Uncharged ink supply for electrical fatigue in liquid electrophotography printing
US11852996B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2022 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Oct 24, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/105
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Systems, apparatuses, and methods of fluid delivery for liquid electrophotography printing. A fluid delivery apparatus includes a charged ink source, a supplemental fluid source, a working suspension tank in fluid communication with the charged ink source and the supplemental fluid source, a sensor, and an optical density control unit. The charged ink source is to store a charged ink mixture including charge directors and toner particles. The supplemental fluid source is to store a supplemental fluid including imaging oil. The working suspension tank is to store a working suspension mixture including the charge directors, the toner particles, and the imaging oil. The sensor is to monitor an optical density of print output of the liquid electrophotography printing apparatus. The optical density control unit is to determine whether to supply an uncharged ink mixture to the working suspension tank in response to the monitored optical density indicating electrical fatigue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.