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AssigneeFuji Photo Film Co., Ltd.
InventorHiroyuki Sasayama
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In an electric conductivity-based replenishing system, a developer replenishing method of an automatic developing apparatus for a photosensitive lithographic printing plate is provided which is capable of minimizing the fluctuations in sensitivity of a developer with respect to the changes in development treatment conditions while implementing a developing unit of the automatic developing apparatus in a simple and low cost structure, in which an electric conductivity value of the developer is measured in a predetermined given cycle, when the measured electric conductivity value of the developer is lower than the target electric conductivity value, the developer is replenished with a predetermined amount of a developer replenisher, the time interval between the previous supply of the developer replenisher and the present supply of the developer replenisher is measured, a target electric conductivity arithmetic expression is selected based on the measured replenishment time interval and the replenishment time interval threshold value, and using the selected target electric conductivity value arithmetic expression and the measured replenishment time interval, the target electric conductivity value is updated.
A method for replenishing a developer of an automatic developing apparatus for photosensitive lithographic printing plates, the method comprising:
Dependencies are inferred from the claim text.