Optical sensing of ink jet printing
Internal test method and apparatus for facsimile transceiver
Ink-jet recording apparatus with mechanism for automatically regulating a recording head
Ink jet head with testing resistors
Ink jet recording apparatus and method therefor Patent #: 5539434
ApplicationNo. 790413 filed on 01/30/1997
US Classes:347/19Measuring and testing (e.g., diagnostics)
ExaminersPrimary: Barlow, John
Assistant: Stewart, Charles W. Jr.
Attorney, Agent or Firm
Foreign Patent References
International ClassB41J 029/393
Foreign Application Priority Data1996-01-30 JP
AbstractA printer apparatus for successively printing input data at a high speed having an input unit for inputting printing information to be printed on a print medium; a printing unit for printing a predetermined image on the print medium based on the input printing information; an image sensor unit for reading the printed image on the print medium; and an inspecting unit for inspecting the state of printing by the printing unit by comparing the input image and the image read from the top of the print medium. Further, a printed matter inspecting apparatus having an image sensor unit for reading the image printed on the print medium; an input unit for inputting printing information to be printed on the print medium; and an inspecting unit for inspecting the state of the printing on the print medium by comparing the image read from the print medium and the input printing information.