Skew preventer for a film belt
Patent 5276460 Issued on January 4, 1994. Estimated Expiration Date: 
November 13, 2012. 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.
November 13, 2012. 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 ReferencesBelt tracking system Paper re-feeding apparatus of image forming apparatus Web guiding apparatus Patent #: 4901903 InventorAssigneeApplicationNo. 975735 filed on 11/13/1992US Classes:347/217, With transfer medium or driving means therefor226/15, To position material laterally226/17, By roller pair engaging web margin226/21, Pivotally mounted roller226/23, Responsive to material-contacting element400/579, Including skew correction responsive to position of sheet or web400/619Including web guiding or aligning (e.g., laterally, relative to print-line, etc.)ExaminersPrimary: Fuller, Benjamin R.Assistant: Tran, Huan Attorney, Agent or FirmForeign Patent References
International ClassB41J 035/08Foreign Application Priority Data1991-11-14 JPAbstractA thermal printer of the type applying ink to an endless film belt, selectively melting the ink by a thermal head in response to an image signal, and transferring the melted ink to a recording medium to print an image on the medium. An idler guides the film belt while applying a predetermined tension thereto. A tension adjusting mechanism moves the end of the idler toward which the belt has skewed in the running direction of the belt. The idler and tension adjusting mechanism effectively reduce the local increase in the tension of the film belt. | |
