Patent ID: 7331728
Filing Date: 2008-02-19
Classification: B41J

Abstract:
1. A printer comprising: (i) a print head which is linearly moved along a print medium to print on the print medium; (ii) a platen which supports the print medium and is located opposite to the print head, and which includes: (iii) a plurality of spring members which support the first and second end portions of the platen so as to be elastically deformable in a moving direction of movement of the platen toward or away from the print head, wherein the print head includes a roller which presses the print medium against the platen to keep a distance between the print head and the print medium constant, and a section modulus of the intermediate portion of the platen is smaller than a section modulus of each of the first and second end portions of the platen, whereby the intermediate portion of the platen is deformable and more easily warped than the first and second end portions of the platen.