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101
Parallel Interface
8/4/10 GX420d™ / GX430d™ User Guide 980611-001 Rev. C
Parallel Interface
The printer’s parallel interface uses the IEEE 1284-A to 1284-B parallel interface cables. the
host connector has a DB-25 pin male connector. The printer connector is a Centronics style
connector. Early model G-Series printers had DB-25 pin connector on the printer side, as well
as, the host connection side (IEEE 1284-A to A parallel cable).
PRINTER
DB-25
Pin No.
Centronics
Pin No.
DB-25 to Centronics
(Cable)
HOST
STROBE~
DATA 0
DATA 1
DATA 2
DATA 3
DATA 4
DATA 5
DATA 6
DATA 7
ACK~
BUSY
PAPER ERR.
SELECT
AUTOFD~
ERROR~
N/A
N/A
N/A
SIG. GND
SIG. GND
SIG. GND
SIG. GND
SIG. GND
SIG. GND
SIG. GND
STROBE~
DATA 0
DATA 1
DATA 2
DATA 3
DATA 4
DATA 5
DATA 6
DATA 7
ACK~
BUSY
PAPER ERR.
SELECT
AUTOFD~
n/c
SIG. GND
CHAS GND
+5V
SIG. GND
SIG. GND
SIG. GND
SIG. GND
SIG. GND
SIG. GND
SIG. GND
n/c
ERROR~
SIG. GND
SIG. GND
SIG. GND
SIG. GND
SIG. GND
SIG. GND
n/c
n/c
SELECTIN~
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14
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19
20
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23
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25
1
2
3
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5
6
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10
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