Source Technologies ST9530 사용자 설명서

Secure MICR Printer User’s Guide 

 

 

© Source Technologies 

September 2005 

25

 

 

All Rights Reserved 

bytes are 0 through 9, A through F.  Alpha key characters can be upper or lower case.  
Command characters must be upper case.  An example of a valid key command - 
&%STSETDESKEY5f00FF7E3DA938eb$  The key value remains in the printer until 
another key command is received.  Printer power cycles and printer reset commands do 
not affect the key value. 
 
The dollar sign ($) is the command terminator and is required. 
 
Set AES Decryption Key Command 

<32 Hex Characters>$ 

 
The command also requires a MICR Password Command be sent prior to the Key 
Command. 
The key data is similar to DES, but is twice in length with 32 Hex character format 
representing the 16 byte or 128-bit key value. 
   
Turn DES Decryption ON  

 
All data following the $ command terminator will be decrypted using the current key value 
stored in the printer and the DES or AES algorithm. Decryption continues until a Decryption 
OFF command is received, a printer panel reset occurs, or printer power is cycled.  Printer 
software language resets do not stop decryption. 
 
Turn DES Decryption OFF  

 
The OFF command resides within the encrypted data, and must also be encrypted.  The 
OFF occurs after an 8-byte block (DES) or 16-byte block (AES) is received and decrypted.  
The last block containing the OFF should either have the command right justified or padded 
out to the block boundary.  Any padding bytes after the $ command terminator will be 
discarded.   
 
MFP Copy Defeat Commands 
 
A Secure MICR printer with the Multi Function Printer (MFP) feature can scan and copy 
documents.  This allows the end users to copy MICR documents with MICR toner.  The 
Copy Defeat command will block the copy function when a MICR toner cartridge is 
installed, but allow the copy function with standard toner. 
 
MFP MICR Copy Defeat ON