Interface Specifications
Your printer is equipped with a parallel interface.
Specifications and pin assignments
This interface has the following characteristics:
Data format: B-bit parallel
Synchronization: STROBE pulse
Handshake timing: BUSY and ACKNLG signal
Signal level:
TTL compatible level (with rise/fall times
of less than 0.2 µsec).
Connector: 36-pin 57-30360 (Amphenol) connector or
equivalent
Connector pin assignments and a description of their respective
interface signals are shown in the following table.
Signal
Return
Pin
Pin
Signal
Direction
Description
1
19
STROBE IN STROBE pulse to read data. Pulse
width must be more than 0.5 µsec at
the receiving terminal.
2
20
DATA 1
IN
These signals represent information of
3 21
DATA 2
IN
the 1st to 8th bits of parallel data,
4
22
DATA 3
IN
respectively.
5
23
DATA 4
IN
Each signal is at HIGH level when data
6
24
DATA 5
IN
is logical 1 and LOW when it is logical 0.
7
25
DATA 6
IN
8
26
DATA 7 IN
9
27
DATA 8
IN
10
28
ACKNLG
OUT
About a 12 µsec pulse. LOW indicates
that data has been received and that the
printer is ready to accept more data.
11
29
BUSY
OUT
HIGH indicates that the printer cannot
receive data in the following cases:
1) During data entry (ea. char. time)
2) When off line
3) During printer error state
Technical Specification 7-7
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