| 摘要 |
When a film door is opened, and concurrently when an instant film pack is unloaded from a pack compartment, a spring member causes a counter lever to rotate so that an extremity of the counter lever is disengaged from teeth of a gear, and hence is reset. Furthermore, when the film door is closed, a first slope section of a first rib guides a second slope section of a second rib. Moreover, when an instant film pack is loaded, a third rib is pressed by the instant film pack. In any case, the extremity of the counter lever is engaged with teeth of the gear. Thus, a counter is set ready to perform counting operations in response to a subsequent sequence with which instant film sheets are transferred.
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