Test and Setup Commands
Test and Setup Commands

Test and Setup Commands

The following commands, presented in alphabetical order, are used to test various elements of the printer and its status.
Test and Setup Commands
Command
Function
~HM
(Memory Status)
Sending this command to the printer immediately returns a memory status message to host. Use this command whenever you need to know the status of the memory.
~HS
(Host Status)
Sending this command to the printer immediately returns a three-line printer status message to the host. Use this command whenever you need to know the status of the printer.
~JR
(Power On Reset)
This command resets all of the printer’s internal software, performs a power-on self-test, clears the buffer and DRAM, and resets communication parameters and default values.
~JR
performs the same function as a manual power-on reset.
~JN
(Head Test Fatal)
This command resets the printhead element error override, acting as a toggle for
~JO
. The printer then goes into fault status (turns head indicator on steadily) if any subsequent execution of the printing element test detects bad printing elements. This command is only functional on certain printer platforms.
~JO
(Head Test Non-Fatal)
This command overrides a failure of head element status check and allows printing to continue. The override is canceled when the printer is turned off or receives a
~JR
or
~JN
command. The printhead test will not produce an error if the
~JO
override is active. This command is only functional on certain printer platforms.
^JT
(Head Test Interval)
This command lets you change the printhead test interval from 100 to any desired interval. The printer automatically performs an internal printhead element test, which occurs every 100 labels. This takes place during formatting which minimizes a delay in printing. Therefore, the test may be performed while the printer is in PAUSE. This command is only functional on certain printer platforms.
~WC
(Print Configuration Label)
The ~WC command is used to generate a printer configuration label. The printer configuration label contains information about the printer setup, such as sensor type, network ID, ZPL mode, firmware version, and descriptive data on the R:, E:, B:, and A: devices.
~HQ
(Host Query)
The ~HQ command group causes the printer to send information back to the host.