Canon MG7700 Series Online Manual page 168

C: Photo paper (4" x 6" (10 x 15 cm) or 5" x 7" (13 x 18 cm) size)
Loading Large Size Photo Paper / Plain Paper or Envelopes in the cassette
2
When using large size photo paper or plain paper, such as A4, B5, A5, or Letter, load it in the cassette 2.
You can also load envelopes in the cassette 2.
The machine feeds paper from the cassette 2 automatically if you select a page size such as A4, B5, A5,
or Letter in the print settings at the operation panel or the printer driver.
D: Photo paper (A4, 8" x 10" (20 x 25 cm), or Letter size)
E: Plain paper (A4, B5, A5, Letter, or Legal size)
F: Envelopes
Loading Paper with the Print Side Facing Down
If paper has print side (front or back), such as photo paper, load it with the whiter side (or glossy side)
facing down.
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