MICR Printer Security Features: Safeguarding Your Financial Documents

Author: Source Technologies

In an era of increasing digital threats, the security of financial documents is of paramount importance. Secure MICR printers play a vital role in printing and encoding checks, ensuring their authenticity, and preventing fraud. This article explores the various security features offered by our MICR printers to safeguard your financial documents. From specialized fonts to encryption and auditing capabilities, these features provide an additional layer of protection against potential risks. 

E13BFont: The Standard for MICR Documents 

The E13BFont is a widely accepted MICR font that originated in the United States in the 1950s. Designed to meet the ASC X9B/US specification, this font is used for printing MICR-encoded documents in multiple countries, including the US, Canada, Mexico, and the Far East. Its adherence to industry standards ensures efficient processing of checks through the system, minimizing the risk of errors. 

CMC7Font: The European Alternative 

Developed in France during the 1960s, the CMC7Font serves as an alternative MICR font for printing MICR-encoded documents. Widely adopted in Europe and La􀀁n American countries, this font consists of 15 numeric characters and complies with the international standards set by ISO 1004. Its usage ensures compatibility and uniformity in MICR documents across regions. 

Secure Numeric Font: Uncompromising Security 

To enhance document security, secure MICR printers often incorporate a unique font known as the Secure Numeric Font. This font employs a special background and very small text and numeric print embedded in the amount line of the check. These features make alterations difficult, providing an additional layer of security at the document level and minimizing the risk of fraud. 

Microprint Font: Concealed Security 

The Microprint Font is an extremely small-type font that allows for the embedding of micro text and numbers within lines of print on MICR documents. Denoted by the letters "MP," this font further fortifies the document against tampering and counterfeiting. By adding concealed security elements, the Microprint Font mitigates the risk of fraud and ensures the integrity of the printed content. 

ICR Numeric Font: Secure Imaging Technology 

Secure MICR printers often incorporate the ICR Numeric Font, which is specifically designed to be read by imaging equipment used by financial institutions. This font enhances security by providing an image-readable format that reduces the risk of errors and fraudulent activities. By ensuring the compatibility between printing and imaging technologies, the ICR Numeric Font minimizes the potential for document-related issues. 

Front Security Panel Lock: An Extra Layer of Protection 

To establish an additional level of security, some secure MICR printers feature a front security panel lock. This lock requires users to enter an 8-digit combination before initiating the printing process. By restricting access to authorized personnel only, this security measure prevents unauthorized printing and protects sensitive financial information. 

Set Copies to One (1): Preventing Duplicate Documents 

A key security feature in MICR printers is the ability to set the number of copies to one. By enabling the "Set Copies to One" function in PCL settings, the printer ensures that each document is printed only once. This prevents the fraudulent production of multiple copies, safeguarding the integrity of the document and minimizing the risk of unauthorized duplication. 

Auto Jam Recovery Disable: Preventing Duplicate Check Prints 

To prevent the printing of multiple copies of a check, MICR printers often come equipped with an "Auto Jam Recovery Disable" feature. This feature automatically disables jam recovery when checks are being printed, ensuring that only one copy of each check is produced. By eliminating the possibility of accidental duplicate prints, this security measure reduces the risk of fraudulent activities. 

Password Protection: Safeguarding Print Resources 

To restrict unauthorized access to sensitive print resources, such as stored signatures, MICR fonts, and form overlays, MICR printers employ password protection mechanisms. Only users with the correct password can access these resources, preventing unauthorized modifications or misuse. Password protection enhances the overall security of MICR and secure fonts, as well as user-specific signatures and form overlays. 

MICRToner Detection: Ensuring MICR Compatibility 

Secure MICR printers are equipped with MICRToner detection capabilities to ensure the correct toner is installed. This feature detects whether MICR toner or regular toner is being used, preventing the printing of MICR documents with regular toner. By avoiding the use of incompatible toners, which can result in costly bank rejects, MICRToner detection promotes accuracy and reduces the risk of errors. 

Toner Low Warnings: Maintaining Quality MICR Printing 

To prevent the printing of checks with low-quality MICR toner, MICR printers utilize toner low warnings. These warnings alert users when the MICR toner level is low, allowing timely replenishment to ensure the quality of MICR printing. By avoiding the use of depleted toner, these warnings help prevent check rejects, maintain document integrity, and uphold the standards required by financial institutions. 

