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Mobile Printing Systems
CPCL Programming Manual
Section 10
Advanced
Utilities
pg. 10-28
continued
MCR-QUERY Command
The MCR can be put in a query mode by specifying the “QUERY” option in the MCR command, where
it will report MCR data only when it is asked to via the MCR-QUERY command. By default, the printer will
report card swipe data immediately after a successful read.
The printer will not respond to MCR-QUERY if it does not have any data, either the track data or an error
message. Multiple MCR-QUERY commands may be issued, keeping in mind that the response, or lack
thereof, to the MCR-QUERY reflects the card swipe data at the moment MCR-QUERY is issued.
Format:
{command}
Where:
{command}: MCR-QUERY
MCR-QUERY Command Example:
In this example the printer is instructed to report the MCR read operation results.
! U1 MCR-QUERY
MCR-CAN Command
The MCR-CAN command will terminate the current MCR activity, and if error message reporting is
enabled via the MCR command ERROR option, will transmit the “Cancel” error message to host.
Format:
{command}
Where:
{command}: MCR-CAN
MCR-CAN Command Example:
In this example the printer is instructed to deactivate the printer MCR and cancel any pending read
operations.
! U1 MCR-CAN
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