Canon Printer Error 6000 usually occurs when there is a paper jam or an obstruction inside the printer that prevents the paper feed tray from functioning properly. It can also be caused by dirty or misaligned rollers, a faulty paper sensor, or incorrect loading of paper. Restarting the printer, cleaning the paper path, and ensuring no debris is stuck inside often helps fix this issue. https://www.canonprintersupportpro.us/blog/fix-canon-printer-error-6000/