Patent ID: 9091953
Filing Date: 2015-07-28
Classification: G03G

Abstract:
1. An image forming apparatus, comprising: an image forming unit configured to form toner images, to be transferred onto a recording medium, on an image bearing member on which the toner images formed on a plurality of photosensitive members by the image forming unit are transferred by the image forming unit, wherein the image forming unit forms toner patterns for detecting a relative position of the toner images on the image bearing member; a detection unit including: a conversion unit configured to convert the analog signal into a binary signal based on a predetermined threshold value; a correction unit configured to correct a misregistration between the toner images transferred onto the recording medium based on the binary signal; and a control unit configured to control, when values of the analog signal based on the light intensity of the reflection light from the image bearing member include a value lower than the threshold value, light intensity of the light from the light emission unit irradiating the image bearing member and the toner patterns so that the values of the analog signal based on the light intensity of the reflection light from the image bearing member become higher than the threshold value.