FENIX IMVICO
TK-41 OPERATION MANUAL
49/88
3.5.8- SERIAL PORT ERROR DETECTION FLOW CHART
Fig.3.12-
Serial port error detection flow chart.
END
START
TIMER
SEND
1 BYTE
SEND “Real-time status“
COMMAND WITHOUT
CHECKING /RTS SIGNAL
READ “STATUS” FROM
PRINTER AND IDENTIFY
ERROR
BEGIN
NO
/DTR = 0
YES
/RTS = 0
NO
YES
END OF
TRANDMISSION
NO
YES
TIMER OUT
NO
YES
When a time-out is
detected that means
there is an ERROR
