Beam scanning device for an electronic photography type printer
AssigneeGoldstar Co., Ltd.
InventorHoon B. Choi
Life of this patent
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Abstract
A scanning device for an electronic photography printer which comprises a photosensitive drum, a rotary cylinder horizontally disposed and provided with spiral slits which are spaced from one another, an LED array horizontally penetrating the inside of the rotary cylinder and having a plurality of LEDs which are disposed on the LED array and each having a width of the same distance as the space between respective spiral slits of the rotary cylinder, a horizontal slit plate disposed between the photosensitive drum and the rotary cylinder and having a plurality of slits which are inclined on the basis of the horizontal line of the horizontal slit plate and spaced from one another, and a self-focus lens array horizontally disposed between the photosensitive drum and the horizontal slit plate.
Claims5
A scanning device for an electronic photography printer comprising:
- a photosensitive drum
- a horizontal rotary cylinder having a circumferential surface and a plurality of spiral slits cut on said surface, said slits being axially spaced from one another along said cylinder;
- a horizontal LED array extending inside of the rotary cylinder, said array having a plurality of LEDs, said LEDs being disposed on the LED array and having widths equal to the axial spacing between adjacent ones of said spiral slits of the rotary cylinder;
- a horizontal slit plate disposed between the photosensitive drum and the rotary cylinder and having a plurality of longitudinally aligned slits, said slits of said slit plate being inclined with respect to a horizontal line of the horizontal slit plate and axially spaced from one another;
- and
- a self-focus lens array horizontally disposed between the photosensitive drum and the horizontal slit plate.
Dependencies are inferred from the claim text.