Hewlett-Packard is headquartered in Palo Alto, California, USA. HP has three business groups: Information Products Group, Printing and Imaging Systems Group and Enterprise Computer Professional Services Group. China Hewlett-Packard Co., Ltd. is headquartered in Beijing, with branches in Shanghai, Guangzhou, Shenyang, Nanjing, Xi, Wuhan, Chengdu and Shenzhen.

A scanner is an input device of a computer. Its function is to scan the appearance of pictures, photographs, films, manuscripts and other written materials or objects, and then input them into the computer and save them as files. In fact, the scanner has become the third most important computer input device after the keyboard and mouse.

How to choose a high-speed scanner

1, scan format

The maximum scanning formats of high-speed scanners are generally divided into A3 and A4. A3 high-speed scanner is much more expensive than A4 high-speed scanner, so demand implores to stop choosing according to theoretical application. Assuming that the documents to be scanned are basically A4, you can choose A4 format. Assuming that there are many documents in A3 format to be scanned, you only need to select the machine in A3 format.

2. Scanning speed of high-speed scanner

Generally, there are more than 20 pages to 100 pages per minute, but from the price point of view, the price of the machine will increase a lot every time the scanning speed is increased by 10 pages, so the demand should be stopped according to the actual application requirements, and the approximate calculation should be stopped by the scanning amount required by each machine every day.

3. Enhanced image processing

When purchasing a high-speed scanner, it depends on whether the high-speed scanner can meet the requirements in image enhancement, such as automatic cutting, correction, black edge removal, multi-color filtering, automatic identification of color/black and white manuscripts and so on. Special attention should be paid to image quality. The same parameters are set on different brands of machines to get different picture quality, of course, the better the picture quality.