How's it going.Let me read of your question. Give me a minute.
Can you give me the serial number of the printer please?
On your Canon printer, the cartridge holder will not move into the centre. Additionally, if you go to print, a message appears on the computer or printer display indicating Error 5011. It advises to turn your printer off and on again which doesn’t resolve the problem.
Get the printer repaired by the provider or manufacturer.
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The error above is a hard-ware error that canon will only fix. I am sorry. :\
Here is a video
which shows how to repair your printer
I know that it is not the same model, but it still shows the amount of work involved in disassembling your printer and the action taken to solve the problem. Unless you are prepared to disassemble your printer and perform the necessary cleaning tasks, you should take the advice of the previous expert and have your printer repaired or replaced.