Print problem - Won't turn paper to landscape

I am using CorelDRAW 2017, printing using HP T120 wide format roll printer.  All of my documents use custom size pages.  The printer cuts to the exact size I need after printing.  My issue is that when I select the landscape option under Preferences, Corel will turn the document to landscape but won't turn the paper to landscape unless it is the normal letter size.  Under the General - Destination - Page: Match orientation and Size (custom, landscape) is correct.  However the paper is always displayed in Portrait.  I cannot change the paper no matter what I do.  If I print, Corel will adjust the document and make it fit the page.  The Resizing Options under the Layout tab are set to Actual Size.  This was not an issue less than 5 days ago on this computer.  I installed a new black ink cartridge (genuine HP) and that seemed to start the problem.  I have been using this same printer for 2 years with this same computer and the same CorelDraw 2017.  Any ideas on what could be the problem?