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2. Dots per inch - Wikipedia

   en.wikipedia.org/wiki/Dots_per_inch

   A laser printer applies toner through a controlled electrostatic charge, and may be in the range of 600 to 2,400 DPI. The DPI measurement of a printer often needs to be considerably higher than the pixels per inch (PPI) measurement of a video display in order to produce similar-quality output. This is due to the limited range of colours for ...

3. Image scanner - Wikipedia

   en.wikipedia.org/wiki/Image_scanner

   [20] [21] In 1999, Canon iterated on this idea with the IS-22, a cartridge that fit into their inkjet printers to convert them into sheetfed scanners. [22] In early 1985, the first flatbed scanner for the IBM PC, the Datacopy Model 700, was released. Based on a CCD imaging element, the Model 700 was capable of scanning letter-sized documents at ...

4. Pixel density - Wikipedia

   en.wikipedia.org/wiki/Pixel_density

   The ideal pixel density (PPI) depends on the output format, output device, the intended use and artistic choice. For inkjet printers measured in DPI it is generally good practice to use half or less than the DPI to determine the PPI. For example, an image intended for a printer capable of 600 dpi could be created at 300 ppi.

5. Comparison of e-book formats - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_e-book_formats

   The advantage of DjVu is that it is possible to take a high-resolution scan (300–400 DPI), good enough for both on-screen reading and printing, and store it very efficiently. Provided the images are reasonably clean and the most aggressive compression settings are used, a couple hundred 600-DPI black-and-white text scans can be stored in less ...

6. List of image resolutions used in digital cameras - Wikipedia

   en.wikipedia.org/wiki/List_of_image_resolutions...

   Olympus Stylus 600 Digital 3,008 2,000 ... Better Light 300 mm lens Digital (line scanner) See also. Image sensor format — the sizes and shapes of common image ...

7. List of common display resolutions - Wikipedia

   en.wikipedia.org/wiki/List_of_common_display...

   Pixel aspect ratio (PAR) The horizontal to vertical ratio of each pixel. Storage aspect ratio (SAR) The horizontal to vertical ratio of solely the number of pixels in each direction.

8. Lines per inch - Wikipedia

   en.wikipedia.org/wiki/Lines_per_inch

   Higher-quality paper, such as that used in commercial magazines, has less dot gain, and can range up to 300 LPI with quality glossy (coated) paper. In order to effectively utilize the entire range of available LPI in a halftone system, an image selected for printing generally must have 1.5 to 2 times as many samples per inch (SPI). For instance ...

9. Laser printing - Wikipedia

   en.wikipedia.org/wiki/Laser_printing

   At 300 dpi, there are 90,000 dots per square inch (300 dots per linear inch). A typical 8.5 × 11 sheet of paper has 0.25-inch (6.4 mm) margins, reducing the printable area to 8.0 by 10.5 inches (200 mm × 270 mm), or 84 square inches. 84 sq/in × 90,000 dots per sq/in = 7,560,000 dots. 1 megabyte = 1,048,576 bytes, or 8,388,608 bits, which is ...