Interfaces
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7.2 Centronics parallel interface
The parallel interface is a 36-pin Centronics socket with the following pin assignments:
Pin Direction Definition Pin Direction Definition
1 In /STROBE 13 Out SELECT
2 In Data 1 14,15 NC
3 In Data 2 16 - Ground
4 In Data 3 17 - Ground
5 In Data 4 18 NC
6 In Data 5 19~30 - Ground
7 In Data 6 31 NC
8 In Data 7 32 Out /Fault
9 In Data 8 33~36 - NC
10 Out /ACK
11 Out BUSY
12 Out PE
Table 6 Pin assignments for Centronics parallel interface
Each communication port can receive data from a host (Centronics, RS232, Ethernet or USB). You do not
need to select the port because the printer automatically detects which interface is active.
Never send data to more than one interface simultaneously.
This will cause the data to be incorrectly processed and printed.
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