Laser printer

Details Laser printer Laser printer

1989-10-16

1991-05-28

Arnold, Bruce Y.

Recorders

Record receiver deforming

350174, 346160, G02B 2608, G02B 2714, G01D 1514

Patent

active

050188054

ABSTRACT:
A laser printer is disclosed which is adapted to be used for color imaging. The printer comprises three diode lasers, each of which emits a light beam at a different wavelength. Each of the light beams passes along a separate channel to a pair of dichroic plates which combine the three beams into a single combined beam. The combined beam is scanned by a polygon onto a receiving medium which is sensitive to the infrared. Two cylindrical lenses in each channel are used to focus the beam in the channel at a registration plane located after the beam combining means. An optical relay is used to transfer the combined beam from the registration plane to the polygon and to focus the beam in a cross-scan direction on the polygon. The polygon is optically conjugated to the image plane in order to achieve cross-scan error correction.

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