Canon IMAGEFORMULA CR-190I Instructions Manual page 39

Press and hold the START Button.
The jammed document is ejected into the Eject Pocket.
If the above procedure does not clear the paper jam, perform the
following to remove the jammed document.
Pull the Open Button, and pull the Front Maintenance Cover
open to the right and left.
Press the Open Button, and push the Back Maintenance
Cover open to the back.
Remove the paper that has jammed.
Close the Back Maintenance Cover.
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