Nope... no maintenance required just replace your consumable items like
blades, blade holders, teflon mats.
Cover the plotter when not in use to protect it from dust reaching your
Y bar and pulleys because the pulleys have these grease that you don't want to turn to gunk. Also when you go home at night leave the rollers UP so that they don't develop flat spots, but there is no maintenance req. on all Graphtec plotters.