Printronix SL5000 - Page 240

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Chapter 3 DIAGNOSTICS
Head On Time
Displays the time that power has been applied to the printhead since the last
Reset Head Data operation. This value is set to zero at the factory after burn-
in testing.
Reset Head Data
Resets all printhead statistics values (Head Prt Dist and Head On Time) to
zero.
Head Type
Displays the printhead type installed in dots per inch (203 dpi or 300 dpi).
Head Voltage
Displays the applied printhead voltage.