Xerox Phaser 8560MFP Service Documentation page 287

If the ink level sensors inside the Printhead detect that the Printhead has run out of ink, but the
ink low/out sensors are not activated, the Control Panel reports an "Ink Jam" error.
Figure 11 Printhead Components
Figure 10 Ink Loading
Printhead
The Printhead is the heart of the system, spanning nearly the length of the drum. Using its
1236 jet nozzles (309 jets for each primary color), with a horizontal motion of slightly less than
5 mm (0.2 inches), the Printhead can print the entire image on the rotating drum. The Print-
head provides one size ink drop that it uses for all print-quality modes.
Initial Issue Theory of Operation
10/2006
Image Output Terminal
Phaser 8510/8560MFP Multifunction Product 8-15