Medium transport device, liquid ejection device, and post-process device

A liquid ejection device comprising:

• an ejection section configured to eject liquid on a medium;
• a first path configured to transport the medium on which liquid is ejected by the ejection section;
• a second path arranged downstream of the first path and configured to transport a medium;
• a third path arranged downstream of the first path and configured to transport a medium;
• a branch section at which the first path branches into the second path and the third path;
• and
• a blower section configured to perform a switching operation for switching a transport destination of the medium transported on the first path by blowing air, and configured to transport the medium to either the second path or the third path, wherein
• when a medium that is transported first is defined as a first medium and a medium that is transported subsequently to the first medium is defined as a second medium, in a case where the blower section switches a transport destination between the first medium and the second medium, the blower section starts the switching operation while the first medium is passing through the branch section.

A post-process device connected to a liquid ejection device, the post-process device comprising:

• an introduction section configured to introduce a medium on which liquid is ejected by an ejection section included in the liquid ejection device;
• a first path configured to transport the medium introduced from the introduction section;
• a second path arranged downstream of the first path and configured to transport a medium;
• a third path arranged downstream of the first path and configured to transport a medium;
• a branch section at which the first path branches into the second path and the third path;
• and
• a blower section configured to perform a switching operation for switching a transport destination of the medium transported on the first path to one of the second path and the third path by blowing air to the medium, wherein
• when a medium that is transported first is defined as a first medium and a medium that is transported subsequently to the first medium is defined as a second medium, in a case where the blower section switches a transport destination between the first medium and the second medium, the blower section starts the switching operation while the first medium is passing through the branch section.