Patent · US Active

Compensating voltages for electrophotography printing devices

US10795281B2 · kind B2 · utility

0Cited by

6References

15Claims

0Family size

Assignee

HP INDIGO B.V. · NL

Inventors

Guang Jin Li · San Diego, US
Eric G. Nelson · Wayne, US
Ido Finkelman · Nes Ziona, IL

Key dates

Filing date	Aug 24, 2017
Grant date	Oct 6, 2020
Priority date	—
Expiry date	Aug 24, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG03G15/0812
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A method of balancing current in a developer roller is described. The method includes pulsing voltage to a squeegee roller and a cleaner roller. The pulsed voltage yields a differential voltage at the developer roller after impression. The method also includes pulsing compensating voltage to at least one of the squeegee roller or the cleaner roller to reduce or cancel an accumulated developer current imbalance of the developer roller. The compensating voltage pulses include pulses before or after the impression.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.