| 摘要 |
PROBLEM TO BE SOLVED: To obtain a wet type image forming device constituted so that such possibility that developer is leaked from a developer tank at a stirring time is eliminated, even a small quantity of developer can be sufficiently stirred and a uniform-concentration developer can be always supplied to a developing roller. SOLUTION: This device is constituted so that an almost hermetically sealed structure is adopted as the structure of the developer tank 3 supplying the developer 2 to the developing roller 1 and provided with a developer fluidization means making the developer 2 in the tank 3 flow outside the tank 3 by pressurization and making the developer 2 outside the tank 3 flow into the tank 3 by releasing the pressurization. Since the developer in the tank 3 is stirred by the developer fluidization means by repeatedly executing the above mentioned pressurization and the release thereof, such possibility that the developer is leaked from the developer tank at the stirring time is eliminated. Besides, since even the small quantity of developer can be sufficiently stirred, the uniform-concentration developer can be always supplied to the developer roller.
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