Sharp FO-4700 Operation Manual page 140

Blocking Reception of Unwanted Faxes
3
Entering: Enter a 2-digit number
from "01" to "50" with the numeric
keys. This number identifies the fax
number that you will enter in the next
step.
Clearing: Enter the 2-digit number
that identifies the fax number you
want to clear, and go to Step 5.
4
Enter the fax number.
5
Press the START key.
6
Return to Step 3 to enter (or clear)
another fax number, or press the
STOP key repeatedly to return to the
date and time display.
138
3 4
2
0 1
(Example)
0
5 5
(Example)
START
STOP
Step 3 or
1