noun
read station; reading unit
Computing term for a device or component that reads data, such as a card reader or scanner input section.
この装置の読取り部にカードを通してください。
Please swipe the card through the read station of this device.
読取装置 is a broader term for a reading device or scanner, while 読取り部 specifically refers to the reading section or station within a device.
Compound of 読取り (yomitori, 'reading') and 部 (bu, 'part' or 'section').