Epson RX425 scanning technology

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Hi!

Technical specification of this device says its scanning technology is CIS
(CCD Type). What does it mean?
 
Dnia Tue, 08 Feb 2005 16:51:05 GMT, CSM1 napisa³(a):
CIS is (Contact Image Sensor).

It means that the scanner has zero depth of field. Thus the "Contact" in its
name.
The scan object has to be contacting the glass to be in focus.
Click to expand...

OK, but this is CIS (CCD type) scanner. If this is CIS scanner, why is it
CCD type?

http://www.epson.co.uk/products/all_in_one_products/product_spec/Stylus_Photo_ RX420.htm

Look at scan technology. It says CIS(CCD type) - aren't that opposite
technologies?
 
£ukasz Ledóchowski said:
Dnia Tue, 08 Feb 2005 16:51:05 GMT, CSM1 napisa³(a):


OK, but this is CIS (CCD type) scanner. If this is CIS scanner, why is it
CCD type?

http://www.epson.co.uk/products/all_in_one_products/product_spec/Stylus_Photo_ RX420.htm

Look at scan technology. It says CIS(CCD type) - aren't that opposite
technologies?
Click to expand...

It may be wrong terminology on their part. They should have said "Image
Sensor Type".

Technically A CIS is an array of photo diodes or transistors with no lens.
http://p-imaging.com/cis.htm
http://p-imaging.com/cis_chips.htm
 
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