Make the dough starter: Mix the flour, water, and yeast for the starter in a small mixing bowl. Beat until the batter is smooth and glossy, about 100 strokes. Let the starter sit 1 to 12 hours: Cover the starter and place it out of the way for at least 1 or up to 12 hours.
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.
17. Other Output Devices. A fax machine or facsimile is a device that codes and encodes documents so they can be transmitted over telephone lines. Many computers include fax capability by using a fax modem. A fax modem transmits computer-prepared documents such as a word processing letter or document that has been digitized with a scanner or digital camera.