topic Re: Can't register PIXMA TR4720 in Desktop Inkjet Printers

Can't register PIXMA TR4720

Handlg01 — Wed, 19 Nov 2025 19:49:31 GMT

I get this message: and the SN is correct, I verified it's correct on the outside and in the software

The serial number you have entered is invalid for one or more of the following reasons:

1) The serial number does not match the product you have selected (FCC ID which starts with "AZD" is often mistaken for serial number.)
2) The serial number entered indicates this product was not intended for sale in the United States and is ineligible for registration and support in the U.S.

Please verify your product model and serial number to ensure they were entered correctly.

Re: Can't register PIXMA TR4720

shadowsports — Wed, 19 Nov 2025 20:03:12 GMT

Greetings,

I suspect it might be #2.

Where did you purchase your printer from?

Was it purchased from a Canon Authorized Dealer?

Re: Can't register PIXMA TR4720

Handlg01 — Thu, 20 Nov 2025 00:03:34 GMT

Canon store via Amazon so it should be a US sold printer

Re: Can't register PIXMA TR4720

shadowsports — Thu, 20 Nov 2025 02:21:53 GMT

Greetings ,

Check your purchase closely.

Canon does not operate a store on Amazon. Amazon creates these storefronts for large volume vendors. While Amazon itself is an authorized dealer, many of the storefronts are populated with marketplace sellers who unfortunately sell grey market items. If it says ships from and sold by Amazon, it should be a US product. If you find that you purchased from a marketplace seller, I'd contact them and request a return.

Re: Can't register PIXMA TR4720

Danny — Thu, 20 Nov 2025 14:30:45 GMT

Hi, Handlg01! We can check whether your printer was intended for sale in the United States. Please let us know the letter portion only of your printer's serial number (don't provide the number portion as it can compromise privacy) and we can look it up. The serial number should consist of four letters followed by five numbers, like ABCD12345.

We look forward to your reply!

Re: Can't register PIXMA TR4720

Handlg01 — Thu, 20 Nov 2025 15:07:23 GMT

KNKW..... is the serial number letters

Re: Can't register PIXMA TR4720

Danny — Thu, 20 Nov 2025 15:11:49 GMT

Thanks! That letter combination corresponds to the PIXMA TR4720 intended specifically for sale in Canada. Because it has a Canadian serial number, it won't be recognized by Canon USA's web site. If you live in the United States, we recommend contacting your dealer and letting them know that you got a printer meant for sale in another country. They should be able to assist you.

Hope this helps!

Re: Can't register PIXMA TR4720

DerrickL — Thu, 20 Nov 2025 15:38:41 GMT

Possibly you can create a Canon Canandian customer account and register your printer:

https://shop.canon.ca/en_ca/customer/account/create

Re: Can't register PIXMA TR4720

Ranger83 — Fri, 21 Nov 2025 19:17:20 GMT

Bought at Best Buy Chattanooga, TN a year or so ago, and it is TR4720 like the one that came up . My name is Gilbert Brown, serial # is KNUR[xxxxx]

[Serial number partially hidden to protect privacy.]

Re: Can't register PIXMA TR4720

Ranger83 — Fri, 21 Nov 2025 18:23:29 GMT

I have to take my wife to get a pc scan be back in a little while my phone is [Removed personal info per Community Guidelines]

Re: Can't register PIXMA TR4720

Ranger83 — Fri, 21 Nov 2025 19:15:48 GMT

is someone still there

Re: Can't register PIXMA TR4720

Ranger83 — Fri, 21 Nov 2025 19:20:48 GMT

OK Gilbert Brown here my printer is TR4720 Serial number is KNUR[xxxxx]

[Serial number partially hidden to protect privacy.]

Re: Can't register PIXMA TR4720

Danny — Fri, 21 Nov 2025 19:21:44 GMT

Thanks for joining the conversation, Gilbert!

Are you also having trouble registering your printer, or are you encountering a different problem?

This community is designed for your fellow Canon owners to help each other out with any problems they may encounter. If this is a time-sensitive matter, click HERE search our knowledge base or register your Canon gear HERE to access additional support options.

Thanks and have a great day!

Re: Can't register PIXMA TR4720

Ranger83 — Fri, 21 Nov 2025 19:23:33 GMT

Gilbert Brown, my printer is a TR4720 serial # is KNUR[xxxxx]

[Serial number partially hidden to protect privacy.]

Re: Can't register PIXMA TR4720

Ranger83 — Fri, 21 Nov 2025 19:25:26 GMT

serial # isKNUR[xxxxx] TR4720 about a year old however never used

[Serial number partially hidden to protect privacy.]

Re: Can't register PIXMA TR4720

Danny — Fri, 21 Nov 2025 19:24:40 GMT

How can we help you, Gilbert?

And could you do us a favor and please stop sharing information that could compromise your privacy, such as your phone number and your serial number? Thanks!

Re: Can't register PIXMA TR4720

Ranger83 — Fri, 21 Nov 2025 19:27:44 GMT

Best buy Chattanooga, TN about a year ago had so much trouble set i up I am 82 ans i just quick trying and now having all kind of trouble most likely my fault

Re: Can't register PIXMA TR4720

Danny — Fri, 21 Nov 2025 19:30:16 GMT

Thanks so much for the info, Gilbert! If you need help getting your printer set up, it might be easiest to simply give our PIXMA support team a call. You can reach them Monday through Friday at 1-800-OK-CANON (1-800-652-2666). They'll be glad to walk you through the set up and help you with anything that might come up.

We look forward to your call!

Re: Can't register PIXMA TR4720

Ranger83 — Fri, 21 Nov 2025 19:42:26 GMT

The4 serial is correct, i have read it 5 times TR4729 canon printer

Re: Can't register PIXMA TR4720

Danny — Fri, 21 Nov 2025 19:46:57 GMT

And it has matched each time you've typed it. Please make sure you get the model number right as your printer is the PIXMA TR4720. When you call and our automated operator asks you to state your model number, say it as "PIXMA T-R Forty-Seven Twenty." Our computer likes it when you say it that way. 😊