5.8 Self test and HEX-DUMP mode  
1) Press the power button for approximately 3 seconds to turn off the printer. 
2) While pressing the feed button, press the power button and hold both until the beep sounds.   
3) Printing will commence.   
Print sample 
SELF-TEST 
********************************** 
Printer is as follows 
Firmware Version           Ver.1.16c 
********************************** 
Flash Memory   :  2MByte 
Board Version  :  Newer 
PRINT DENSITY  :  [ 0 ] 
********************************** 
Serial Interface 
 Baud rate     : 115200 
 Data bits     : 8 bits 
 Parity         : none 
 Stop bits     : 1 bit 
 Handshaking   : DTR/DSR 
 Receive error: ignore 
********************************** 
Bluetooth mode : spp + iap 
 LOCAL Name : Mobile Printer 
 BD_ADDR    :00:13:7B:52:D6:F4 
********************************** 
MSR               : Option 
Read Mode        : Auto TRACK1/2 
********************************** 
Emulation        : ESC/POS 
PrintDensity    : Normal 
Characters       : 32 Char/Line 
********************************** 
 
Please press FEED button... 
 
Important note: 
If the FEED button is pressed within 30 seconds, it will print additional ASCII printing patterns. 
Self-test completes automatically after printing ASCII printing patterns. 
Self-test completes automatically if the FEED button is not pressed within 30 seconds. 
 
 
5.9  HEX-DUMP mode  
Within 30 seconds after the printing completes, briefly press the FEED button once more to switch to 
HEX-DUMP print mode.   
If the FEED button is not pressed within 3 seconds, it will switch to standard mode. 
In HEX-DUMP print mode, data received will be printed in HEX format. 
To exit HEX-DUMP print mode, turn off the power.