| 摘要 |
An image quality measurement apparatus measures quality of an image printed on a substrate. The apparatus comprises illumination elements and image sensors, both mounted in close proximity to the substrate, a controller of the image sensors and illumination elements, and an analyzer of the measurements of the image sensor. The measurements can be used as real time feedback to a printer. The measurements may include density, colorimetric data, and inspection of printed sheet using Contact Image Sensors (CIS).
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