Citizen CL-E720 — условия для сигнала DTR: готовность и занятость [136/154]

Citizen CL-E720 Command Reference DMX онлайн [136/154] 173840
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3 DTR protocol
(a) Conditions for making DTR signal Ready (High)
The following must be required:
Printer is on line.
Receive buffer has more than 1K bytes available.
Note: When receive buffer has less than 128 bytes available,
DTR signal becomes “Busy (Low)” level and this “Busy (Low)
level is kept until receive buffer has at least 1 K bytes
available.
(b) Conditions for making DTR signal BUSY (Low)
Printer is in error.
Receive buffer has less than 128 bytes available.

Содержание

Узнайте, какие условия необходимы для изменения состояния сигнала DTR в принтерах. Подробности о готовности и занятости сигнала DTR.

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