Em – enable micrimage command, Blk – block command, Unblk – unblock command – MagTek MICRImage User Manual
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Section 3. General Operational Commands
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EM – ENABLE MICRIMAGE COMMAND
This command enables the document reading function, and the LED will turn green. To execute, send the
EM command followed by a carriage return as follows:
EM<CR>
One of the following optional parameters may be used:
N
Suppresses MICR for next scan regardless of SWF. Afterwards, revert to
SWF.
M
Detect MICR for next scan regardless of SWF. Afterwards, revert to SWF.
Example: EMN<CR>
BLK – BLOCK COMMAND
The BLK Command allows an application on any port to temporarily block command processing on all
other ports for a set period of time, by default 10 seconds, or until the UNBLK command is sent.
Optionally the duration (in seconds) can be specified as ‘BLK n’ where n can range from 0 to 65. Setting
the duration to 0 will allow blocking with no timeouts.
BLK<CR>
10-second timeout
BLK 15<CR>
15-second timeout
UNBLK – UNBLOCK COMMAND
The UNBLK command allows the MICRImage to continue processing input from all available ports.
UNBLK<CR>