TROY Group MICR_IRD 3005 Security Printing Solutions User’s Guide - Manual (Page 38)

Section 2 Understanding TROY’s Features
Security Printing Solutions User’s Guide -- 50-70410-002 Rev. A
2-24
Replaceable
Escape Character
Language
Support
Decryption Mode
When writing program code in a Windows environment, it is very difficult for an application programmer to
insert the ASCII escape character (ASCII character 27) into the PCL data stream. The ASCII escape character is
required before each PCL command in the programmer’s command string in order to enable the printer features
described in this user’s guide. Therefore, the replaceable escape character is designed so that the application
programmer can choose another ASCII character (any ASCII character from 0 to 255) to represent the ASCII
escape character in the PCL data stream. When the PCL data stream is sent to the printer, the MICR printer
firmware will automatically replace the alternate ASCII character with the required ASCII character 27 (escape
character).
NOTE: This feature is necessary only in rare cases for compatibility with some mainframe systems. Refer to the
TROY Programmer’s Reference Guide for more information on using this feature.
TROY Security Printing Solutions can be set to accept all types of print jobs (PCL, PostScript, etc.) or can be
limited to PCL 5 print jobs only. If the printer is set to accept PCL 5 print jobs only, then all non-PCL 5 print
jobs will be ignored. This feature can be set using the TROY Printer Utility.
The decryption feature (TROY MICR Secure printers, MICR Secure EX printers, and MICR Secure Memory
Card Kits) can be set to one of two modes: job-by-job (prints all encrypted and non-encrypted jobs) or always
(prints only encrypted PCL 5 jobs – non-encrypted PCL 5 jobs will be purged).