Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Belt position sensing for image registration










Image Number 5 for United States Patent #5208633.

In an imaging device having a belt supporting image on an image supporting surface and moving along an endless path in a process direction, an exposure device for forming images on the image supporting surface, an arrangement is provided to derive information about belt position with respect to the exposure device. The belt is provided with at least one fiducial opening or target at a belt edge, and a sensor is arranged with respect to the belt and the fiducial opening, to sense illumination directed through the fiducial opening. An illumination source is provided at a fixed position with respect to the exposure device and the sensor to directing illumination to the sensor, when the fiducial opening is aligned with the sensor, including at least two independently detectable illumination sources arranged along a cross process direction. Belt position with respect to the exposure device is then determined from the amount of occlusion of one of the first and second independently detectable illumination sources. Control of belt position may be split between image processing methods and mechanical methods.








 
 
  Recently Added Patents
Identifying multi-component carrier cells
IC layout parsing for multiple masks
Method for producing SOI substrate and SOI substrate
Compositions of PD-1 antagonists and methods of use
Method and apparatus for transcoding and transrating in distributed video systems
Wafer processing method and system using multi-zone chuck
Method and apparatus for wireless transmission of diagnostic information
  Randomly Featured Patents
Instant photo film pack and method for producing the same
Appliances with multiple modes of operation
Multilayered ceramic electronic component and fabrication method thereof
Hydrodynamic retarder
Ring with Maltese cross
Lamp that can be thrown
Optically coupled gas meter
Plant separation device
Exhaust gas treating method
Deodorant gel stick