HP designjet l65500 Manuale Di Servizio

246

Troubleshooting

This is an example of good nozzle health. All rectangles are perfectly filled with the printheads color.

This example has many nozzle outs. The unfilled rectangles (meaning that the nozzle is out) are marked 

with red arrows to help you to understand the issue. In this example, the zoomed area has 5 failed 

nozzles. The corresponding nozzle number can be read directly from the print.

If the printer has nozzle defects, it does not mean that you will not get perfect print quality results because 

the printer can automatically compensate for this so there is no need to replace the Printhead. 

A single die for a single color can contain up to 20 nozzles out and not affect substantially the overall 

Image Quality.

 The method of improving Nozzle defects is to:

1.

Perform a Clean & Check process from the ISP.