CANON MAXIFY IB4020 Manual. View the CANON MAXIFY IB4020 manual. CANON MAXIFY iB4020 manual for the CANON MAXIFY iB4020 printer. The builtin wireless features will automatically connect to your tablet and smartphone, hispeed USB, WiFi, Mobile Device Printing, Google Cloud Print. The CANON MAXIFY iB4020 offers print speeds of up to 23 Black15 Color images per minute with 7 second quick first print, and features a 500 sheet paper tray capacity. View the CANON MAXIFY iB4020 operator manual to learn more about the product and features. You are viewing the manual and parts listings for the CANON MAXIFY IB4020.