Light beam scanning device
AssigneeRicoh Company, Ltd.
InventorsTadashi Shinohara, Kenichi Ono, Shinji Kobayashi, Kohji Oshikiri
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Abstract
A signal is generated which is active only during an interval of taking one pulse of a series of output pulses of said synchronization detecting sensor, but is not active during an interval of taking more than one pulse thereof. Then, synchronization detection pulses are separated from the pulses output by the synchronization detecting sensor for the respective colors by using the thus-generated signal.
Claims16
A light beam scanning device for scanning a recording medium by a light beam so as to perform recording of information thereon, comprising:
- a synchronization detecting sensor to which light beams of a plurality of colors are applied with difference in time;
- a signal generating part which generates a signal which is active only during an interval of taking one pulse of a series of output pulses of said synchronization detecting sensor, but is not active during an interval of taking more than one pulse thereof;
- and
- a signal separating part which separates a synchronization detection pulse for each color only when the signal generated by said signal generating part is active.
A light beam scanning device for scanning a recording medium by a light beam so as to perform recording of information thereon, comprising:
- synchronization detecting means to which light beams of a plurality of colors are applied with difference in time;
- signal generating means for generating a signal which is active only during an interval of taking one pulse of a series of output pulses of said synchronization detecting means, but is not active during an interval of taking more than one pulse thereof;
- and
- signal separating means separating a synchronization detection pulse for each color only when the signal generated by said signal generating means is active.
Dependencies are inferred from the claim text.