Patent ID: 8695529

Claim:
An application apparatus comprising: a medium conveying device which holds and conveys a medium in a predetermined conveyance direction; an application roller which applies a liquid to the medium held by the medium conveying device; an application roller rotating device which rotates the application roller at a predetermined rotational speed; a measuring roller which feeds a predetermined measured amount of the liquid to the application roller; a measuring roller rotating device which rotates the measuring roller at a predetermined rotational speed; a first moving device which causes relative movement between the application roller and the medium conveying device to change a distance between the application roller and the medium conveying device; a second moving device which causes relative movement between the application roller and the measuring roller to change a distance between the application roller and the measuring roller; and a movement controlling device configured to control the second moving device in such a manner that, when the application roller and the medium are brought into abutment with each other from a state in which the application roller and the medium are separated from each other, a front end part of the medium in terms of the conveyance direction abuts with an abutment position on a circumferential surface of the application roller when the application roller and the measuring roller are brought into abutment with each other from a state in which the application roller and the measuring roller are separated from each other, wherein, when a moving distance of the circumferential surface of the application roller from the abutment position in which the application roller and the measuring roller are brought into abutment with each other to an abutment position in which the application roller and the medium are brought into abutment with each other, is taken as L 1 , and when a moving distance of the front end part of the medium from a position of the front end part of the medium when the application roller and the measuring roller are brought into abutment with each other, to a position of the front end part of the medium in which the application roller and the medium are brought into abutment with each other, is taken as L 2 , the movement controlling device is configured to control an operation timing of the first moving device and an operation timing of the second moving device in such a manner that a relationship of L 1 =L 2 is satisfied.