US 12,120,274 B2
Image formation with increased productivity by determining surface state of medium conveying roller based on detected fluctuation range in roller driving load
Akihiro Hayashi, Okazaki (JP); Yuji Kobayashi, Toyohashi (JP); Hiroshi Eguchi, Toyohashi (JP); and Takeshi Tamada, Toyohashi (JP)
Assigned to Konica Minolta, Inc., Tokyo (JP)
Filed by Konica Minolta, Inc., Tokyo (JP)
Filed on Jul. 26, 2023, as Appl. No. 18/226,296.
Claims priority of application No. 2022-129206 (JP), filed on Aug. 15, 2022.
Prior Publication US 2024/0056532 A1, Feb. 15, 2024
Int. Cl. H04N 1/00 (2006.01)
CPC H04N 1/00037 (2013.01) [H04N 1/00015 (2013.01); H04N 1/00074 (2013.01); H04N 1/00602 (2013.01); H04N 1/00909 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An image forming apparatus comprising:
a drive source that drives a roller that conveys a print medium; and
a hardware processor that detects a fluctuation range of a load applied to the drive source by driving the roller, and determines a state of a surface of the roller on a basis of a detection result.