S T R O B E /
Pulse is used to clock read d ata in . T h e pulse w id th m ust
be m ore th an 1 Msec a t receiving p rin te r. Read in o f data
is pe rfo rm ed a t th e " lo w " level o f th is signal.
A C K N L G /
Ind ic a tes th a t d ata has been received b y th e p rin te r . N e w
da ta can n ot be received b e fore A C K N L G is reset. Pulse
w id th 2.5 Msec to 1 0 Msec.
B U S Y
W hen " H IG H " th e p rin ter indicates th a t it ca n not receive
d a ta . T h e signal becom es " H IG H " in th e fo llo w in g cases:
- During d ata e n try (dep e n d in g on prin te r)
- D u rin g p rin ting op e ratio n
- In o ff-lin e state
- D u rin g p rin ter e rro r status
- D uring line feed
D A T A 1 -8 Signals represe n t in fo rm atio n o f parallel d a ta " H IG H " =
log 1; " L O W " = log 0 .
PE
" H IG H Signal indicates th a t th e p rin te r is o u t o f paper.
S L O T (In p u t) Printe r is in selected m ode (o p tio n ).
A U T O F E E D / (O u tp u t) A u to line feed (o p tio n ).
I N I T / (O u tp u t) P rin ter reset (o p tio n ).
E R R O R /
(In p u t ) Indicates p rin te r e rro r (o p tio n ) fo r ex am p le at
paper e n d , o f f-lin e , s a fety sw itch o p e n , fa ilu re status.
T E S T 1-4 O p tio n al lo o p test in puts.
Doc :017-0033040
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