Epson LQ-1000 User Manual - Page 129

interface unit is used is HIGH when the printer power is initial

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Table F-2 refers to the relations among ON-LINE, SLCT-IN input, DCl/DC3 and interface signals. Table F-2. Printing enabled/disabled signals and control conditions Notes: 1. In the above table, it is assumed that no ERROR status exists other than that attributable to the OFF-LINE mode. 2. Once the printer is in the deselected state by the DC3 code, the printer will not revert to the selected state unless the DC1 code is input again. In other words, in the deselected status, the input data is ignored until DC1 code is received. 3. DC1 and DC3 codes are enabled only when SW 2-7 is OFF. And SLCT-IN signal (Input Connector Pin No. 36 in case of parallel interface unit is used) is HIGH when the printer power is initialized. 4. SW 2-7 is ON or SLCT-IN is LOW when the printer is initialized, DC1/DC3 printer select/deselect control is invalidated and DC1/ DC3 control code are ignored. 5. The SLCT-IN signal is HIGH and SW 2-7 is OFF when the printer is initialized, the printer will start from selected (DC1) state. F-4

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Table F-2 refers to the relations among ON-LINE, SLCT-IN
input,
DCl/DC3 and interface signals.
Table F-2. Printing enabled/disabled signals and control conditions
Notes:
1.
In the above table, it is assumed that no ERROR status exists other
than that attributable to the OFF-LINE mode.
2. Once the printer is in the deselected state by the DC3 code, the
printer will not revert to the selected state unless the DC1 code is
input again. In other words, in the deselected status, the input data
is ignored until DC1 code is received.
3. DC1 and DC3 codes are enabled only when SW 2-7 is OFF. And
SLCT-IN signal (Input Connector Pin No. 36 in case of parallel
interface unit is used) is HIGH when the printer power is initial-
ized.
4. SW 2-7 is ON or SLCT-IN is LOW when the printer is initialized,
DC1/DC3 printer select/deselect control is invalidated and DC1/
DC3 control code are ignored.
5.
The SLCT-IN signal is HIGH and SW 2-7 is OFF when the printer is
initialized, the printer will start from selected (DC1) state.
F-4