1. Why Inkjet Printers
Don’ Deliver The Yields
t
Promised
Learn about the true costs associated to
your mono (black) or colour Inkjet devices
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6. Answer:
The testing procedures used by the ISO
to estimate cartridge yields do not
reflect typical office and work
environments (where they are used most
often).
7. The Result:
$$$
You Could be Paying as much
as 200% - 400% more for
every page that you print!
8. Here are some of the ISO test
factors that affect yields:
1. Continuous Mode Testing
2.Test Originals Used are usually 20% coverage (the
average office document is at least 30 - 40%)
3.Testing for Fade
4.Testing at Rated Speed
9. 1. Continuous Mode Testing
After every print job, ink jet cartridges and solid ink
(wax) cartridges must purge their nozzles to avoid
clogging. I.S.O. tests are run in a continuous mode so
that there are no losses as a result of this cleansing
procedure. Short run work, according to manufacturers
tests, actually deliver yields as low as 25% of those
projected from continuous mode testing.
10. 2. Test Originals
The I.S.O.'s ink jet colour test patterns have 15%
coverage (vs laser @ 20%). However, typical
business colour documents tend to approximate
30 % coverage.
11. 3. Testing for Fade
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I.S.O. tests every 100 print/copy for quality. If
a colour cartridge with a 500 yield potential
failed at 525 prints, it could get a 600 print
rating. Rounding up when quot;fadequot; occurs can
affect yields by 10% - 20%.
12. 4. Testing at Rated Speed
200 D.P.I 600 D.P.I
(used to project (more commonly
yields). used).
I.S.O. tests printers at their rated speed. Injet
technologies run faster in quot;draft modequot; (200 D.P.I.)
and slower at quot;laser qualityquot; (600 D.P.I.). If your
injet was tested at 200 D.P.I. quot;draft modequot; but you
need 600 D.P.I. quality you should expect less yields.
13. In Summary
As can be seen from the previous slides, ink jet
cartridge yields can sometimes be mis-leading.
Users should understand the total cost per page
associated to their printing devices.
14. In Summary
While the quality of inkjet technology can
be quite good at times, these printers are
best suited for low volume applications, due
to the high cost of the supplies. Laser
printers are sometimes more practical for
higher volume office environments.
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