imageCLASS MF642Cdw How to adjust print area for check sheets and documents

[WMRutah]

I use Quicken for windows to print checks.  There are three checks per page.  If I print one check, I have 2/3 of a page (2 checks) left for next time.  Later, when I print those two checks, the MF642cdw resets the print area to 2/3 of a page because that's all that went through the tray.  Anything I print later, from any source only prints 2/3 of the page on a full 8x11 sheet of paper.  The ink just stops printing.  I have the printer set to print 8x11 paper.  I've rebooted the printer. I have attached 2 docs.  The first is what I am trying to print.  The second is what actually prints. What can I do?sent to printerthis is all that comes out