Zebra CPCL Specifications download pdf (Page 177)

100

101

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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