For some reason, very few people today use the "fine" setting on
> fax machines which makes a much clearer transmission at very little
> increase in time. They still use "regular" which comes out so fuzzy.
> A fax of a fax is almost unreadable.
In point of fact, 'fine' mode requires *double* the transmission time of 'standard' mode. 'Standard' mode is 100 scan-lines/inch, with 1728 dots per line, employing RLL encoding on the data in a single line. "Fine" mode is _200_ scan-lines/inch, with the same 1728 dots/line, again with RLL encoding of the data in a single line. Unfortunately, in neither setting is there any compression in the 'vertical' direction.