1. Check the printer connection: If you are using a wireless printer, make sure it is properly connected to the network and set as the default printer on your computer. If you use a wired printer, make sure that the cable is properly connected and plugged into the computer.
2. Check the printer driver: If you have recently updated the computer operating system or replaced the printer, you may need to reinstall the printer driver. You can download the latest drivers from the printer manufacturer's website.
3. Printer Queue: If there are too many tasks waiting in your printer queue, please cancel or delete some tasks first to ensure that your printer is processing the correct tasks.
4. Printer language: Sometimes, the printer misunderstood the data or commands you sent, resulting in an output display error. At this point, you can change the printer language (such as PCL or PS) in the printer settings and try to print again.
5. Paper and ink: For the printer with wrong output display, it may be that the ink is used up or almost used up, or the paper is stuck or damaged. At this time, you need to replace new ink or paper and reprint it to solve this problem.
In a word, when there is a printer output display error, you need to determine the cause of the problem before troubleshooting. In general, checking printer connections, drivers and printer queues should be the most common reasons for exclusion. If the above methods can't solve your problem, you can also try to contact the technical support department of the printer manufacturer, who will guide you to further troubleshoot.