Fax (short for facsimile), sometimes called telecopying or telefax (the latter short for telefacsimile), is the telephonic transmission of scanned printed material (both text and images), normally to a telephone number connected to a printer or other output device. The original document is scanned with a fax machine (or a telecopier), which processes the contents (text or images) as a single fixed graphic image, converting it into a bitmap, and then transmitting it through the telephone system in the form of audio-frequency tones. The receiving fax machine interprets the tones and reconstructs the image, printing a paper copy. Early systems used direct conversions of image darkness to audio tone in a continuous or analog manner. Since the 1980s, most machines modulate the transmitted audio frequencies using a digital representation of the page which is compressed to quickly transmit areas which are all-white or all-black.
To read or mark so as to show a specific meter. from 14th C.
“to scan verse”
To examine sequentially, carefully, or critically; to scrutinize; to behold closely. from 16th C.
“She scanned the passage carefully but could not find what she was looking for.”
To look about for; to look over quickly. from 19th C.
“He scanned the horizon.”
To conform to a metrical structure.
To inspect, analyze or go over, often to find something.
“to scan the hard drive for errors”
To create a digital copy of an image using a scanner.
“to scan a photograph”
“Pencil drawings don’t scan very well.”
To read with an electronic device.
“to scan a barcode; to scan a QR code”
To mount by steps; to go through with step by step.
Close investigation. from 1700s
An instance of scanning.
“The operators vacated the room during the scan.”
The result or output of a scanning process.
“The doctors looked at the scans and made a diagnosis.”
The hair of the head.
A fax machine or a document received and printed by one.
To send a document via a fax machine.