Patent ID: 9341466
Filing Date: 2016-05-17
CPC Classification: B41J,G01B

Claim Text:
1. A printing apparatus comprising: a conveyor moving in a processing direction; a print head positioned adjacent said conveyor; a light source positioned adjacent a first side of said conveyor, said first side of said conveyor being parallel to said processing direction; a movable mirror positioned adjacent a second side of said conveyor, said second side of said conveyor being parallel to said processing direction, said second side of said conveyor being across said conveyor from said first side of said conveyor in a second direction, said second direction being approximately perpendicular to said processing direction; a fixed mirror positioned adjacent said first side of said conveyor, said fixed mirror being positioned along said first side of said conveyor between said light source and said print head; and a light sensor positioned adjacent said second side of said conveyor, said light sensor being positioned along said second side of said conveyor between said movable mirror and said print head, said light source outputting light to said movable mirror, said movable mirror directing said light to said fixed mirror, and said fixed mirror directing said light to said light sensor.