Motor-driven transmission unit of a fax machine

Details Motor-driven transmission unit of a fax machine Motor-driven transmission unit of a fax machine

1996-08-13

1998-09-08

Vu, Kim Yen

Facsimile and static presentation processing

Facsimile

Picture signal generator

358496, 358412, 271 1004, H04N 104, H04N 136

Patent

active

058053107

ABSTRACT:
A transmission unit mounted on the machine base of an office automation machine and covered with a cover and controlled to turn a first roller and a second roller, including a gear transmission mechanism, a first roller having a driven gear set at one end, and a second roller having a driven gear set at one end, wherein the gear transmission mechanism includes a motor, a rounded seat raised from the machine base, a drive gear mounted on the rounded seat and coupled to the motor, a first annular gear holder and a second annular gear holder revolvably mounted around the rounded seat and having a respective upright gear shaft, a crank turned about a pivot on the machine base and having an upright gear shaft at the free end, a first planet gear revolvably mounted around the gear shaft of the first annular gear holder and driven by the drive gear to turn the driven gear set of the first roller, a second planet gear revolvably mounted around the upright gear shaft of the crank and forced by the drive gear to turn the driven gear set of the second roller in letting of the thermal paper, and a sector gear mounted around the upright gear shaft of the second annular gear holder and forced by the drive gear to turn the driven gear set of the second roller reversely through a fixed angle after each operation of the copy or incoming mode.

REFERENCES:
patent: 4866531 (1989-09-01), Kobori et al.
patent: 5523858 (1996-06-01), Yamada et al.
patent: 5691826 (1997-11-01), Yeh et al.

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