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How Inkjet Cartridges Work
The
print head and the circuitry perform most of the work on an inkjet
printer. And, in most cases, these are not permanently installed in the
printer – they are contained on the small inkjet cartridge itself.
Today, there can be anywhere from 48 to 320 nozzles or “jets” on a
print head located at the bottom of your discount inkjet
cartridge. That's
why a
non-name brand or compatible inkjet cartridge won't ruin your printer!
Each
of these nozzles is smaller than a human hair and each is connected
electronically to a heater (or resistor) that actually heats and cools
the ink inside the cartridge. When the ink is heated, a bubble forms.
When the heat source is removed, the bubble bursts and sends dots of ink
through the nozzles and onto the paper in the printer. This heating and
cooling process happens at very high rates of speed, creating dots that
form print characters on the page at rates of up to 6,000 drops per
second.
It
was previously believed that the heaters in ink jet cartridges would only
last for one use. Now manufacturers realize that the heaters continue to
do their work and the nozzles continue to fire beyond one use on most
inkjet cartridges. In fact, the heaters on most cartridges will continue
to fire until they burn out completely or weaken significantly. On the
average, that happens somewhere between the third and fifth time the
cartridge is used.
For
consumers, this information is useful in three ways. One,
remanufacturing services or refill kits can extend the life of a
cartridge without fear that the inkjet printer itself will be ruined. If
the “workhorse” of the printer is the print head and circuitry
contained on the printer cartridge itself, then the most a consumer
would risk is the minimal fee involved in remanufacturing the cartridge
or purchasing a refill kit. Secondly, purchasing a compatible inkjet
cartridge instead of a brand name cartridge cannot ruin a printer that
does not contain a print head. The print head and circuitry is on the
cartridge, not in the printer. Therefore, the consumer would again be
risking only the amount one paid for a generic inkjet cartridge – not
the cost of replacing an inkjet printer. And lastly, it emphasizes the
importance of purchasing compatibles from a manufacturer that produces
inkjet cartridges to the same specs (ISO standards) as brand name
manufacturers, and backs that up with a strong guarantee.
Eventually,
all inkjet cartridges will wear out. And, if you are refilling your
cartridges, you should know that this does not always coincide with when
your cartridge runs out of ink. If you start seeing horizontal bands,
white streaks, or incomplete areas with no ink – that could be a sign
that your inkjet cartridge is nearing the end. There are some common
inkjet cartridge problems that can cause these same conditions. Check
our list of common fixes and if these don’t correct your print
problem, it is time to replace your inkjet cartridge.
Although
ink jet cartridges won’t last forever, purchasing economical
compatibles and using remanufacturing services and refill kits will
extend the life of most inkjet cartridges without harming the inkjet
printer itself.
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