Laser light emitted from a high output laser light source is condensed by a condenser lens to form a condensed point. The motor is connected with a second motor into a modular unit, and the motors are positioned coaxially with respect to each other. The pre-driver circuit includes a step-down transistor and the driver circuit includes a pull-down transistor configured to be coupled to a reference voltage. In this manner, selected ones of the units may be made to print a corresponding portion of an image on an image receiving substrate brought into contact with the printing member. The apparatus is arranged to detect the position of the observer’s pupil and change the position of the incident beam onto the entrance pupil plane of the observing eye, based on the result of the detection. The second member may be a portion of a nozzle adapted to abut the contact tip to urge the contact tip toward the surface of the first member.