| 摘要 |
<p>PURPOSE:To prevent damage for reel driving shaft when inserting a cleaning cassette by stopping the rotation of a reel motor when e cleaning cassette is inserted. CONSTITUTION:A cleaning cassette 150 is not equipped with holes for inserting reel driving shafts 29 and 30 on one main face 151 and another main face 152. Since the reel driving shafts 29 and 30 does not rise up to be engaged with hubs 10 and 11 even when the cassette is inserted, the loading end signal of the cleaning cassette 150 can be obtained. A control circuit 76 transmits a low-level reel motor drive block signal to a line 162. A control driving circuit 140 is correspondent to the output of an AND gate 242 without directly responding to a drive signal from a terminal 241. Since the driving signal terminal 241 and the line 162 are connected to the AND gate 242, the drive of reel motors 27 and 28 is inhibited while applying the block signal from the line 162 to the AND gate 242. Thus, the rotation of the reel driving shafts 29 and 30 is inhibited while loading the cleaning cassette 150.</p> |
