| 摘要 |
A printer includes a casing, a cover, a ribbon cassette and a ribbon spool. The casing has a space and an opening. The cover is pivotally connected to the casing, and configured to close the opening. The cover has a protruding portion facing the space. The ribbon cassette is detachably accommodated in the space. The ribbon cassette includes elastic arms, at least one of which has a first hooking structure. The ribbon spool is detachably and pivotally connected to the ribbon cassette. The ribbon spool includes a second hooking structure. Before the cover closes the opening, the second and the first hooking structures are mutually locked. When the cover closes the opening, the protruding portion inserts between the elastic arms, such that the first hooking structure detaches from the second hooking structure, allowing rotational freedom of the ribbon spool relative to the ribbon cassette. |
| 主权项 |
1. A printer, comprising:
a casing having a space and an opening communicated with the space; a cover pivotally connected to the casing, and configured to close the opening, the cover having at least one protruding portion facing the space; a ribbon cassette detachably accommodated in the space, the ribbon cassette comprising at least one pair of elastic arms oppositely disposed, and at least one of the elastic arms having a first hooking structure facing the other one of the elastic arms; and a ribbon spool detachably and pivotally connected to the ribbon cassette, the ribbon spool comprising a second hooking structure located corresponding to the first hooking structure; wherein before the cover closes the opening, the second hooking structure and the first hooking structure are mutually locked, so as to restrict rotation of the ribbon spool relative to the ribbon cassette, and when the cover closes the opening, the protruding portion inserts between the elastic arms, such that the elastic arms move away from each other, and the first hooking structure detaches from the second hooking structure, allowing rotational freedom of the ribbon spool relative to the ribbon cassette. |
