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Old Jun 26, 2002, 10:56 PM   #1
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Default Photo Inkjet Printing - CMYK or RGB?

For the best results when printing photos from Photoshop to an inkjet printer on photo paper should your file be CMYK or RGB? Also, at what resolution? Is 300 okay or should it be higher?

I have a Hewlett Packard DeskJet 1220 inkjet printer that prints 1400x2800 dpi.

Thanks for your help!
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Old Jul 13, 2002, 9:02 PM   #2
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Since your printer is a CMYK , print your photos at that setting.
In photoshop you should set your image resulution to 300 dpi, but inside your printer drive, set it up to the highest mode to get the best setting.
Anyway, I think your printer's dpi is 2400 X 1200.

- CyberFlaw
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Old Aug 31, 2002, 4:11 PM   #3
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For best results let your printer do the RGB to CMYK conversion- it's part of it's job.Converting in Photoshop is unnecessary and in principle leads to slight image degradation.
Set your printer to highest dpi (not the setting in Photoshop-ignore). The resolution you get in your print is decided by it's size and the pixel dimensions of your image. For a well sharp, all else being equal and often not, image the benchmark is 300 pixels per inch e.g. image from scanner or digicam at 1800x1200 pixels,about 2.2Mp, corresponds to a 6"x4" print but more realistically many people are happy with 200 ppi for larger prints so that a 2400x1600 image, about 3.8Mp, relates to an A4 print.
It's very much about horses for courses, what YOU are happy with, so experiment and see dpis and ppis as rough guides and no more.
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