Thank you for trying to help. The only plastic lever I could find is one that adjusts the input for printing envelopes, and it was intact. While searching for the lever, I discovered that the machine is opening, and leaving open, the spring loaded back of the input tray during the routine it goes through in preparation for printing. I manually closed it and thought I had found the problem. But when I do that, instead of telling me I'm out of paper, it tells me the paper is the wrong size. So I still have a problem and I'm still working on it.