Konica Minolta bizhub C300 Network Fax Operations page 273

Utility mode
7
With a list selected that you want to register, press [Edit]. In the
character input screen, enter the name of a sender that you want to
register and press [OK].
– The registration of up to 20 sender names is available.
– Sender names registered can be selected from the Scan Setting
screen while in the transmission. For details, refer to p. 7-36.
8
Press [OK] and then press [Close].
The Sender Name you have entered is registered.
9
Press [Exit] on the sub-area.
Network Fax
10
10-53