| 摘要 |
A printer retracts the platen and transportation rollers when a cover is opened while avoiding interference with parts inside the printer without hindering smooth opening and closing of the cover, increasing printer size, or requiring a large space around the printer. The printer 10 has a frame (cover 12 and unit frame 27) having a paper storage unit 13 for storing a paper roll P1, a cover 28 for opening and closing an opening 26 to the paper storage unit 13, a print head 16 for printing on the roll paper from the paper roll P1, a movable platen 17 freely rotatably coupled to the cover 28 for guiding the back of the roll paper at a proximal position opposite the print head 16, and an abutment 35 for engaging a engagement lever 36 and rotating the movable platen 17 in a contrary direction in conjunction with opening and closing the cover 28. When the cover 28 opens, the abutment 35 rotates the free end side of the movable platen 17 away from the proximal position opposite the print head 16, and when the cover 28 closes the abutment 35 rotates the free end of the movable platen 17 toward the proximal opposite position.
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