EDGE DETECTION APPARATUS, IMAGE FORMING APPARATUS, AND EDGE DETECTING METHOD

摘要

An edge detection apparatus for detecting an edge of a recording medium to be conveyed includes a light source, a plurality of photoelectric conversion element pixels, and a detection unit. The light source irradiates the recording medium with light. The plurality of photoelectric conversion element pixels are placed in a direction orthogonal to a conveyance direction of the recording medium and convert light reflected by the recording medium into an electrical signal. The detection unit detects the edge of the recording medium on the basis of a plurality of electrical signals that constitute an n-th (n≧1) electrical signal group obtained by dividing the plurality of electrical signals corresponding one-to-one to the plurality of photoelectric conversion element pixels, and a specified number of the electrical signals counted from a top of the plurality of electrical signals that constitute an n+1st electrical signal group.

主权项

1. An edge detection apparatus for detecting an edge of a recording medium to be conveyed, comprising:
a light source that irradiates the recording medium with light; a plurality of photoelectric conversion element pixels that are placed in a direction orthogonal to a conveyance direction of the recording medium and convert the light reflected by the recording medium into an electrical signal; and a detection unit that detects the edge of the recording medium on the basis of the plurality of electrical signals that constitute an n-th (n≧1) electrical signal group obtained by dividing the plurality of electrical signals corresponding one-to-one to the plurality of photoelectric conversion element pixels, and a specified number of the electrical signals counted from a top of the plurality of electrical signals that constitute an n+1st electrical signal group.