Patent ID: 8933979
Filing Date: 2015-01-13
Classification: B41J

Abstract:
1. An image forming apparatus comprising: a light source configured to turn on in response to a driving current supplied based on image data; a photosensitive member on which an electrostatic latent image is formed by exposing the photosensitive member to a light beam output from the turned on light source; a current supply unit configured to add a correction current to the driving current being supplied to the light source to correct a rise of a light amount of the light beam, wherein a peak value of the correction current is based on a driving state of the light source prior to the driving current, and the correction current reduces from its peak value as time advances; and a control unit, the control unit including a detection unit configured to detect a turn-on time and a turn-off time indicating the driving state of the light source based on the image data.