Patent ID: 8651757
Filing Date: 2014-02-18
Classification: B41J

Abstract:
1. A printer, comprising: a platen that determines a printing position of a print head; a platen frame on which the platen is mounted; and a platen support mechanism that supports the platen frame movably to a closed position, where the platen is positioned to the printing position, and an open position separated from the closed position, and has a platen positioning mechanism that positions the platen frame at four places so that the platen frame is in a predetermined posture at the closed position, the four places including a first front position and a second front position on opposite sides at the front in the opening direction, and a first back position and a second back position on opposite sides at the back in the opening direction; wherein the platen positioning mechanism includes a first guide channel formed at the first front position on one side of the platen frame and a first side panel part of a main printer frame opposite the first back position, a second guide channel formed at the second front position on the other side of the platen frame and a second side panel part of the main printer frame opposite the second back position, a first front positioning pin and a first back positioning pin respectively disposed at the first front position and the first back position of the platen frame, a second front positioning pin and a second back positioning pin respectively disposed at the second front position and the second back position; and the first front positioning pin and the first back positioning pin are guided by the first guide channel, and the second front positioning pin and the second back positioning pin are guided by the second guide channel, from an intermediate position of platen frame movement toward the closed position, and are thereby respectively positioned to the first front position and the first back position, and the second front position and the second back position, when the platen frame is in the closed position.