SATO M84PRO service manual Stream Identification, Cancel can

Section 3: Interface Specifications

Optional Interface, pin 6 (DTR) and pin 5 (CTS) must be held high by the host. One way to ensure these pins are always in the correct state is to tie pin 20 (DTR) to pin 6 (DSR) and pin 4 (RTS) to pin 5 (CTS) at the printer end of the cable.

ENQUIRE (ENQ)

Upon receipt of an ENQ command, the printer responds with 25 bytes of status information bounded by an STX/ETX pair. The Bi-Com protocol works only in the multiple job buffer mode. The status information is defined as follows:

<STX>{ 2 Byte ID}{1 Status Byte}{6 Byte Label Remaining}{16 Byte Job Name}<ETX>

	STREAM IDENTIFICATION
ID		Is a two byte number identifying the current print job ID. The
		print job ID is defined using the <ESC>ID Job ID command
		transmitted with the print job (see Job ID Store in the
		command listing for more information on how to use this
		command). The range is from 00 to 99.
Status		A single byte defining the current status of the printer (see the
		Status Byte Definition table).
Label Remaining		Six bytes defining the number of labels remaining in the current
		print job. The range is from 000000 to 999999 labels.
Job Name		16 bytes of ASCII characters identifying the name assigned
		to the job by the <ESC>WK Job Name command. If the Job
		Name is less than 16 characters, the field will be padded
		with leading zeroes.
		If an ENQ is received after the print job specified in the ID
		bytes has been completed, or there is no data in the buffer,
		the printer will respond with two “space” characters (20
		hexadecimal) for the ID number, six “zero” characters (30
		hexadecimal) in the Remaining Labels bytes and the 16
		byte Job Name.

CANCEL (CAN)

If a CAN (18 hexadecimal) command is received, it will stop the print job and clear all data from the receive and print buffers. A delay of five milliseconds or more is required before any new data can be downloaded. The CAN command is effective immediately upon receipt, even if the printer is off-line or in an error condition. The printer will return an ACK (06 hexadecimal) if there is no printer error condition and a NAK (15 hexadecimal) if an error condition exists.

PRINT JOB

Upon receipt of a valid print job (<ESC>A . . . <ESC>Z), an ACK (06 hexadecimal) will be returned by the printer if there are no errors and a NAK (16 hexadecimal) if a printer error exists.

M84Pro Service Manual PN: 9001113A Page 3-7