Canon MG6600 series Online Manual page 158

5. Slide the right paper guide (A) to align the paper guides with both sides of the envelopes.
Do not slide the paper guides too hard against the envelopes. The envelopes may not be fed properly.
Note
• Do not load envelopes higher than the load limit mark (D).
• Keep the envelope stack height below the tabs (E) of the paper guides.
6. Holding the right tab on the front cover, push the cassette back until the arrow (
front cover is aligned with the arrow (
After pushing the cassette back, the paper information registration screen is displayed on the touch screen.
) on the machine.
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) on the