User manual
30DCA Intertel DCA Intertel
DCA Intertel 31 DCA Intertel
An ACK response is returned in the event the entire protocol was interpreted
correctly and the check sum calculated is the same as that received by the
host.
A NACK response is returned in the event of transmission errors that cause
a discrepancy between the calculated and received check sums.
A BUSY response is returned in the event the printer does not have sufcient
memory to store the transmitted data. If this response is returned, use
the STS byte to nd the cause that generated the BUSY condition. If there
are no errors (no paper, head overheating or incorrect electrical voltage), the
BUSY message has been generated because the buffer is full and it is necessary
to wait for the buffer to empty; then change the IDJOB eld and repeat
the transmission.