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7-3. Connectors and Signals
Pin No. Signal Name IN/OUt
1
StROBe
2-9
Data1-8
10
aCk
11
BUSY
12
PaPeR
OUt
13
SeleCteD
14-15
-
16
SIGNal GND
17
CHaSSIS GND
18
lOGIC
19-30
GND
31
ReSet
32
eRROR
33
eXt GND
34
-
35
+5V
36
SeleCt IN
( 18 )
(3 6 )
Figure 7-3. Parallel Interface Connector (Printer side)
Signals when data is ready to be read.Signal goes
IN
from HIGH to lOW (for at least 0.5 microsec.)
when data is available.
These signals provide the information of the first
IN
to eighth bits of parallel data.each signal is at HIGH
level for a logical 1 and at a lOW level for a logical 0.
OUt a 9 microsecond lOW pulse acknowledges
receipt of data.
When this signal goes lOW, the printer is ready
to accept data. When the printer is in one of the
OUt conditions below. " HIGH" is set.
1. Data being entered.
2. Off line.
3. error condition.
OUt This signal is normally lOW. It will go HIGH if the
printer runs out of paper.
OUt This signal is HIGH when the printer is online.
Unused
Signal ground.
Chassis ground, isolated from logic ground.
This pin is pulled-up 4.7 k W resistor to +5V.
twisted pair return signal ground level.
When this signal gose lOW, the printer is reset
IN
to its power-on condition.
this signal is normally HIGH. this signal goes
OUt lOW to signal that the printer cannot print due
to an error condition.
Refer to Item 7-6 emergency Suspension.
external ground.
Unused
This pin is pulled-up 2.2 k W resistor to +5V.
Unused
( 1 )
This connector mates with an Amphenol
57-30360 connector.
(19)
– 20 –
Function
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