Method of transferring information indicating reflecting surface of rotating polygonal mirror
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United States of America Patent
Stats
-
Oct 9, 2018
Grant Date -
Jan 25, 2018
app pub date -
Jun 27, 2017
filing date -
Jul 25, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus has a detection unit, a rotating polygonal mirror and a generation unit. The rotating polygonal mirror has reflecting surfaces and configured to deflect light. The detection unit outputs a first signal in accordance with detecting the light. The generation unit, based on the first signal, generates a second signal which is a main scanning synchronization signal for controlling a write start in a main scanning direction. The second signal has a first waveform and a second waveform. The first waveform does not correspond to a reference reflection surface. The second waveform corresponds to the reference reflection surface and is different to the first waveform.
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Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- G03G Class
- 23.29 % this patent is cited more than
- 7 Age
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