Patent ID: 11956405
Assignee: RICOH COMPANY, LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 9:
10. A non-transitory recording medium storing instructions which, when executed by one or more processors, causes the processors to perform a method of controlling total-amount restriction of color materials, the method comprising:
Converting an input total-amount restriction value into a value corresponding to a total gradation value;
for each of colors of color materials included in an image forming apparatus, normalizing a gradation value of color information into a value of a color material amount using a gradation value of the color of the color information by using a conversion table indicating a correspondence between gradation values and color material amounts of each of the colors;
performing total-amount restriction on the normalized and converted value of the color material amount of the each of the colors based on the total gradation value; and
performing an inverse normalization on the respective value of the color material amount of the each of the colors after the total-amount restriction, by using an inverse conversion table corresponding got the conversion table.