HP Designjet Z6100 Printer series - Manual (Page 83)

If the front panel continues to show the Reseat or Replace message, replace the printhead or contact
your HP customer service representative.
Align the printheads
The printer performs printhead alignment whenever printheads are replaced. If no paper is loaded when
a printhead is replaced, the printer will perform the alignment the next time you load paper.
Also align the printheads if the Printhead status plot indicates an alignment error. See Use the Printhead
status plot on page 71 .
1
. Make sure that you have a roll of opaque, white paper loaded in the printer. Colored papers, glossy
canvas, and transparent materials such as translucent bond, clear film, tracing paper, and vellum
are not suitable for printhead alignment.
2
. To request printhead alignment (if the alignment is not being performed automatically), go to the
front panel, select the icon, and then select Image quality maintenance > Align
printheads.
The process takes about 10 minutes and starts immediately, unless an image is currently being
printed. If a print job is in process, the alignment will be done as soon as the current print job is
finished.
NOTE: Occasionally, if the paper in the printer is very close to the beginning of a roll, the
front panel might report that the printer needs to feed up to 3 m (≈ 10 ft) of paper before
starting the printhead alignment. This is necessary to ensure a successful alignment. You can
continue with the printhead alignment and allow the printer to feed as much paper as
necessary, delay the alignment until later, or cancel the alignment.
Use the Printhead status plot
The Printhead status plot consists of patterns that are designed to highlight printhead-reliability problems.
It helps you to check the performance of the printheads that are currently installed in your printer, and to
determine whether any printhead is experiencing clogging or other problems.
Print the Printhead status plot
To print the Printhead status plot:
1
. Use the same paper type that you were using when you detected a problem.
2
. Verify that the selected paper type is the same as the paper type that is loaded into the printer.
3
.
On the printer's front panel, select the icon, and then select Image quality maintenance
> Printhead diagnostics image.
It takes about 2 minutes to print the Printhead status plot.
Work with ink system components 71
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