JP2000231158A - Photographic processing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To constitute a photographic processing mechanism capable of performing the terminal processing of a roll-type photographic paper with good workability. SOLUTION: This machine has a carrying device G cutting the photographic paper 2 from a photographic paper magazine with a cutter 25 and feeding it to an exposing position P and also returns the paper 2 to the magazine without cutting the paper 2 by the cutter 25 when the terminal 2b of the paper 2 is detected by a terminal sensor 30 provided on the device G.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic paper supply section for cutting a roll-shaped photographic paper at a set length, feeding the photographic paper to an exposure position, and feeding the photographic paper exposed at the exposure position, and a photographic paper after exposure The present invention relates to a photographic processor provided with respective development processing units for developing paper.

[0002]

2. Description of the Related Art A problem with this type of photographic processing machine is how to process the end of photographic paper fed from a magazine. That is, as shown in FIG. 4, when the end 2b of the printing paper 2 is detected by the end sensor 30, as shown in FIG. Since the remaining photographic paper 2 is less than the roll interval as indicated by the dotted line in FIG. 5, when the end sensor 30 is activated, the cutting work is not performed and the photographic paper 2 is left on the transport belt 26 and the worker Had a system to remove it.

[0003]

However, in order to remove the remaining photographic paper, since the exposure unit is located at the bottom of the machine,
The work posture to crouch down is forced, and there is a side with poor workability. In addition, if the user forgets to take it, it may cause clogging. On the other hand, it is not conceivable that the remaining photographic paper may be developed and removed in the same manner as ordinary exposed photographic paper without exposing the blank photographic paper. Since it is conceivable to insert the blank page, it is not possible to recognize the purpose of the blank sheet, and there is a possibility that the blank page is erroneously recognized. SUMMARY OF THE INVENTION An object of the present invention is to rationally construct a photographic processor capable of easily and easily processing the terminal processing of photographic paper.

[0004]

[Means for Solving the Problems] [Constitution] The feature of the invention according to claim 1 is that the end of the photographic paper supplied from the magazine is detected in the middle of the conveying path, on the upstream side of the cutter existing position from the cutter existing position. The control means returns the photographic paper being supplied into the magazine based on a result of detection of the end of the terminal sensor,
The operation and effect are as follows. [Operation] That is, when the end of the photographic paper is detected by the end sensor, the operation is stopped at that time, and the transport device is driven in reverse to return the detected photographic paper to the magazine. . Then, when the next photographic paper is set in the magazine, the remaining photographic paper returned to the magazine can be removed. [Effect] The removal of the remaining photographic paper returned to the magazine can be performed at the same time when the next photographic paper is set, and the work efficiency is good. By putting it back in the magazine,
The work posture can be made better than in the case of performing the work of removing the photographic paper at the exposure position, and the workability is good. There is no misunderstanding that the order is separated by order.

[Structure] According to a second aspect of the present invention, in the characteristic structure of the first aspect of the present invention, the transport device includes a delivery mechanism having a transport path from the magazine to the cutter; The operation and the effect are as follows. The conveyance belt is located on the lower side of conveyance from the cutter and conveys the photographic paper to the exposure position. [Effects] In other words, by splitting the transport device into two, the first half of the delivery mechanism can be configured to be suitable for feeding photographic paper, and the second half can be adapted for exposure work. And a configuration suitable for each function can be adopted.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the photographic processor includes an image generating section A for optically extracting a frame image of a negative film 1 as a photographic film at a front position of the apparatus.
And a roll of photographic paper 2 in the upper position of the apparatus.
And a photographic paper magazine 3 in which the frame image from the image generation unit A is stored in the apparatus.
And a transport device G for transporting the photographic paper 2 from the photographic paper magazine 3 beyond the exposure unit B is provided.
A developing section C for developing the photographic paper 2 is arranged at the rear of the apparatus main body.

[0007] The image generating section A converts the light from the light source 4 into a film carrier D through a dimming filter 5 having three kinds of filters of cyan, magenta and yellow, and a mirror tunnel 6 for equalizing the light. The frame image of the negative film 1 is guided to the negative film 1, and the frame image of the negative film 1 is enlarged by a zoom lens 7, and the shutter 8 is opened to form an image at the exposure position of the exposure unit B.
The film carrier D includes a plurality of rollers 9 for feeding the negative film 1, an electric motor 10 for driving the plurality of rollers 9 in a synchronized state, and a negative mask 11 for extracting light rays only from the frame image area of the negative film 1. The CCD line sensor 12 has a posture in which the longitudinal direction is set in the width direction of the negative film 1 so as to measure the size of the frame image of the negative film 1.

