Re: Study: Over Half of Inkjet Printer Ink is Thrown Away
- From: Arthur Entlich <e-printerhelp@xxxxxxxx>
- Date: Fri, 13 Jul 2007 11:42:34 GMT
This article does, however, raise a question that I was trying to get an answer to. About a week ago I posted this, directed to Ron Baird, and I do hope he gets to answer it if he is hanging around here.
Art
Hi Ron,
I do have a few questions regarding the new Kodak cartridges.
As I understand it, there are two cartridges. One contains the black ink, the color ink cartridge contains 5 colors. Cyan, light cyan, magenta, light magenta and yellow. In every inkjet printer using the CcMmYK system, the drivers use more light or "photo" magenta and cyan up than the other colors. Does the color cartridge contain differing amount of ink based upon the color? In other words, is there more light magenta and light cyan, followed by yellow, than there is cyan and magenta?
If this has not be adjusted for (the same amount of ink for each color) then the cartridge will very likely run out of the light colors first, at which point, whatever is left in the cartridge will be wasted.
Can you supply any insight into this matter?
Art
Ablang wrote:
Study: Over Half of Inkjet Printer Ink is Thrown Away.
As much as 60 percent of the ink in inkjet cartridges is wasted when
printers ask users to throw away half-full cartridges.
Rosemary Haworth, PC Advisor
Friday, June 15, 2007 1:00 PM PDT
As 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.
Research 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.
By 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 colors are supplied
in a single unit of cyan, magenta and yellow as well as six-color
printers that have a five-color ink cartridge. The printers each
printed as many sample pages as possible until one of the colors 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 color tends to dominate as a
presentation will have a particular color 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
color faster than any other and the printer alerts the user that
replenishment ink is needed.
Epson 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 color tanks.
Epson sells inkjet printers only that have separate ink cartridges for
each color. This means that when one color runs out, the consumer can
replace a single cartridge, rather than having to replace all the
colors 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
color 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.
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