US 11,934,114 B2
Developer unit seals with fluid channels
Jeffrey Zampell, San Diego, CA (US); and John W. Godden, San Diego, CA (US)
Assigned to Hewlett-Packard Development Company, L.P., Spring, TX (US)
Appl. No. 17/633,627
Filed by Hewlett-Packard Development Company, L.P., Spring, TX (US)
PCT Filed Oct. 8, 2019, PCT No. PCT/US2019/055171
§ 371(c)(1), (2) Date Feb. 8, 2022,
PCT Pub. No. WO2021/071473, PCT Pub. Date Apr. 15, 2021.
Prior Publication US 2022/0283527 A1, Sep. 8, 2022
Int. Cl. G03G 15/08 (2006.01)
CPC G03G 15/0898 (2013.01) 14 Claims
OG exemplary drawing
 
1. A developer unit seal, the seal comprising:
a first sealing member to contact an end cap of the developer unit, the first sealing member having ports to align with rollers that are to protrude into the end cap;
a second sealing member to contact the first sealing member, the second sealing member having ports to align with the rollers; and
channels formed by the first sealing member and the second sealing member to direct print fluid to lubricate each of the ports,
wherein three walls of the channels are formed in the first sealing member and the second sealing member defines a fourth wall of the channels.