| 摘要 |
PURPOSE:To stably perform development to improve the workability of management of a developer by providing a developer temporary storage tank in a position higher than a developing part and naturally dropping the developer to a material to develop in the developing part to supply it there. CONSTITUTION:An exposed photosensitive planographic plate (PS plate) is sent to a developing part A by a roll 1. A developer temporary storage tank 10 is provided above the developing part A, and the developer is dropped onto the PS plate from supply ports 7 arranged in the breadthwise direction of the PS plate. The developer is replenished from a developer tank 11 to the tank 10 through a pump 14. At such a time, a float switch 16 is provided for the tank 10 make a water level 9 constant. The developer on the PS plate is rubbed with a brush 6 to make the developer film thickness uniform, and the development is performed. Next, the PS plate is washed with water in a water washing part B. Since the fresh developer is supplied to the developing part A, the development is always stably performed. |
