Patent ID: 8491208
Filing Date: 2013-07-23
Classification: B41J

Abstract:
1. A printer comprising: a conveying path for conveying a printing medium; a detecting unit for detecting a change in a thickness of the printing medium which is conveyed along the conveying path; a printing unit comprising a first print unit configured to print information on one surface of the printing medium whose thickness change is detected by the detecting unit, and a second print unit configured to print information on another surface of the printing medium, the first print unit and the second print unit respectively comprising a print head and a platen that are disposed opposite to each other along the conveying path; a first pressure unit configured to press the print head against the platen of the first print unit; a second pressure unit configured to press the print head against the platen of the second print unit; and a control unit configured to control the pressure applied to the print head by each of the first and the second pressure units based on information on the thickness of the printing medium detected by the detecting unit, wherein each of the first and the second pressure units comprises a cam, a plurality of cam arms configured to be turned by the cam, a plurality of press pins each attached to a turning end side of a corresponding one of the cam arms, a plurality of elastic biasing members each configured to elastically bias a corresponding one of the press pins so as to cause the print head to be placed into pressure contact with the platen, and wherein the print head is pressed by at least one of the plurality of press pins through the turning of the cam.