Canon XRD9829REF user manual Non-calibrated Black Target Scan

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XRD9829REF

15.Pick the black target out from the kit and put it on a flat area. Place the XRD9829REF on top of the black target with the CIS sensor facing downwards. From the CAPTURE menu select SNAP SHOT for a single line scan of the black target with the dip switches set to zero. A typical result of a black target scan is shown below:

Figure 5. Non-calibrated Black Target Scan

16.Set the dip switches to 1000010000 to select the external DC reference for the 1.25V global offset adjustment. Push the Serial Port button. The XRD9829 will subtract whatever voltage appears on Pin 16, in this case, 1.25V, from the input. From the CAPTURE menu select SNAP SHOT. A typical result of the global offset adjustment is shown below. Please notice that the black code value has moved down.

Rev. 1.00

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Contents XRD9829REF XRD9829REF Block Diagram of XRD9829REF Operational Procedure Parallel Port Configurations D D D D D D D D 1 0 7 6 5 4 3 2 1 Control Register Description for XRD9829 ScanIt Software Window Before Scanning Non-calibrated Black Target Scan Black Target Scan After Global Offset Adjust XRD9829 Black Target Scan After Global and Fine Adjust VDD VRT VIN0 White Target Scan Without Gain Adjustment White Target Scan After Gain Adjustment Simplied Block Diagram Showing Gain Adjustment by XRD9829 Gray-scale Target Scan XRD9829REF XRD9829REF XRD9829REF XRD9829REF XRD9829REF XRD9829REF XRD9829REF