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AssigneeRicoh Company, Ltd.
InventorsYasuhiro Nihei, Masaaki Ishida, Atsufumi Omori, Dan Ozasa, Jun Tanabe
Estimating the term…
A write control circuit includes a first data switching circuit that sets a correspondence relationship between signals from line buffers and input signals to a delay circuitry, based on a signal from a CPU; and a second data switching circuit that sets a correspondence relationship between output signals of the delay circuitry and drive signals, based on a signal from the CPU. This enables a plurality of light emitting sections to be driven properly, regardless of a main scanning direction and an arrangement of a plurality of light spots being in any of CASE-1 to CASE-4 in an optical scanning device.
A light source driving device for use in an optical scanning device, the optical scanning device including a plurality of light emitting sections arranged at different positions with respect to at least a direction corresponding to a plurality of scanning lines and each of which operates based on a drive signal, and a scanning section that performs scanning by moving a plurality of light spots, formed on a surface to be scanned by a plurality of light beams emitted from the light emitting sections and propagated through an optical system, along the scanning lines in a main scanning direction, the light source driving device comprising:
An optical scanning device that scans a surface with a plurality of light beams, along a plurality of scanning lines in a main scanning direction, the optical scanning device comprising:
An image forming apparatus comprising:
Dependencies are inferred from the claim text.