HP Officejet 4620

• plug it in, it powers up for a little bit, then turns off
• seemed to need a power cycle / hard reset
• advised how to do it again in future

• also has a dead ‘l’ key it seems https://h30434.www3.hp.com/t5/Printers-Archive-Read-Only/Reset-Instructions-for-Officejet-4620/td-p/6107129