Printer with uniform illumination for media identification
US8303074B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2010 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Mar 12, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J11/009
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An inkjet printer includes (a) a media support defining a surface; (b) an inkjet printhead oriented to eject ink toward a print region proximate the defined surface; (c) a carriage that is movable along a carriage scan direction; (d) a monitor for tracking the position of the carriage; (e) a light source directed toward the defined surface; (f) a light sensing device mounted on the movable carriage; and (g) an energy supply that provides a time-varying energy as a function of the position of the light sensing device relative to the light source in order to provide substantially uniform illumination from the light source toward a field of view of the light sensing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.