Can I print black and white on behalf of Ganfutong?

Cannot print black and white on behalf of Ganfutong. Print pay is the color of the display code. The infection code can be printed as a paper health code, and the epidemic prevention personnel can display the name, code color, nucleic acid test report, vaccination certificate and other information of the health code. By scanning the code, the elderly and children can also use the paper health code to complete the nucleic acid detection.