Consecutive numbering changes sequentially from one document to the next.

It can be used as a control feature to provide a distinct identity to each document.

The standard numbering color is red, but other colors are available. Consult your supplier for their color list.

Several digit sizes are available for consecutive numbering and some manufacturers of printed products may offer more than one size.

Alphabetic characters can also be included in the number.

As shown in the illustration below, a consecutive number can be printed in almost any location on a document. The number can be printed parallel or perpendicular to the rest of the copy on the document and multiple numbers can also be printed. It is best to consult with your print supplier for their capabilities as this may differ between suppliers.

MICR Numbering

MICR (Magnetic Image Character Recognition) is a special encoded number used on checks and other secure documents that enable the document to be read by MICR scanning equipment.

It is printed using a MICR character font as shown above.

Special magnetic ink is used to print the characters, making the MICR encoding recognizable by the scanner.

MICR numbering serves as a unique user address containing all of the information necessary for financial institutions to identify the check number, the financial institution where the account is maintained, and the account number assigned to the customer by the financial institution. The amount of the check can also be added to the end of the MICR field if the issuer has that capability.

The MICR encoding may consist of either a static number or a static and consecutive number. The static number contains the individual account number and the routing number of the financial organization. Consecutive MICR encoding, when added to the static number, is used to accurately sort the paper documents into a proper numerical sequence from high to low or low to high.

To see a sample document with consecutive numbering and MICR encoding, click the following link: Numbering Sample

Bar Code Numbering

Bar code numbering is used on many types of applications to code and decode information automatically.

It consists of bars and spaces of various sizes as shown in the sample above.

The bar codes can be static (the same number on each piece) or consecutive (sequential from piece to piece).

A number of different types of bar codes have been developed to meet the special needs of different industries. The different bar code types are known as symbologies.

The scanned information is received without the input errors that can occur with the use of traditional methods of entering data. Bar coding is a much more reliable, faster, and efficient method of gathering information.

For more information on bar coding, click on the link: Bar Coding

MOD Numbering

MOD (Modulus) or check digit numbering involves printing an additional digit to the right of a base sequential number (as indicated by the black digit in the numbers shown above). This enables the document owner to verify and control some aspect of the document; it’s contents, or the intended end-user of the document. Numbering methods, such as MICR, Gothic, OCR, or Bar Code, can be to be used.


To save on the costs of manually entering data into a computer system

Assurance of reliability in numeric data

Increased security in keeping individuals or entities from receiving the wrong materials


1.  Claim Forms: Insurance policies to improve administration and data entry accuracy.

2.  Control Forms:

Patient files insuring confidentiality or proper medication issuance

Inventory records

Freight waybills assuring destination and billing accuracy

Airline tickets issued to control the flight data for baggage and passengers

3.  Financial Forms:

Bank accounts to insure proper debits or credits

Travelers checks to secure proper credit and check issuance

4.  Order Forms or Sales Contracts: Agreements requiring proper identification of the end user or receiver of services and products.

5. Credit Card Forms: Security for financial transactions.

How MOD Numbering Works

MOD numbering is considered to be a “self-checking system” consisting of two parts: the base control number, or digits, such as a Gothic number 6525 with a Gothic check digit such as 3 added after the base number for a total numbering sequence appearing as 65253. Verification of the proper sequence of the check digit can be accomplished manually or by using a computer programmed for the verification procedure.

MOD numbering uses a pre-determined interval of individual digits different from the standard base 10 system. There is an unlimited number of modulus numbering systems or configurations that could be devised by any person selecting a suggested MOD numbering configuration. Two standard processes are used for MOD numbering which result in different series of control numbers being configured:

Divide Remainder Series (DR): Divide each base number on the document by a designated number (MOD 7 would use 7, MOD 9 would use 9, etc.) and the remainder is then used as the last digit following the base number.

Divide-Subtract Remainder Series (DSR): Divide each base number on the document by a designated number, (MOD 7 would use 7, MOD 9 would use 9, etc.) and the remainder is then subtracted from the divisor number (7 or 9, etc.) and the resulting number then becomes the last digit following the base number.

The most common Modulus numbering configurations used today are MOD 7, MOD 9, MOD 10, and MOD 11. MOD 7 and MOD 9 “unweighted” modulus numbering are most often used to provide a check digit, which is easiest to verify and the simplest with which to work. MOD 10 and MOD 11 “weighted” modulus numbering not only provides a more complex control number, but also provides the potential for a more secure system.

Unweighted Modulus Numbering

Simple mathematical calculations are used to add a continually changing last digit to a base control number for purposes of systematically applying a distinct numerical identity to a document.

Mechanical numbering machines used on a press or on bindery equipment can be used to apply sequenced unweighted MOD numbering configurations, since the numbering sequence can be accomplished mechanically without complex calculations.

Examples of unweighted MOD numbering sequences and calculations are shown below:

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