Circuit for adapting 4-color image signals to an 8-color digital printing apparatus
March 28, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInk jet printing apparatus Dichromatic reading device Color printing apparatus Method and apparatus for reproducing a color image using additive and subtractive primary colors Printing apparatus or system for recording a color image Method for recording a color image Digital color copying machine Ink-jet recording process, and ink set and ink-jet recording instrument for use in such process Patent #: 5623294 InventorsAssigneeApplicationNo. 827590 filed on 03/28/1997US Classes:358/1.9, Attribute control346/45, PLURAL-FUNCTION RECORDER, DISTINGUISHABLE RECORDINGS346/46, Records distinguishable by color346/140.1, With ink supply to marker347/96, Reactive347/98, Colorless347/100InkExaminersPrimary: Coles, Edward L.Assistant: Lamb, Twyler Attorney, Agent or FirmInternational ClassesB41B 015/00G01D 015/16 G01D 011/00 B41J 002/17 AbstractIn an ink-jet printing apparatus, an arrangement of logic gates disposed between a source of rasterized image signals and printing hardware allows real-time conversion of CMYK image signals for application to an ink-jet printhead which is capable of CMY, RGB, and process and pure black outputs.Field of SearchWith ink supply to markerPLURAL-FUNCTION RECORDER, DISTINGUISHABLE RECORDINGS Records distinguishable by color Drying or curing Color type With integral ejector Creating plural tones Reactive Measuring and testing (e.g., diagnostics) Fluid content (e.g., moisture or solvent content, ink refilling, liquid level) Colorless Ink Recording apparatus | |
