Unisys manual EFP9800 ESC/POS Commands

EFP9800 ESC/POS Commands

If any of the status items listed above are selected, ASB is enabled and the printer automatically transmits 4 status bytes whenever the selected status changes. If no status is selected, ASB is disabled.

In RS-232C communications, all four status bytes are transmitted without checking DSR. The four bytes must be consecutive, except for XOFF code.

Because status is transmitted when this command is buffered, there may be a lag between command reception and status transmission, depending on the receive buffer state.

Note: When this command is enabled, the status transmitted by ASB and by the Real Time Status Transmission, Transmit Peripheral Device Status, Transmit Paper Sensor Status, Transmit Printer ID, and Transmit Status commands must be distinguished.

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