Melanie ..
Aug 24, 2010 - PIXMA MP495 Wireless Assistance. Wireless printing requires a working network with wireless. View available Drivers & Software. The Installation Steps-by-Steps: Switch ON your devices, both Canon PIXMA MP495 and your computer. Pair the Canon PIXMA MP495 USB cable and your computer. Setup file of Canon PIXMA MP495 should be extracted which file you can find through TEMP folder. Hit start, then Control Panel, and locate.
You're right. There is not High Sierra v10.13.x driver available for download from their website > https://www.usa.canon.com/internet/portal/us/home/support/details/printers/suppo rt-inkjet-printer/mp-series/pixma-mp495?subtab=downloads-drivers
You might try contact Canon support > Contact Us
'My laptop can't find the wireless printer (and yes, the printer is turned on'
You're sure you have entered the correct Wi-Fi password on the printer?
If not, there's an online manual available here > PIXMA MP495
May 11, 2018 10:19 AM