AES & DES Encryption/Decryption: Securing Data Transmission 

MICR printers employ advanced encryption and decryption techniques such as AES (Advanced 
Encryption Standard) and DES (Data Encryption Standard) to protect the print data stream. These encryption algorithms ensure that the data is securely transmitted to the printer and decrypted prior to printing. By utilizing high-level security measures, MICR printers safeguard sensitive information from unauthorized access and potential breaches. 

Audit Trail: Tracking Check Printing Activity 

To facilitate auditing and compliance requirements, secure MICR printers offer an audit trail feature. This feature allows users to generate user-defined reports of check printing activity, providing a written record for auditing purposes. By tracking and documenting check printing activities, the audit trail feature enhances accountability, transparency, and the ability to identify potential security breaches. 

3-Year MICR Guarantee to ANSI/ABA Standards: Ensuring Quality and Compliance 

Source Technologies, the leading provider of Secure MICR printers, offers a 3-year MICR guarantee to ANSI/ABA (American National Standards Institute/American Bankers Association) standards. This guarantee ensures the readability and performance of their MICR printers. By adhering to industry standards, Source Technologies ensures the quality and compliance of printed negotiable instruments, providing peace of mind to financial institutions and businesses. 

Auto Density Control for Toner: Consistent Print Quality 

To maintain consistent print quality throughout the lifespan of the toner cartridge, secure MICR printers employ auto-density control. This feature ensures the signal strength of the printed characters adheres to the required standards standards as the cartridge is emptied. As the MICR toner in a cartridge becomes lower the density of the MICR data can become week resulting in a signal strength that falls below ANSI specifications. By regulating the density of the toner, MICR printers minimize the risk of errors, maximize toner adherence, and enhance the overall quality of printed MICR documents. 

Originally Manufactured MICR Toner Cartridge: Reliability and Performance 

When it comes to MICR toner cartridges, reliability is paramount. MICR printers often use originally manufactured MICR toner cartridges that undergo rigorous testing and quality control. By avoiding "refilled" or "remanufactured" cartridges that may introduce potential problems, such as damage to the printer  or poor signal strengths and adhesion to paper , these cartridges ensure optimal performance, longevity, and the consistent quality of printed MICR documents. 

Regulated Fuser Temperature for Optimum Performance: Preventing Toner Lift-Off 

MICR printers employ regulated fuser temperature settings to match the characteristics of MICR toner and check stock paper weights. This ensures optimal toner adherence and minimizes the risk of toner lift-off during the fusing process. By maintaining the appropriate fuser temperature, MICR printers enhance document quality, reduce the vulnerability to fraud, and promote the reliable performance of printed MICR documents. This helps prevent check whitewashing by creating a stronger bond between the toner and paper when acetone is used. We just need to expand beyond lift-off.

Tray Locking: Protecting Check Stock 

To safeguard check stock and prevent unauthorized access, MICR printers often feature tray locking mechanisms. These locks secure the printer and expansion drawers, limiting access to authorized personnel only. By keeping check stock safe and preventing check paper waste, tray-locking mechanisms minimize the risk of fraud and ensure the efficient utilization of resources. 

MICRpoint: Fine-Tuning MICR Line Position 

MICRpoint is a feature found in secure MICR printers that allows for fine-tuning the position of the MICR line. This feature accounts for minor variations between printers, ensuring precise alignment and reducing the likelihood of bank rejection due to misaligned MICR lines. With the ability to fine-tune the position, MICRpoint enhances the accuracy and reliability of printed MICR documents. 

Datastream Tray Protection: Preventing Misuse of Check Stock 

To prevent the misuse of check stock, MICR printers incorporate datastream tray protection 
functionality. This feature limits non-MICR jobs from being printed from specified trays, preventing regular office documents from being mistakenly printed on check stock. By reducing the likelihood of misprints and the cost of replacing misused check stock, datastream tray protection enhances efficiency, accuracy, and cost-effectiveness in check printing. 


In the realm of financial document security, secure MICR printers offer a wide array of features to protect against fraud and ensure the integrity of financial instruments. From specialized MICR fonts to encryption and auditing capabilities, these security features provide peace of mind to financial institutions and businesses. By adopting secure MICR printers equipped with these advanced security features, organizations can confidently print and process checks, mitigating the risk of fraudulent activities while promoting secure financial transactions.