JPS61275757A - Replenishing solution controlling device for automatic developing device - Google Patents

Abstract

PURPOSE:To calculate the total supply amount of a developer with high precision and to perform a secure quality control by calculating the total supply amount from the product of a developer supply time when a pump is in operation and the supply amount of a developer per unit time after coefficient correction. CONSTITUTION:A replenishing time arithmetic part 23 calculates the time required for one developer supplying operation from differences in the area of a processed film and the quantity of exposure and the quantitative pump 25 is put in operation for the time. Then, the current actual flow rate is detected by a supply developer flow rate measuring part 26 and corrected by a supply amount setting part 27 on the basis of a coefficient to eliminate an error component that the control system of the pump, etc., has thereby calculating the supply amount per unit time. The total supply amount is calculated from the product of the supply amount per unit time and said supply time and outputted to an output part 29. Thus, the total supply amount is calculated with high precision and the secure quality control is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an automatic film developing device, and more particularly to a replenisher monitoring and controlling device for developer and fixer washing water.

1. Prior Art An automatic developing device that automatically processes film development, fixing, washing, and drying has a configuration shown in FIG. 2, for example. At the front and rear of the housing 1, there are provided a supply stage 2 for supplying undeveloped film and a collection tick 4 from which processed film 3 is taken out. A large number of feed rollers 8 driven at a constant speed are located between the intake port 6 with the film detector 5 located facing the supply table 2 and the film take-out lower part attached to the collecting rack 4, that is, inside the housing l. A structured meandering film transport path 9 is formed. Inside the housing 1, a developing solution tank 1G, a fixing solution 11, a washing tank 12, and a drying device +3 are located sequentially adjacent to each other along the film transport path 9, and the film inserted through the intake port 6 is The image is developed before it is taken out from the take-out lower. The operation panel I4 provided at the upper front of the housing l is provided with necessary operation buttons and indicators, and a control device such as a microcomputer (not shown) having these in the input/output section controls the necessary controls for automatic development processing. will be done.

For example, the control device sets the temperature of the developer and fixer, the development time of the film fed through the tank at a constant speed, and the level of washing water for the developer and fixer related to the fixing time. Based on this, the heater in the tank is energized and the replenishment of developer, fixer, washing water, etc. is controlled.

Among these, the liquid replenishment processing device has a liquid replenishment alarm by detecting the upper limit of liquid level and f limit, as well as detecting the amount of film processed and replenishing the liquid each time to maintain appropriate activity and maintain stable and good performance. Development and fixing are achieved. In this case, the amount of film to be processed is calculated by the control device calculating the area of the processed film based on the presence or absence of the film detected by the film detector 5, the feeding time, and the film width. Then, when the cumulative amount reaches the area of the four-cut film, the corresponding amount of liquid is replenished once each time.The control device also stores the number of times of liquid replenishment and one replenishment Ii (for example, developer 33c
c/four cuts, fixer 68cc/four cuts) to determine the total replenishment amount (liquid stool volume). Such control is described, for example, in Japanese Patent Application Laid-Open No. 1986-
This is known from Japanese Patent No. 12824.

Problems to be Solved by the Invention - In the conventional liquid replenishment control device, the amount of replenishment at one time is just a standard value, and the replenishment of a fixed amount is controlled by the liquid replenishment pump.
There will be an error between the actual refill amount at one time and the standard value due to variations in equipment and control, and a large error will occur between the total refill amount and the actual total refill amount (amount used), resulting in a decrease in liquid activity. There were problems with uneven finished image quality due to variations and difficulty in managing replenisher fluid. In particular, JP-A-59-25800
As seen in the publication, when the amount of refill per time is changed depending on the location of the film to be photographed (difference in il light intensity), the total amount of refill calculated by multiplying the number of refills by the amount of refill per time is actually A large error occurs between the total replenishment Ji (amount used) and the total replenishment Ji (amount used).

