My dad’s big fancy Cannon photo printer has caused him nothing but grief. He swears up and down he needs to be able to print large-format full color photographs, but I have never seen him do so. What I have seen is his black cartridge dry out between uses and fail when he needs to print a form.
My wife is occasionally frustrated by our inability to print color, but I am more than happy to drive to Walgreens or my companies office to print a color item once every couple months. An inkjets ink would’ve dried between prints.
Once a new cartridge failed ("not recognized" error even though it was purchased through Staples) and the brother support person walked me through some secret squirrel reset code which I of course saved for future use. The fact I could get someone from the company on the line to help me was a rare experience for tech companies.
My only gripe with the toner cartridges is the requirement to enter a serial number to get a recycling mailing label. The serial numbers are miniscule.
I recently used an online photo printing service for the first time.
It was awesome.
To persuade your dad, maybe send him a print (directly from some service).
No colour printing, but who cares. We do the same thing as you. When we want some photos printed (usually for distribution to family), it's no major hassle to get them printed at the local office supply.
I have the Brother MFC-L5800DW and it's predecessor (~$450). Both are amazing.
I stepped up to this price range because models at this price point have a USB slot in front so you can directly scan to a thumb drive, or print from a thumb drive.
Both have an extremely powerful scanning function e.g., scan to an SMTP server, local FTP server etc etc.
These are the Dewalt of printers e.g., full native Postscript, native LPR daemon the device etc.
Works excellently with iOS's CUPS too.