| 摘要 |
PROBLEM TO BE SOLVED: To solve burden for adjustment on the user's side and for exchanging operation for changing characteristics even when different inks are suitably used, by setting a spraying condition in accordance with a result of detection on an exchanged ink for txtile printing. SOLUTION: When an ink tank is exchanged, concn. characteristics of an ink stored in the exchanged tank are detected by means of four kinds of detecting switches 5a-15d. For doing so, either of the detecting switches 15a-15d is turned on in accordance with the kind of the tank and one of connecting circuits with thermistors Tha-Thd and resistances R1-R4 is selected. I.e., when the concn. of the ink is high, the detecting switch 15d is turned on to detect that an ink with a high concn. is stored in the ink tank. In this case, as the value of resistance of the resistance R4 is low, the partial pressure electric voltage between the thermistor Thd becomes small. Therefore, the electric current passing through a transistor Q1 becomes small and feeding electric voltage VC of a piezoelectric oscillator 11 outputted through a transistor Q2 becomes large. |
