Page 221 - ZPL II Programming Guide
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ZPL Commands 201
~JO
~JO
Head Test Non-Fatal
Description The ~JO command turns off the head test option. ~JO is the default printhead
test condition and overrides a failure of printhead element status check. This state is changed
when the printer receives a ~JN (Head Test Fatal) command. The printhead test does not
produce an error when ~JO is active.
Format ~JO
9/15/06 ZPL II Programming Guide 45541L-004 Rev. A
