| 摘要 |
A method for forming a pixel ( 20 ) having a predetermined density onto a sensitized recording medium moving in a length direction energizes a pixel exposure source ( 14 ) to begin exposure at the leading edge ( 34 ) of a pixel ( 20 ) and for a first predetermined time interval. The pixel exposure source ( 14 ) is de-energized for a period depending on the predetermined density and on media transport speed, then re-energized at the termination of the period. The pixel exposure source ( 14 ) is then de-energized at the end of a second predetermined time interval to terminate exposure at the trailing edge ( 36 ) of the pixel ( 20 ), whereby spatial dimensions of each pixel ( 20 ) are maintained at variable transport speed or density of pixel ( 20 ).
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