Patent · US Active

Printer control using optical and electrostatic sensors

US9042755B2 · kind B2 · utility

1Cited by

9References

23Claims

0Family size

Assignee

Xerox Corporation · US

Inventors

Eric Rotberg · Toronto, CA
Richard Philip Nelson Veregin · Mississauga, CA
Majid Kamel · North York, CA

Key dates

Filing date	Oct 4, 2013
Grant date	May 26, 2015
Priority date	—
Expiry date	Oct 4, 2033

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J2029/3935
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Various methods and devices transfer test patches of marking material from a marking device of a printing apparatus to a transfer surface of the printing apparatus, optically measure the density of the test patches on the transfer surface using an optical sensor of the printing apparatus, and measure the electrostatic differences in charge of the transfer surface as the test patches on the transfer surface move by an electrostatic sensor of the printing apparatus. Such methods and devices adjust settings of the marking device based on output from the electrostatic sensor alone, or based on a combination of the output from the optical sensor and converted output from the electrostatic sensor.

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