16EN 1905246 MaintenanceThe dddrop printer is calibrated in order to make a quick start possible. If it however requiresrecalibration or maintenance, an overview is given of the steps involved.Clean the printer externally with a damp cloth. The internals can be cleaned carefully with a vacuumcleaner.WARNINGFailure to incorrectly, inaccurately or incompletely follow the calibration procedure will reduceprint quality.WARNINGLinear guides and the acme threaded rod are greased. Make sure not to contact the grease as itmay work irritating and will stain cloths.WARNINGOnly use the supplied power cable when connecting your printer to the mains. Use a wall socketwith earth pins. Make sure that during maintenance the power supply is switched OFF and thepower cable is disconnected.Make sure that before connecting the power cable to the mains the power switch is switched tothe OFF position (O).The machine contains hot and moving parts. It is strongly advised to only print with cover closed.The machine can be stopped AT ANY TIME in case of an emergency by switching the power OFF ordisconnecting the power cord.