 18 is conveyed by the amount of the image. Since a braking force is applied to the upstream winding roller 92 during this conveyance, both ends in the width direction are guided by the projections 76 and 78 of the carrier 16 while maintaining the tension of the negative film 18 substantially constant. So it can be moved linearly without meandering. Negative film 18 at step 104 during this feeding
The bar code 96 attached to is read by the bar code reader 94, and its data Bf is supplied to the exposure controller 26. In step 105, the data Bp corresponding to the bar code of the defective printing paper 42 stored in the RAM 58 is fetched into the CPU 56, and in the next step 106, these data Bp are stored.
p and Bf are compared. Since these data Bp and Bf are processed as numerical values, it is possible to judge their magnitude relationship. Therefore, if the bar code of the defective printing paper 42 and the bar code read from the negative film 18 match (Bp = Bf), it can be determined that the image pattern corresponds to the defective printing paper 42, and this embodiment Then, in step 107, after being conveyed by the downstream winding roller 90 by two steps,
Move to 110. As a result, the image frame corresponding to the defective printing paper 42 can be positioned at the exposure position.

If it is determined in step 106 that Bp> Bf, it is determined that the negative film 18 is insufficiently conveyed, and step 10 is performed.
A driving force is applied to the downstream winding roller 90 at 8 to convey the negative film 18 in the direction of arrow A in FIG.
After shifting to 4, the data Bp and Bf can be matched by repeating the following steps 105 and 106.

Next, if Bp <Bf is determined in step 106, it is determined that the negative film 18 has been conveyed excessively, and step 109
Then, the driving force is applied to the upstream take-up roller 92, the negative film 18 is conveyed by one step in the direction of arrow A in FIG. 3, and the process proceeds to step 104. As a result, the data Bp and Bf can be matched with each other as described above.

In step 110, the negative sensor 18 is operated by the density sensor 34.
The density of the pattern is detected by the light beam from the light source 12 that has passed through.

In step 111, the exposure amount of each color is calculated by the equation (1) based on the respective densities detected in step 110.

Next, the exposure amount of each color obtained in step 111 is converted into the exposure time, and sorted in the order of shorter exposure time in step 112, and then the shutter 38 is opened in step 113 (energization to the solenoid 40). This allows the negative film
18 kinds of transmitted light are transmitted through the lens unit 20 to the photographic paper.
It reaches 22 and exposure is started.

In step 114, each dimming filter 24 is operated for each predetermined time, and the cut is performed in order from the color after the exposure,
When exposure of all colors is completed, the process proceeds to step 116, and the shutter 38 is closed. This will be described later.

In the next step 117, the photographic printing paper 22 is conveyed by one image, and at the same time, the bar code 42 of the defective printing photographic printing paper 42 placed on the carrier 16 when the printing process is performed once before by the printing machine 95.
Print the same bar code as A. When printing is completed, in step 118, the bar code data Bp of the defective printing paper 42 currently placed in the carrier 16 is substituted into Bp-1.

Next, when the worker opens the carrier 16 at step 119, this is detected by the limit switch 75, and the printing process ends. If another defective printing paper is set in the carrier 16 and the carrier 16 is closed, the reworking process is continued.

Next, the subroutine of step 114 will be described in detail with reference to FIG.

The dimming filters 24 are rearranged in the order of shorter exposure time at step 110. For example, yellow (filter F1), magenta (filter F2), cyan (filter F).
In the order of 3), first, it is determined in step 122 whether or not the yellow exposure time has ended, and if it is determined that the yellow exposure time has ended, a signal is sent from the exposure controller 26 to the driver 28 in step 124, and the filter F1 is turned on. Insert into the optical path. Then
When it is determined in step 126 that the magenta exposure time has ended, in step 128 the driver 30 is operated to insert the filter F2 into the optical path. Similarly, if it is determined in step 130 that the cyan exposure time, which is the longest exposure time, has ended, in step 132 the driver 32 is operated to insert the filter F3 into the optical path, and the process returns to the main routine.

In the present embodiment, since the negative film 18 and the defective printing paper 42 corresponding to the negative film 18 can be arranged as a pair in the carrier 16, the collation work between them can be facilitated.

