Troubleshoot printhead alignment
Automatic printhead alignment may fail occasionally. In some cases, you may see the front panel error message "Automatic Printhead Alignment is cancelled because of scanning errors". In other cases, there is no error message but the print quality is not satisfactory. Here are some possible explanations.
●There is some problem with substrate advance (see
●You are using a
●The substrate is wrinkled. Check that the substrate is correctly loaded with uniform tension. If necessary, try adjusting substrate parameters such as tension or drying and curing temperatures.
●The substrate is not wide enough. Repeat the alignment process using a substrate roll at least 24 inches (610 mm) wide.
●The printer window was open during the printhead alignment process.
●The printheads are not clean. See Clean the printheads on page 18.
If the problem persists, please try using manual printhead alignment, or call your service representative (see HP Customer Care Centers on page 49).
Printhead alignment diagnostic plot
The printer offers a printhead alignment diagnostic plot, to assess the quality of the current printhead alignment. To print it, start the HP Internal Print Server and select Printer > Printhead alignment > Diagnostics plot.
1.The colored crosses on the left side of the plot should show the lines well aligned with each other.
2.The vertical lines to left of center should be straight, without kinks.
3.Of the four vertical lines at the top right of the plot, the leftmost two should be straight, without kinks.
Substrate-advance compensation
Accurate substrate advance is important to print quality because it is part of controlling the proper placement of dots on the substrate. If the substrate is not advanced the proper distance between printhead passes, light or dark bands appear on the print, and there may be an increase in graininess.
The printer has a
Printer calibration
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