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Image scanning device, image forming apparatus, and light source failure detection method Grant 8,384,967 - Shinkawa February 26, 2 | 2013-02-26 |
Image scanning device and image forming apparatus including the same Grant 8,289,585 - Shinkawa October 16, 2 | 2012-10-16 |
Image scanning device and image forming apparatus with varying document size detection periods Grant 8,248,670 - Shinkawa August 21, 2 | 2012-08-21 |
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