Abstract:
A mounting bracket for an image sensing unit of a scanner according to one example embodiment includes a first portion and a second portion extending from the first portion. The first portion has a plurality of elongated holes therein each for receiving a fastener to mount the mounting bracket to a scan head frame. The second portion includes a cutout section therein for allowing an image sensor of the image sensing unit to receive an image from an optical unit of the scanner. A pivot hole in the first portion is centered about a width of the cutout section. When the mounting bracket is mounted on the scan head frame, the elongated holes in the first portion permit linear adjustment of the mounting bracket relative to the scan head frame and the pivot hole permits angular adjustment of the mounting bracket relative to the scan head frame.
Abstract:
A tubular structure with an opening defined thereon and having an inner surface and an outer surface. The tubular structure being substantially circular in shape and is made of a highly thermal conductive material. A plurality of light sources mounted on the inner surface of the tubular structure. The inner surface is coated with a diffused white coating. Light emitted from the plurality of light sources is reflected from the inner surface before exiting the tubular structure from the opening. This structure ensures emitting a uniform diffused light and prevents non-uniform illumination when disposed in an imaging forming device.
Abstract:
An illumination assembly for a scanner according to one example embodiment includes a light source, a first reflector and a second reflector. The first reflector has a curved structure and is positioned directly in the optical path of the light source. The first reflector has a first portion and a second portion. The first portion of the first reflector is positioned to reflect light received from the light source toward a target area to be scanned. The second portion of the first reflector is positioned to reflect light received from the light source toward the second reflector. The second reflector is positioned to reflect light received from the first reflector toward the target area.
Abstract:
An apparatus and methods of use for adjusting a sliding guide rod for an imaging device of a flatbed scanner to improve scanner skew misalignment comprising an attachment member movably mounting the sliding guide rod at one end thereof to one side of the flatbed scanner so as to allow skew-adjusting movement of the sliding guide rod at an opposite end thereof relative to the flatbed scanner and a skew adjustment assembly attached to an opposite side of the flatbed scanner and movably coupling and supporting the opposite end of the sliding guide rod to the opposite side of the flatbed scanner and being actuatable to cause the sliding guide rod to undergo skew adjustment relative to the flatbed scanner to correct scanner skew misalignment of the imaging device. The skew adjustment assembly includes a skew adjustment bracket mounted to the opposite side of the flatbed scanner and movably coupled to and supporting the opposite end of the sliding guide rod to the opposite side of the flatbed scanner and a tension spring and a plurality of bracket locking fasteners coacting with the skew adjustment bracket and movably actuatable relative thereto to move the sliding guide rod to undergo the skew adjustment relative to the flatbed scanner.
Abstract:
An imaging apparatus includes an automatic document feeder having a media feeding section, a media collecting section and a media conveying path extending from the media feeding section to the media collecting section. The imaging apparatus includes a scan head adjacent to the automatic document feeder. The scan head is moveable to a raised position aligned with a portion of the media conveying path for scanning a media sheet in the portion of the media conveying path.
Abstract:
A method for adjusting a controller of a scanner includes obtaining a scan of a predefined image. The method further includes moving the sensor-element signals of the control signal pattern generated by the controller earlier in the pattern by at least one unit and obtaining an additional scan. The obtaining and moving are repeated until a comparison of a latest additional scan to the image is worse than a comparison of a second-latest additional scan to the image. Another method obtains a noise-reducing heuristic which modifies a time parameter of a sensor-element signal. A set of repeated scans of a same scan line is obtained, noise is measured there from, the time parameter is modified by one predetermined unit, and the process repeats until the noise measured from the latest set of repeated scans is worse than that from the second-latest set of repeated scans.
Abstract:
A scanner includes a scan bar and a calibration strip. The scan bar has perpendicular fast-scan and slow-scan axes. The scan bar has an image sensor plane and includes a substantially linear array of sensor elements substantially aligned along the fast-scan axis. A first method for calibrating the scan bar includes imaging the calibration strip to the image sensor plane of the scan bar wherein the imaging is out of focus substantially-along the slow-scan axis. The first method also includes obtaining a calibration reading of the sensor elements from the imaging of the calibration strip. A second method includes imaging the calibration strip to the image sensor plane of the scan bar wherein the imaging is optically widened substantially-along the slow-scan axis. In a third method, the imaging is optically widened substantially-along the slow-scan axis using a cylindrical lens having an imaging-widening axis.
Abstract:
A detachable transparent plate for a scan head assembly in a document scanning system that allows an operator to detach the transparent plate from the scan head assembly located above a media feed path to clean a top face of the transparent plate and easily reattach it to the scan head assembly. The scan head assembly has an optical system and a sealing member detachably mounted to a bottom end of the optical system. The transparent plate is received and supported by the sealing member and defines a portion of a bottom surface of the sealing member. The sealing member is detachable from the bottom end of the optical system to allow an operator access to the top face of the transparent plate of the sealing member for cleaning the top face of the transparent plate.
Abstract:
A scanning system for generating an image includes a scanning device configured to receive light reflected from a document and to output a signal corresponding to the received light to collect image data for use in generating an image. An automatic document feed system is configured to move the document from a position upstream of the scanning device toward a position downstream of the scanning device along a document feed path in proximity to the scanning device to allow the scanning device to receive light reflected from the document. A processor includes logic that compensates for changes in document movement past the scanning device using document motion data to reduce motion error induced image defects.
Abstract:
A system for saving and retrieving job settings comprising a multifunction document management system and a settings form including a machine recognizable portion printed thereon, wherein the machine recognizable portion includes data indicative of at least one user-selected job setting and wherein the machine recognizable portion is readable by the multifunction document management system.