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  2. E18 error - Wikipedia

    en.wikipedia.org/wiki/E18_error

    ^Digital Camera Disasters: Will Yours Get Fixed? One widespread camera problem gets out-of-warranty repairs, another gets a lawsuit. (Grace Aquino, PC World, Tuesday 21 February 2006); ^ Repair guide; ^ IXUS 40 aka SD300 Repair Guide; ^ E18 quick fix (CNet Digital cameras forum); ^ Action by Horwitz, Horwitz & Associates at the Wayback Machine (archived 23 January 2013); ^ Investigation by ...

  3. Non-photo blue - Wikipedia

    en.wikipedia.org/wiki/Non-photo_blue

    The difference between the non-photo blue and black ink is great enough that digital image manipulation can separate the two easily. If a black-and-white bitmap setting is scanned in, the exposure or threshold number can be set high enough to detect the black ink or dark images being scanned, but low enough to leave out the non-photo blue. On a ...

  4. Ink cartridge - Wikipedia

    en.wikipedia.org/wiki/Ink_cartridge

    The printing depends on the smooth flow of ink, which can be hindered if the ink begins to dry at the print head, as can happen when an ink level becomes low. Dried ink can be cleaned from a cartridge print head using 91% denatured isopropyl alcohol (not rubbing alcohol). [5]

  5. Continuous ink system - Wikipedia

    en.wikipedia.org/wiki/Continuous_ink_system

    A continuous ink system (CIS), also known as a continuous ink supply system (CISS), a continuous flow system (CFS), an automatic ink refill system (AIRS), a bulk feed ink system (BFIS), or an off-axis ink delivery system (OIDS) is a method for delivering a large volume of liquid ink to a comparatively small inkjet printhead. Many business and ...

  6. Error detection and correction - Wikipedia

    en.wikipedia.org/wiki/Error_detection_and_correction

    A checksum of a message is a modular arithmetic sum of message code words of a fixed word length (e.g., byte values). The sum may be negated by means of a ones'-complement operation prior to transmission to detect unintentional all-zero messages. Checksum schemes include parity bits, check digits, and longitudinal redundancy checks.

  7. Invisible ink - Wikipedia

    en.wikipedia.org/wiki/Invisible_ink

    Invisible ink, also known as security ink or sympathetic ink, is a substance used for writing, which is invisible either on application or soon thereafter, and can later be made visible by some means, such as heat or ultraviolet light.

  8. Optically variable ink - Wikipedia

    en.wikipedia.org/wiki/Optically_Variable_Ink

    Optically variable ink used in popular USB drives that are often subject to counterfeiting. Taken from 2 different angles. Optically variable ink ( OVI ) also called color shifting ink is an anti- counterfeiting measure used on many major modern banknotes , as well as on other official documents ( professional licenses , for example).

  9. Magnetic ink character recognition - Wikipedia

    en.wikipedia.org/wiki/Magnetic_ink_character...

    In practice, this does not create particular problems as cheques and other vouchers do not usually flow out of a particular jurisdiction. The E-13B font has been adopted as an international standard in ISO 1004-1:2013, and is the standard in Australia, Canada, the United Kingdom, the United States, as well as Central America and much of Asia ...