While standalone scanners do exist, a lot of the best printers also include the ability to quickly and easily scan documents into your Windows PC or Mac (and sometimes even onto an iPhone or iPad).
After the release of the Windows 11 24H2 update, Microsoft has acknowledged several compatibility issues that are affecting USB-connected printers and scanners.
Microsoft now blocks the Windows 11 24H2 update on computers with standalone scanners, multi-function printers, fax machines, ...