Panasonic KX-P4440 - Manual (Page 141)

Designation of Signal Polarity of DTR
S ele cts P O L A R IT Y (M A R K o r S P A C E ) to m atc h th e c o m p u te r th ro u g h
th e fro n t p a n el.
M A R K : W h e n th e sig n al is '‘m a rk ”, th e p rin te r te lls th e co m p u ter t h at
it ca n n o t a cce p t tra n sferrin g d a ta.
S P A C E : W h e n th e sig n al is ‘‘sp a ce”, th e p rin te r te lls th e co m p u ter t h at
it ea n n o t a cce p t tra n sferrin g d a ta.
M A R K is s et at sh ip m en t.
W h e n X O N /X O F F P ro to c o l is sele cted , D T R s ig n al is h eld “m a rk ” o r
“sp a ce” d ep en d in g o n P O L A R IT Y .
m a rk : lo g ic “1 ” (— 1 2 V )
sp a ce : lo g ic “0 ” (+ 1 2 V )
Specifications 6-13