The
~JO
command configures the printer
to run the head test with error reporting enabled. When
~JO
is
used an error will be displayed and printing will stop if the head
test fails. The user can push the PAUSE button on the printer to
bypass the error. This command differs from the
~JN
(Head
Test Fatal) command in that a power cycle is not required in the
event of a head test failure.