US 11,951,748 B2
Print liquid supply
Judson M. Leiser, Corvallis, OR (US); Miquel Boleda Busquets, Sant Cugat del Valles (ES); Bernd Karlsboeck, Sant Cugat del Valles (ES); David Olsen, Corvallis, OR (US); and Michael E. Peterschmidt, Corvallis, OR (US)
Assigned to Hewlett-Packard Development Company, L.P., Spring, TX (US)
Filed by Hewlett-Packard Development Company, L.P., Spring, TX (US)
Filed on Apr. 19, 2023, as Appl. No. 18/136,855.
Application 18/136,855 is a continuation of application No. 17/685,116, filed on Mar. 2, 2022, granted, now 11,667,125.
Application 17/685,116 is a continuation of application No. 16/765,215, granted, now 11,364,720, issued on Jun. 21, 2022, previously published as PCT/US2018/041944, filed on Jul. 13, 2018.
Prior Publication US 2023/0256745 A1, Aug. 17, 2023
Int. Cl. B41J 2/175 (2006.01)
CPC B41J 2/17523 (2013.01) 20 Claims
OG exemplary drawing
 
1. A key pen for a print liquid supply interface structure, the key pen comprising:
a base portion; and
a longitudinal key pen portion, the longitudinal key pen portion protruding from the base portion up to at least one actuating surface area that extends at a distance of at least 20 mm from the base portion, along a longitudinal pen axis,
wherein the base portion comprises a plurality of datums provided at regular positions around a circle having a mid-point on the longitudinal pen axis; and
wherein the plurality of datums facilitate positioning of the key pen in a predetermined rotational position around the longitudinal pen axis with respect to the print liquid supply interface structure.