Photosensitive planographic printing plate automatic processing method and automatic processing device thereof

Patent Application No
Abstract: An automatic processing method for developing a plurality of exposed photosensitive lithographic printing plates by using a developer, the method comprising: a pre-calculation step, a measuring step and a supplementary step as defined therein. Wherein after a period from the start of the operation of the automatic processing apparatus until the measured developer conductivity value exceeds the target conductivity value for a period of time, for each replenishment of the developer supplement, correction is performed using a predetermined first operation expression. The target conductivity value; and after the automatic processing device operation starts, after the measured conductivity value of the developer exceeds the target conductivity value for the first time, a second operation expression is used for each supplement of the developer supplement. Correct the target conductivity value. ※