CognitiveTPG DLXi - Manual (Page 125)

S T A N D A R D P R I N T E R C O M M A N D S
Wake-up string
Function Switches the printer from idle to active mode in
preparation for incoming data.
Explicit Form CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
C
Parameters None
Comments The 4.25" portable printers use an energy-saving
"sleep mode" to save battery power during periods
of inactivity. These printers won't accept data when
they are asleep.
Code Courier printers go to sleep immediately after
finishing the current task. Pressing the FEED
button will feed a label, after which the printer will
fall asleep again. Therefore, the wake-up string
must precede every label format.
The minimum wake-up string length depends on
the serial port baud rate and printer handshaking.
When using RTS/CTS handshaking, use 40
uppercase C's. When using XON/XOFF
handshaking, use a wake-up string at least as long
as shown in the following table.
Wake-up string length vs. baud rate
Baud Rate
600
1200
2400
4800
9600
14400
19200
38400
57600
String Length
5
10
20
40
80
120
155
310
470
NOTE: Aside from a very small amount of added data
transmission time, the presence of a wake-up string
116 Revision F, January 2012, CognitiveTPG