System for reciprocating optical units of different speeds in op

Details System for reciprocating optical units of different speeds in op System for reciprocating optical units of different speeds in op

1992-01-22

1993-10-05

Fuller, Benjamin R.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358497, 400322, 400903, H04N 1036, H04N 104, B41J 1930

Patent

active

052510395

ABSTRACT:
A device for driving optical units for scanning manuscript and provides that movement of the optical units during scanning is achieved by a first pulse motor exhibiting low-noise and high-torque characteristics within a motor speed range suitable for achieving a desired scanning travel speed. Return movement of the optical units is achieved by a second pulse motor exhibiting low-noise and high-torque characteristics within revolving a motor speed range suitable for achieving a higher desired return travel speed. Not only are the optical units moved in both directions, but also noise generated during such movement is reduced as much as possible.

REFERENCES:
patent: 4203679 (1980-05-01), Duerr et al.
patent: 4731657 (1988-03-01), Miyagi
patent: 4748514 (1988-05-01), Bell
patent: 5075539 (1991-12-01), Shiraishi

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