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DLQ-3000+
Table 1-25 shows the connector pin assignment and signals for forward channel of the
parallel interface.
Table 1-25. Connector Pin Assignments and Signals (Forward Channel)
Pin No.
Signal Name
1
/STROBE
2-9
DATA 1-8
/ACKNLG
10
BUSY
11
PE
12
13
SLCT
/AFXT
14
31
/INIT
32
/ERROR
36
/SLIN
18
Logic H
35
+5V
17
Chassis GND
GND
15,34
NC
Note)
1. */* at the beginning of a signal means active low.
2. The I/O column indicates the direction of the signal as viewed form the printer.
1-30
Return
I/O
GND Pin
The strobe pulse. Read-in of data is
19
I
performed at the falling edge of this
pulse.
The data 0 to data 7 signals
represent data bits 0 to 7,
20-27
I
respectively. Each signal is at a HIGH
level when data is logical 1 and a
LOW level when data is logical 0.
This signal is a negative pulse
28
O
indicating that the printer can again
accept data.
When this signal is at a HIGH level,
29
O
the printer is not ready to accept data.
When this signal is at a HIGH level,
28
O
the paper empty status is detected.
Always at a HIGH level when the
28
O
printer is powered on.
30
I
Not used.
The falling edge of a negative pulse or
a LOW signal on this line causes the
30
I
printer to initialize. Minimum 50 us
pulse is necessary.
When the printer detects an error, this
29
O
signal goes LOW.
30
I
Not used.
Pulled up to +5V via 3.9 K-ohm
O
resistor.
O
Pulled up to +5V via 3.3 K-ohm
resistor.
Chassis ground.
Signal ground.
Not connected.
Description
Rev. A
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