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Pixma MG7720 ink lamp won't light up with Canon ink cartridge


On my MG7720, I got error 1660 for not recognizing an ink cartridge. I re-installed the (official Canon brand) ink cartridge and noticed the ink lamp doesn't come on when it's fully installed (it clicked in and all). Anyone know what the problem is? Is it the carriage? It's done this with multiple cartridges. Does anyone sell replacement carriages / how much do those cost / are they difficult to replace?

It seems to me like the two left pins (of the five) on the PGBLK aren't pushed down enough. If I put a lot more pressure on it, the lamp does light briefly. Makes me think it's the carriage.IMG-2797.jpg



Product Expert
Product Expert

Hi Nieb626,

The pins should retract when the ink tank is inserted.  Because they are not, it would appear that your PIXMA MG7720 would require service.  If your PIXMA MG7720 was purchased less than a year ago, please contact one of Canon's Technical Support Representatives via phone or chat to obtain your in warranty options. To contact a Technical Support Representative, please use the link below:

If your PIXMA MG7720 is out of warranty, you are eligible for Canon's Upgrade Program. This is for out of warranty units which have been diagnosed to require service, or for some reason are incompatible with a new or upgraded system. This option allows you a one-time opportunity to purchase a replacement product, discounted from the list price.

To help you get up and running quickly, we also offer free standard shipping (if the order is completed by 12:30PM ET). If you would like to take part in this option, please call our Sales Department at (866) 443-8002 seven days a week, 8am to Midnight. Let them know you have been working with technical support and the Canon Upgrade Program was offered.

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