Olivetti D-COLOR P26 - Manual (Page 114)

Menu functions> 114
TRUE BLACK OFF / ON Selects whether black image data
is printed using black toner (ON)
or 100% CMY (OFF). (Valid in PCL
emulation mode only.)
PEN WIDTH
ADJUST
Tray ID#
MP TRAY
4
I TEM S ETTINGS E XPLANATION