Visioneer 7300 and USB

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History Fan

The Visioneer 7300 is a bus powered USB scanner, so no power cable is
necessary. Does this type of scanner use more system resources than a
traditional flatbed scanner? I keep thinking there must be some drawbacks
to a USB-powered scanner because most flatbed models that I have seen are
not configured that way.
 
History said:
The Visioneer 7300 is a bus powered USB scanner, so no power cable is
necessary. Does this type of scanner use more system resources than a
traditional flatbed scanner? I keep thinking there must be some drawbacks
to a USB-powered scanner because most flatbed models that I have seen are
not configured that way.
Click to expand...

USB powered scanners use a different detector technology (CIS rather
than CCD) with simpler optics and lower power requirements.
Advantages: Small, inexpensive, functional, works well for paper and prints.
Disadvantages: Low depth of field, not for slides, film or highly
textured objects. Not finest art quality. Great for OCR on the go.
 
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