OCR Programming 12 - 13
OCR Subset
Parameter # F1h AEh
Set an OCR subset to define a custom group of characters in place of a preset font variant. For example, if
scanning only numbers and the letters A, B, and C, create a subset of just these characters to speed decoding.
This applies a designated OCR Subset across all enabled OCR fonts.
To set or modify the OCR font subset, first enable the appropriate OCR font(s). Next, scan the following bar code,
then scan numbers and letters to form the OCR Subset from the alphanumeric keyboard in
. Then scan
End of Message
Chapter 14, Advanced Data Formatting
.
To cancel an OCR subset, for OCR-A or OCR-B, scan OCR-A variant
Full ASCII
, or OCR-B variant
Full ASCII
.
For MICR E13B or US Currency Serial Number, create a subset which includes all allowed characters in that
character set, or scan an option from the
Default Parameters on page 5-4
and re-program the digital scanner.
OCR Quiet Zone
Parameter # F1h B7h
This option sets the OCR quiet zone. The digital scanner stops scanning a field when it detects a sufficiently wide
blank space. The width of this space is defined by the End of Field option. Used with parsers that tolerate slanted
characters, the End of Field count is roughly a count of 8 for a character width. For example if set to 15, then two
character widths are an end of line indicator for the parser. Larger end of field numbers require bigger quiet zones
at each end of text line.
To set a quiet zone, scan the following bar code, then scan a two-digit number using the numeric keypad in
Chapter 14, Advanced Data Formatting
. The range of the quiet zone is 20 - 99 and the default is 50, indicating a six
character width quiet zone.
OCR Subset
OCR Quiet Zone
Summary of Contents for SYMBOL DS3578
Page 1: ...DS3578 with FIPS Digital Scanner Product Reference Guide ...
Page 2: ......
Page 3: ...DS3578 with FIPS Digital Scanner Product Reference Guide 72E 153466 04 Revision A May 2012 ...
Page 42: ...2 10 DS3578 With FIPS Digital Scanner Product Reference Guide ...
Page 80: ...4 30 DS3578 With FIPS Digital Scanner Product Reference Guide ...
Page 132: ...5 52 DS3578 With FIPS Digital Scanner Product Reference Guide ...
Page 197: ...RS 232 Interface 8 23 ...
Page 198: ...8 24 DS3578 With FIPS Digital Scanner Product Reference Guide ...
Page 226: ...9 28 DS3578 With FIPS Digital Scanner Product Reference Guide ...
Page 232: ...10 6 DS3578 With FIPS Digital Scanner Product Reference Guide ...
Page 346: ...14 2 DS3578 With FIPS Digital Scanner Product Reference Guide ...
Page 366: ...B 8 DS3578 With FIPS Digital Scanner Product Reference Guide ...
Page 367: ...Appendix C Sample Bar Codes UPC A UPC E 0 12345 67890 5 0 123456 5 ...
Page 369: ...Sample Bar Codes C 3 Trioptic Code 39 Code 93 Code 11 456123 12345ABCDE Æ1234567890Æ ...
Page 371: ...Sample Bar Codes C 5 PDF417 Data Matrix Maxicode ...
Page 372: ...C 6 DS3578 With FIPS Digital Scanner Product Reference Guide QR Code US Postnet UK Postal ...
Page 373: ...Appendix D Alphanumeric Bar Codes Alphanumeric Keyboard Space ...
Page 374: ...D 2 DS3578 With FIPS Digital Scanner Product Reference Guide Alphanumeric Keyboard continued ...
Page 375: ...Alphanumeric Bar Codes D 3 Alphanumeric Keyboard continued ...
Page 376: ...D 4 DS3578 With FIPS Digital Scanner Product Reference Guide Alphanumeric Keyboard continued ...
Page 377: ...Alphanumeric Bar Codes D 5 Alphanumeric Keyboard continued _ ...
Page 379: ...Alphanumeric Bar Codes D 7 Alphanumeric Keyboard continued 5 6 7 8 9 End of Message Cancel ...
Page 381: ...Alphanumeric Bar Codes D 9 Alphanumeric Keyboard continued G H I J K L ...
Page 383: ...Alphanumeric Bar Codes D 11 Alphanumeric Keyboard continued S T U V W X ...
Page 385: ...Alphanumeric Bar Codes D 13 Alphanumeric Keyboard continued e f g h i j ...
Page 387: ...Alphanumeric Bar Codes D 15 Alphanumeric Keyboard continued q r s t u v ...
Page 389: ...Alphanumeric Bar Codes D 17 Alphanumeric Keyboard continued ...
Page 390: ...D 18 DS3578 With FIPS Digital Scanner Product Reference Guide ...
Page 394: ...E 4 DS3578 With FIPS Digital Scanner Product Reference Guide ...
Page 406: ...F 12 DS3578 With FIPS Digital Scanner Product Reference Guide ...
Page 418: ...Glossary 8 DS3578 With FIPS Digital Scanner Product Reference Guide ...
Page 426: ...Index 8 DS3578 With FIPS Digital Scanner Product Reference Guide ...
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