Thanks.  I didn't really need the scale: I was using different software to measure and I measured the width and height incorrectly.  The print is about 650x225 pixels in your photo and if the paper is 13 inches tall with about 1/4 inch white space top and bottom, that gives a print of about 12.5 x 35.9 inches.  Pretty close.  So it looks like at some point, you had used a Microsoft/Windows driver that incorrectly allowed print lengths beyond the Canon 26.61 inch spec.  I'm guessing you probably wish you could find/reinstall that old driver but I have no idea how you would obtain Windows "stock" drivers from the past.

Mike

Yeah, as I'm sure you found out, that won't help.  Technically you could create a file but whatever you use to try to print it will have the same limitations because all software (outside of those expensive RIPs) will be bound to the driver.

Mike

I have been following this thread with great interest and really have nothing significant to contribute, but I am curious, did you follow Mike's earlier suggestion and open your automated job log in Qimage?  My job log has every job I have EVER printed, going back over 16 years,  two computers and three printers ago. Yes it takes a half a minute or so to open, but it might at least tell you the answer as to what/how you did this. Just curious.