Page 15 - 4 Xerox Document Centre Reference GuideDiagnostic ToolsThe Document Centre is equipped with a variety of diagnostic toolsto identify and isolate any problems that may occur. In most cases,these checks are performed in consultation with an authorizedtechnician or the Welcome Center. This section describes symptomsand problem resolution for problems associated with hardware.Use the table below to identify the applicable test for your situation.Tools Screen 1Tools Screen 2Machine TestsHow to get hereMore(On an ST model)Tools Screen 1Machine Tests(On a DC model)Symptom Applicable Testsl Image Quality is Poor The most common image quality problem for copy jobs iscaused by glass that is dirty. Before you perform any tests,clean the glass.The second most common image quality problem is causedby selecting the incorrect image quality type when using anyof the image quality adjustments found in the ImageAdjustment tab.Image Quality Tests and Patterns. These speciallydesigned patterns and tests are used to verify that the deviceis producing the optimal image quality. Each pattern tests adifferent image feature and is designed to be interpreted bythe Welcome Center or an authorized technician.Xerographic System Routine. The Document Centreautomatically adjusts the Xerographic module to enableoptimal Image Quality. This selection allows you tomanually initiate the Xerographic Routine.
