Simplex 2120 - Page 16

The SELECT switch performs another function that could be useful at system checkout. If the printer is off and
you turn it on with the SELECT switch pressed, then the printer will perform a self-test. A sample self-test printout
is shown in Figure 14. To end the self-test, turn the printer off.
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Centronics 150 Self-Test Printout
FIGURE 14
CENTRONICS 150 OPTION SWITCHES
There are two DIP switch locations on the Centronics 150 printer. The parity/forms length DIP switches are located
beneath the control panel (Figure 15). The baud rate DIP switches can only be accessed by removing the printer
cover (Figure 16). Figure 17 illustrates the location of the baud rate DIP switches.
ODD
7 BIT DATA/8 BIT DATA
PARITY/EVEN PARIT
ENABLE PARITY
Location of Parity/Forms Length DIP Switches
FIGURE 15
14
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