Patent ID: 9669639
Date: 2017-06-06
CPC Classifications: B41J,B41M

Claim:
1. A post-processing liquid application device, comprising: an ejecting head configured to eject a post-processing liquid in a specific ejection pattern on a recording medium after ink has been attached to the recording medium to form at least one of a character and an image generated based on image information on the recording medium; and a control unit configured to select the specific ejection pattern of the post-processing liquid to be ejected by the ejecting head from a plurality of ejection patterns based on a coverage rate calculated from the image information; wherein, when the control unit determines that the coverage rate is low, the control unit selects, as the specific ejection pattern, a first ejection pattern for ejecting the post-processing liquid on a printed portion of a print region of the recording medium or ejecting the post-processing liquid on the printed portion and a surrounding portion of the printed portion to which the ink forming the at least one of the character and the image is attached; and wherein, when the control unit determines that the coverage rate is high, the control unit selects, as the specific ejection pattern, a second ejection pattern for ejecting the post-processing liquid over an entire surface of the print region of the recording medium.