topic Re: Ink cartridge not recognized in Desktop Inkjet Printers

PIXMA MG7720 - Ink cartridge not recognized

marcellcolon — Fri, 31 Jan 2025 19:26:02 GMT

Hello. I just changed cartridges in a Pixma MG7720. Now the printer displays the support code 1750 (Appropriate ink tank is not installed) for four of the six cartridges. The light on them will not come on since I put them in. They are all OEM and not re-filled. I tried removing and putting back on, switching on and off the machine, even cleaning the print head and nothing. Any light someone might shed on what might be going on? Thank you

Re: Ink cartridge not recognized

Ramona — Tue, 08 Nov 2016 06:39:16 GMT

Hi marcellcolon,

In addition to removing and reseating the ink tanks, please also remove the print head from the printer and then reseat both the print head and ink tanks in the unit by following the steps located here to see if this will resolve the error. If the error continues, we ask that you please contact a Canon technical support representative for further assistance by entering your product name and selecting a support method here. A representative will be happy to assist you free of charge.

Re: Ink cartridge not recognized

JudyPetersen — Sat, 22 Jul 2017 15:31:26 GMT

I just bought a new printer. When I replaced Cyan, I received support code 1750. So I followed the instructions and the cyan cartridge did not light up.

I think that going though the print head routine is a bit unreasonable considering this is a brand new printer.

Re: Ink cartridge not recognized

desynerguy — Tue, 01 Aug 2017 14:41:56 GMT

I tried everything and cant get my conon to recognize the print cartridge. I have a MG5720 and just replaced the heads for the first time and keep getting the 1750 error. Please help

Re: Ink cartridge not recognized

Lindybud — Thu, 21 Sep 2017 17:59:01 GMT

My canon mg7750 is giving me error 1750 with brand new canon cartridges.

Re: Ink cartridge not recognized

Michael — Wed, 22 Nov 2017 15:12:39 GMT

Hello.

Troubleshooting with our support group will be needed to narrow down the cause of your issue. Please contact our support group using the "Contact Us" link below for additional assistance.

This didn't answer your question or issue? Find more help at Contact Us.

Re: Ink cartridge not recognized

MaryU — Tue, 03 Apr 2018 19:57:44 GMT

I had the same 1750 error as others when I put in new ink cartridges. Your response was to remove the printhead and reset it. However, there is no lever on my computer MG7720 to remove the printhead. Everything online speaks of a lifting a grey lever to the right of the cartridges. I have no lever grey or any other color. What can I do? Thank you.

Re: Ink cartridge not recognized

tae111 — Sat, 14 Apr 2018 17:37:41 GMT

That just happened to me today only the tank has been in the printer for awhile and has about 1/3 of it's ink left (c271XL Magenta). It is also a Canon ink tank and not a knockoff. I took it out and put it back in but that didn't work. I replaced it with a new magenta tank and it is now working. As printer ink is one of the most valuable liquids on the planet earth it ticks me off that 1/3 of this tank is now trash. My error code was 1660 though.

Re: Ink cartridge not recognized

mweisse — Sat, 23 Mar 2019 21:48:11 GMT

I have a TS6120, bought October 2018

I just replaced all 5 of the cartridges with brand new Canon PIXMA cartridges, and I get support code 1660: "The following ink tanks cannot be recognized" (all of them).

I reset then 4 times , they all click in normally, but I still cannot print because I keep getting the same message.

What do I do? My first option should not be to throw away this relatively new printer.

Thank you

Re: Ink cartridge not recognized

clifparkbj — Thu, 11 Jun 2020 18:12:55 GMT

Error 1750 on a Pixma mg7720. I have reseated the printhead multiple times and tried everything else I could find on the web. These are new tanks purchased from Staples. I even replaced the old tanks and they are now rejected. I have been to the manual that offers no help at all. The "STOP" button is not active when the error message is present. So do I have to trash over $100 in new tanks and the printer and go back to HP?

Re: Ink cartridge not recognized

Patrick — Fri, 12 Jun 2020 19:39:31 GMT

Hi clifparkbj,

The 1750 error indicates "Printing cannot be executed because the ink tank is not compatible with this machine".

In your message you stated that you purchased new ink tanks from Staples.

Are you using genuine Canon ink tanks in your PIXMA MG7720? 3rd party ink tanks can cause this error to occur.

Please replace the ink tanks in your PIXMA MG7720 with genuine Canon ink tanks.

Re: Ink cartridge not recognized

clifparkbj — Fri, 12 Jun 2020 20:01:08 GMT

Yes, the same Canon tanks purchased from Staples for the last 3 years.

Re: Ink cartridge not recognized

ArthurJ — Mon, 15 Jun 2020 18:38:42 GMT

Hi clifparkbj,

Since you are using Canon ink and resetting the print head did not work, the printer has experienced an internal hardware issue.

You do qualify for the Canon Upgrade program. This is for out of warranty units which have been diagnosed to require service or are incompatible with a new or upgraded system. This program allows you the opportunity to purchase a replacement product discounted from the list price. Free ground shipping is included with your purchase.

If you would like to take advantage of this offer, please call our Sales Department at (866) 443-8002 mon-Sat, 9 AM to 9pm EST. Let them know you have been working with technical support and that the Canon Upgrade Program was offered.

Re: Ink cartridge not recognized

DukeHazzard — Tue, 23 Jun 2020 04:46:38 GMT

It is illegal for printer manufacturers to specifically prevent the use of thrid party or refilled in cartridges (SCOTUS: Impression Products, Inc. vs. Lexmark International, Inc.). If Canon has blocked their use and cannot provide a workaround for our legally purchased and correctly installed third party products we need to first report the problem to the Federal Trade Commission (FTC.gov) and in parallel take to social media and industry chat boards to let people know that the ethical standards at Canon allow them to boost sales by violating trade laws.

Re: Ink cartridge not recognized

DukeHazzard — Tue, 23 Jun 2020 16:58:00 GMT

How can I use my third party ink cartridges? They worked fine in my last Canon printer which failed due to an unknown hardware error, I bought another thinking I could use the same ink and this one will not recognize them.

Re: Ink cartridge not recognized

hyperjetlag — Tue, 17 Aug 2021 18:17:10 GMT

I have a Canon TS6120 and the Canon-made magenta "ink tank" is not recognised, support code 1660.

I have removed the cartirdges, and then removed the printhead and cleaned it, put it back in - and it did not fix the problem.

I have turned the machine off and on and unplugged etc.

I would appreciate any other ideas.

Re: Ink cartridge not recognized

damosher6 — Fri, 31 Jan 2025 01:50:25 GMT

OMG!! Don't go back to HP !! Just trashed an HP because HP stopped supporting it. (Not an old machine, either). Please don't jump back into a world of s__t ! also, my brother lives in Clifton park.