US 12,291,421 B2
Image forming apparatus and control program
Yasuhiro Ishihara, Toyohashi (JP); Toshikazu Higashi, Toyokawa (JP); Masahiro Kamiya, Toyohashi (JP); Shigetaka Kato, Shinshiro (JP); and Katsuhide Sakai, Toyokawa (JP)
Assigned to KONICA MINOLTA, INC., Tokyo (JP)
Filed by KONICA MINOLTA, INC., Tokyo (JP)
Filed on Jun. 24, 2022, as Appl. No. 17/808,729.
Claims priority of application No. 2021-114754 (JP), filed on Jul. 12, 2021.
Prior Publication US 2023/0009567 A1, Jan. 12, 2023
Int. Cl. B65H 7/02 (2006.01); B65H 7/14 (2006.01); B65H 7/20 (2006.01); G03G 15/00 (2006.01)
CPC B65H 7/02 (2013.01) [B65H 7/14 (2013.01); B65H 7/20 (2013.01); G03G 15/5029 (2013.01); B65H 2511/416 (2013.01); B65H 2513/10 (2013.01); B65H 2553/41 (2013.01); B65H 2557/64 (2013.01); B65H 2601/11 (2013.01); B65H 2701/1916 (2013.01); B65H 2801/06 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An image forming apparatus comprising:
a sheet feeding conveyor that feeds and conveys a recording medium to a conveyance path;
an image former that performs image formation on the recording medium conveyed on the conveyance path;
a medium sensor that is disposed on an upstream side in a conveyance direction of the recording medium from the image former on the conveyance path and measures one or more sheet physical properties regarding the recording medium conveyed;
a first hardware processor that determines a type of the recording medium on a basis of the sheet physical properties measured by the medium sensor;
a second hardware processor that determines a sheet arrival delay time, a torque margin, or both for the recording medium conveyed on the conveyance path; and
a third hardware processor that determines whether or not to perform the image formation on a basis of whether the sheet arrival time is within a predetermined value, the torque margin is within a predetermined value, or both determined by the second hardware processor in a case where the type of the recording medium determined by the first hardware processor is a type which is out of product specifications when compared to a storage containing known product specifications and one or more image forming conditions corresponding to each product specification.