Continuing AirPrint problem

My husband and I have successfully used AirPrint for both our iPads and iPhones until about a month ago. The document will start to print then a message appears saying “Printer is no longer available”. We can choose Try Again or Cancel. If ignored, a partial document prints. Try Again, results in the same thing. Cancel cancels the job. Then, another message comes up saying “The printer if busy” and we can Continue or Cancel Print Job. I have tried rebooting router and all devices to reset bonjour and that doesn’t help. Everything is on the same Wi-Fi. This printer is useless to me when trying to print from these devices. (It works fine from a Windows computer so I feel like it’s an AirPrint issue.). Any ideas? Many thanks!