<P> This dithered printing process could require a region of four to six dots ( measured across each side ) in order to faithfully reproduce the color in a single pixel . An image that is 100 pixels wide may need to be 400 to 600 dots in width in the printed output ; if a 100 × 100 - pixel image is to be printed in a one - inch square , the printer must be capable of 400 to 600 dots per inch to reproduce the image . Fittingly , 600 dpi ( sometimes 720 ) is now the typical output resolution of entry - level laser printers and some utility inkjet printers , with 1200 / 1440 and 2400 / 2880 being common `` high '' resolutions . This contrasts with the 300 / 360 ( or 240 ) dpi of early models , and the approximate 200 dpi of dot - matrix printers and fax machines , which gave faxed and computer - printed documents -- especially those that made heavy use of graphics or colored block text -- a characteristic `` digitized '' appearance , because of their coarse , obvious dither patterns , inaccurate colors , loss of clarity in photographs , and jagged ( `` aliased '' ) edges on some text and line art . </P>
<P> This dithered printing process could require a region of four to six dots ( measured across each side ) in order to faithfully reproduce the color in a single pixel . An image that is 100 pixels wide may need to be 400 to 600 dots in width in the printed output ; if a 100 × 100 - pixel image is to be printed in a one - inch square , the printer must be capable of 400 to 600 dots per inch to reproduce the image . Fittingly , 600 dpi ( sometimes 720 ) is now the typical output resolution of entry - level laser printers and some utility inkjet printers , with 1200 / 1440 and 2400 / 2880 being common `` high '' resolutions . This contrasts with the 300 / 360 ( or 240 ) dpi of early models , and the approximate 200 dpi of dot - matrix printers and fax machines , which gave faxed and computer - printed documents -- especially those that made heavy use of graphics or colored block text -- a characteristic `` digitized '' appearance , because of their coarse , obvious dither patterns , inaccurate colors , loss of clarity in photographs , and jagged ( `` aliased '' ) edges on some text and line art . </P>
how many dots per inch is high resolution
how many dots per inch is high resolution
1200 / 1440 and 2400 / 2880
1200 / 1440 and 2400 / 2880