Possible solutions
●
Try to ensure uniform printing of all tiles, and all tiles printed in the same run.
●
Rotate every other tile, to compensate for left to right differences.
●
Adding spit bars at both sides of the image helps overall, especially when there are local color
variations.
Edge roughness, text quality
The edges of objects may appear rough or blurred; this is especially noticeable in text.
There are five possible causes:
●
Bleed: see
Bleed, halo, wicking on page 241.
●
Printhead alignment. As each ink is deposited by two printheads of the same color, it is important that
the two printheads are correctly aligned. When a color is formed by a combination of inks, which is often
the case, it is also important that printheads of different colors are correctly aligned.
To check printhead alignment, print the printhead alignment diagnostics plot (see
Printhead alignment
diagnostics plot on page 101). If the problem comes from an automatic printhead alignment, use
manual alignment for better control of the alignment process. If the problem comes from a manual
alignment, fine-tune it by identifiying the offenders in the printhead alignment diagnostics plot.
ENWW Advanced print-quality troubleshooting 243
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