scanner
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scanner
An electronic device that optically scans documents, photos, or other flat originals and converts them into a digital image.
Ich muss dieses Formular noch mit dem Scanner einlesen und per E-Mail verschicken.
I still need to scan this form with the scanner and send it by email.
The verb that describes the activity done with a scanner is 'scannen' (to scan). It is used for all meanings of 'Scanner' (scanner).
Ich muss die Rechnung scannen und per E-Mail versenden.
I need to scan the invoice and send it by email.
Which type of scanner is meant is easy to recognize from the context. Words like 'Dokument' (document) point to an office scanner, 'Kasse' (checkout) to a barcode scanner, and 'Krankenhaus' (hospital) to a medical device.
Im Supermarkt hat der Scanner den Preis nicht erkannt.
At the supermarket, the scanner did not recognize the price.
When a medical scanner is meant, the preposition 'in' is often used. You lie 'im Scanner' (in the scanner) or have to go 'in den Scanner' (into the scanner).
Die Untersuchung im Scanner dauert etwa 20 Minuten.
The examination in the scanner takes about 20 minutes.
When it is about digitizing documents, 'Scanner' (scanner) is often used with verbs such as 'einlesen' (to scan/read in), 'digitalisieren' (to digitize), or simply 'scannen' (to scan).
Mit diesem Scanner kann man bis zu 50 Seiten pro Minute einlesen.
With this scanner, you can scan up to 50 pages per minute.
reader
'der Leser' and 'der Scanner' can both be technical devices that take in information. A technical 'Leser' reads data from a medium, for example from a card or a chip. 'der Scanner' usually scans a document, a photo, or a barcode and turns it into digital data. The words can be confused because some devices do both: for example, they read a code. When the general idea is reading data from something, 'Leser' fits. When an image, a document, or a barcode is being scanned, 'Scanner' is usually more precise.
An der Kasse funktioniert der Scanner nicht, und die Verkäuferin tippt den Preis ein.
The scanner at the checkout is not working, so the sales assistant enters the price manually.
Der Leser an der Tür erkennt die Karte nicht, deshalb kommt Tom nicht ins Büro.
The reader at the door does not recognize the card, so Tom cannot get into the office.