| 摘要 |
PROBLEM TO BE SOLVED: To decrease the number of switches and save cost in a device for detecting a regular combination of a form cylinder and ink bottle by means of a switch and operating body. SOLUTION: A bottle 50 is inserted in the installation pipe 60 within a form cylinder to thereby be connected to a suction pipe 52. The color of ink used is determined every form cylinder. Switch securing positions within the form cylinder are three, and a switch SW and a dummy switch DS are used in combination. The numbers of combination are seven ways. The dummy switch DS includes a dummy operation place in accordance with an actuator of the switch WS. The bottle has operation boards provided to three pieces. The combination shown in the drawing is erroneous, since the operation board P2, P3 come in collision against two dummy switches DS, the operation plate P1 fails to operate the switch SW. The bottle can not be inserted therein. In conventional ways respective three switches are set on the form cylinders, and discrimination is done by a combination of the operation plates at the bottle side. Thus, the number of switches can be reduced more than in conventional manner.
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