| 摘要 |
<p>PURPOSE:To prevent the occurrence of another failure even when a sensor, etc., are out of order by controlling the time for driving the tray at the time of ejecting the cartridge. CONSTITUTION:When a limited position of driving the tray 17 is detected by a tray upper limit detecting part TU or a tray lower limit detecting part TL, an adder/subtractor 73 is set for an initial value by a measurement control part 72 with an instruction of a tray driving command part 70, and also a comparator 74 is set for a comparison value. When the tray is driven by a tray driving part TD with an instruction of the tray driving command part, the value of the adder/subtractor is renewed by this driving time. The renewed value of the adder/subtractor is compared by the comparator with its preset comparison value, and upon coincidence, the tray is stopped and an error is reported. The tray is controlled by the tray driving command part 70 based on information from a cartridge detecting part CS, the tray upper limit detecting part TU, the tray lower limit detecting part TL and the comparator 74.</p> |
