Canon PIXMA iP4820 On-Screen Manual - Page 339

Attaching/Removing the Disc Tray 1. Pull out the Disc Tray. Page 339 of 468 pages 2. Close the Inner Cover. Important If the Inner Cover is opened, you cannot print on paper as it will not feed properly. Make sure that the Inner Cover is closed. 3. Remove the printable disc from the Disc Tray. Important Do not touch the printing surface when removing the disc from the Disc Tray. Note Dry the printing surface sufficiently before removing the disc. If you see printing on the Disc Tray or the transparent parts on inner or outer diameter of the printable disc, wipe them off after the printing surface has dried. 4.72 inches / 12 cm printable disc: 1. Remove the printable disc from the Disc Tray.