04680859 is referenced by 38 patents and cites 3 patents.

In a thin film resistor substrate for a thermal ink jet printhead, there is provided an elongated ink feed slot for supplying ink to a plurality of heater resistors on the substrate. Ink flows from this slot vertically through the substrate and then laterally along predetermined ink flow paths in an orifice plate and barrier layer members to ink reservoirs above the heater resistors. In this manner ink flow pressure drops to all of the reservoirs are equal and thereby enhance ink pressure control for all of the reservoirs.

Title
Thermal ink jet print head method of manufacture
Application Number
860294
Publication Number
4680859
Application Date
October 3, 1986
Publication Date
July 21, 1987
Inventor
Samuel A Johnson
Eagle
ID, US
Agent
William J Bethurum
Assignee
Hewlett Packard Company
CA, US
IPC
G03C 5/00
B05D 5/12
H05B 3/00
G01D 15/16
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