I would compare both rear wheels to see what is visually different to cause this on the one side. Is the frame lower on the one side and not the other? Might it be that a spring or shock needs replacing on the one side so there is less clearance between the frame and the wheel/tire?
Batteries? I use rechargeable batteries. My Sony Cyber-shot (inexpensive early model) did that when the batteries were wearing down. I hate to state the obvious in making sure it is not the batteries, but for myself, I have found that the simplest thing is usually the answer. Good thing too because taking things apart is my last resort.
You need to cancel the print job through the printers and devices on your PC (windows) or at the very least unplug your printer to try to cancel the printjob. Another option if you have Windows, is to right click on the bottom picture of the printer and you can get to the options of cancelling the print job. Start from scratch and try the print job again (keep it simple and only tell it to print one page at first).
I've also taken photos while the belt is still intact. Once the thing breaks it will be harder to follow the diagram in the manual and also on the tractor underside. That is literally the only thing I have not had to replace with my 8 year old Craftsman. Youtube and repairclinic.com videos have shown me how to fix things nearly every time. Thanks Sid. I'm going to copy/paste your answer for future reference. With my luck, it is bound to happen sometime soon.
Sounds like maybe changing fuel and air filters might work. I check mine twice each season and change all at least once a season. If the air filters are clogged or the fuel filter not getting enough fuel through to engine, that would stall the engine when the moving blades make the engine work harder. Is there fuel visible in the fuel filter? I guessed the fuel was not getting through properly and once changed to a new one, problem was solved.
If the belt is not on the right way, it will shred or even break. Belts have a flat and a curved side and they need to be threaded past the pulleys in the right way. After I got my Craftsman lawn tractor it broke in 2 years, now it has been 4 and in good condition. I think they wear after using a few seasons and loosen up which then make it wear faster.
I'm not quite sure what you mean by the shift lever ... does that control the speed of the mower or is it to make the blades work? I wonder if it is your clutch cable? My spring broke that engages the blades. It is a long cable that goes from the lever to engage the blades down to the deck. The handle to engage the blades will not have any tension, it is just loose. See if the spring is hooked up properly on the deck, it might have broken but looks like it is still all attached. The videos on youtube and also repairclinic.com show how to replace them.