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Kogation |
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(Cogation) The term
used to describe the deposit of dried ink on a thermistor in a print
head. It was first thought that the impurities in the water caused this
but newer studies found that it was, in fact, residual dye left from
the continuous heating and cooling of the thermistor. These deposits
can build and reduce the performance of the thermistor. Thermal heads
are found on Hewlett Packard and Canon printers, among others.
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