Duplex printing on Epson ET-4750 not working after upgrade to Big Sur.

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Level 1

13 points

Duplex printing on Epson ET-4750 not working after upgrade to Big Sur.

Since upgrading my system to Big Sur on my 2017 iMac, I can no longer print on both sides of the paper using my Epson ET-4750 printer. The printer is connected via wi-fi and has worked flawlessly up until now. No matter the application I use—Papers, Affinity Publisher, Skim, etc.—my printer only prints on one side of the paper. I know that I have set the printer parameters correctly, as I use presets. Printer drivers and software are up to date. Apparently [as far as I can tell] Epson does not have a support network, so I cannot submit anything to them.

Any suggestions/advice would be most greatly appreciated!

iMac 21.5″ 4K, macOS 11.1

Posted on Dec 30, 2020 4:40 AM

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Answer 1

Dec 30, 2020 5:38 AM in response to prider57

Your ET-4750 is supported by the built-in Apple AirPrint, which requires no driver or supporting software from Epson. With the device powered and networked, visit System Preferences : Printers & Scanners and right-click on the printer entry, choosing Reset printing system… . When you re-add the device, choose AirPrint instead of the Epson drivers. Print something in duplex.

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Answer 2

Dec 30, 2020 6:10 AM in response to prider57

This is a wag, but power off the printer. Reboot, and then power on the printer again. Because you are using AirPrint, and not Epson's drivers, you may need to revisit your printer settings (again) to ensure that duplex is enabled.

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Answer 3

prider57 Author

Level 1

13 points

Dec 30, 2020 6:14 AM in response to prider57

Ok. This is weird. On a whim, I connected the printer via USB and it duplexed just fine! Any thought about this? Thanks for your assistance.

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Answer 4

prider57 Author

Level 1

13 points

Dec 30, 2020 6:02 AM in response to VikingOSX

Sadly, this did not work. I cannot imagine what is going on. Just last Saturday, before my Big Sur upgrade, my printer whizzed through several print jobs using duplex.

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Answer 5

Dec 30, 2020 6:28 AM in response to prider57

AirPrint does not support USB unless through an AirPrint supported print server, so two of us are now perplexed.

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Answer 6

prider57 Author

Level 1

13 points

Dec 30, 2020 7:19 AM in response to VikingOSX

Oh my! Let's see if someone else adds to the convo. I'll shut down things again tonight and see how it goes in the morning.

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Duplex printing on Epson ET-4750 not working after upgrade to Big Sur.

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