[0008] As shown in FIGS.
Is provided with a delivery mechanism E composed of a number of rollers 23 and an electric motor 24 for driving these rollers to feed the printing paper 2 from one of the pair of printing paper magazines 3. A cutter 25 (an example of a cutting mechanism) having two cutting blades which are arranged at a shearing position so as to cut the photographic paper 2 and are driven by an electric actuator 25A, and a photographic paper 2 cut by the cutter 25 are negatively driven. An endless conveyance band 26 that conveys in a suction state by pressure, a plurality of loops 27 around which the endless conveyance band 26 is wound, and a number of rollers so as to send the photographic paper 2 from the endless conveyance band 26 to the developing unit C. Transport mechanism F having an endless transport belt 26
7 and an electric motor 29 for driving each of the rollers 28 of the transport mechanism F. The photographic paper 2 from the photographic paper magazine 3 is located at an intermediate position of the photographic paper feed path of the delivery mechanism E.
A contact-type end sensor 30 for detecting the end 2b of the contact is disposed. In addition, the sending-out mechanism E, the cutter 25, and the endless transport band 26 constitute a photographic paper supply unit. The delivery mechanism E and the endless transport band 26 are referred to as a transport device G.

As shown in FIGS. 1 and 2, the developing section C includes a developing tank 34 having a plurality of processing tanks formed by a plurality of partition walls 34A.
A plurality of rollers 35 for sequentially supplying photographic paper to the respective processing tanks, an electric motor 36 for driving these rollers 35, a heater 37 for drying the photographic paper 2 after the development processing, A horizontal transport conveyor 40 for feeding the photographic paper 2 and a sorter (not shown) for collecting the photographic paper 2 from the horizontal transport conveyor 40 are provided.

The photographic processor includes a controller 41 as a control means having a microprocessor (not shown). The controller 41 controls the power to the light source 4 and controls the amount of exposure of the dimming filter 5. Control of the electric actuator 5A to be set, control of the electric motor 10 for driving the roller 9 of the film carrier D, control of the electric motor 24 of the delivery mechanism E, and control of the electric actuator 25A for driving the cutter 25 Further, an output system for controlling the electric motor 29 for driving the endless conveyance belt 26 and the conveyance mechanism F and controlling the electric motor 36 for the roller 35 of the developing section C is formed. An input system for supplying signals from the CCD line sensor 12 and the terminal sensor 30 is formed, and an operation console 42, a monitor 43, and an alarm 44 such as a buzzer used for inputting an artificial setting signal are provided. ing.

Exposure conditions and the like in actual printing are read in advance by running the negative film 1 and reading each frame image by a scanner (not shown). Based on the read image, each frame image is The control that determines the exposure condition is performed, and an image that would be obtained when the photographic paper 2 is projected and exposed is simulated based on the determined exposure condition and displayed on the monitor 43.

The feeding amount of the printing paper 2 is controlled by using stepping motors as the electric motors 24, 29, and 36 for feeding the printing paper 2, and providing an open signal for providing an intermittent signal corresponding to a movement distance actually grasped. The transport amount of the printing paper 2 is controlled by loop control. Photographic paper 2
Is controlled as follows. That is, when feeding the photographic paper 2 toward the exposure position P, as shown in FIG. 3, the feeding mechanism E and the endless transport belt 26 are synchronized with respect to the photographic paper 2 having the leading end 2a at the cutting position. When the photographic paper 2 is driven to be fed and the feeding length from the cutter 25 reaches a predetermined size S (cut length) for printing, the feeding mechanism E and the endless transport belt 26 are stopped. The stopped printing paper 2 is cut by the cutter 25. After cutting, endless transport belt 2
6 is driven and the center of the photographic paper 2 (the center in the transport direction) is set at the center of the photographic paper 2 in consideration of the interval T between the cutter 25 and the center of the exposure position P orthogonal to the optical axis L from the image generating unit A. The endless transport belt 26 is driven and stopped until the position (position) coincides. When the exposure is completed, feed control of the next photographic paper 2 having the leading end 2a at the cutting position is performed.

As described above, the following control is performed as a process when the photographic paper 2 stored in the magazine 3 is used up in the stage where the printing work process proceeds in a normal state. As shown in FIG.
5b is detected by the end sensor 30, FIG.
As shown in FIG. 5, even if the predetermined size S can be sufficiently secured, if the paper is cut, only the short photographic paper 2 that cannot be gripped by the transport rollers 23 remains, and the short photographic paper 2 falls off the transport path, making post-processing difficult. Become. Therefore, the terminal sensor 30
When the end point 2b is detected, as shown in FIG. 6, the feeding mechanism E and the endless transport belt 26 are operated in reverse, and are fed back to the photographic paper magazine 3 in a state where the exposure processing is not performed. To store.

