HP Designjet 4500 Series - User Guide

13. Dispose of the soiled sponge in a safe place to prevent the transfer of ink onto hands and
clothing.
If the front panel continues to display the Reseat or Replace message, replace the printhead or
contact your customer service representative.
Align the printheads
The printer will normally perform printhead alignment whenever printheads are replaced. If there is
no paper loaded when a printhead is replaced, the printer will perform the alignment the next time
you load paper.
NOTE You can turn off these automatic printhead alignments from the front panel: select the
icon, then Printer configuration > Auto printhead alignment > Off.
In addition, you should align the printheads if the Image Diagnostics Print indicates an alignment
error. See
How do I... (Image Diagnostics Print topics).
1. Make sure that you have a roll of opaque paper loaded in the printer; the best results will be
achieved with the type of paper that you normally use for printing. Single sheets of paper, and
transparent materials such as translucent bond, clear film, matte 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 Printhead management > Align printheads.
188 Chapter 11 How do I... (ink system topics) ENWW
How do I... (ink system
topics)