I need some help in understand fully the following--or a site that will REALLY explain it.
I can use the Canon I850 to ask/explain my question. Canon says it is rated at 4800 dpi for horizontal color resolution and 1200 dpi for vertical color resolution. However PCWorld tests stated that this is a maximum for color AND text, but that actual for color and text is 600 x 600.
So I gather resolution above 600 x 600 is accomplished by computer/printer interpolation--the surrounding area of a given pixel is measured and these pixel areas then are filled in based on the measurements, so that you have a lot more dots per pixel.
1. Is this interpolation done as needed totally automatically anytime I print a color image?
2. OK, final question that baffles me how do all the dots per inch above 600 actually GET printed if the printer is only capable of 600 dpi? Does it take more than 1 pass?