US 12,293,118 B2
Image forming device
Takahiro Kojima, Mishima Shizuoka (JP)
Assigned to TOSHIBA TEC KABUSHIKI KAISHA, Tokyo (JP)
Filed by TOSHIBA TEC KABUSHIKI KAISHA, Tokyo (JP)
Filed on May 4, 2023, as Appl. No. 18/311,911.
Application 18/311,911 is a continuation of application No. 17/690,042, filed on Mar. 9, 2022, granted, now 11,681,478.
Prior Publication US 2023/0289112 A1, Sep. 14, 2023
Int. Cl. G06F 3/12 (2006.01)
CPC G06F 3/121 (2013.01) [G06F 3/1234 (2013.01); G06F 3/1273 (2013.01); G06F 3/1285 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An image forming device, comprising:
a memory configured to store an execution history of image processing and an adjustment history of the image processing; and
a processor configured to:
increase a count number of the execution history of image processing when executing the image processing,
increase a count number of the adjustment history of the image processing when executing a performance maintenance control and ending normally,
not increase the count number of the adjustment history of the image processing when executing the performance maintenance control and ending abnormally,
wherein a performance maintenance control comprises an adjustment of an image density or of a tone reproducibility based on a first read value corresponding to an adjustment pattern, formed via development of an electrostatic latent image by toner on a transfer belt, of an image forming unit of the image forming device, as compared to a second read value of a belt surface of the transfer belt prior to the development of the electrostatic latent image,
determine that there is a correlation between the count number of the execution history and the count number of the adjustment history,
detect an occurrence of an event based on the correlation, and
output information according to a detection result of the detecting.