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Anonymous users2024-02-06How photocopiers work.
1. The electrostatic photocopier directly projects the optical simulation image of the original through the optical system to the charged photoreceptor drum through exposure and scanning to generate an electrostatic latent image, and then completes the copying process through the steps of development, transfer and fixing.
2. The digital photocopier first conducts photoelectric conversion to the optical analog image signal of the original produced by exposure and scanning through the CCD (charge-coupled device) sensor, and then inputs the image signal processed by digital technology to the laser modulator, and the modulated laser beam scans the charged photosensitive drum, and produces a little electrostatic latent image on the photosensitive drum, and then completes the copying process through the steps of development, transfer, and fixing.
3. The difference between the principle of electrostatic photocopier and digital photocopier The biggest difference between the two is that when the digital copier makes a copy, the plate-making system of the digital copier's first scans the original document and makes a master, and then produces a copy according to this master, instead of re-scanning every copy printed by the electrostatic copier. The digital photocopier is imaged by laser scanning and digital image processing technology, which is not only a copy equipment, but also can be used as an input and output device and computer and other office automation (OA) equipment online, or become the terminal of the network.
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Anonymous users2024-02-05The main difference between the photocopier and the traditional lead printing, wax paper mimeograph, offset printing, etc. is that there is no need to go through other intermediate means such as plate making, and the photocopy can be obtained directly from the original, so many people will be curious about its working principle, thenCopier principleWhat are they? Below we will bring you a detailed explanation of the working principle of the copier, I hope it can be helpful to you.
What are the principles of photocopiers?
The working principle of the photocopier mainly includes the following three basic principles:
Copier principle 1, electrostatic principle: the charge has positive and negative polarity, the so-called electrostatic principle refers to the same charge repels each other; Opposite-sex charges attract each other. That is, the so-called same-sex repulsion, opposite-sex attraction.
Copier principle 2, optical imaging principle: the basic knowledge of optical imaging, the object is imaged as an image through an optical lens.
Copier principle 3, semiconductor principle: semiconductor principle is to be an insulator when static or reverse voltage is added; And when the forward voltage is applied, the taste body. The photosensitive drum material used in the photocopier is a photosensitive semiconductor, that is, it is an insulator in the dark state (not exposed to light); and in the bright state (light) it is a conductor.
Detailed explanation of the working principle of the photocopier:
The working principle of the photocopier is to use the potential characteristics of the light conductor to charge the light conductor when it is not illuminated, so that its surface is uniformly charged, and then through the principle of optical imaging, the original image of the manuscript is imaged on the light conductor. Because the image part is not illuminated (equivalent to the dark state), the surface of the light conductor is still charged, while the non-image area is illuminated (equivalent to the light state), so the charge on the surface of the light conductor is grounded by the substrate, so that the charge on the surface disappears, thus forming an electrostatic latent image. Then, through the principle of electrostatics, a toner with a polar opposite charge is used to convert the electrostatic latent image on the surface of the light conductor into a toner image on the surface of the light conductor.
Finally, the toner image on the surface of the light conductor is transferred to the surface of the copy paper through the principle of electrostatics, and the basic process of copying is completed.
The above is what are the principles of the photocopier brought to you? The full explanation of how a photocopier works.
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Anonymous users2024-02-041. Principle of static electricity:
There are two polarities of electric charges, positive and negative, and the so-called principle of electrostatic means that the same charges repel each other; Opposite-sex charges attract each other. That is, the so-called same-sex repulsion, opposite-sex attraction.
2. Principle of optical imaging:
The basic knowledge of optical disadvantage wide image: the object is rented into an image by an optical lens.
3. Semiconductor principle:
The principle of carrying semiconductors is to act as an insulator when static or reverse voltage is applied; And when the forward voltage is applied, the taste body.
Summary: The working principle of the photocopier is to use the potential characteristics of the light conductor to charge the light conductor without being illuminated, so that its surface is uniformly charged, and then through the principle of optical imaging, the original image is imaged on the light conductor.
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Anonymous users2024-02-03Summary. 1. The photocopier uses the potential characteristics of the light conductor to charge the light conductor without receiving light, so that the surface of the light conductor is charged uniformly, and then the original image is imaged on the light conductor through the principle of optical imaging. 2. The image part is not illuminated, so the surface of the light conductor is still charged, while the non-image area is illuminated, so the charge on the surface of the light conductor is grounded through the substrate, so that the charge on the surface disappears, thus forming an electrostatic latent image.
3. Through the principle of electrostatics, the toner with opposite polar charges is used to transform the electrostatic latent image on the surface of the light conductor into the toner image on the surface of the light conductor. Finally, through the principle of electrostatics, the toner image on the surface of the light conductor is transferred to the surface of the copy paper to complete the basic process of copying.
What is the principle of a photocopier, does it use paper?
1. The photocopier uses the potential characteristics of the optical conductor to charge the optical conductor without being illuminated, so that the surface of the photoconductor is uniformly charged, and then the original image is imaged on the optical conductor through the principle of optical imaging. 2. The image part is not illuminated, so the surface of the light conductor is still charged, while the non-image area is illuminated, so the charge on the surface of the light conductor is grounded through the substrate, so that the charge on the surface disappears, thus forming an electrostatic latent image. 3. Through the principle of electrostatics, toner with opposite polar charges is used to transform the electrostatic latent destruction of the surface of the optical conductor into a toner image on the surface of the optical conductor.
Finally, through the principle of electrostatics, the toner image on the surface of the conductor of the light sail car is transferred to the surface of the copy paper to complete the basic process of copying.
Wasting trees?
It won't be wasted, dear.
What is the situation of wasting trees.
Copier waste toner includes toner, paper ash, fiber, etc., which are not harmful to plants. And in the process of absorption, the soil is dug up for the first time and the roots are filtered for the second time. Moreover, the toner itself is commonly used by people every day, and there is no dangerous rock tomato harm to plants.
Soil is the basis for plant survival, and plants also have a protective effect on soil. After the rhizomes and leaves of the plant decay, they become humus, producing nitrogen, phosphorus, potassium and various trace gases to reduce the soil, increase permeability and improve fertility.
No, dear. The materials written by the teacher themselves will waste trees and will not be copied.
With a tree. Yes, dear.
Books, drawing paper, notebooks with trees?
The raw material of paper is trees, and these books and the like that we use now are made of trees, and you must know that a big tree can produce several tons of paper, and it is not a problem to use it for a few years if you usually write homework. Bright leaks.
China uses a lot of paper.
In 2021, the cumulative production capacity of the household paper industry will be about 10,000 tons, and the scale of new production capacity in the year will reach the highest since statistics are available. In 2022 and beyond, the industry has announced plans to add more than 10 million tons of new capacity. The Commission expects that overcapacity will further intensify and market competition will become more intense.
At this stage, the pulp price is high and the paper price continues to be relatively low, and the cost pressure of household paper manufacturers is still large.
As long as it is not wasted, our country's paper resources are still very rich.
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