noun
reader; reading device
Computing term for a device that reads data, such as a card reader, barcode scanner, or optical reader.
この読み取り機はバーコードを高速で読み取ります。
This reader scans barcodes at high speed.
ICカードの読み取り機が入り口に設置されている。
An IC card reader is installed at the entrance.
Rare mixed okurigana form with 器.
スキャナー is a more general term for a scanner, often used for image or document scanning, while 読み取り機 specifically emphasizes reading data from cards, codes, or media.
リーダー is a common loanword for a reader device, often used in compounds like カードリーダー. 読み取り機 is the native Japanese equivalent, slightly more formal or technical.
Compound of 読み取り (yomitori, 'reading', the continuative form of 読み取る) + 機 (ki, 'machine, device'). A straightforward modern technical term.