We have a M365 user that is having trouble with printing from Excel only. We can open a spreadsheet and print normally, but when anything gets edited, it grays out the print button. I can get to the print dialog, but the button to actually print is what is grayed out. The workaround I found is to manually select a different printer in the print dialog, then select the original, default printer again. This allows it to print again, but the error always returns. It seems to be happening with any Excel file. I have tried the same files on other PCs and could not replicate the problem. I tried the online Office repair, but that did not help. Any ideas?