1. Check the color ink cartridge.
First, you should check the color ink cartridge of the printer. Please make sure that they are installed in the correct position and there is enough ink. If you find that an ink cartridge doesn't have enough ink, you need to replenish or replace it. At the same time, some printers will automatically stop color printing after the ink cartridges are used up.
2. Perform print head calibration
In addition, you may need to perform print head calibration to ensure that the nozzles of each color cartridge spray ink evenly. Most printers have the function of automatically calibrating the print head. You just need to find the corresponding options in the settings.
3. Query the printer driver
If your printer already has a driver installed, you may need to check whether there is an updated driver. Downloading and installing the latest driver in official website, a printer manufacturer, can help solve the driver problem.
4. Clean the color ink cartridge and print head
In addition, if your printer looks good after a period of use, you may need to clean the ink cartridges and print heads. You can try cleaning with the printer's cleaning program. At the same time, you can also use a wet cloth or cotton swab to gently wipe the color ink cartridge and print head for cleaning.
5. Check the printer language settings.
There may also be a problem with the language settings of the document or picture you are printing, because some printers may need correct settings to accurately print files in other languages. You can check the correct language settings in the printer settings.
In a word, if your printer displays red when printing in color, the above methods may help you solve the problem. You can try to solve the problem one by one according to the above steps.