Very high speed duplicator with limitless finishing function
Scanning optical system having a tilting correcting function
Scanning optical system Patent #: 4674825
ApplicationNo. 07/067015 filed on 06/29/1987
US Classes:347/137, Lens347/139Record receiver or conveyor means therefor
ExaminersPrimary: Prescott, A. C.
Assistant: Lav, Jane
Attorney, Agent or Firm
International ClassesB41J 2/47 (20060101)
B41J 2/435 (20060101)
H04N 1/113 (20060101)
G02B 13/00 (20060101)
G02B 26/12 (20060101)
Foreign Application Priority Data1986-06-27 JP
AbstractA laser beam printer, in which a laser beam outputted by a laser diode pulse-modulated and controlled is deviated to be swept by means of a polygon mirror and folded by a reflecting mirror, after having passed through an Fθ lens including two single lenses, so that it traverses the space between the two single lenses and reaches a light sensitive drum in order to expose it thereto.