A sensor chip includes multiple photoelectric conversion elements, and a synthesis circuit that synthesizes outputs of n photoelectric conversion elements and outputs the outputs to an external device. The synthesis circuit synthesizes and outputs the outputs of the n photoelectric conversion elements at positions selected based on a control signal received from the external device.

An image capture and output method comprises steps of providing an image capture device, continuously capturing a plurality of line images from an initial position and recording a position information corresponded to each line image, calculating the difference between the position information of the first line image and the initial position and the differences between the position information of each of the rest line images and a former one of the line image to obtain a fill information, filling each line image into an image buffer according to the fill information, and outputting the image buffer as a product image. Therefore, the deformation issue is effectively solved, the storage memory is saved, and the manufacturing cost is lowered.

An image capture and output method comprises steps of providing an image capture device, continuously capturing a plurality of line images from an initial position and recording a position information corresponded to each line image, calculating the difference between the position information of the first line image and the initial position and the differences between the position information of each of the rest line images and a former one of the line image to obtain a fill information, filling each line image into an image buffer according to the fill information, and outputting the image buffer as a product image. Therefore, the deformation issue is effectively solved, the storage memory is saved, and the manufacturing cost is lowered.

An image capture and output method comprises steps of providing an image capture device, continuously capturing a plurality of line images from an initial position and recording a position information corresponded to each line image, calculating the difference between the position information of the first line image and the initial position and the differences between the position information of each of the rest line images and a former one of the line image to obtain a fill information, filling each line image into an image buffer according to the fill information, and outputting the image buffer as a product image. Therefore, the deformation issue is effectively solved, the storage memory is saved, and the manufacturing cost is lowered.

An image capture and output method comprises steps of providing an image capture device, continuously capturing a plurality of line images from an initial position and recording a position information corresponded to each line image, calculating the difference between the position information of the first line image and the initial position and the differences between the position information of each of the rest line images and a former one of the line image to obtain a fill information, filling each line image into an image buffer according to the fill information, and outputting the image buffer as a product image. Therefore, the deformation issue is effectively solved, the storage memory is saved, and the manufacturing cost is lowered.

A method, and document scanner system, for correcting image values recorded by an optical document scanner with multiple color cameras arranged in a staggered configuration with overlap scan areas includes storing color correction values mapped to respective color index values, where a color correction value is computed from a color difference between a first color value and a second color value of the respective overlap sets, and correcting a third color value which is a color value from the second set of color image values by a color correction value which is looked up via a color index value determined from the third color value. Thereby color variations among staggered cameras are corrected.

In one example, a document scanner having a document-receiving platen. The platen includes a plurality of alignment patterns disposed on the platen at known positions in a coordinate system. The scanner includes overlapping staggered scan bars disposed adjacent the platen, each scan bar fixed at a position to image a one-dimensional slice of a corresponding one of the alignment patterns. The scanner further includes a controller to determine, from the imaged slice, X and Y coordinates of each corresponding scan bar within the coordinate system.

In one example, a document scanner having a document-receiving platen. The platen includes a plurality of alignment patterns disposed on the platen at known positions in a coordinate system. The scanner includes overlapping staggered scan bars disposed adjacent the platen, each scan bar fixed at a position to image a one-dimensional slice of a corresponding one of the alignment patterns. The scanner further includes a controller to determine, from the imaged slice, X and Y coordinates of each corresponding scan bar within the coordinate system.

Print jobs call for printing multiple logical pages on the same sheet, using base colorants and an extension colorant, and call for a different number of printing passes of the extension colorant for different logical pages. A first bitmap is created, and a first printing pass prints the first bitmap. The first bitmap is then modified to leave only the extension colorant plane, to create a modified bitmap; and a second printing pass prints the modified bitmap on the same sheet. The modified bitmap is additionally modified by removing printing pixels for the logical pages that do not contain an instruction to perform an additional printing pass of the extension colorant; and an additional printing pass prints the modified bitmap. These printing passes are repeated until no more of the logical pages contain the instruction to perform an additional printing pass of the extension colorant.

An optical member includes a lens array including lens bodies, and transmissive members. The transmissive members are made of a material having a uniform refractive index, and are disposed at positions nearer an object to be read or at positions farther from the object to be read than the corresponding lens bodies are disposed. The transmissive members have a columnar shape extending along the optical axes of the lens bodies, and allow light incident through one end faces to exit through the other end faces. The optical axes of the lens bodies are deviated from the central axes of the transmissive members corresponding to the respective lens bodies at least in the sub-scanning direction, and an end face of the transmissive member to which an end face of each lens body is opposed is thereby an end face of the corresponding transmissive member.