Have canon mf5700 says check paper size and only prints one page of several page job

If your alarm light is flashing and your printer will not print, press the "copy" button to get the device into the copy mode, once the copy button light is on, press the "Status Monitor" button. The LED panel will then show two lines of words: Line 1 "COPY STATUS" and Line 2 "SELECT JOB TO CANCEL"; then hit the Set button and the screen will show you what print job which has jammed the printer and you then press the - (Minus) button to clear the job. Open and close the front panel and the printer should reset and the warning light go off.
I had trouble locating the problem because my machine tends to stay on the Fax mode and when I pushed the Status Monitor button I would only get information about fax jobs.
Hope you have already figured out the problem. I thought I had better tell someone so I will remember the next time I try to print a job which requires a different size paper than what I have in my printer.
Blessings!
tdocdaws

After dealing with this for HOURS yesterday, I finally unplugged my Canon MF5700 and took the paper tray out. I left it like that overnight last night. Reinserted paper tray today (using my normal letter size paper) and plugged back in, and it works!! It somehow cleared out the problem. So I wanted to post, since I couldn't find a darn thing on line about this yesterday. I know it sounds simple, but it just worked for me.

(p.s. The only step I left out, is that I had to glue a piece back on to my paper tray that I broke off in my fit of rage over this problem yesterday!!!!!!)

The only way I have found to reset the printer is to unplug it. You do not need to remove paper tray or leave it off for any period of time. You must, however, turn it off and the only way I have found to do this is to unplug. You must clear the print/copy job as described in the previous post before unplugging or you will have the same problem when power is restored - the printer will attempt to continue with the current job list which will not be erased by powering down.

All you have to do is open the front cover for about 10 seconds and this resets it. We have multiple people in our office that use this machine & mess it up all the time. Opening the front cover for about 10 seconds works!

Also, make sure that the paper size in the document's paper settings aren't set to a different size than the one in the printer settings.

Unable to clear the store with this error showing!.. There were no jobs to clear.
Well, if you unplug the power and allow the unit to discharge,(maybe overnight), the error situation clears.

I had the same problem and i found out, that the problem does not occur when I just print another document. I think the problem can be solved when the content of the document is copy/pasted to a new file. The contradiction of paper size between computer and printer is probably within the document.

I had the same problem here is what I think caused it and here is how I fixed it:
cause: first time i sent the file i wanted to print i sent it set for standard letterhead, when the printer was loaded with only A4 size paper.

Solution: I cleared everything of my computer's print list, and tried to also cancel on the printer itself. When i retried it still did the same thing. So, I cancelled everything again, made sure all the default sizes on the printer itself were set to a4, made sure all the settings on my document, and my printer software were set for a4, then I left the front cover open for about 10 seconds (as suggest above), and bingo!