| 摘要 |
PURPOSE:To enable the light emitting semiconductor chips of an LED array print head to be easily corrected in brightness so as to be lessened in brightness variation without replacing them. CONSTITUTION:The brightness of light emitting elements 2a of light emitting semiconductor chips 2 is measured, and transparent resin 8 is partially applied onto the surface of a resin coat 7 where the light emitting elements 2a are low in brightness, where the resin coat 7 covers the light emitting semiconductor chips 2. |
