Patent ID: 8965232
Filing Date: 2015-02-24
Classification: G03G

Abstract:
1. A positioning device to position a first member relative to a second member, comprising: two convex parts disposed on a side of the first member and apart from each other; and positioning portions disposed on a side of the second member so as to contact the convex parts, each of which is disposed apart from each other and opposed to each of the two convex parts, wherein the positioning portions include two planar portions disposed substantially perpendicularly with respect to a direction to allow the first member to approach the second member, and a slanted portion disposed in the vicinity of one of the two planar portions and angled with respect to the direction to allow the first member to approach the second member, wherein the second member is an endless belt, on a surface of which an image pattern for detection is formed, and wherein the first member is a sensor to detect the image pattern formed on the endless belt.