What are the main functions and components of the printer and the main performance indicators?

<>1. Printing accuracy, that is, the resolution of the printer, the unit is dpi;

2. Printing speed, that is, it can print more and less sheets per minute;

3. Printing cost, that is, the cost of single printing.

A printer is one of the output devices of a computer that is used to print the results of computer processing on a related medium. There are many types of printers, and according to whether the printing element hits the paper, it is divided into percussive printers and non-percussive Mito printers. According to the structure of printed characters, it is divided into full-character printers and dot matrix character printers.

According to the way that a line of words is formed on paper, it is divided into serial printers and line printers. According to the technology adopted, it is divided into cylindrical, spherical, inkjet, thermal, laser, electrostatic, magnetic, and light-emitting diode.

and other printers.

The printer is mainly composed of the following two parts:

1.The inkjet part: the main thing is the word car, the paper rubbing assembly and the lateral movement is the x-axis.

2.Dot matrix printer: body housing, paper feeder, print head, ribbon, paper detector, power supply, control circuit, transmission system, etc.

3.Laser part: mainly toner cartridge, paper feeding part, fixing and laser, hub, development,

Scanning Components, Laser Generator Components, Fuser Components, Drum Components, Developing Components, Paper Discharge Components, Paper Feeding Components, etc.

Laser printer.

Print speed. Print speed refers to the number of pages per minute printed by the printer.

Print quality. Printer resolution.

Paper handling capabilities.

Network Print Server.

Dot matrix printers.

Among the many kinds of printers, the dot matrix dot matrix printer has been valued by most users, especially domestic users, because of its simple structure, moderate quality, mature technology, medium resolution and printing speed, diverse forms and wide application; In particular, the dot matrix dot matrix printer has incomparable advantages in printing Chinese characters, which is very suitable for China's national conditions. Therefore, in the current fierce competition of various types of printers, dot matrix dot matrix printers still occupy an important proportion in China's printer market.

First, the composition and function of the dot matrix dot matrix printer.

1) Word car transmission mechanism.

2) Paper conveying mechanism.

3) Ribbon transmission mechanism.

4) Print head.

The function and role of the main components in the electrical control section:

1) Microprocessor or microcontroller.

2) Data program character lattice memory.

3) Drive circuits and sensors.

4) Power supply. 5) Interface circuit.

Second, the working principle of dot matrix printer.

1.Receives computer host data.

2.Data processing.

3.Print control.

4.Paper feeding control.

5.Status detection and processing.

Third, the main technical parameters and performance indicators of dot matrix printers.

1.Printing method.

2.Printhead.

3.Character set.

4.Print speed.

5.Line spacing. 6.Interface.

7.Maximum buffer capacity.

8.Paper feeding method.

9.Paper width and paper thickness.

When using dot matrix printers, the most common is ribbon failure, and the following describes and solves several printer ribbon failures.

1. The ribbon is broken.

2. The ribbon is stuck.

3. The Hall effector is damaged.

4. The driving belt of the ribbon driving wheel is worn or broken.

5. The ribbon motion sensing signal is interrupted.

The main technical metric to measure a printer is resolution.

Resolution can be classified in two directions: display resolution and image resolution. Display resolution (screen resolution) is the precision of the screen image and refers to how many pixels the display can display. Since the dots, lines, and surfaces on the screen are made up of pixels, the more pixels a display can display, the finer the picture will be, and the more information can be displayed in the same screen area, so resolution is one of the most important performance indicators.

Think of the image as a large chessboard, and the resolution is expressed as the number of intersections of all the meridian and latitude lines. When the display resolution is constant, the smaller the display, the clearer the image, and conversely, when the display size is fixed, the higher the display resolution, the clearer the image. Image resolution is the number of pixels per inch, and its definition is closer to the definition of resolution itself.

Resolution, printing speed to accept.

There are three main types of printers: minute hand, inkjet, and laser.

Features: Needle punching consumables are saving, poor printing effect and high noise.

Inkjet filaments are saved, the printing effect is good when the printhead is not blocked, the printing speed is fast and slow, and the noise is small.

Laser printer consumables are expensive, but they are fast, effective, and less noisy than inkjet.

The printer industry is divided into: dot matrix printer - mainly for printing bills, the advantage is that it can print triple paper at a time, express delivery and invoices are widely used, but there are very few at present; Inkjet printer - wide color gamut, **low, but the disadvantage is that it is easy to block the ink head, and the paper is not good, it is easy to blur, most of the application is used in advertising companies to print samples, and the color of later printing is more accurate; Laser printer - the most popular printing method at present, fast speed, low cost, good effect, if you have to say the disadvantage is that the toner is polluted, especially in the closed office building, and then use the powder when there must be toner exposed, which is not good for the body. Other niche printers - thermal imaging, expensive but effective; Then there is the packaging printer, such as printing the production date on the bread bag, which is very professional and we don't use it in our lives.

Lenovo's products can be recommended, such as Lenovo Xiaoxin series products, M7268W, there are new self-developed products on the market this month, a variety of models can be selected, you can pay attention to it.