| 摘要 |
PURPOSE:To prevent a photosensitive material from being contaminated, by providing a timer which controls a fixed time and a controlling means which switches a switching means by using the ON signal of a power supply switch depending upon the state of the timer whether or not the timer controls a fixed time. CONSTITUTION:Two cases are considered when a power supply switch 205 is turned on. One case is that the time since the power supply switch 205 is turned off at the last time exceeds the controlling time of a timer 204 which controls the time since the switch 205 is turned off and the other is that the time does not exceeds the controlling time. Since it is estimated when the time exceeds the controlling time that deposited and crystallized materials adhere to carrying rollers and guide members inside and outside a liquid, a controlling means 206 switches the paper feed means to the 2nd paper feeding means 202 and feeds cleaning paper. After confirming the completion of cleaning, the controlling means 206 switches a switching means 203 to the 1st paper feeding means 201 and feeds a photosensitive material. In case where the time does not exceed the controlling time, the controlling means 202 assumes that the materials do not adhere to the rollers and members and feeds the photosensitive material by switching the switching means to the 1st paper feeding means 201. Since the deposited materials, etc., adhering to the rollers are transferred to the cleaning paper in such way, the photosensitive material is prevented from being contaminated at the time of actual operation.
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