Paper-fed scanners are also known as drum scanners or small drum scanners. Paper-fed scanners were born at the beginning of the 90s. Due to the high price of the flatbed scanners, the scanning width of the handheld scanners is small to meet the A4. The need for web scanning, introduced this product, the vast majority of products using CIS technology, optical resolution of 300dpi, both color and gray, color models are generally 24-bit color, but also with a few feed The scanner uses CCD technology, and the scanning effect is significantly better than that of CIS technology. However, due to structural limitations, the volume is generally significantly larger than that of CIS technology.
With the decline in the price of flatbed scanners, these products also withdrew from the historical stage around 96-97. However, a new type of product appeared around 2001. The biggest difference between this type of product and the old product is its small size. It uses a built-in battery for power supply, and some even require no external power supply. It directly depends on the internal power supply of the computer. The main purpose is to Supporting laptops, also known as notebook scanners.
With the decline in the price of flatbed scanners, these products also withdrew from the historical stage around 96-97. However, a new type of product appeared around 2001. The biggest difference between this type of product and the old product is its small size. It uses a built-in battery for power supply, and some even require no external power supply. It directly depends on the internal power supply of the computer. The main purpose is to Supporting laptops, also known as notebook scanners.
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