| 摘要 |
Described is a ribbon mask (1) for use with an impact dot matrix printer. The ribbon mask (1) comprises a head confronting surface (2) and a pair of opposed side plates (3R, 3L) each positioned on an opposite side of the head confronting surface (2). An obtuse angle is formed between said head confronting surface (2) and each of the opposed side plates (3R, 3L). A pair of fitting tabs (4R, 4L) are also provided. Each fitting tab (4R, 4L) is positioned on one of the pair of opposed side plates (3R, 3L). An acute angle is formed between each of the fitting tabs (4R, 4L) and the head confronting surface (2). As a result of this construction, when the ribbon mask (1) comes into contact with a sheet of a recording medium, the ribbon mask (1) is deformed so that a portion of the head confronting surface (2) comes into contact with an end of a recording head (10), which in turn prevents the ribbon mask (1) from interfering with the sheet of the recording medium. <IMAGE> |
