Patent ID: 8444240

Claim:
A data generating apparatus that generates respective printing data of ink and processing liquid that are used for printing in which a printing head for ejecting the ink and the processing liquid for forming a transparent layer on a surface of a printing medium is used to eject the ink and the processing liquid to the printing medium while the printing head is moved relative to the printing medium, said apparatus comprising: an acquiring unit configured to acquire printing duty for a unit area of the printing medium, the printing duty being based the printing data of the ink; and a control unit configured to control an ejection order of the ink and processing liquid in ejecting the ink and processing liquid to the unit area of the printing medium under the relative movement of the printing head, so that an amount of the processing liquid ejected prior to the ink is greater than the amount of the processing liquid ejected posterior to the ink in a case of a first printing duty and the amount of the processing liquid ejected prior to the ink is smaller than an amount of the processing liquid ejected posterior to the ink in a case of a second printing duty that is higher than the first printing duty.