Ink jet printer having print head and maintenance system alignment
CA 2223213 C · Owner: Salazar, Edilberto I. · Inventors: Salazar, Edilberto I.; Malin, Richard A.; Jackson, Jerome E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method comprising the step(s) of: positioning a print head and a maintenance head of an ink jet printer into proper mating relationship; driving, the print head to a hard stop; measuring an indicator of the distance from the proper mating relationship position to the print head hard stop; storing the print head distance indicator in a memory; driving the maintenance head to a hard stop; measuring an indicator of the distance from the proper mating relationship position to the maintenance head hard stop; storing the maintenance head distance indicator in the memory; using the print head distance indicator to repeatably return the print head to the proper mating relationship position; and …
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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 December 1, 1997 and granted February 4, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 1, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 2019.
- 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.