Patent ID: 9500980
Filing Date: 2016-11-22
CPC Classification: B41J,G03G

Claim Text:
1. An image forming apparatus comprising: a light source configured to emit a light beam of which light amount corresponds to a driving current supplied; a photosensitive member configured to be exposed to the light beam emitted from said light source; a light receiving element configured to receive the light beam emitted from said light source; a voltage setting unit in which a voltage for prescribing the driving current is set; a voltage control unit configured to control the voltage set in said voltage setting unit so that the light amount of the light beam received by said light receiving element becomes a target light amount; a determination unit configured to determine a correction parameter for correcting the voltage set in said voltage setting unit based on at least the voltage set in said voltage setting unit; a correction unit configured to correct the voltage set in said voltage setting unit with the correction parameter determined by said determination unit; and a current supply unit configured to supply the driving current corresponding to the voltage corrected by said correction unit to said light source based on image data.