To determine the gas work WK from the areas formed by the cylinder pressure curve over the associated stroke volume V\u03b1, a cylinder-pressure-proportional integrator is started integrating the signals of the cylinder pressure sensor in multiple integrator runs depending on a settable integrator capacitance. By doing so, the rotation angle of the rotating body is calculated. The method may be adapted to perform with a multi-antenna receiver and with multi-carrier systems. The nozzle plate and the heater substrate are bonded by using the intermediate layer made of the thin film of glass instead of a general polymer as the bonding layer, thereby preventing swelling of the polymer and isolation of layers of the head occurring due to ink penetration into interfaces of the layers. An auxiliary wheel support spring continually urges the auxiliary wheel support bracket in a first direction about the axis of the support shaft so that the stop on the auxiliary wheel support bracket engages a stop element integral with the drive pin.