projecticodis

As a high-tech product integrating photoelectricity and machinery, scanner has become a necessary electrical appliance for daily office and life due to its unique digital "image" acquisition capability, low price and excellent performance. Scanners can be divided into platform type/flat plate type, drum type, portable type, high-speed camera, business card scanner, etc. There are certain requirements for their purchase, use, installation, sharing and maintenance, and some common faults need t...

1. Unplug the power socket or turn off the power when it doesn't cool down

As we all know, heat is the killer of projection light bulb, which is the reason why many manufacturers have repeatedly stressed the effect of heat dissipation. After the projector is turned off, it is better to cool it down for a while. The airtight design of projector is difficult to automatically dissipate heat. After unplugging the power supply, the projection fan will stop working immediately. As a result, a...

When you choose a professional non-contact book scanner, you need to know what is the key factor.

Extra-curricular books, textbooks, magazines and historical documents have different colors, shapes and sizes. For libraries, archives and museums, the digitization needs of historical data is facing greater challenges. When establishing and investing a suitable digital platform, the choice of professional book scanner type is a very important link. The purpose of this article is to provide...

Do you pay attention to the precise information of every detail or just take a rough understanding ?

To evaluate the quality of professional scanners, image resolution is the key factor. Resolution is a key indicator of the scanner's ability to reproduce accurately or roughly. The higher the resolution is, the more accurate the details and levels collected from the original file will be.

Comparing the two types of CCD scanning systems, the real resolution is very impo...

Scanners can convert written materials or physical objects such as pictures, photos, films and manuscripts that want to be saved into pictures or PDF format and input them into computers. They are important equipment for paperless work. So how to install the scanner? There are different types of scanners and different methods of installation. Let's take a look at the installation procedures of the three types of scanners.

Three scanner installation procedures

1. Insta...

Working Principle of Scanner: Currently, the working principle of desktop scanner is divided into two types: CCD and CIS. CIS products work like fax machines. They have no lens components, and use light emitting diodes as light sources and diode photosensitive elements. Because of its simple and compact structure, the volume can be made very small. The thickness of CIS products is usually less than half that of CCD products. However, CIS devices have no lens imaging part, so the depth of fiel...

After the projector lens is used for a period of time, stubborn dust will adhere to the surface, resulting in reduced light efficiency and degraded image quality. How to clean the projector lens is different from cleaning the camera lens. The projector lens has a large caliber, and since most people do not cover the lens lid, it is more complicated to clean the projector lens because it is exposed to air for a long time and dust adheres more seriously.

Clean the projector l...

Good preparation

Before using the scanner, it is necessary for average users to have a preliminary understanding of the basic principles of the scanner, which will greatly contribute to the correct and reasonable use of the scanner. The scanner acquires the image by irradiating the light onto the picture or document to be scanned. After the light is reflected, it is received by the photosensitive element -- CCD (Charge Coupled Device) or CIS(Contact Image Sensor). Due to the different c...

Suitable resolution

When using the scanner, many users often wonder what resolution to scan with. In fact, it depends on the actual application needs of users. Higher resolution means more image details, clearer effect and more perfect color restoring power can be obtained, but at the same time it also means that the scanned image file is enlarged and difficult to process. For the Internet with more applications, the resolution of pictures on websites is usually about 75dpi, which means...

There are three main types of carriers of a country, a nation, a society, and even the historical information of all mankind. The first category is character, including documents, books, and seals; it can directly record history. The second category is physical objects. This category is large in number and diverse in variety, from which a large amount of historical information can be mined. The third category is spiritual inheritance, such as morality, religion, language, art, and craftsmansh...