The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 2013
Filed:
Mar. 09, 2009
Johannes H. Huyghen, Venlo, NL;
Franciscus J. W. M. Wolters, Nijmegen, NL;
Stefan A. C. J. Winteraeken, Roermond, NL;
Henricus W. C. Douven, Nederweert Eind, NL;
Mike P. Van Eekhout, Oosterbeek, NL;
Hubertus M. J. M. Boesten, Melick, NL;
Johannes H. Huyghen, Venlo, NL;
Franciscus J. W. M. Wolters, Nijmegen, NL;
Stefan A. C. J. Winteraeken, Roermond, NL;
Henricus W. C. Douven, Nederweert Eind, NL;
Mike P. Van Eekhout, Oosterbeek, NL;
Hubertus M. J. M. Boesten, Melick, NL;
OCE-Technologies B.V., Venlo, NL;
Abstract
In a printer having a print head moveable relative to a recording medium, the recording medium and print head may touch each other, thereby possibly damaging the print head and/or the recording medium. In order to prevent further damage, it is advantageous to detect a medium touch as soon as possible. An available feedback signal relating to the print head, e.g. originating from a carriage on which the print head is mounted, is employed to determine whether a medium touch has occurred such that a dedicated medium touch or crash sensor may be omitted. A malfunctioning nozzle signal is used to determine a change in a number of malfunctioning nozzles to detect a medium touch. Alternatively, a print head position signal is used to determine a position error and derive from the position error whether or not a medium touch has occurred.