HP Latex 3000 Printer - Manual (Page 127)

Pattern Affected printheads Correction type
H c1, m1 Substrate axis
I K Scan axis, bidirectional
J M Scan axis, bidirectional
K C, Y, c, m Scan axis, bidirectional
L C, M, Y, K, c, m, opt Scan axis, bidirectional, 1200 dpi
M c0, m0 Scan axis
N M0 Scan axis
O C0 Scan axis
P Y0 Scan axis
Q c0, m0 Substrate axis
R M0, Y0 Substrate axis
Take this into account when trying to compensate for any misalignment observed in the printhead alignment
diagnostics plot.
The central correction is 20 (15 for A), being the default value for each pattern in the Internal Print Server.
Aligning the optimizer printhead
The optimizer ink is transparent, so it is not easy to detect visually. To make it easier, a background of
composite ink has been added on top of it. It highlights the optimizer, making it visible most of the time.
The patterns A and B are intended to align the optimizer printhead to the colored printheads in both
directions (scan axis and substrate axis).
The image below shows the background with the optimizer lines on top of it.
Possible difficulties with printhead alignment
The optimizer ink is invisible or hardly visible
The composite background to highlight the optimizer ink works for most substrates, but occasionally, with
some substrates, there is not enough contrast to highlight the optimizer ink. In these cases there are two
possible solutions:
ENWW Possible difficulties with printhead alignment 121