摘要:
In an electrophotographic apparatus, densities of toner images of a light reference mark and a dark reference mark are detected by a density sensor (112), and input voltages such as an illumination power source voltage and an electrostatic charge voltage are varied by small values on the basis of a difference between detected densities and an aimed density, the small values are determined on the basis of a predetermined qualitative model. Subsequently, a line width of the toner image of a reference mark having a striped pattern is detected by a line width sensor (128) and a developer bias voltage is varied by a small value in a similar manner as mentioned above.
摘要:
A constant speed travel control apparatus for use in a vehicle, wherein using time delay control which is a kind of adaptive control for estimating an unknown term, a plurality of targeted paths, having a certain waveform, for the actual speed of the vehicle to converge on the target speed are provided and an error vector is defined on the basis of the paths, whereby the actual speed of the vehicle can converge on the target speed thereof with a constant convergence performance along the path in spite of the fluctuation of vehicle dynamic characteristic.
摘要:
In an electrophotographic apparatus, densities of toner images of a light reference mark and a dark reference mark are detected by a density sensor (112), and input voltages such as an illumination power source voltage and an electrostatic charge voltage are varied by small values on the basis of a difference between detected densities and an aimed density, the small values are determined on the basis of a predetermined qualitative model. Subsequently, a line width of the toner image of a reference mark having a striped pattern is detected by a line width sensor (128) and a developer bias voltage is varied by a small value in a similar manner as mentioned above.