| 摘要 |
<p>PURPOSE: An image forming device is provided to precisely correct chromaticity of a measurement image when the chromaticity is changed by influence of a thermochromism phenomenon. CONSTITUTION: An image forming unit(100) forms a measurement image on a recording paper. A fixing unit fixes the measurement image to the recording paper with heat. When concentration of the measurement image is measured by measurement units(200,208), Correction units(320,321,325) do not correct measurement values of the measurement units. When chromaticity of the measurement image is measured by the measurement units, the correction unit corrects the measurement values. [Reference numerals] (102) Engine control unit; (103) Printer controller; (137) Reverse sensor; (153) First post-fixing sensor; (163) Second post-fixing sensor; (180) Operation unit; (200) Color sensor; (208) Temperature sensor; (301) Profile writing unit; (302) Color sensor control unit; (303) Lab operation unit; (304) Input ICC profile storage unit for color sensor; (305) Output ICC profile storage unit; (307) Input ICC profile storage unit; (311) Transfer roller driving motor; (312) First fixing heater; (313) Second fixing heater; (320) Maximum density correction unit; (321) Density gradation correction unit; (322) LUT writing unit; (323) LUT unit; (324) Density conversion unit; (325) Lab temperature correction unit; (AA) Media name; (BB) Media grammage; (CC) Media surface nature; (DD) Temperature measurement result; (EE) Colorimetric measurement result; (FF) Colorimetric command</p> |
