READING DEVICE, CONTROL METHOD FOR READING DEVICE, AND CONTROL PROGRAM FOR READING DEVICE

To solve a problem in which: when a system is employed which takes a position separated by a predetermined distance from a reference position of a device body as a reading position, an attitude of a document changes due to positional deviation and the like when a sheet material is attached to glass, which may prevent accurate reading of the document.SOLUTION: A scanner 1 comprises: a second glass member 16; a body frame 12; a sheet member 26; a document conveying unit 46; a reading unit 20; and a control unit 30. The sheet member 26 is arranged on the second glass member 16. The document conveying unit 46 conveys a document G so that the document G comes into contact with the second glass member 16 at a position H and the document G comes into contact with the second glass member 16 at a position C. The reading unit 20 reads the document G at a position F that is between a first position and a second position where the document G is not in contact with the sheet member 26 and the second glass member 16. The control unit 30 specifies the position F according to the position of the sheet member 26 detected by the reading unit 20.SELECTED DRAWING: Figure 5 【課題】装置本体の基準位置から予め決められた距離だけ離れた位置を読取位置とする方式を採用した場合、ガラスにシート材を取り付けたときの位置ずれなどによって原稿の姿勢が変化し、原稿を正確に読み取れなくなる虞がある。【解決手段】スキャナー１は、第２ガラス部材１６と、本体フレーム１２と、シート部材２６と、原稿搬送部４６と、読取部２０と、制御部３０とを備える。シート部材２６は、第２ガラス部材１６上に配置される。原稿搬送部４６は、位置Ｈにて原稿Ｇが第２ガラス部材１６に接触し、位置Ｃにて原稿Ｇが第２ガラス部材１６に接触するように原稿Ｇを搬送する。読取部２０は、第１位置と第２位置との間で且つ原稿Ｇがシート部材２６及び第２ガラス部材１６に接触しない位置Ｆにおいて原稿Ｇを読み取る。制御部３０は、読取部２０により検出されたシート部材２６の位置に応じて、位置Ｆを特定する。【選択図】図５