Liquid ejection apparatus including curl reduction device, curl reduction method executed in the apparatus, and storage medium used for the apparatus

A curl reduction method that is to be executed in a liquid ejection apparatus comprising:

• (a) a storage device configured to store therein an image data set representing a plurality of images that are to be formed on a plurality of recording media;
• (b) a liquid ejection head configured to perform an image formation on each of the plurality of recording media, so as to form, on the recording media, the respective images represented by the image data set that is stored in said storage device;
• (c) a curl reduction device configured to reduce curl caused in each of the recording media having a corresponding one of the images that has been formed thereon by said liquid ejection head;
• and (d) an output tray configured to receive therein each of the recording media whose curl has been reduced by said curl reduction device, such that the received recording media are stacked on said output tray,
• said curl reduction method comprising:
• specifying which one of the recording media corresponds to an earlier one of the recording media that is to be subjected to the image formation earlier than a later one of the recording media;
• specifying which one of the recording media corresponds to said later one of the recording media that is subjected to the image formation later than said earlier one of the recording media;
• and
• controlling said curl reduction device, such that the curl caused in said earlier one of the recording media is reduced by a smaller degree than the curl caused in said later one of the recording media.

A non-transitory computer-readable storage medium storing computer-readable instructions therein that, when executed by a processor of a liquid ejection apparatus comprising:

• (a) said processor;
• (b) a storage device configured to store therein an image data set representing a plurality of images that are to be formed on a plurality of recording media;
• (c) a liquid ejection head configured to perform an image formation on each of the plurality of recording media, so as to form, on the recording media, the respective images represented by the image data set that is stored in said storage device;
• (d) a curl reduction device configured to reduce curl caused in each of the recording media having a corresponding one of the images that has been formed thereon by said liquid ejection head;
• and (e) an output tray configured to receive therein each of the recording media whose curl has been reduced by said curl reduction device, such that the received recording media are stacked on said output tray, cause the liquid ejection apparatus to execute the steps of
• specifying which one of the recording media corresponds to an earlier one of the recording media that is to be subjected to the image formation earlier than a later one of the recording media;
• specifying which one of the recording media corresponds to said later one of the recording media that is subjected to the image formation later than said earlier one of the recording media;
• and
• controlling said curl reduction device, such that the curl caused in said earlier one of the recording media is reduced by a smaller degree than the curl caused in said later one of the recording media.