Stratasys J850 Manual page 52

If there is a maintenance task due, this is indicated on the main interface
screen.
If this indicator appears, you can display the Maintenance Counters screen by
clicking on it.
For maintenance tasks that are controlled by wizards, the dates and printing
times are reset automatically when the relevant wizard is run and completed
successfully. Manual maintenance tasks (for example, roller inspection and
wiper replacement) are reset by clicking the reset button in the Maintenance
Counters screen.