Print Quality
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HP DesignJet 5000 and 5500 Series Printers Service Manual
evaporates partially, which leaves the ink on the nozzle with more
pigments. Therefore, the initial drops ejected from those nozzles will
be darker (they have more pigment) than the following ones. This
leads to the second issue (darker border). If we take the previous
example, we will observe that the parts of the border which are darker
corresponds to the parts which have not printed for some time.
If we magnify the error you will see that the darker part (which is not
printing) has darker drops, because of the initial excess of pigments.
2 If the resting state is maintained longer, the water of the ink
evaporates almost completely, which blocks the nozzle from a small
amount of time while it is refilled with fresh ink.
