TA Triumph-Adler DCC 6526L - Manual (Page 204)

Sending Functions
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5
8 Press the  or  key to select the density of the
ground color. A smaller value decreases the
density of the ground color, and a larger value
increases the density.
9 Press the OK key.
Completed. is displayed and the screen returns to
the basic screen for sending.
10 Specify the destination, and press the Start key to
start sending.