HP Latex 360 Printer - Manual (Page 115)

1. Use the same substrate type that you were using when you detected a problem. Or consider using vinyl
gloss substrate for better visibility of the optimizer in particular.
2.
Go to the front panel and press , then Image-quality maintenance > Align printheads > Print
test plot.
Check the continuity of the thin diagnostic lines on the alignment status plot. In one section, colored lines are
printed in line with black lines to test the alignment from one color to another. In a another section, colored
lines are printed such that one half is made with a forward pass and one half is made with a reverse pass to
test the alignment between the two directions. In both sets of patterns, printhead misalignment will be
visible as a step in the line at its center (marked with a short black line).
Bear in mind that small misalignments may not cause any print-quality defects. The printing process is
designed to hide the effects of small amounts of misalignment. The reference scale can be used to quantify
the amount of misalignment; errors below 4/600 inch are unlikely to cause print-quality defects.
The optimizer fluid is transparent and cannot usually be seen directly. The fluid can be seen on some
substrates (such as self-adhesive vinyl) when printed in conjunction with the colored inks. The cross pattern
that is printed above the reference scale is printed in this way and can be used to evaluate the alignment of
the optimizer on some substrates. In a well-aligned system, the light-colored cross at the center of the
pattern will be aligned with the four black lines at the sides of the pattern. The following figure shows how
this pattern will appear on the substrates on which it is visible. This sample is slightly misaligned.
ENWW Improve print quality 109