LED print bar imaging apparatus and systems useful for electrophotographic printing
US9581930B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2015 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Dec 21, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/754
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A print head apparatus is provided for use with a xerographic printing device having a rotating photoreceptor with a curved conductive surface. The apparatus includes an LED bar print head configured for locating adjacent the photoreceptor; a first distance sensor located on the print head at a first location, the first distance sensor being configured for measuring a first gap between the print head and the photoreceptor at the first location; and a second distance sensor located on the print head at a second location, the second location being different from the first location, the second distance sensor being configured for measuring a second gap between the print head and the photoreceptor at the second location. The print head is configured such that the sensors are arranged on the print head such that the sensors are configured to enable a measurement of angular position of the print head relative to the surface of the photoreceptor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.