I regularly download the manual prior to making large purchase, such as appliances, home control systems, etc. Checking out the app itself is good too. For pri

I regularly download the manual prior to making large purchase, such as appliances, home control systems, etc. Checking out the app itself is good too. For printers, I also recommend pricing out five years of supplies. I bought a printer that cost 5x as much as one with similar specs, but ends up costing less in supplies.