| 摘要 |
PROBLEM TO BE SOLVED: To reduce an error in a measurement due to an increase in temperature in the vicinity of color measurement means.SOLUTION: An image forming apparatus 100 comprises: conveyance rollers 140 and 141 that convey a recording sheet 110 on which a patch image 220 is fixed; and a color sensor 200 that irradiates the recording sheet 110 to be conveyed with light, receives reflection light from the recording sheet 110, and outputs spectral reflectance. A printer controller 103 corrects the spectral reflectance of the reflection light from the patch image 220 output from the color sensor 200 on the basis of the amount of reflection light received from a plurality of places on the recording sheet 110 other than the patch image 220. |
