a SANE backend for Bell and Howell Copiscan II series document scanners

Backend	Version	Status	Supported Devices			Manual Page
			Manufacturer	Model	Comment
bh	0.2	NEW!	Bell and Howell	COPISCAN II 6338	Duplex Scanner with ACE - development model	sane-bh
				COPISCAN II 2135	Simplex Scanner - not tested
				COPISCAN II 2137(A)	Simplex Scanner (with ACE) - limited testing
				COPISCAN II 2138A	Simplex Scanner with ACE - not tested
				COPISCAN II 3238	Simplex Scanner - not tested
				COPISCAN II 3338(A)	Simplex Scanner (with ACE) - not tested
				COPISCAN 8000 Series	Mark Temple is working on this now. Looks very good so far!

Supports scanners such as the 6338 duplex model. Wow, what a scanner!

Some of the advanced features of these scanners are: Automatic Document Feeder - two versions of the feeder, the Accufeed and the Accufeed Plus are available with 50 and 500 sheet capacity respectively. Automatic Border Detection - the scanner is capable of recognizing the size of the paper being scanned and automatically adjusts the scan window to the appropriate size for the document. Duplex operation - scans both sides of the document in a single pass. Hardware based image compression - the scanner can return various compressed image formats (CCITT G3, CCITT G3-2D, CCITT G4) as well as uncompressed data. Barcode/Patchcode decoding - the scanner can recognize and decode various bar and patch codes and return the decoded data.