Hand Held Products IMAGETEAM 4400, Руководство пользователя

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Creating a User-Defined Variable
You can create up to two of your own user variables for an OCR template. These
variables will represent any OCR readable characters. The user-defined
variables are stored under the letters “g” and “h.” Creating a user variable follows
the same steps as creating a template, but instead of scanning the Enter OCR
Template symbol, you scan the Enter User-Defined Variable symbol (page 4-
7). The letters g and h can then be used in an OCR template to define the
variable you specified.
Example E: You need a variable to represent the letters “A,” “B,” or “C.” The
template for this variable:
414243
To create this template, you would scan the Enter User-Defined Variable
“g” symbol (page 4-7). Scan 414243 from the inside back cover (the hex
characters for “A,” “B,” and “C”). Scan Save OCR Template (page 4-8). This
will let you read either A or B or C in any position where you place the g. For
example, you could create the following template:
ddddddggg
This template would then let you read data that began with 6 digits, and had
an A, B, or C trailing. So you would be able to read:
654321ABC
or
654321BAC
or
654321CCC
Adding an OCR Check Character
You may want to program the scanner to read OCR strings that have a check
character. The IT4400/4700 reads and strips out the OCR check character
created using a modulo 10 or modulo 36 table. (Modulo 10 being digits 0-9,
modulo 36 being digits 0-9 and characters A-Z.)
Scan the Modulo 10 or Modulo 36 Check Character bar code to specify the
type of check character used in the OCR strings you’re scanning. The scanner
will then only read OCR character strings with a valid check character. The
IT4400/4700 transmits the OCR data without the check character data. You
must specify the location of the check character in the template with a c.