1 Turn off the power of the printer. - Van Mechelen
1 Turn off the power of the printer. - Van Mechelen
1 Turn off the power of the printer. - Van Mechelen
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7.3.2 Error Detection<br />
Detection <strong>of</strong> parity errors, framing errors, and overrun errors is provided with this<br />
<strong>printer</strong>. When an error is detected, <strong>the</strong> data containing <strong>the</strong> error is stored in <strong>the</strong><br />
buffer as a “”.<br />
(1) Framing error<br />
If a space state is detected at <strong>the</strong> timing <strong>of</strong> stop bit detection, this indicates that<br />
an error has occurred. The data containing <strong>the</strong> error is stored in <strong>the</strong> buffer as a<br />
“”.<br />
(2) Parity error<br />
With parity check specified, when data is parity-checked and an error is detected,<br />
<strong>the</strong> data containing <strong>the</strong> error is stored in <strong>the</strong> buffer as a “”.<br />
(3) Overrun error<br />
If an overrun error is detected, <strong>the</strong> data containing <strong>the</strong> error is stored in <strong>the</strong> buffer<br />
as a “”.<br />
7.3.3 Data Reception Control<br />
With DTR/DSR control selected, when DTR signal becomes “Low”, <strong>the</strong> <strong>printer</strong> can<br />
receive data from <strong>the</strong> host computer, but when it is “High”, <strong>the</strong> <strong>printer</strong> cannot<br />
receive data. With DTR/DSR control not selected, after sending out X-ON, <strong>the</strong><br />
<strong>printer</strong> receives data from <strong>the</strong> host computer, but cannot receive data from <strong>the</strong><br />
host computer after X-OFF is sent out.<br />
7.3.4 Buffering<br />
When data is transferred to <strong>the</strong> input buffer, DTR and TD signals are used as<br />
control signals.<br />
• Refer to 7.3.1 (2) for DTR signal.<br />
• Refer to 7.3.1 (3) for TD signal.<br />
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