PRINT HEAD MOTOR CONTROL SYSTEM USING ANALOG AND DIGITAL FEEDBACK

摘要

PRINT HEAD MOTOR CONTROL SYSTEM USING ANALOG AND DIGITAL FEEDBACK of the Invention A control system for a bidirectional printer having a print head carriage movable at different speeds on different printing lines employs a microcomputer which generates a desired velocity profile for the carriage motion. This desired velocity profile is continuously compared with the actual velocity and the error voltage generated is used to control pulse width modulator circuitry which supplies driving power to carriage drive motor.