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Pin
1/0
SYMBOL
Signal name and Description
73
OPD70-30, OPD20-00:
-
I
IPD71-31
Response data, from the printer connector
77,
80
IPD21-01
-
82
83
I
RSLI
RSlIN1 :
lIN1 response signal from the printer connector
84
I
RAUT
RATFD1:
AUTFD1 response signal from the printer connector
85
I
BUSY
IBSY1:
When this bit is set to "1", the printer is busy.
86
I
.ACK
IACKO:
When the printer is ready to receive the next data,.
this bit is set to "0" for 5ps. Normally it is set to "1".
87
I
PE
IPE1 :
When this bit is set to "1", the printer is in the state
of "End of paper".
88
I
SEL
ISLCT1 :
When this bit is set to "1", the printer is in the state
of "selected".
89
I
ERR
IERRO:
When this bit is set to "0", the printer is in the state
of either "Paperend", "offline",orof"error".
90
GND
Ground
91
0
OPD7-0 OPD70-00:
-
Output of data or data register to the printer
98
99
0
SliN
SlIN1 :
When this signal is "1", printing is enabled.
100
0
PINT
PINT1:
When this bit is set to" 1", printer is initialized.
B - 6
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