Importance

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Abstract

An optical printer performs optical writing on a film and includes a print head with a luminous source and a plurality of filters selectively set to the luminous source by moving toward a predetermined direction with respect to the luminous source, and a moving unit for allowing the print head to be reciprocated in the predetermined direction. A transfer unit is disposed the print head to allow the filters to be moved by a regular amount, i.e., a predetermined pitch('c' to 'e'), thereby setting a desired filter to the luminous source. The transfer unit is operated to by the regular amount from one end side of the moving region of the print head. Further, a reset unit is disposed to the print head and is operated when the print head is moved more than the moving region from one end side ad of the moving region of the print head, forcing the moved filter to return to the original position. Furthermore, one end side of the moving region of the print head is provided with an accelerating region for accelerating the print head at a regular speed.

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First Claim