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.
A fax machine from the late 1990s. 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.