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Signal
Return
Pin No.
Pin No.
Signal
Direction
Description
19
*STROBE
In
STROBE pulse to read data in.
Pulse width must be more than 100
nsec at receiving tenninal. The sig-
na1level is nonnally "high"; read-
in of data is perfcmned at the ''low''
level of this signal.
2
20
DATA 1
In
These signals repreaent infcmna-
21
DATA 2
In
tion of the 1 st to 8th bits or
4
22
DATA 3
In
parallel data respectively.
5
23
DATA 4
In
Each signal is at ''high'' level
6
24
DATA 5
In
when
data
is logical "1" and "low"
7
25
DATA 6
In
when data is logical "0".
26
DATA 7
In
9
27
DATA g
In
10
28
*ACKNLG
Out
Approx.
4
Jls
pulse; ''low'' indi-
cates that data has been received
and the printer is ready to accept
other data.
II
29
BUSY
Out
A ''high'' signal indicates that the
printer cannot receive data.
The
signal becomes ''high'' in the fol-
lowing cases: I) Character received
that corresponds to setting in SI; 2)
FIFO full oondition reached; 3)
In
"oflline" state; 4) During printer er-
ror status.
12
30
PE
Out
A ''high'' signal indicates that the
printer is out of paper.
13
SLCT
Out
This signal indicates that the printer
is in the selected state.
14
NC
Not Used.
Continued on next page.
Printer Specifications
1-5
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