{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8517494","patent":{"patent_number":"US-8517494","title":"Printing apparatus, dither mask, and printing method","assignee":null,"inventors":[],"filing_date":"2010-01-11T00:00:00.000Z","publication_date":"2013-08-27T00:00:00.000Z","cpc_codes":["G06K"],"num_claims":10,"abstract":"There is provided a printing apparatus having a nozzle row in a sub scanning direction; a halftone processing unit comparing each threshold value of a dither mask with image data; and a printing unit controlling ejection of ink from each nozzle by using a result of the halftone process. Here, a constant correspondence relationship is set between each position in a minimal repetition unit of a nozzle pattern and each threshold value of the dither mask applied to the each position. The dither mask includes at least one side of nozzles on both ends of the nozzle row or frontmost-end nozzles on both ends of the nozzle row in a print area having a predetermined range of an ink duty ratio. In addition, the plurality of threshold values are set such that a use ratio of front-end nozzles is lower than a use ratio of middle nozzles."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Printing apparatus, dither mask, and printing method","description":"There is provided a printing apparatus having a nozzle row in a sub scanning direction; a halftone processing unit comparing each threshold value of a dither mask with image data; and a printing unit ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8517494","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-8517494","citation_suggestion":"Patentable. \"Printing apparatus, dither mask, and printing method\" (US-8517494). https://patentable.app/patents/US-8517494","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8517494","json":"https://patentable.app/api/llm-context/US-8517494","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T12:19:48.452Z"}