Hello, bernard77
Welcome to the Microsoft Community.
Hello, thank you for your feedback on your issue here, it seems that after upgrading to the 24H2 the printer is experiencing some anomalies when printing.
I first did some research for you, there are other users who have fed back similar issues, which include different brands of printers, from the feedback, due to the incompatibility of the manufacturer's driver with win11, you can first refer to similar threads below. Some of the methods mentioned may help you:
When i start the canon MF 249d dw printer, then the pages start - Microsoft Community
Brother Laser Printer printing Multiple pages afetr 24h2 update - Microsoft Community
Random printing of rubbish eg. localhost, Keep-Alive, Windows Internet - Microsoft Community
In addition, it is recommended that you also feedback this issue to the printer's manufacturer to get the latest adapted driver for connection
Best regards
Bobhe | Microsoft Community Support Specialist