-Means for Solving the Problems- Therefore, the present invention provides a means for determining the liquid replenishment time based on the area of the processed film and the imaged area, a means for operating the liquid replenishment pump for this replenishment time, and a flow layer detection method for the pump. Alternatively, the above-mentioned conventional problem can be solved by a measuring means, a means for measuring a coefficient of the actual liquid replenishment amount per unit time from this detected or measured value, and a means for calculating the total liquid replenishment amount from this liquid replenishment amount and replenishment time. It is an attempt to overcome the That is, in the present invention, the operation time of the quantitative replenishment pump is controlled by determining the amount of liquid replenishment necessary for the processing film as the replenishment time, and the error in the control system of the pump etc. is controlled by measuring or detecting the actual replenishment amount. This method corrects the minutes and sets a coefficient for the replenishment amount per unit time, and calculates the replenishment time and the total replenishment amount per unit time.

1 Embodiment - FIG. 1 is a block diagram of a liquid replenishment process of a developing device showing an embodiment of the present invention. The zero area calculation unit 21 performs processing based on the detection signal of the film detector 5 of the automatic developing device and the film feed speed. The exposure amount detection section 22, which calculates the area of the film, calculates a coefficient of liquid consumption required for processing from a detection signal such as the amount of infrared light transmitted through the processing film. The replenishment time calculation unit 23 receives the film area data from the area calculation unit 21 and the exposure amount detection unit 2.
The liquid replenishment time for one time is determined from the liquid consumption coefficient data from 2.

The timer 24 receives liquid replenishment time data from the calculation unit 23 and operates the liquid replenishment pump 2 for a time that matches the time data.
A drive command is output to 5. The liquid replenishment pump 25 is a constant flow pump 25 whose flow rate per unit time is constant, and is rotated for a time set by a timer 24, thereby controlling the replenishment amount 5. The replenisher flow rate measurement unit 28 detects or measures the actual flow rate when replenishing the liquid by operating the liquid replenishment pump 25. The replenishment amount setting section 27 is composed of a personal computer or the like that sets the amount of liquid replenishment per unit time based on the flow rate detection signal of the detection section 2B. The total replenishment amount calculation unit 28 is
The replenishment amount is calculated from the replenishment time for one time calculated by the replenishment time calculation section 23 and the replenishment amount per unit time set in the measurement section 27 for replenishment 5, and the total replenishment amount is determined by the integration and displayed on a display, etc. An output is transmitted from the output section 29.

Since the illustrated embodiment has the above-described structure, the replenishment time calculating section 23 calculates the replenishment time for one time based on the area of the processed film and the difference in the imaging region, and the replenishment pump 25 replenishes the liquid for this replenishment time. At the same time, the total replenishment amount calculation unit 28 calculates the total replenishment amount from the replenishment time and the actual replenishment lk per unit time. Therefore, with this configuration, the total replenishment amount is not determined from the number of replenishments and the standard replenishment amount per unit time as in the past, but is measured and calculated from the replenishment time and the actual replenishment amount per unit time. Therefore, even if an error occurs due to the liquid replenishment control system such as a liquid replenishment pump, the actual replenishment amount cannot be detected or! This can be calibrated by adjusting or setting the replenishment amount setting section 27 based on the actual replenishment amount, and there is also the advantage that the actual replenishment amount of the liquid can be used as data for maintaining appropriate activity.

Effects of the Invention According to the present invention, the amount of liquid replenishment is set by the pump operation time,
The actual refill amount is detected or measured, the refill amount per unit time is set, and the total refill amount is calculated from the refill time and the refill amount per unit time. This has the effect of making it possible to reliably and easily perform quality control regarding development and fixing processing while eliminating waste.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a liquid replenishment process of a developing device showing an embodiment of the present invention, and FIG. 2 is a schematic diagram of the structure of an automatic developing device. 5...Film detector, 21...Area calculation unit. 22... Exposure amount detector, 23... Replenishment time calculation section, 24... Timer, 25... Liquid replenishment pump, 2B... Liquid replenishment flow M measuring section, 27... Replenishment amount measurement Department. 28...Total replenishment amount calculation unit. 29...Output section.

Claims (1)

[Claims] 1) Determine the replenishment time for the developing and fixing solution based on the area of the photosensitive material and the photographed area, control the replenishment pump for this replenishment time, and calculate the actual amount of replenisher per unit time by detecting or measuring the flow rate of this pump. 1. A replenishment liquid control device for an automatic developing apparatus, characterized in that a coefficient is set, and the total replenishment amount of the liquid is calculated from the replenishment time.