OPTICAL WRITING DEVICE, IMAGE FORMING APPARATUS, AND METHOD FOR CORRECTING DISPLACEMENT OF OPTICAL WRITING DEVICE

PROBLEM TO BE SOLVED: To shorten a period of time required for an adjusting process to adjust the position of an image in a main-scanning direction/a sub-scanning direction. SOLUTION: An optical writing device 111 includes: a pattern detection sensor 117 which includes a specular reflection light-receiving element 172 for outputting signals corresponding to a light-emitting element 171 illuminating the surface of a conveyance belt 105 and a quantity of light reflected from the surface of a conveying body; and a sensor control part 123 which detects the arrival of an image to a predetermined position based on the signals, and checks whether a quantity of irradiation light irradiated by the light-emitting element 171 is within a predetermined range. COPYRIGHT: (C)2011,JPO&INPIT