User's Manual
Table Of Contents
- IBM Interface
- Wand Emulation Interface
- Scanner Emulation Interface
- 123Scan2
- OCR Programming
- Introduction
- OCR Parameter Defaults
- OCR Programming Parameters
- Enable/Disable OCR-A
- OCR-A Variant
- Enable/Disable OCR-B
- OCR-B Variant
- Enable/Disable MICR E13B
- Enable/Disable US Currency Serial Number
- OCR Orientation
- OCR Lines
- OCR Minimum Characters
- OCR Maximum Characters
- OCR Security Level
- OCR Subset
- OCR Quiet Zone
- OCR Bright Illumination
- OCR Template
- OCR Check Digit Modulus
- OCR Check Digit Multiplier
- OCR Check Digit Validation
- Symbologies
- Introduction
- Scanning Sequence Examples
- Errors While Scanning
- Symbology Parameter Defaults
- UPC/EAN
- Enable/Disable UPC-A
- Enable/Disable UPC-E
- Enable/Disable UPC-E1
- Enable/Disable EAN-8/JAN-8
- Enable/Disable EAN-13/JAN-13
- Enable/Disable Bookland EAN
- Decode UPC/EAN/JAN Supplementals
- User-Programmable Supplementals
- UPC/EAN/JAN Supplemental Redundancy
- UPC/EAN/JAN Supplemental AIM ID Format
- Transmit UPC-A Check Digit
- Transmit UPC-E Check Digit
- Transmit UPC-E1 Check Digit
- UPC-A Preamble
- UPC-E Preamble
- UPC-E1 Preamble
- Convert UPC-E to UPC-A
- Convert UPC-E1 to UPC-A
- EAN-8/JAN-8 Extend
- Bookland ISBN Format
- UCC Coupon Extended Code
- ISSN EAN
- Code 128
- Code 39
- Code 93
- Code 11
- Interleaved 2 of 5 (ITF)
- Discrete 2 of 5 (DTF)
- Codabar (NW - 7)
- MSI
- Chinese 2 of 5
- Matrix 2 of 5
- Korean 3 of 5
- Inverse 1D
- Postal Codes
- GS1 DataBar
- Composite
- 2D Symbologies
- Redundancy Level
- Security Level
- Report Version
- Macro PDF Features
- Advanced Data Formatting
13 - 30 Symbol DS6878 Product Reference Guide
Product Add Right to Left Simple Remainder
Each character in the scanned data is assigned a numeric value (see OCR Check Digit Multiplier on page 13-26).
The check digit multiplier is reversed in order. Each value representing a character in the scanned data is multiplied
by its corresponding digit in the reversed multiplier, resulting in a product for each character in the scanned data.
The sum of these products
except for the check digit's product is computed. The check digit passes if this sum
modulo Check Digit Modulus is equal to the check digit's product.
Example:
Scanned data numeric value is 122456 (check digit is 6)
Check digit multiplier string is 123456
Digit 1 2 2 4 5 6
Multiplier 6 5 4 3 2 1
Product 6 10 8 12 10 6
Product add 6+ 10+ 8+ 12+ 10= 46 6
The Check Digit Modulus is 10. It passes because 46 divided by 10 leaves a remainder of 6.
Product Add Right to Left Simple Remainder
(05h)