TX=TRANSMISSION RX=RECEPTION
Most fax communication problems can be resolved by the following steps.
a. Change the transmit level. (Service code: 596, refer to 2.4.4. Service Function Table.)
b. Change the TX speed/RX speed. (Service code: 717/718, refer to 2.4.4. Service Function Table.)
If the problem remains, see the next page.
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KX-FT21RS