print cartridge doesn't light up when clicked in

[AstridMueller]

Hi! Just bought a PIXMA iP8720 and two of the ink cartridges that came with the printer have trouble lighting up when I click them in. One lights up after some gentle additional pressing. One doesn't light up at all. 

Will that affect the printing? Or can I ignore the non lighting up part?

How can I GET them all to light up?

Thanks,

[shadowsports]

Greetings,

The LED should be lit when a cartridge is installed.

Please refer to the follwong KB article.

https://support.usa.canon.com/kb/index?page=content&id=ART114510

Cartridges should not be removed once installed (until empty).

No LED - The printer may not work correctly, the LED indicates the cartridge is installed and properly detected.