US 12,301,770 B2
Information processing apparatus, abnormality detection method, storage medium, and information processing system
Hideyuki Kihara, Kanagawa (JP); Yusuke Taneda, Kanagawa (JP); and Yuta Nagata, Kanagawa (JP)
Assigned to Ricoh Company, Ltd., Tokyo (JP)
Filed by Hideyuki Kihara, Kanagawa (JP); Yusuke Taneda, Kanagawa (JP); and Yuta Nagata, Kanagawa (JP)
Filed on Mar. 3, 2023, as Appl. No. 18/177,886.
Claims priority of application No. 2022-035013 (JP), filed on Mar. 8, 2022; and application No. 2022-192479 (JP), filed on Nov. 30, 2022.
Prior Publication US 2023/0291842 A1, Sep. 14, 2023
Int. Cl. H04N 1/00 (2006.01); H04N 1/60 (2006.01)
CPC H04N 1/00037 (2013.01) [H04N 1/00013 (2013.01); H04N 1/6044 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An information processing apparatus, comprising processing circuitry configured to:
detect an abnormality in an image reading apparatus from a first spectral reflectance and a second spectral reflectance, the first spectral reflectance being generated based on data read, by one line sensor, from a reference white plate installed in the image reading apparatus, the second spectral reflectance being stored in a memory of the information processing apparatus prior to a time of shipment of the information processing apparatus;
identify a cause of an abnormality in the image reading apparatus, in response to detecting the abnormality, based on the first spectral reflectance and the second spectral reflectance; and
determine the cause of the abnormality as a deterioration of the reference white plate in response to a large difference in distribution between the first spectral reflectance and the second spectral reflectance being confined to a particular wavelength range.