Would you believe there was a Group 4?
It came out about 1990 and was short lived. It used data lines instead of phone lines, and could get down to about 2 seconds per page.
I don’t remember who else made them but Canon had 3 models: The L3300, L4600, and L6500. I had a total of about 7 in the field.
The L6500 was a monster. It used the printer portion of the NP9030 copier, which was a 30 PPM engine, but ran at 18 PPM for fax (which ran in LTR-R orientation). It used a DF IV doc feeder.
I don’t remember the prices of the 4600 or 3300, but the 6500 with all options had a list price of $32,000. It even offered a SCSI interface for printing.
Group 4 never took off in the US, but was quite common in Europe and parts of Asia.
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