Patent ID: 9557679
Date: 2017-01-31
CPC Classifications: G03G

Claim:
1. An image forming apparatus comprising: a photosensitive member; an optical scanning apparatus including: a signal generation unit configured to generate driving signals for the driving currents for driving the plurality of light sources, the driving signals being generated based on image data; and a developing unit configured to develop the electrostatic latent image formed on the photosensitive member using toner, wherein the light beam emitted from the third light source scans an area, on the photosensitive member, which the light beam emitted from the first light source has scanned and the light beam emitted from the fourth light source scans an area, on the photosensitive member, which the light beam emitted from the second light source has scanned, wherein the signal generation unit is further configured to generate a first driving signal for driving the first light source and a third driving signal for driving the third light source based on same image data corresponding to the first light source and the third light source, and to generate a second driving signal for driving the second light source and a fourth driving signal for driving the fourth light source based on same image data corresponding to the second light source and the fourth light source, wherein the first driving IC is further configured to supply a current to the first light source based on the first driving signal and supply a current to the second light source based on the second driving signal, and wherein the second driving IC is further configured to supply a current to the third light source based on the third driving signal and supply a current to the fourth light source based on the fourth driving signal.