Ink jet printer print head cleaning apparatus and method
June 26, 2011. 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 printer having an eccentric head guide shaft for cleaning and sealing nozzle surface Recording apparatus with recording medium length sensors Circuitry for detecting malfunction of ink jet printhead Ink jet recording apparatus comprising mechanism for conveying sheet-like cleaning medium to a recording region, discharge recovery treatment method employed in the same, and cleaning sheet also employed in the same Printer having head gap adjusting device Patent #: 4990004 InventorsAssigneeApplicationNo. 721302 filed on 06/26/1991US Classes:347/22, With cleaning or protector347/19Measuring and testing (e.g., diagnostics)ExaminersPrimary: Fuller, Benjamin R.Assistant: Le, N. Attorney, Agent or FirmForeign Patent References
International ClassB41J 002/165Foreign Application Priority Data1990-10-02 JPAbstractAn ink jet printer having a pressing mechanism for pressing a print head against a sheet of paper set on a platen by rotating an eccentric shaft, a driver for feeding the paper under the condition where the print head is in pressure contact with the paper to carry out cleaning of the print head, a photosensor for detecting whether or not the paper is present at a printable position, and an eject controller for ejecting the paper after carrying out test printing of a plurality of predetermined characters on the paper when the sufficient remaining paper is detected after ending the cleaning of the head or, alternatively, ejecting the paper without carrying out the test printing when it is determined there is insufficient paper detected after ending the cleaning of the head. | |
