imagePROGRAF PRO-4600 306A Communication Error Mac

dakotakid — Tue, 01 Jul 2025 14:30:11 GMT

I was stumped by this. New ProGraf 4600 suddenly stopped printing from Lightroom. I was sending a large print 44 x 52 to a roll 44" wide as a proof. It would go through the motions of printing -- the file would show up in the printer queue, and then I'd get a "the printer is not responding" error. The printer never started the job. Tried the job from Photoshop as well -- same result. I had previously run prints from Lightroom successfully -- this was a new development.

I ran a status print from the LCD. That printed fine, all across the roll, which is a nice feature, since it wastes less paper. Ok, the printer hardware is working.

From the Printers/Faxes panel, the computer sees the printer and is able to retrieve Ink Supply status. Using the Printer Utility, I tried updating the Media Settings, and got a 306A Communication Error.

I rebooted the router. The printer retained the same IP4 address. I rebooted the printer, and tried printing again. Same "printer not responding" error in the print queue.

What finally fixed it for me was removing the printer and reinstalling it. I am using an IP address, not Bonjour. It doesn't immediately show up in the choices, so I added it manually using the IP and Subnet mask addresses it had before.

This time when I went to update the media settings, it saw the printer, and did some housekeeping. Opening up Lightroom again and sending the print the printer was successful.

TL;DR -- Reinstall the driver, check the IP settings, reboot the router and the printing application for a 306A error.

Posting this because I could not find anything comparable doing a search of the interwebz. Hope someone finds it helpful.

Re: PROGRAF 4600 306A Communication Error Mac

Danny — Tue, 01 Jul 2025 14:06:59 GMT

Thanks for joining the conversation, dakotakid!

So that the Community can help you better, we need to know exactly which Canon printer model you're using. We've made two different imagePROGRAF models with the number 4600 in their name, so please let us know whether you have the imagePROGRAF PRO-4600 or the imagePROGRAF GP-4600S. 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!

Re: PROGRAF 4600 306A Communication Error Mac

dakotakid — Tue, 01 Jul 2025 14:09:54 GMT

This is the PROGRAF PRO-4600, with 11 inks and optimizer.

topic imagePROGRAF PRO-4600 306A Communication Error Mac in Production Printing

imagePROGRAF PRO-4600 306A Communication Error Mac

Re: PROGRAF 4600 306A Communication Error Mac

Re: PROGRAF 4600 306A Communication Error Mac