In our test photos, the iP4000 did a good job capturing tricky details such as the illustration on a postage stamp and the rivets in a robot suit, but we saw slightly more dithering and banding in the background than we'd like. Also, we saw visible dots throughout our test photos, which seriously affected the smoothness of skin tones. For truly excellent photo printing, check out theor the .
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CNET Labs' project leader Dong Ngo contributed to this section of the review.The Canon Pixma iP4000 comes with an industry-standard one-year warranty. Toll-free tech support is available Monday through Friday from 8 a.m. to midnight and Saturday from 10 a.m. to 8 p.m. ET. You can find free, well-written tutorials, FAQs, and downloadable manuals online. Canon provides e-mail support, but we got only somewhat helpful automated responses to a few general questions. The Q&A troubleshooter helped a lot to isolate our problem, though Canon could stand to round out the multiple-choice options. Overall, Canon's support site is useful and easy to navigate.