Canon imageRUNNER ADVANCE C3330 Series Service Manual page 1082

5.
CAUTION:
Points to Note at Installation
Be sure to install it by using the holes with the marks C, F, I, L and O.
CAUTION:
Be sure to install the Utility Tray Mounting Plate where it does not cover the USB Slot.
Q R
5x
TP;
M4x8
A B C D E
S
F G H I J K
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9. Installation
L M N O P