Canon G4000 series Online Manual page 506

3. Check if jammed paper is under cartridge holder.
If the jammed paper is under the cartridge holder, move the cartridge holder to the far right or left,
whichever makes it easier to remove the paper.
When moving the cartridge holder, hold the top of the cartridge holder and slide it slowly to the far right
or left.
4. Hold jammed paper firmly in both hands.
If the paper is rolled up, pull out it.
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