10/003-5Phaser 790/DocuColor 2006 IQ2Image QualityInitial IssueIQ2 IIT Image Quality Entry RAPThis RAP is for troubleshooting IIT (Scanner/ADF) problems only. Before proceeding, verifythat the defect is present in Copy mode only. If the defect is present in Print mode, go to theIQ1 RAP.Initial ActionsClean the Lens, the top and bottom surface of the Platen Glass, and all Mirrors with Lens andMirror Cleaner and a soft, lint-free cloth.ProcedureCompare the defective copies with the descriptions listed in Table 1. Perform the correctiveaction listed for that defect.Table 1Defect Corrective ActionBackground Clean the Platen Belt.Perform the Auto-shading adjustment (ADJ 6.6).Perform the B* adjustment (ADJ 6.7).Blurred or Streaked Copy Ensure that the Platen Glass is installed correctly.Check/adjust the carriage alignment (ADJ 6.2).R/E error Check/adjust IIT magnification (ADJ 6.1).Deletions Clean the Lens, the top and bottom surface of the Platen Glass, and all Mirrors with Lens and Mirror Cleaner and a soft, lint-free cloth.If the problem persists, replace the ICM Main PWB (PL 16.2).Misregistration/Skew Go to the IQ12 RAP.MoirePatterns in the image areas of the print that have theappearance of a screen or grid overlaying theimage. The pattern may be uniform or nonuniform inarea or shape.Go to the IQ13 RAP.Newton RingsRepetitive, irregular-shaped marks that occur whenmaking copies of glossy photographs. These marksare most noticeable in large low-density or highlightareas.Clean the Document GlassPlace a transparency between the document and the glass
