Canon PIXMA MG3660 Online Manual page 122

Note
• Do not overload envelopes by stacking until the top of the stack touches the paper guides.
6. Open the output tray extension.
7. Open the paper output tray (F) gently, then extend the paper output support (G).
Important
• Be sure to open the paper output tray when printing. If not open, the machine cannot start printing.
Note
• When printing, select the size and type of the loaded envelopes on the print settings screen of the
printer driver.
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