Patent ID: 8491080

Claim:
A recording device, comprising: a paper feeder tray that accommodated a recording medium; a print head that discharges ink on the recording medium to record an image thereon; a transfer roller that transfers the recording medium and a printed test chart on which multiple marks are arranged for adjusting a rotation amount of the transfer roller; a control device that controls the transfer roller; a first detection device that detects a rotation position of the transfer roller; a second detection device that detects the multiple marks arranged on the printed test chart; and a transfer device that transfers the recording medium from the paper feeder tray to the second detection device, wherein the control device obtains a difference between an actual transfer amount of each of the multiple marks obtained by detecting the multiple marks by the second detection device and a set theoretical transfer amount of each of the multiple marks relating to the rotation position of the transfer roller, calculates a correction amount for a rotation amount of the transfer roller based on a relationship between the rotation position of the transfer roller and the difference, and controls the rotation amount of the transfer roller using the correction amount, and wherein, based on the relationship between the rotation position of the transfer roller and the difference, the control device determines a first difference with regard to a current rotation position of the transfer roller and a second difference with regard to a position after rotation of the transfer roller, and calculates the correction amount from a difference between the first difference and the second difference.