公开(公告)号：US20170305150A1

公开(公告)日：2017-10-26

申请号：US15516389

申请日：2014-10-27

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： James GARDNER ,  Daryl E ANDERSON ,  Eric T MARTIN

IPC: B41J2/045

CPC classification number: B41J2/04541 ,  B41J2/04548 ,  B41J2/0458 ,  B41J29/393

Abstract: A method of operating a printing device during a power loss event includes, with a power loss detection device, detecting an power loss to a number of high voltage devices. The method further includes, with a voltage regulator coupled to printhead fire control circuitry, maintaining a power loss protection supply voltage (VDD_plp) to the printhead fire control circuitry.