Ease of use
To simplify printing for users, the EasyShare AiO models include a sensor to read a watermarked code on the back of Kodak's paper and automatically enter the best print mode. Each model also has a top-side detector to determine if a sheet is plain paper or glossy, and adjust settings accordingly.
However, the downside to this automated help--as some may consider it--is that Kodak's software drivers won't allow you to choose a printer quality mode yourself. When the issue was pointed out, Kodak explained that it had spent a lot of time working on how to best put a print down, confident that most everyday users wouldn't mind.