The movement of the brew unit during the brewing process can cause some ground coffee to fall around it.
Clean the inside of the coffee machine regularly to prevent mould etc.
Check whether the quantity of coffee is set too high.
Coffee grounds have settled on the lid of the drip tray and in the interior around the brew unit.
Clean the inside of the coffee machine regularly to prevent mould etc.
Check whether the quantity of coffee is set too high.
In the event of large quantities of ground coffee, reset the coffee machine to the factory default settings.