| 摘要 |
An apparatus for driving a machine in a replaceable cartridge, the cartridge supporting a first rotatable element for transferring rotary motion to the machine, includes a housing for accommodating the cartridge at a pre-determined position. A second rotatable element is supported in the housing. A locking mechanism includes a component, provided on a certain one of the first and second rotatable elements, and capable of assuming a state of readiness in which, with the cartridge at the pre-determined position, the component is positioned relative to the other of the rotatable elements such that, upon rotation of the second rotatable element in at least a first direction, the first rotatable element rotates with the second rotatable element, and in which state the first and second rotatable elements are axially decoupled. The certain one of the first and second rotatable elements is provided with a mechanism for exerting a torque on the component tending to establish the state of readiness.
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