Document-plate-positional information device.

摘要

A document-plate-positional information device in which an actuator, for instance, is projected from an upper body of a clam-shell shaped image forming apparatus with the movable document plate toward the document plate when the upper body is opened, and the information signal is uttered about the movement of the document plate to the fixed position on the upper body due to interference in the actuator projected from the upper body with the protrusion formed beneath the under face of the document plate moving on the upper body.