Lexmark C746 User Manual page 210

Clearing jams
e
Pull and then rotate the green rectangular knob clockwise to unlock the top paper guide.
f
Press the green arrow tab to the left, and then lift the top paper guide.
g
Firmly grasp the jammed paper on each side, and then gently pull it out.
Note: Make sure all paper fragments are removed.
h
Close the top paper guide. Make sure both sides of the paper guide are firmly seated.
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