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This printer accepts paper as large 17 inches wide and the diffences between the two printers is the 3800's lack of a roll-feed option, and this mean you only can print 17x22 inches.
This printer wide tonal range, long-lasting prints, fantastic black-and-white printing, accurate color prints, and wide array of paper types make it wonderful for enthusiasts and professionals.
good side from this printer :Class-leading black-and-white printing; lots of paper options; long-lived prints; large ink cartridges.
bad side: expensive large footprint; no roll feed.