Polychromatic pen for pen plotters with color mixing at media surface
US5440327A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 28, 1992 |
| Grant date | Aug 8, 1995 |
| Priority date | — |
| Expiry date | Jul 28, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43K27/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention is a polychromatic pen cartridge for recording device such as a color plotter, or printer, for recording a color image on a recording m edium. The color image is characterized by a line width. The invention has tapered tubular lumens with plural hollow elongate lumens. The tubular lumens have a tip end facing the recording medium and spanning a distance on the recording medium on the order of the line width. Each of the lumens has an opening at the tip end and a large input opening at the other end. A plurality of separate ink reservoirs are connected to corresponding ones of the lumens at the input openings thereof. There are also valving apparatus for individually controlling ink flow from each of the ink reservoirs to a respective one of the lumens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.