dip how much difference does this make?

Discussion in 'Digital Photography' started by b13171, Aug 21, 2007.

  1. b13171

    b13171 Guest

    I must replace my HP printer.I primarily use the printer for home
    office work, printing crafts and photos. At the suggestion of some
    here, I am going to purchase eithr an Epson or Canon.
    I would prefer to get an "all in one". DPIs on these printers in my
    price range are 5670 x 1440.
    Canon makes a photo printer in this same price range with 9600 x 2400
    DPIs. How much difference in printing quality would this difference
    make. Or, are dpis similar to megapixels in cameras. (I have a
    Fuji with 5 megapixels-
    a friend with 7. I can't tell the difference even with photos blown
    up to 18 x 24")
    Thanks Liz
    b13171, Aug 21, 2007
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  2. b13171

    Gino Guest

    I haven't used Canon printers, however I have used HP and Epson.

    I didn't plan to change from Epson to HP, but Dell had no stock of Epson's
    at the time so I went for a HP Photosmart. I haven't looked back since.

    I have recently bought a HP Photosmart C6180, but I haven't used the scanner
    yet (I don't scan many photos, I use a film scanner for this).
    Gino, Aug 21, 2007
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  3. b13171

    Eatmorepies Guest

    I use an Epson and print colour pictures at 1440 dpi. I have tried 760 dpi
    and they don't look much different; but because I tend to print only 1 or 2
    pictures at a sitting I use 1440. I did try 2880 but it took a huge amount
    of time and there was no difference.

    But in black and white there may be a difference between 1440 and 2880. I
    use the black only setting so the grey bits are made of tiny black dots. I
    assume 2880 dots are more tiny than 1440 dots. If I have a B&W that has a
    large range of grey tones I use 2880 and I turn of the print command that
    makes the printer bidirectional. Thsi means that an A3 takes a long time -
    but the results are good. For those B&W that are gritty and grainy then
    going to 760 dpi can help the image.

    So I don't think that you need any more than 2880 dpi.

    I print some A3 pictures at 130 pixels per inch instead of the 'industry
    standard' of 300 ppi - and very good some of them look too.

    Eatmorepies, Aug 21, 2007
  4. b13171

    tomm42 Guest

    I bought an industrial sized Canon printer and couldn't be happier
    with it, I also got an HP 13 inch printer for work, it has been a good
    choice too. You may want to look at 13 inch printers, the HP B9180
    does excellent work, takes large (less expensive) ink carts, you can
    work with plain paper to art and photo papers. We have it going all
    day every day and it has been up to that task. It also has a self
    check for head clogs a nice feature at the price of leaving it on all
    the time. My new Canon at home has the same feature if I'm not using
    it for a few days or going away I turn it off. Then it does a head
    cleaning on start up. Ink is very expensive for any printer but
    especially so for letter/A4 printers, since they have very small ink

    tomm42, Aug 22, 2007
  5. Remember, printer dots are NOT pixels. In order to print good grey
    scales and good colors, a printer creates each PIXEL by an array of
    dots (dithering). Now, no printer has enough dots per pixel to cover
    the whole gamut of colors which the operating system and imaging
    software can handle. So it 'diffuses' the dithering into surrounding
    pixels. The more dots you can put into each pixel, the better the
    shading and color accuracy you can get without diffusing into
    neighboring pixels.

    So a printer should have a MUCH higher dpi than the ppi you are going
    to print the images at.
    Don Stauffer in Minnesota, Aug 22, 2007
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