
Source Technologies, LLC                                                             ST9630 Secure MICR Printer User’s Guide  
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Load Flash Resource   &%STLxxxxxyyyyyyzdd....dd 
&%STL  Lead in sequence 
xxxxx  Resource number in decimal, must be 5 digits 
yyyyyy  Byte count of resource file in Hex, must be 6  positions 
z  Format of the resource file 
      S = Single byte binary format 
      D = Double byte text format 
dd...dd  Flash resource file. e.g.  forms overlay, signatures etc. 
Resource number values may be between 00001 to 32767. Values of 10000 and above 
are password protected and will require the user to enter MICR mode with a valid 
password before they can be unlocked with the STP command. Values below 10000 will 
be unsecured.   
Resource number 5001 is reserved for the Audit Trail overlay. Please see chapter 7 for 
more information. 
Format Flash Memory  &%SFF$ 
&%SFF  Lead in sequence 
$  Command terminator 
This command formats flash memory. A valid password command must precede this 
command. 
Caution:  All flash contents will be lost. This includes all electronic forms, 
signatures, logos, etc.  
Secure Flash Resource Unlock Command     &%STPxxxxx$ 
&%STP  Unlock flash resource command 
xxxxx  Flash resource number, must be 5 digits 
$  Command terminator 
Unlocks a secure flash resource.   
Tray Lock Command  &%STTL#$ 
&%STTL  Lock tray command 
#  The tray to be locked (choose from 1, 2 or 3 only) 
$  Command terminator 
This command prevents other applications from accessing a particular printer paper tray.  
Tray Unlock Command   &%STTU#$ 
MICR Features  |  6