SCANTECH ID (Champtek company) Discovery SG-20 - Manual (Page 85)

Scantech-ID Discovery SG-20 77
Example 6
Show the text 'Hello World' permanently when the Discovery is idle.
COMMAND or data string COMMENT
<ESC> 0x25 Clear the screen
<ESC> 0x27 0x30 0x33 Set cursor to 0,3
"Hello World" Print text
<ESC> 0x26 0x31 Give the 'Lock screen' command
Example 7
Show Image #5 permanently when the Discovery is idle.
COMMAND COMMENT
<ESC> 0x26 0x32 0x35 Lock screen using bitmap #5
Example 8
How to create this screen with icons:
COMMAND or data string COMMENT
<ESC> 0x25 Clear the screen
<ESC> 0x3b 0x31 Show icon 1 *1
<ESC> 0x3b 0x32 Show icon 2 *1