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As far as i know, scanners never do data compression. &nbsp;It is all done in software at the pc.<br />
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As far as i know, scanners never do data compression.  It is all done in software at the pc.



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scanners just use the raw image... it is the software that does the compression... that is the reason that you can select so many compression formats for the image with the software<br />

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scanners just use the raw image... it is the software that does the compression... that is the reason that you can select so many compression formats for the image with the software


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Okay Joe, you have given me a comprehensive answer and the related links info pertaining to my question.<br />
<br />
thanks a lot. <br />

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Okay Joe, you have given me a comprehensive answer and the related links info pertaining to my question.

thanks a lot.


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Hardware compress / decompress. <br />
Could someone give me an elaborate explaination about this ? <br />
I would like to know about the process of data transfer from scanner buffer to CPU buffer,what kind of data is that ? <br />
Is it compressed data or raw data ? if compressed, what type of compression used ? <br />
<br />
still related to the topic, TIFF group 4 compressed, does it refer to software compress or &nbsp;hardware compress ? <br />
<br />
thanks for the reply. 
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Hardware compress / decompress. 
Could someone give me an elaborate explaination about this ? 
I would like to know about the process of data transfer from scanner buffer to CPU buffer,what kind of data is that ? 
Is it compressed data or raw data ? if compressed, what type of compression used ? 

still related to the topic, TIFF group 4 compressed, does it refer to software compress or  hardware compress ? 

thanks for the reply. 

Hardware compress

Hardware includes cell phones and other digital living devices, tablets, computers, servers, peripherals and components, printers and scanners, gaming consoles, networking hardware such as routers, hubs, switches and modems, storage devices and security equipment such as firewalls and other appliances.