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Being able to print in colour and on many different paper types makes a big difference if you work on creative projects that use photographs, greeting cards or iron-on transfers. Not only can many AiO print in colour, but they can also print much faster than you might expect: up to 18 pages per minute (ppm) in colour and up to 22 ppm in black and white.
The sharpness of an image is measured in dots per inch (dpi). Some HP AiO can print up to 4800-optimized dpi (on HP Premium Photo papers and 1200x1200-input dpi).
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It used to be that scanning pages from a book or any bound document was either impossible or quite a chore, but that's no longer the case. Many AiO are built with flatbed technology, which is similar to what photocopiers use: a piece of glass on which you place your original. You can also choose flatbed scanners that accommodate oversized pages.
If you want to scan from separate loose pages, you can get an AiO with sheet-feed capabilities, or you can select one that has both flatbed and sheet-feed functions. The sheet-feed AiO can even scan legal size. High-quality colour scanning doesn't have to cost much, and the results can be up to 1200x4800 dpi optical resolution (up to 9600 dpi enhanced) with 48-bit colour (Windows only). Some models also let you scan and attach a document to email with the touch of a button.
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You're usually in a hurry when copying a document, so look for speed in an AiO. If you choose a colour inkjet model, make sure it can scan in either 24- or 30-bit colour, and check for how many copies it can print at a time. Also make sure you can produce copies without having to adjust anything on your PC.
Other special copying features to look for are reduction, enlargement, collation, and the ability to make single copies with the touch of one button - a terrific timesaver. With a paper capacity on some HP products of up to 400 sheets, if you add an optional 250 sheet extra paper tray, you will not have to worry about running out of paper in the middle of a job.
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With the ability to fax built-in to your printer/scanner/copier unit, you don't need a separate machine to do the job. And, by selecting flatbed technology, you can even fax pages from a book. All AiO will even send and receive faxes in colour!
The added benefit of using the fax feature in an AiO connected to your computer is that you can store the faxes electronically and do not have to print them out all the time. Many AiO with fax capability also come with a keypad, automatic document feeder, memory presets for common numbers, and one-touch dial-up capability (some fax modems can transmit at up to 33.6Kbps)
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Printable version
