Unisys EFP9800 manual Example

MICR Commands and Parsing

The three high order bits of each byte mark the character type. The characters can be marked in three ways: check serial # character, account # character, or “skip this character or symbol.” The five low order bits of each byte contain the number of characters of that type to extract. Most exceptions will not need to use all six bytes; in that case clear the unused bytes to zero.

Bits within Byte

check serial # character string

account # character string

character string to ignore

7

0

0

1

6

0

1

0

5

1

0

0

4

n

n

n

3

n

n

n

2

n

n

n

1

n

n

n

0

n

n

n

Example 1

t123456780t12349876543210o 1234 is the check serial # 9876543210 is the account #

To load the second table entry, which starts at word 25, the transit number 123456780 would be stored in the first two words of its table entry using this string of commands:

0x1B 0x73 0x12 0x34 25 0x1B 0x73 0x56 0x78 26

After the right transit symbol are immediately the four characters of the check serial #, followed immediately by the ten characters of the account number. These would be bitwise encoded as:

0 0 1 0 0 1 0 0 (check #, four characters) and 0 1 0 0 1 0 1 0 (account #, 10 characters)

then stored in the other three words of the table entry using:

0x1B 0x73 0x24 0x4A 27 0x1B 0x73 0x00 0x00 28 0x1B 0x73 0x00 0x00 29

11–12 3255 4073–002