In the present embodiment, the negative film is conveyed one by one and the Bp and Bf are successively compared, but the steps 104 to 110 shown in FIG. 5 may be controlled as shown in FIG. Good.

That is, the image side data read by step 104A.
If the difference D (Bp-Bf) between Bf and the data Bp of the defective printing paper 42 stored in the RAM 58 at step 105A is calculated at step 106A, and if the difference D is a positive number or 0 at step 107A. In step 108A, the D + 2 area image is conveyed in the direction of arrow A in FIG. 3, and when the difference D is a negative number in step 107A, in step 109A, the D-2 area is exposed in the direction of arrow A in FIG. To be transported to. In this way, the search for the image pattern can be completed by comparing the data Bp and Bf once.

As described above, in this embodiment, the corresponding image pattern is automatically searched from the plurality of image patterns recorded on the negative film 18 based on the bar code attached to the defective printing paper 42, and the image pattern is positioned at the exposure position. Therefore, the workability is improved. Further, since the bar code attached to the defective printing paper 42 can be attached to the reprinted photographic paper, the collation can be easily performed at the next reprinting or reprinting.

In this embodiment, a dot printer in which a thermal transfer printer 95 is applied as the identification code assigning means and which represents a character (bar code) by a plurality of points may be used.

〔The invention's effect〕

As described above, the photographic printing apparatus according to the present invention is a printing apparatus which has already been subjected to printing processing in which the original film and the identification code corresponding to the pattern number of the original image of the original film to be searched are already attached to the holding device. By holding and detecting the closed state of the holding device, the original image pattern of the original film corresponding to the held print can be quickly transported to the exposure position without inputting the pattern number etc., and reprinting etc. It has an excellent effect that it is possible to easily compare the print of the original image with the original image pattern of the original image film.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a photographic printing apparatus according to this embodiment, FIG. 2 is a control block diagram, FIG. 3 is a perspective view of a carrier, and FIG. 4 is a sectional view taken along line IV-IV of FIG. FIG. 5 (A) is an explanatory view taken along the line V in FIG. 1 showing the positioning of the negative film, and FIG.
FIG. 6B is a perspective view showing a bar code attached to defective printing paper, and FIG. 6 is a control flow chart according to this embodiment.
FIG. 7 is an exposure control subroutine, FIG. 8 is a flow chart showing a part of the control according to another embodiment, and FIG. 9 is an exploded perspective view of the printer. 10: Photo printing device, 12: Light source, 16: Carrier, 18
…… Negative film, 24 …… Light control filter, 26 …… Exposure controller, 34,50 …… Density sensor, 42 …… Bad print paper, 44 …… Print paper placement part, 90,92 …… Roller roller , 9
4, 99 ... Bar code reader.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshihiko Saeki, 798 Miyadai, Kaisei-cho, Ashigarashie-gun, Kanagawa Fuji Photo Film Co., Ltd. (56) References JP 61-42636 (JP, A) JP 56-128933 (JP, A) JP 61-254942 (JP, A) JP 62-42138 (JP, A)

Claims (2)

[Claims] 1. A base number and a lid body which are openably and closably connected to each other, and a detector for detecting an open / closed state of the base body and the lid body. While holding the original image film with a mark, the original image film was subjected to a baking process in the vicinity of the original image film and an identification code corresponding to the frame number was given, and the original image film was divided for each frame. A holding device for holding a print, a exposure number reading device for reading the exposure number of each original image pattern of the original film, a density measuring device for measuring the density of the original image pattern of the original film, and an identification code of the print. An identification code reading device for reading, a transporting device for transporting the original image film, and when the detector detects the closed state of the holding device, the identification code reading device reads and reads the identification code of the print. A control device for controlling the carrying device so as to automatically position the original image pattern having a pattern number corresponding to the taken identification code at the exposure position, and the original image pattern based on the density of the original image pattern. A photographic printing apparatus having a printing means for printing the image on photographic paper. 2. An identification code printing machine is installed in the photographic printing apparatus, and prints the same identification code as the print held in the holding device on the printed printing paper. The photographic printing apparatus according to claim (1).