Multi-color ink jet printing process and color pen for minimizing banding and color bleed and ink jet nozzle plate for use therewith
CA 2023022 A1 · Owner: Hewlett-Packard Company · Inventors: Weiser, William B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for multi-color ink jet printing and a color pen and nozzle plate for use therewith wherein nozzles are provided in adjacent spaced apart and vertically offset columns in the nozzle plate. Each column of nozzles is dedicated to a particular color of ink to be printed and, these columns of nozzles are passed in multiple back and, forth passes across a print medium during an ink jet printing process. Using this process, the rate of ink deposition per printhead pass across a print media will be minimized and, this enhances color uniformity and absorption by the print media, particularly in applications requiring large amounts of solid color area fill. In addition, the formation of …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed August 9, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 9, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.