topic Re: PIXMA GX4200 Product Registration Problem - Printer in Office Printers

MAXIFY GX4020 Product Registration Problem

Chipmeister — Fri, 13 Feb 2026 13:03:51 GMT

Hi all. Trying to get Canon support for an issue with my GX4200 Mega Tank printer. Before I can do that, I have to add the new printer. I tried a few times with the serial number (the correct one), and it kept failing saying it might be an error or it might be a foreign product (it is not). Finally tried once more, only now, it tells me that the serial number is already registered and won't let me go any farther. Cannot get any further. Anyone ever run into this?

Re: Product Registration Problem - Printer

Tiffany — Thu, 12 Feb 2026 04:31:58 GMT

Welcome to the forum!

We're very sorry you're having trouble registering your printer. The serial number should consist of four letters followed by five numbers (example: ABCD12345) This number should be located at the back of the printer Please avoid posting the number portion of your serial number here on the forum to protect your privacy.

If this is a time-sensitive matter, click HERE search our knowledge base or find additional support options HERE.

Re: PIXMA GX4200 Product Registration Problem - Printer

Chipmeister — Thu, 12 Feb 2026 05:35:24 GMT

Thanks. Yes, I have the serial number. But as I said, the system wouldn't accept it with 4 trys. On the 5th, it now says that serial number is already registered. But my printer does not show up.

Re: PIXMA GX4200 Product Registration Problem - Printer

Danny — Thu, 12 Feb 2026 14:56:37 GMT

If your printer's model number isn't showing up, you might want to double check to make sure it's right. To date, Canon hasn't produced a printer with the name "GX4200" but we have made printers with the model numbers PIXMA G4200 and MAXIFY GX4020. On both of these models, the model number should appear on the front of the unit at the upper right.

Hope this info helps!

Re: PIXMA GX4200 Product Registration Problem - Printer

Chipmeister — Fri, 13 Feb 2026 05:48:21 GMT

Thanks. Actually, it's a GX4020. But for some reason, my computer's printer properties shows as GX4200. I'll give it another try in the morning.