Patent ID: 11936837
Assignee: RICOH COMPANY, LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An image forming apparatus, comprising:
a memory that stores a colorimetric value of a gradation correction chart that is output by the image forming apparatus and environmental information each time of acquisition of the colorimetric value; and
circuitry configured to
predict a maximum density of an image formed by the image forming apparatus based on the colorimetric value associated with particular environmental information among the environmental information stored in the memory, the particular environmental information being within a predetermined range with reference to current environmental information, when the image forming apparatus is to output the gradation correction chart,
adjust the maximum density of the image formed by the image forming apparatus in a case that the predicted maximum density is lower than a target maximum density that is set in advance for input image data according to which the image forming apparatus performs an image output, and
correct a gradation correction table based on the colorimetric value of the gradation correction chart that is output by the image forming apparatus and the target maximum density.