MF644cdw - Shows Offline from MAC

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11-29-2020 06:40 PM
I have been struggling to get this printer to work consistently on my network from my MACs. Most of the times when I try to print, I get an error.
Opening the Settings --> Printers and Scanners --> Canon 644c,
The banner says that the printer is offline.
Under the print job I get the message Priner - Unable to find printer
- The printer is on
- The printer is close to the wifi router
- I am using a reserved ip address for the printer (so that I have the same ip each time)
- I can access the printer from the browser using the ip address
- I was able to print from a moblie phone
- I can scan from the Canon Print Business mobile app
- I have installed the latest drivers from the support site on the PCs
- I have tried to use the Airprint driver as well as the Canon Support site drivers
None of the macs can consistently print using the print function.
Anyone else face the same problem?

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04-16-2021 08:03 AM
I have the same issue. Two days ago the MF644Cdw printer was fine. Yesterday we lost power a few times and after that the printer was offline.
The printer sits right over the router and is connected by a cable.
It is connected to my Macbook Air wirelessly.
I reset the router with no luck.
I have turned the printer off and on with no luck.
Could this be a toner issue? I get a message that toner is low, although the printing quality has not gotten worse.
I will next try to reinstall the drivers.
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04-16-2021 08:23 AM
Hi, Gnome1!
So that the Community can help you better, we need to know exactly which version of macOS is running on your computer. That, and any other details you'd like to give will help the Community better understand your issue!
If this is a time-sensitive matter, click HERE search our knowledge base or find additional support options HERE.
Thanks and have a great day!

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04-16-2021 08:25 AM
Thank you! I am running Big Sur 11.2.3 on my MacBook Air.

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04-16-2021 08:33 AM
Is the IP address to the printer dynamically assigned? If so, it probably changed with the power glitch when the router rebooted. To avoid this in the future, set the address to be static in the router configuration page.

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04-16-2021 08:39 AM - edited 04-16-2021 08:43 AM
I found the IP address but don't know how it's assigned. Please advise.
Also, I went to the Canon page and downloaded the latest drivers that work with Big Sur 11.0, but I'm not sure how to get the printer to access them.

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04-16-2021 08:51 AM

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04-16-2021 09:19 AM
Thanks for the suggestions!

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04-16-2021 10:21 AM

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04-16-2021 10:34 AM
Yup - I think its specific to the Mac driver. Setting the IP address as static was my -working- solution.

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04-18-2021 09:53 PM
Well, after all this, I deleted and reinstalled the printer, and it worked. So I learned I could do that without the computer "forgetting" the printer. Thanks everyone for all the suggestions!
