Patent ID: 8928960
Filing Date: 2015-01-06
Classification: H04N

Abstract:
1. A control device comprising: a processor; and a memory storing computer-readable instructions therein, the computer-readable instructions, when executed by the processor, causing the control device to perform: acquiring a measured scan value, the measured scan value being acquired by measuring optically a scan target image printed on a recording medium; setting a measured offset amount using the measured scan value by reference to predetermined correlations between predetermined scan values and predetermined offset amounts, the measured offset amount indicating a difference between the measured scan value and a predetermined reference value, the predetermined scan values being optically acquired from test images that have been printed by using a predetermined colorant, the predetermined scan values including a first predetermined scan value, a second predetermined scan value, and a third predetermined scan value, the third predetermined scan value being different from the first predetermined scan value and the second predetermined scan value, the predetermined offset amounts including a first predetermined offset amount, a second predetermined offset amount, and a third predetermined offset amount, the third predetermined offset amount being different from the first predetermined offset amount and the second predetermined offset amount, the predetermined correlations being set such that: determining a control value using the measured offset amount, the control value being used for controlling an amount of colorant to be ejected during printing.