I have downloaded the drivers from Canon web site so they should be okay. I have deleted the drivers and reinstalled them a couple of times, also reset printing on the Mac, but still no luck with photos.I have the Canon ip8750 printer it prints from both LR and PS, I seem to remember having to download software from Canon's web site when first installing the printer.
I have it connected to a USB port, not sure how to get it connected by WI-FI now.Not had any problem with mine printing from LR.
Just connected it up with Wi-Fi via the WPS button on my router and away it went.
I have downloaded the drivers from Canon web site so they should be okay. I have deleted the drivers and reinstalled them a couple of times, also reset printing on the Mac, but still no luck with photos.
I have it connected to a USB port, not sure how to get it connected by WI-FI now.
I have it connected to a USB port, not sure how to get it connected by WI-FI now.
Yes the printers in the drop down menu, I have tried restarting the computer then plugging the printer in before opening LR.I don't have this printer, but I have a Mac and a Canon printer (Pro 1). If you are able to print text from another program - say Preview or Pages, then it sounds like it is the link to Lightroom and Photoshop that is the issue.
When you go into the Lightroom print module and select Printer, is it available in the drop down menu? If not, have you tried restarting your computer and then plugging the printer in before you open Lightroom?
@swiftflo I think printing from USB is much more reliable than using Wi-fi, so I'd definitely try it wired first.
Yes it is showing as the default printer in System preferences etc.USB option is fine, actually probably more reliable - is it showing as the default printer in System Preferences > Printers & Scanners?
It says Canon IP 8750.Does the Photoshop printer set up say Canon ip8750 series or ip8750 series WS?

Thanks done all that twice.That is strange. I had a quick google - which you have probably already done. Of note, is recreating the instance of the printer, and also possibly checking the preferences in Photoshop - I'll include screenshot here from the link below it
View attachment 332778
https://helpx.adobe.com/be_en/photoshop/kb/troubleshoot-printing-problems.html