| 摘要 |
PROBLEM TO BE SOLVED: To appropriately set a delay of an image signal between a plurality of light sources for exposure.SOLUTION: An image forming apparatus includes: a photosensitive surface 110; a raster output scanner 120 having a first optical emitter 121 configured to scan a first beam across the photosensitive surface 110 and a second optical emitter 122 configured to scan a second beam across the photosensitive surface 110; an integrated scan detector 130 configured to detect the beams from the raster output scanner 120 and configured to produce a signal based on the beams detected from the raster output scanner 120; and a beam calibration controller 140 coupled to the integrated scan detector 130 and can be configured to determine at least one beam delay between the first optical emitter 121 and the at least one second optical emitter 122 based on signals from the integrated scan detector 130 and can be configured to delay operation between the first optical emitter 121 and the at least one second optical emitter 122 based on the at least one beam delay. |
