Device for adjusting image density in composite information recording apparatus

Claim 1

In a composite information recording apparatus including a photoconductive medium on which an electrostatic latent image is formable in accordance with a copying and/or a recording operation, a developing device having a developing electrode for developing the latent image on the photoconductive medium, means for supplying a bias voltage applied between the developing electrode and the photoconductive medium, and a signal reproducing device for use in the recording operation; an image density adjusting device, comprising: switch means operable for selectively adjusting the bias voltage applied to the developing electrode in accordance with the density of an original to be copied; means supplying a variable voltage to said signal reproducing device; and further means operable by said switch means for controlling said variable voltage supply means to apply a variable voltage to said signal reproducing device in correspondence with the selectively adjusted bias voltage applied to the developing electrode, whereby image density of the recording operation is controlled in accordance with image density control of the copying operation.