printhead employing both slotted and edgefeed fluid delivery to firing resistors

A printhead cartridge for a printing system having a fluid supply for supplying fluid to the printhead cartridge, the printhead cartridge comprising:

• a cartridge body;
• and
• a printhead die coupled with the cartridge body, the printhead die including:
• a plurality of firing resistors;
• and
• a plurality of fluid channels for delivering fluid to the plurality of firing resistors, wherein the plurality of fluid channels includes at least one edgefeed fluid channel and at least one slot feed fluid channel.

A fluid delivery system comprising:

• a substrate including:
• a plurality of fluid heating elements;
• an edgefeed fluid delivery feature for delivering fluid to the plurality of fluid heating elements;
• and
• a slot feed fluid delivery feature for delivering fluid to the plurality of fluid heating elements.

A printhead comprising:

• a substrate including:
• a first row of heating elements;
• a second row of heating elements;
• a single slot feed fluid delivery channel for delivering fluid to at least the first row of heating elements;
• and
• at least one edgefeed fluid delivery channel for delivering fluid to at least the second row of heating elements.

A method of delivering fluid comprising the steps of:

• providing a substrate having a plurality of fluid heating elements;
• delivering fluid via an edgefeed fluid delivery feature of the substrate to the plurality of fluid heating elements;
• and
• delivering fluid via a slot feed fluid delivery feature of the substrate to the plurality of fluid heating elements.