Epson ActionPrinter 4000 User Manual - Page 217

Interface Specifications, Pin Assignments for the Parallel Interface

Page 217 highlights

Interface Specifications Your printer is equipped with an 8-bit parallel interface. For specifications on optional interfaces, refer to their manuals. Pin Assignments for the Parallel Interface 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 microseconds 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. Each signal is at HIGH 5 23 DATA 4 IN level when data is logical 1 and LOW 6 24 DATA 5 IN 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 an 11-microsecond pulse. LOW indicates that data has been received and that the printer is ready to accept more data. 11 29 BUSY OUT A HIGH signal indicates that the printer cannot receive data. The signal goes HIGH in the following cases: 1) During data entry (ea. char. time) 2) During printing 3) When off line 4) During printer-error state 12 30 PE OUT A HIGH signal indicates that the printer is out of paper. Technical Specifications 8-9

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Interface Specifications
Your printer is equipped with an 8-bit parallel interface. For
specifications on optional interfaces, refer to their manuals.
Pin Assignments for the Parallel Interface
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
microseconds 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. Each signal is at HIGH
5
23
DATA 4
IN
level when data is logical 1 and LOW
6
24
DATA 5
IN
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 an 11-microsecond pulse. LOW
indicates that data has been received
and that the printer is ready to accept
more data.
11
29
BUSY
OUT
A HIGH signal indicates that the printer
cannot receive data. The signal goes
HIGH in the following cases:
1) During data entry (ea. char. time)
2) During printing
3) When off line
12
30
PE
OUT
4) During printer-error state
A HIGH signal indicates that the printer
is out of paper.
Technical Specifications 8-9