Facsimile and static presentation processing – Facsimile – Synchronization
Reexamination Certificate
2007-03-06
2007-03-06
Lamb, Twyler (Department: 2625)
Facsimile and static presentation processing
Facsimile
Synchronization
C358S414000, C358S486000, C074S354000
Reexamination Certificate
active
10317976
ABSTRACT:
The present invention relates to an image scanning apparatus having a scanning module, a transmission belt, a speed-change gear module, and a driving device. The driving device drives the transmission belt by using the speed-change gear module so as to drive the scanning module positioned on the transmission belt to scan an image. The speed-change gear module provides various speed-change ratios so that the driving device may drive the transmission belt at different speeds under the same speed of the driving device. In the embodiment, the speed-change gear module has a switching platform for accommodating the speed-change gear module. The stepping motor serving as the driving device is connected with the speed-change gear module by the motor gear. The transmission belt is connected with the speed-change gear module by the belt wheel. When moving or rotating the switching platform to switch between the deceleration ratios, a first set of deceleration gear and a second set of deceleration gear selectively engages with a motor gear.
REFERENCES:
patent: 6115149 (2000-09-01), Lai et al.
patent: 6236472 (2001-05-01), Tsai
patent: 6244124 (2001-06-01), Lee
BenQ Corporation
Lamb Twyler
Safaipour Houshang
Snell & Wilmer L.L.P.
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