noun
Technical computing term for a device that optically scans documents or images.
光学式走査器で書類をデジタル化する。
Digitize documents with an optical scanner.
Common loanword for 'scanner', used in everyday contexts. 光学式走査器 is a more formal, technical term.
Compound of 光学式 (optical) + 走査器 (scanner), a technical term likely coined in the context of computing.