LIGHT SCANNING APPARATUS AND IMAGE FORMING APPARATUS

摘要

A light scanning apparatus, including: a first division unit configured to divide light emitted from a light source into a first and a second light beams; a deflection unit configured to deflect the first and second light beams to scan a first and a second scanned surfaces; a detection unit configured to detect the second light beam; a control unit configured to control, based on a detection result of the second light beam detected by the detection unit, a timing of the first light beam and a timing of the second light beam; and a second division unit configured to divide the first light beam into a third light beam and a fourth light beam and to guide the fourth light beam to the detection unit to control light intensity of the light source based on a detection result of the fourth light beam detected by the detection unit.

主权项

1. A light scanning apparatus, comprising:
a light source; a first division unit configured to divide light emitted from the light source into a first light beam and a second light beam; a deflection unit configured to reflect the first light beam to scan a first scanned surface and to reflect the second light beam to scan a second scanned surface; a detection unit configured to detect the second light beam reflected by the deflection unit; a control unit configured to control, based on a result of detection of the second light beam detected by the detection unit, a timing of scanning the first scanned surface with the first light beam and a timing of scanning the second scanned surface with the second light beam; and a second division unit disposed between the first division unit and the deflection unit and configured to divide the first light beam into a third light beam and a fourth light beam, the second division unit being configured to guide the fourth light beam to the detection unit so as to allow the control unit to control light intensity of the light emitted from the light source based on a result of detection of the fourth light beam detected by the detection unit.