Why is black needed for color printing?

First, to reduce the color deviation on neutral colors (grayscale) The imaging method used in the printer is CMYK color system (C-cyan, cyan; M-magenta, magenta; Y-yellow, yellow; K-key, key color), CMYK color system belongs to subtractive color system, that is, different colors The more superimposed, the darker the color, and the final CMY will be synthesized into black. But with current technology, CMY cannot be synthesized into pure black, and the final synthesized color is dark gray or dark brown. Therefore, when using color ink to synthesize black, you need to add black ink to make the color more pure. In the same way, when you want to print a […]

Maintenance and management of laser printers

1. Choose copy paper correctly Laser printers are used to output paper samples, so first choose paper. It is best to choose electrostatic copy paper. The range of paper is 60-10Sg/square meter. 70g/square meter copy paper is often used. Paper that is too thin or too thick will easily cause paper jam. It may cause mechanical abrasion. It is best not to cut the paper yourself. The cut paper often has burrs and the paper lint accumulates in the machine, which will damage the machine parts and may also scratch the photosensitive drum. Before using the paper, do not put it directly in the paper box. You should make dumplings […]

Factors Affecting Printing Blackness in Laser Cartridge

The toner cartridge of the laser printer assembly plays an important role in the imaging of the laser printer, and it directly affects the blackness of the printing. Several key parts of laser drum: toner, photosensitive drum, charging roller, magnetic roller and scraper. Their corresponding roles are as follows: 1. Toner, as an attachment directly melted on the printing medium, the scientific proportion and fineness of its main components play a decisive role (black toner is available on the market); 2. The photosensitive drum is the core component of exposure imaging, and its photosensitive performance also plays a decisive role in the blackness of the printed product. There is already […]

Why is black color needed for color printing?

1. To reduce the color deviation on neutral colors (grayscale) The imaging method used in the printer is CMYK color system (C-cyan; M-magenta; Y-yellow; K-key). CMYK color system belongs to subtractive color system, that is, the more different colors are superimposed, the darker the color. Eventually CMY will be synthesized into black. But with current technology, CMY cannot be synthesized into pure black, and the final synthesized color is dark gray or dark brown. Therefore, when using color ink to synthesize black, you need to add black ink to make the color more pure. In the same way, when you want to print a dark color, in addition to adding […]

Tips for the use of laser printer

The laser printer has been warmed up for more than 2 minutes or the shape is not firm, and the text is off: 1.To consider whether the indoor temperature is above 20℃; 2.To check whether the thermistor has poor contact or failure; 3.To see if the voltage reaches 220V; 4.To see if the paper and toner are too moist.

What will happen to the printer copier in cold weather?

As we all know, printers and copiers use heating to fuse the toner on the paper to achieve fixing. Therefore, many printers and copiers indicate the operating temperature range (usually 10-23 ℃) in the manual. What will happen next? For example, in the winter in our central and northern regions, the general temperature is below 10°C. Using the copier under this temperature environment may cause the following situations: 1. The code generated when the fuser responsible for heating cannot reach the specified temperature within the predetermined time (high probability); 2. Speed ​​reduction caused by unstable heating of the fuser (lower than normal printing speed); 3. Effect problems caused by the […]

​​Pay attention to the following points in the use of laser printers

1. The printer casing must have a good grounding wire. Otherwise, the static electricity generated by the printer will make the performance of the machine unstable, affect the quality of samples, and damage the machine and hurt people in serious cases. 2. The printer has high pressure and high temperature, so you cannot open the case casually. 3. This machine has high power and high frequency of temperature-controlled thyristor de-spreading. It is best to use a regulated power supply alone. 4. When a paper jam occurs during use. Be sure to determine the location of the paper jam first, and then gently and cleverly remove the jammed paper. Otherwise, the […]

Why the ink cartridge prints color cast

1. Different printing paper will affect the printing effect Normal printing paper is used, and the background color of the paper is dark; the quality of the paper is too poor, and the ink penetrates into the fibers of the paper or melts away, changing the color depth of the pattern. It is recommended to use special inkjet paper, which has a layer of titanium dioxide as the base material, which can make the ink distribution more even. 2. Wrong print settings Printing has a lot to do with the saturation ratio chosen by the operator when adjusting colors. In addition, the choice of dpi and printing speed will also […]

Why the printed text is light

1. The printing paper is wet If the printing paper is damp, consider replacing it with dry paper and printing again. 2. Dirty or aging transfer roller If it is checked that the transfer roller is dirty, the transfer roller needs to be cleaned; if it is aging, the transfer roller needs to be replaced. 3. The edge of the powder knife is aging If the edge of the powder ejection knife is aging, just replace the powder ejection knife. 4. Wear of magnetic roller or charging roller If the magnetic roller or charging roller is worn out, replace the magnetic roller or charging roller. 5. Photosensitive drum fatigue If […]

Why do vertical streaks appear in printing

1. The cleaning blade is notched or the photosensitive drum has obvious scratches If the cleaning blade is notched or the photosensitive drum has obvious scratches, it means that these two parts have been damaged. At this time, the cleaning blade or the photosensitive drum needs to be replaced to solve the problem. 2. The powder knife is aging Every item has a service life, the same as the powder knife. When the powder knife is aging, vertical streaks will appear. At this time, you need to replace the powder knife to solve the problem. 3. The corona wire or charging roller is contaminated If the corona wire or the […]

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