macOS Sequoia 15.1 update printer problem

I was having problems with a Canon TS9560 and TS9565 models. The print dialogue box could "see" both printers, but when I selected either I'd get the message "Unable to communicate with the printer at this time due to an error" (very helpful NOT). My husband on the other hand could print to both. Tried lots of things, but in the end just re-connecting to the wi-fi worked a treat and back to printing.

I was looking to update the drivers - I couldn't see what driver I had on the computer (I had removed the printer and couldn't reconnect, and you have to be connected to see that info). by I can see i have the Canon TS9500 series-AirPrint v4.0. Was also looking at the printer firmware. I found an update to version 1.020 (https://www.canon.com.au/support/sims-content?pid=9b411a6de83f445a88dad8843c70f91a&cid=19AB9E152AB34BFCA3C5E5BBB2230DD7&ctype=fa) but the printer system information notes the current version is 1.090 ... go figure. Anyway, hope this may help someone - try reconnecting the printer to the wifi.

Brilliant!!! Turning on rastertoescpll (whatever it is) in Security/Local networks got my printer working. Many thanks.

Hi

This worked for me

Back up computer.

Reinstall the OS see guidance here How to reinstall macOS – Apple Support (UK)

The Reinstall does not affect your personal data (but if it did you have the backup)

Bingo - back to normal.

My uneducated guess is that 15.1.1 turns something off during the upgrade and does not turn it back on again. Reloading the OS turns everything on again as the OS is loaded from scratch.

Spock

Remove the add-on anti-malware, and use the built-in anti-malware. Test again.

If that resolves this, send your bug report to the add-on anti-malware support organization.

Krankywitch wrote:

Done all that.

According to a Mac expert neighbour, the printer is the problem. Canon are not providing any driver updates for the older models. Like every other tech co, they stop supporting old stuff to force us to buy new.

Looks like I have to buy a new printer

Shame. I really like the one I've got

Vendors drop support for old drivers and thus for old printers, yes.

Some vendors have unique printers and unique drivers, while others use more common firmware and printing protocols, which means drivers can support many different printer models.

Some vendors make their printers exceedingly inexpensive, and move ~all of the print-related processing from the printer into the host and particularly the vendor’s host drivers. These (GDI/Winprinter) printers are entirely dependent on the vendor drivers.

That’s also why AirPrint and IPP/IPPS support are a recurring theme mentioned around here. TWAIN support for scanners, too. These avoid needing vendor drivers for many common functions.

Check the printer specs for whatever printer, and see what is offered.

And if you do decide to replace: Which Printer Should I Buy? - Apple Community

as per my earlier post, i don't know what Canon printer you may have but the "cannot connect due to an error" issue was fixed for me simply by reconnecting the printer (manually) to the wifi. Good luck!

I was pulling my hair out over this last night - firmware on printer, check. MacOS updated, check. Can print find from my Windows devices, check. It was late so I fired off the MacOS recovery, woke up this morning, and now printing seems to be passing its tests.

Thank you for this! Got onto Apple Support and problem solved. Only needed to do the software updates for this Mac Mini! Crazy--the computer is new to me and had software updates "on". Oh well, just glad to have the printer connected and working.

This is the best advice _ checked System Settings/Privacy & Security/Local Network for anything that might need enabling - there was only the Epson Updater and Epson Updater Agent and they were already enabled.

One of the Epson Rasteroescpll was off and was stopping me printing - I turned it on and it worked.

You will geta pop up and you need to allow it

hkdragonfly wrote:

Turned off the firewall - didn't help at all.

Please post the printer vendor name, and the full and complete printer model name, and somebody here can then look at the options for getting it to work.

I recently got an Mac Mini M2 Pro (Sequoia 15.1) and was having problems connecting my Epson WorkForce Pro WF 4830. Tried wired. Nothing worked. Called Epson. They sent me a link to the driver for Mac OS 15. Didn't work. Called Epson again and worked with them for a long while. Finally Epson told me to contact Apple! I've downloaded the printer driver, checked Privacy/Security etc. It will won't let me add the printer because there is no driver software recognized. Somehow the driver Epson is giving me is not going to the Mac "Add Printer".

We had the same issue. So we connected a Lan cord into the back of the internet and downloaded the 15x software and it had seem to work and printer is restored

After downloading Mac OS Sequoia 15.1, My Apple Computer won't connect to my HP Office jet Pro 6970 printer. How can I fix the problem? It worked fine before I updated the new Mac OS Sequoia 15.1 software.

Wallace Watts

I have the same problem on my Canon Pixma TS 6000 series. After updating to 15.1 the scanner is no longer detected and I have the message "failed to open a connection to the device (-21345)". Hope that someone will also provide a fix for Canon...