| 摘要 |
<p>Abstract A control device (11) includes an acquiring unit (31) that acquires code image data expressing a code image (41) 5 having dots (42) that are arranged in an array that expresses information; a generating unit (32) that extracts the dots (42) from the code image (41) expressed by the acquired code image data and generates patch image data expressing multiple patch images (51-55) in which the 10 extracted dots (42) are orderly arranged in different densities; an image-formation control unit (33) that controls an image forming unit (14) so that the image forming unit (14) forms the multiple patch images (51-55) on the basis of the generated patch image data in accordance 15 with a preset image forming condition by using an invisible toner that absorbs infrared light or ultraviolet light; a measuring unit (34) that measures densities of the multiple patch images (51-55) formed by the image forming unit (14); and a changing unit (35) that changes the image forming 20 condition if at least one of the measured densities of the multiple patch images (51-55) is outside a density range set in accordance with a density of the corresponding dots (42) based on a correspondence relationship between the measured densities and densities of the dots in the multiple patch 25 images (51-55), so that all of the measured densities are set within corresponding density ranges set in accordance with the densities of the corresponding dots (42). 12 _ _ _11 13 COMMUATIONIT CONTROLLER MEMORY /_,14 FORMING UNIT 22K 21K 2 021C 21M /21Y '21T 14 22 / 22C 22M ' 22Y / 22T 24K 24C 24M 24Y 24T 28 25K 25C 25M 25Y 25T ______________ 27_____ 29</p> |