As described above, in consideration of the reverse feeding, the guide 45 for guiding the photographic paper 2 is provided on the transport path a, and at the branch point to the two magazines 3, the feeding is performed in the reverse direction. In order to switch the course of the photographic paper 2 present, the guide 45 is worked. That is, as shown in FIG. 6, a mechanism for switching between a state in which a part of the guide 45 is projected and a state in which the guide 45 is retracted is provided. The switching mechanism is
An extension guide 45B held by a holder 45A is provided at the distal end of the guide 45, and the extension guide 45B is configured to be spring-biased in a protruding state and set to a retreat state by a solenoid 45C. With the above-described configuration, the extension guide 45B is set in a protruding state when housed in the magazine 3 located on the left side of the drawing, and the extension guide 45B is retracted when housed in the magazine 3 located on the right side. Switch to state.

The control mode in the photo processor is set as follows. As shown in the flowchart of FIG. 7, the photographic paper 2 is set to the initial state (# 101). In this initial state,
As shown in FIG. 3, setting the photographic paper 2 by feeding the leading end 2a of the photographic paper 2 to the cutting position corresponds to this. However, assuming that the printing paper 2 is stored in the magazine 3 as the initial state, the control may be started by newly feeding out the printing paper 2 from the magazine 3. In the control, the printing size S (the size of the photographic paper 2) is set based on the size of the frame image of the negative film 1 determined by the measurement of the CCD line sensor 12 (# 102). Next, the feeding mechanism E and the transport belt 26 are driven synchronously to feed out the printing paper 2 (#
103). If the end sensor 30 detects the end 2b when feeding out the photographic paper 2, the normal exposure operation must be stopped and the return control described later must be performed, so the state of the end sensor 30 is checked (# 104). In a state where the end sensor 30 has not detected the end 2b, it is subsequently determined whether or not the feeding amount of the photographic paper 2 has moved by the predetermined size S (# 105). If the movement is confirmed, the feeding mechanism E and the transport band 26 are stopped, and the cutter 25 is stopped.
(# 106, # 107, # 108) It is determined whether or not the cut photographic paper 2 has reached the exposure position P (# 1).
09), when the exposure position P is reached, exposure is performed (# 1).
10) The above control is performed until the printing of all the frame images of the negative film 1 is completed (# 111). When the printing is completed, a message is displayed for the monitor 40 to recognize, and the process is terminated.

On the other hand, when the end sensor 30 detects the end 2b (# 104), the feeding mechanism E and the transport band 26 are reversed (# 112) and stored in the magazine 3 (# 11).
3). In this case as well, a step signal corresponding to the transporting process from the exposure position P to the magazine 3 may be given to the stepping motor as described above. When the photographic paper 2 returns to the magazine 3, the alarm 44 is activated to notify the operator (# 114). [Other Embodiments] In the present invention, in addition to the above-described embodiment, the delivery mechanism E and the transport band 26 may be constituted by a series of roller-type transport devices G.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a configuration of a photographic processor.

FIG. 2 is a schematic diagram showing a control system of the photographic processor.

FIG. 3 is an operation diagram showing an exposure state and a stop position of a leading end of photographic paper.

FIG. 4 is an operation diagram showing a state where an end sensor detects an end.

5 is an operation diagram showing a state in which short photographic paper remains when the photographic paper is fed out by a predetermined size from the state of FIG. 4;

FIG. 6 is an operation view showing a state in which the remaining photographic paper is returned into the magazine.

FIG. 7 is a flowchart showing control for performing a photographic paper termination process.

[Explanation of symbols]

 2 photographic paper 2b terminal 3 magazine 25 cutter 26 transport band 30 terminal sensor 41 control means E sending mechanism G transport device P exposure position a transport path

Claims (2)

[Claims] 1. Photographic paper (2) stored in a magazine (3)
Is provided to the exposure position (P), and in the middle of the transport path (a) of the transport device (G).
Cutter (2) for cutting supplied photographic paper (2) for printing
5) a photographic processing machine provided with control means (41) so as to supply the photographic paper (2) cut by the cutter (25) to the exposure position (P); (A) An end sensor (3) for detecting the end (2b) of the photographic paper (2) supplied from the magazine (3) on the way to the conveyance side from the position where the cutter (25) is present on the way.
0), wherein the control means (41) performs control to return the photographic paper (2) being supplied to the magazine (3) based on a result of detection of the end of the end sensor (30). 2. A delivery mechanism (E) having a transport path from the magazine (3) to the cutter (25), and a photographic paper positioned on a lower transport side of the cutter (25). 2. A photographic processor according to claim 1, wherein said photographic processor is constituted by a transport band (26) for transporting (2) to the exposure position (P).