Scanning of paper or hard copies is very important to simplify the documentation process. There are different types of scanners available for different paper sizes. Scanning can be carried out for paper sizes ranging from A0 to A8.a0 scanning and a1 scanning requires large format scanners are required to carry out scanning.
To get better scanned results, the large format scanners should be set for appropriate settings. There are basically two types of scanners namely technical imaging and graphics. Technical imaging includes scanning of blueprints, drawings and maps. The scan will be of limited color or monochrome. Graphics scanning include scanning of images, artwork and photographs. The scan will include full color.
Both the scanners work on the optical imaging technology of either CCD or CIS. CCD is the abbreviation of Charge coupled device while CIS is Contact Image sensor. The type of technology used determines the data captured, fine lines, sharpness and color of the scan.
Generally, it is observed by the experts that output from CIS scanner is sharper with fine line details especially in drawings. CCD scanners are more suited for graphics scanning as it has the capability to capture more colors accurately. This cannot be totally generalized but indicative to use the relevant scanner for the particular purpose. Therefore, CIS scanners are generally used for AEC, GIS and CAD color capture applications. Based on the requirement, the best scanner should be bought.
Even though, there are better scanners in the market, many a times, poor quality images are seen. This is due to the fact that operators are not well trained and ignorance to understand good quality output. Generally, there is a notion that scanning job is easy and therefore inexperienced operators are put in the job. Importance of proper training should be identified to get quality results.