How to distinguish between good and bad scanners, and which scanner is good to use?

1. First of all, confirm whether the scanning head is CCD or CIS, CCD is preferred;

2. Then look at the optical resolution of the scanner, the higher the optical resolution, the better, and you don't have to consider what interpolation resolution is calculated by the computer.

A scanner is a device that uses photoelectric technology and digital processing technology to convert graphic or image information into digital signals by scanning it. Scanners are often used in external computer instrumentation to capture images and convert them into digital input devices that can be displayed, stored, and output by a computer. The scanner can be used as scanning objects for three-dimensional objects such as **, text pages, drawings, art drawings, photographic negatives, film films, and even textiles, sign panels, printed board samples, etc., extracting and converting the original lines, graphics, text, **, and flat objects into devices that can be added to the document.

The scanner belongs to the input system in computer-aided design (CAD), through the interface of computer software and computer, output equipment (laser printer, laser plotter), forming a screen prepress computer processing system, and is suitable for office automation (OA), widely used in signage panels, printed boards, printing industries, etc.

Scanner-based** should not have too low optical resolution. It is best to choose products above 2400dpi. If it is not for professional printing, about 300 yuan is enough.

Zhongjing, HP, Unisplendour, etc. are all good choices, and the market sales are high. Among them, Zhongjing has been the leader of the world's scanners for many years, occupying the largest market share in the quarters, and the quality and service are the best, which can be given priority. HP focuses on high-end products, and the Chinese character recognition software of Unisplendour distribution is easier to use.

It is recommended to use the network disk, scan the certificate function. Start working from home, use it more and more, scan documents, just open the software, and then take photos and scan photos, and then he will automatically deal with it, such as trimming, beautifying, adjusting, removing cluttered background, after the scanning is completed, you can save it directly, so that a ID photo is good, he will have a small prompt, follow the prompt to stitch multiple ID photos onto a piece of paper, these are all casual yourself, of course, you can also choose to save the format can be jpg can be pdf

2. Then it will open the face, then slide right directly to the end, select Document Scan, and then select Start Production.

3. After that, take a photo of the front and back of the ID card according to the prompts, and select it to complete after taking the shot.

4. After completion, you can choose to convert to PDF and convert to Word. And so on.

Precautions. Try to keep it as stable as possible when taking photos of ID cards to prevent unclear shots.

I don't know anything. I'll use whatever equipment you have, hehe

I found out that the mobile phone comes with a "scanner" function, which is better than taking pictures, and it can be really useful if you learn it.

If you come here to study, Ah Liang is a good choice.

The effect of scanning the face to face is very good, and it is definitely much clearer than the camera.

I found out that the mobile phone comes with a "scanner" function, which is better than taking pictures, and it can be really useful if you learn it.

Want to learn? Most of them have requirements for talent, except for Ah Liang's card playing skills to teach for free!

Canon (world brand, leading brand, No. 1 in market share, in 1937 in Japan).

Sinocrystal Microtek (domestic scanner Qiyan brand, top ten scanner brand) Tsinghua Unisplendour Thunis (Beijing, 1988, national key high-tech enterprise, top ten scanner brand).

Epson (founded in Nagano, Japan, in 1942, a global leader in digital imaging).

BenQ (founded in 1984 in Taiwan, world brand, top ten scanner brand) HP (1939 California, USA, world brand, top ten scanner brand) Hanwang HW (in 1998 Beijing, national high-tech enterprise, top ten scanner brand).