Patent ID: 11895284
Assignee: RICOH COMPANY, LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A color chart for performing color adjustment of an image forming apparatus, the color chart comprising:
identification information of an image forming apparatus to which color adjustment is to be applied, the identification information included in a color code including
a plurality of first color patches of a plurality of colors, and
second color patches of fixed colors at both ends of the color code in a color patch arrangement direction;

a color adjustment patch including a plurality of third color patches for performing color adjustment on the image forming apparatus indicated by the identification information; and
a plurality of determination patches, each determination patch of the plurality of determination patches including a color patch for determining presence or absence of in-plane unevenness in the color chart and each determination patch being adjacent to neither a portion of white paper of the color chart nor a white color patch,
wherein the color adjustment patch and the determination patch are arranged at mutually independent positions.