SATO CL408 Operator And Technical Reference Manual page 182

If a CAN (18 hexadecimal) is received by the printer, it will cancel the current print
job and clear all data from the receive buffer.
Status Response
The Bi-Com protocol is an advanced version of bi-directional communications where
the printer can also report the number of labels remaining to be printed for the
current print job. Upon receipt of an ENQ command, the printer responds with nine
bytes of status information bounded by an STX/ETX pair. The Bi-Com protocol
works only in the Multi Job Buffer mode. The status information is defined as follows:
<STX>{ 2 Byte ID}{1 Status Byte}{6 Byte Label Remaining}<ETX>
ID - This 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 on page 5-8).
Label Remaining - Six bytes defining the number of labels remaining in the
current print job. The range is from 000000 to 999999 labels.
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 and six "zero" characters (30 hexadecimal) in
the Remaining Labels bytes.
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.
Upon receipt of a valid print job (<ESC>A . . . <ESC>Z), and ACK (06
hexadecimal) will be returned by the printer if there are no errors and a NAK (16
hexadecimal) if a printer error exists.
SATO CL Series Printers
Section 5. Interface Specifications
9001035 Rev. E Page 5-7