HP Metal Jet S100 User Manual page 63

Each of the headings has a drop-down list that allows you to see which tasks need to be performed,
which are grouped together in periods (after every job, daily, weekly, and so on), along with individual
tasks to be performed when required (replace printhead, empty solvent tank, and so on).
Tasks grouped together also have a drop-down list that allows you to see which tasks need to be
performed.
Check for alerts at the maintenance app 59