Printing device printing a plurality of patches and measuring each patch a plurality of times

A printing device comprising:

• a print head configured to print a patch chart on a print medium, the patch chart including a plurality of patches including a plurality of first patches and one or more second patches, each of the plurality of first patches having a predetermined color, each of the one or more second patches having a user specified color represented by an input color value;
• a measuring member configured to measure a color of a patch;
• and
• a controller,
• wherein the controller is configured to perform:
• a second-patch measurement process to control the measuring member to measure the color of each of the one or more second patches a plurality of times to acquire a plurality of color values for each of the one or more second patches, wherein each of the plurality of color values includes a first component value, a second component value, and a third component value, wherein the second-patch measurement process acquires a plurality of first component values, a plurality of second component values, and a plurality of third component values for each of the one or more second patches by acquiring the plurality of color values for each of the one or more second patches;
• calculating an average value of at least two of the plurality of color values for each of the one or more second patches;
• generating a table correlating an input color value with the average value as a measured color value for each of the one or more second patches, and
• a plurality of calibration processes, each calibration process measuring a color of a reference,
• wherein the plurality of calibration processes includes a first calibration process, and a second calibration process, the first calibration process and the second calibration process being performed in this order without a calibration process being performed therebetween,
• wherein the second calibration process is performed in a case that the number of times of color measurements performed for the second patches after completion of the first calibration process reaches a prescribed number of times.

A method for measuring colors of a plurality of patches included in a patch chart, the plurality of patches including a plurality of first patches and one or more second patches, each of the plurality of first patches having a predetermined color, each of the one or more second patches having a user specified color represented by an input color value, the method comprising:

• performing a second-patch measurement process to control a measuring member to measure a color of each of the one or more second patches a plurality of times to acquire a plurality of color values for each of the one or more second patches, wherein each of the plurality of color values includes a first component value, a second component value, and a third component value, wherein the second-patch measurement process acquires a plurality of first component values, a plurality of second component values, and a plurality of third component values for each of the one or more second patches by acquiring the plurality of color values for each of the one or more second patches;
• calculating an average value of at least two of the plurality of color values for each of the one or more second patches;
• generating a table correlating an input color value with the average value as a measured color value for each of the one or more second patches;
• and
• performing a plurality of calibration processes, each calibration process measuring a color of a reference,
• wherein the plurality of calibration processes includes a first calibration process, and a second calibration process, the first calibration process and the second calibration process being performed in this order without a calibration process being performed therebetween,
• wherein the second calibration process is performed in a case that the number of times of color measurements performed for the second patches after completion of the first calibration process reaches a prescribed number of times,
• wherein the average value includes a first component average value, a second component average value, and a third component average value,
• wherein the first component average value is an average value of at least two first component values included in the at least two of the plurality of color values for each of the one or more second patches, the second component average value is an average value of at least two second component values included in the at least two of the plurality of color values for each of the one or more second patches, and the third component average value is an average value of at least two third component values included in the at least two of the plurality of color values for each of the one or more second patches.