Evelyn's HP laser printer only prints the top half of the page and gives up. Leo suspects it may be software, but a laser printer works like a Xerox Machine and as such, may need maintenance. The printer drivers may need to be reinstalled. Go to HP.com and download the latest software for it. But laser printers are so cheap now, it may just be time to get a new one.
From the chatroom - https://h30434.www3.hp.com/t5/LaserJet-Printing/LaserJet-only-prints-half-a-page-vertical-part/td-p/6494901 or https://h30434.www3.hp.com/t5/Inkjet-Printing/My-printer-only-printed-half-of-the-page/td-p/6558520. Or https://techsupportexpert.com/how-to-resolve-hp-printer-only-half-page-issue/