Patent ID: 6625395
Filing Date: 2003-09-23
Classification: G03B

Abstract:
An optical printer for performing exposure with an exposure head while an instant film provided with a developer pod is conveyed by a pair of spreading rollers, said exposure head being disposed so as to be substantially perpendicular to a conveyance direction of said instant film, and said exposure head emitting a line-shaped printing light to said instant film in a sequential manner during the conveyance of said instant film, said optical printer comprising:a conveyance-amount sensor for detecting a conveyance amount of said instant film conveyed by rotating said spreading roller; print control means for monitoring a signal outputted from said conveyance-amount sensor and for controlling a drive of said exposure head in synchronism with a movement of said instant film; and braking means for applying a load to one of the rotation of said spreading roll and the conveyance of said instant film, said braking means restraining a conveyance speed of said instant film so as to be a predetermined speed or less.