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 user 2007-06-19 at 10:43:00 am Views: 67
  • #18163

    60 percent of inkjet printer ink is thrown away
    much as 60 percent of the ink contained in a typical inkjet cartridge
    is wasted, when printers ask users to throw away half-full cartridges,
    according to research commissioned by Epson.The printer company
    commissioned research laboratory TUV Rheinland to measure how much ink
    is used up and how much remains in an inkjet cartridge when the printer
    claims it’s out of ink. The study revealed vast amounts of wastage: no
    matter which printer you choose, around half the ink you pay for goes
    unused. On average, inkjet printers provide an ink efficiency of just
    58 percent when used for photo printing purposes and 47 percent when
    used for printing business documents such as presentations.

    company TUV Rheinland performed comparative tests on eight different
    printers from well-known brands such as HP, Canon, Brother, Lexmark,
    Epson and Kodak. The Kodak EasyShare model that was included in the
    test proved to have an ink efficiency level of just 40 percent.
    contrast, models made by Epson and one HP inkjet, were shown to have
    efficiency levels of around 80 percent.The printers that scored
    particularly poorly were multi-ink cartridge models. This category
    included printers in which colours are supplied in a single unit of
    cyan, magenta and yellow as well as six-colour printers that have a
    five-colour ink cartridge. The printers each printed as many sample
    pages as possible until one of the colours was exhausted. The residual
    amount of ink that was unused was then recorded.TUV Rheinland’s Hartmut
    Mueller-Gerbes explained that tests were carried out separately for
    photo printing and for business printing. The sample photo prints used
    were chosen at random by a focus group while a typical PowerPoint
    presentation was used as the sample document for the business-focused
    efficiency test.Here, explained Mueller-Gerbes, one colour tends to
    dominate as a presentation will have a particular colour theme “such as
    the light magenta used in our example or the light cyan used in my
    presentation”. Because of this, business printing tends to drain one
    colour faster than any other and the printer alerts the user that
    replenishment ink is needed.

    commissioned the tests to measure the environmental impact of ink waste
    and to back up its assertion that it’s less wasteful – as well as
    cheaper – to use a printer that has individual colour tanks
    Epson sells inkjet printers only that have separate ink cartridges for
    each colour. This means that when one colour runs out, the consumer can
    replace a single cartridge, rather than having to replace all the
    colours when only one has been used up, as is the case with multi-ink
    cartridges.The weight of the inkjet cartridges was taken before and
    after the tests to ascertain how much ink was in it. They also compared
    with the weight of an empty cartridge to arrive at a figure for the ink
    on its own. The cartridges were chemically cleaned to ensure the weight
    of the cartridge alone was factored in.However, as conference attendees
    were quick to point out, the tests Epson commissioned did not measure
    the cost to the consumer, the number of pages each printer was able to
    produce before running out of colour and did not factor in the amount
    of ink used up by the cleaning cycle that printers routinely perform.
    This last factor is something industry experts believe accounts for a
    significant amount of ink waste.