Surface cleaning machine and method for operating a surface cleaning machine

A surface-cleaning machine, comprising:

• an appliance body on which a suction apparatus device is arranged;
• a cleaning head on which at least one cleaning roller is arranged and on which there is positioned at least one suction mouth, which is fluidically connected to the suction apparatus device and is associated with the at least one cleaning roller;
• and
• a drive device for driving the at least one cleaning roller in rotation;
• wherein a drive axis of a drive motor of the drive device and an axis of rotation of the at least one cleaning roller are oriented transversely with respect to one another;
• and
• wherein, during a cleaning operation, the surface-cleaning machine is supported on a surface for cleaning only by way of the at least one cleaning roller.