Patent ID: 8400487

Claim:
A printer comprising: a sheet transporter which includes a clamper for clamping an edge of a lenticular sheet having a plurality of lenticular lenses and moves said clamper in a sub-scanning direction for transporting said lenticular sheet; a recorder having a thermal head movable between a pressing position where said thermal head presses a rear side of an ink film superimposed on a rear side of said lenticular sheet and a retreat position where said thermal head is apart from the rear side of said ink film, and recording an image on the rear side of said lenticular sheet such that lines elongated in the main-scanning direction are recorded sequentially in synchronization with the transportation of said lenticular sheet, with use of said thermal head at said pressing position which heats said ink film so that ink is sublimated from said ink film and adhered on the rear side of said lenticular sheet; a lens sensor which is positioned between said thermal head and said clamper and optically detects said lenticular sheet; and a lens detector which calculates a lens pitch on said lenticular sheet clamped by said clamper based on the detection result from said lens sensor, when said thermal head is at said pressing position.