18746526. IMAGE FORMING APPARATUS INCLUDING OPTICAL SCANNING APPARATUS (CANON KABUSHIKI KAISHA)
IMAGE FORMING APPARATUS INCLUDING OPTICAL SCANNING APPARATUS
Organization Name
Inventor(s)
HIROYUKI Fukuhara of Shizuoka (JP)
IMAGE FORMING APPARATUS INCLUDING OPTICAL SCANNING APPARATUS
This abstract first appeared for US patent application 18746526 titled 'IMAGE FORMING APPARATUS INCLUDING OPTICAL SCANNING APPARATUS
Original Abstract Submitted
An image forming apparatus includes an optical scanning apparatus configured to scan a photoreceptor with a light beam having a scanning speed changing in accordance with a position in a main scanning direction, and a control unit configured to output a horizontal synchronization signal for determining a timing at which an image signal generation unit outputs an image signal to the optical scanning apparatus. The optical scanning apparatus includes a beam detection sensor that outputs a beam detection signal indicating a detection timing of the light beam, and a memory that stores timing correction information. The control unit corrects, based on the timing correction information, a reference time, and outputs the horizontal synchronization signal to the image signal generation unit at a timing after a period corrected from reception of the beam detection signal.