ZPL commands
~HQ · Host Query
Queries specific information from the printer and sends it back to the host.
Queries specific information from the printer and sends it back to the host.
Parameters
~HQa- a: Query type: ES = error status, HA = MAC address, JT = printhead test results, MA = maintenance alert settings, MI = maintenance information, OD = odometer, PH = printhead life history, PP = plug and play string, SN = serial number, UI = USB product ID
Example
~HQES
Tip
~HQSN returns the serial number, ~HQOD the odometer - the answer only comes back over a bidirectional connection.