Canon LBP3360 User Manual page 133

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4
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4-50 2-sided Printing
Open the duplex unit cover.
Holding the opening at the center of the duplex unit cover, open it gently.
Set the blue paper size switch lever (A) to the appropriate
position according to the paper size for 2-sided printing.
For A4 size, draw the paper size switch lever toward you.
For Letter or Legal size, push the paper size switch lever into the printer.
(A)
(A)