Canon PIXMA MP490 Series Getting Started page 22

Maintenance
After a period of use, the inside of the machine may become stained with ink. To avoid staining your hands or clothes with ink, it is recommended that you clean
the Ink Cartridge Locking Cover (A) and the inside of the tray (B) with a facial tissue or the like as required.
If the Scanning Unit (Cover) is left open for more than 10 minutes, the FINE Cartridge Holder moves to the right automatically.
A
B
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