SATO CL608 - Page 58

PN 9001024
Rev. B Jan. 2000
Page 3-9
SATO CL608 & CL612 SERVICE MANUAL
SECTION 3 – Interface Specifications
Bi-Directional Communications (Cont.)
Status Response
The Bi-Directional 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-Directional 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).
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 milleseconds 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.
3-4 RS232C Serial Interface (Cont.)