This test allows you to switch the scanner back to Test Mode. Useful if the scanner gets out of Test Mode, e.g. if it has to be turned OFF/ON during troubleshooting. Test 20: Noise Test The purpose of this test is to detect and locate the possible cause (dust, dirt, scratches,..) of vertical lines running from top to bottom of the scanned image. When the test is executed, it scans the White Calibration Area of the Calibration Sheet and displays, for each color channel, the graytone values of each separate pixel averaged over the scanned band.
The displayed image of the Calibration Sheet will be superimposed by low level noise caused by the CCD chip, and larger spikes most likely caused by dust, dirt, scratches, or similar defects on the Glass Plate. In rare cases, larger spikes may be caused by dust, dirt, or pixel faults on the CCD chip. The positions of larger spikes are shown by the numbers (cm or inch units) opposite to the spikes. The numbers refer to the Sideload-ruler on the scanner. Larger spikes going downwards are often caused by dust, dirt, scratches, or similar defects on the Glass Plate and may be removed by cleaning the Glass Plate. Downward spikes often show up as darker vertical lines in the scanned image.
Larger spikes going upwards are often caused by dust or dirt present on the Glass Plate during the last calibration with Scanner Maintenance. These defects are memorized by the Light Profiles stored in the Flash Memory and can only be removed by cleaning of the Glass Plate followed by running Scanner Maintenance again. Upward spikes show up as very bright vertical lines in the scanned image. White vertical lines in the scanned image may be found even if Noise Test shows a perfectly ‘clean’ scanner. In this case, the cause may be white dust or particles on the backside of the Glass Plate having the same color as the white background.
In this case, the Light Profiles of SCANtest 6, Test 9 may show upwards going spikes when a dark original is placed in the scan area. Test 21: SCANdump SCANdump is a tool for remote diagnostic. SCANdump saves the light profile from the cameras, error codes, and statistics. When the test is executed, the file SCANdump.con will be placed in the directory c:\Temp\ . Test 27: Camera Adjustment Wizard This allows you to adjust the camera using a wizard that guides you through the complete process. Use this test (instead of Test 9) only if you have no experience in adjusting the camera. See Adjusting the Camera Using the Camera Wizard. Test 28:
Original Guide Sensor Test This is to test the Guide Plate Sensors which are located under the Guide Plate. See Original Guide Sensor Test. Test 30: Calibrate ATAC (Automatic Thickness Adjustment Control) This test sets the current level at which the ATAC will stop if something is preventing it from moving down. See Calibrate ATAC (Automatic Thickness Adjustment Control). Test 31: Driver Board Communication Test This test checks the communication between the Scanner and the Driver Board. See Driver Board Communication Test. Troubleshooting Issues The following guide will help you to find a solution to some typical problems that some customers may experience.
The problems ( P# ) that can be solved remotely through on-phone support and customer 6 Chapter 1 Troubleshooting ENWW