I don’t have a printer and often need to print documents on various different printers in libraries and print shops. They all have different regions on the page which is unprintable. Anyone know if a PDF or LaTeX doc has been created which can be used as a sample/test page for finding the edge of the unprintable areas?

Otherwise I have to constant search the web for model-specific user manuals, wrestle with CAPTCHAs and various enshitifcation shenanigans by the dodgy user manual sites.