| 摘要 |
The invention relates to when the printing medium, such as paper are separated one at a time by a separation piece, the engagement of a projected part of a paper supporting plate and a contact part of a pressure applying part is released and the separation piece is pressed by a separation piece contact part. Thereby, the separation piece contacts the paper supplying roller with a large urging force from the first and second pressing springs. When the paper is transferred after the separation of the paper by the separation piece, the projected part of the paper supporting plate contacts the contact part of the pressure applying part to release the pressure of the separation piece from the separation piece contact part. Thereby, the pressure power generated between the paper supplying roller and the separation piece is selectively switched. When the paper is separated, the pressure power is increased to prevent overlapped transferring of the papers. When the paper is transferred by the transferring roller, the pressure power is decreased to decrease the back tension generated between the paper supplying roller and the transferring roller. Thereby, the deterioration of paper transferring accuracy can be prevented.
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