1 Resolution may vary based on printer driver setting. Color ink droplets can be placed with a horizontal pitch of 1/4800 inch at minimum. 2 PPM print speeds are based on the highest speed printer driver mode. Photo print speeds are based on the default mode driver setting using Canon Photo Paper Plus Glossy paper. Print speeds will vary depending on system configuration, interface, software, document complexity, print mode, types of paper used and page coverage. CPM copy speeds based on fast mode setting using plain paper. Copy speeds may vary based on document complexity, copy mode, page coverage and number of copies. 3 USB 2.0 Hi-Speed requires Windows XP, 2000 or Mac OS X operating systems. For Windows 98, Me and Mac OS X v.10.2 to 10.2.6 operating systems, the printer will operate at USB 1.1 specifications.