| 摘要 |
Provided is a printer in which attachment and detachment manipulation of a platen roller can easily be performed, in which the platen roller can be retained with high reliability at a time of attachment, and in which downsizing of the entire printer is achieved due to use of the platen roller smaller in diameter. A printer (1) includes: a rocking plate (22) including a bearing portion (22a) for axially supporting a platen roller (21); a rock shaft (23) inserted through a slide opening portion (26) so as to be combined with the rocking plate; and a stationary frame (40) to which a recording head (42) is fixed, in which: the rock shaft is slidingly movable in an imaginary in-plane direction orthogonal to a platen axis; the stationary frame includes a first recess (45) into which the bearing portion is disengageably fitted, and a second recess (46) into which, after the bearing portion is fitted, the rock shaft is disengageably fitted; and the bearing portion is undisengageable from inside the first recess while the rock shaft is fitted, and is disengageable from inside the first recess after the rock shaft is disengaged.
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