Method and apparatus for controlling lens of image forming appar

Details Method and apparatus for controlling lens of image forming appar Method and apparatus for controlling lens of image forming appar

1988-07-25

1990-04-17

Bovernick, Rodney B.

Photocopying

Contact printing

Light boxes

350320, 355 56, G02B 702

Patent

active

049174606

ABSTRACT:
In a method for controlling a lens of an image forming apparatus, the lens is moved at a high speed from a present position till passing a home position, and thereafter the lens is moved at a low speed in the reverse direction to stop at the home position. Waste of time can be decreased and rapid control of the lens can be achieved by high speed movement of the lens to a position near the home position, and the lens can be precisely stopped at the home position by low speed movement of the lens before stopping.

REFERENCES:
patent: 4601568 (1986-07-01), Takano et al.
patent: 4647191 (1987-03-01), Kunikawa et al.
patent: 4763174 (1988-08-01), Makiure et al.

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