Method of ink jet printing with varying density masking printing and white space skipping for faster paper advancement
July 7, 2019. 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 ReferencesThermal ink jet printer adapted to operate in monochrome, highlight or process color modes Color spatial filtering for thermal ink jet printers Method of transitioning between ink jet printing modes Optimizing printing speed and managing printed sheet ejection based on image density and method of determining density Method of ink jet printing using color fortification in black regions Density-based print masking for photographic-quality ink-jet printing Patent #: 5923349 InventorsAssigneeApplicationNo. 349025 filed on 07/07/1999US Classes:347/40, Array of ejectors347/15, Creating plural tones347/43Color typeExaminersPrimary: Le, N.Assistant: Nguyen, Hoang Attorney, Agent or FirmInternational ClassB41J 002/15AbstractA method of printing on a print medium with an ink jet printing mechanism having a print head with at least two nozzle arrays. The method comprising steps of printing with the nozzle arrays in a first printing mode, the first printing mode comprising the at least two nozzle arrays printing during a pass of the print head relative to the print medium, a second one of the nozzle arrays printing with a first density masking such that a portion of nozzles of the second nozzle array are prevented from printing during the pass; and switching to printing in a second printing mode when a subsequent pass of the print head relative to the print medium does not require printing from the first nozzle array, the second printing mode comprising the second nozzle array printing without the first density masking during the subsequent pass. | |
