10/20063-23Phaser 8510/8560MFP Multifunction Product IQ30, IQ31Image QualityInitial IssueIQ30 Repeating Print DefectsThis RAP addresses image quality problems associated with the Print Engine. Repeatingdefects typically result from dirt, debris, or damage to an imaging component. The intervalbetween the defect can reveal the affected component. A repeating defect can appear as fol-lows:Figure 1 Example of Repeating Defects on OutputInitial Actions1. Check that supported media is being used.2. Print several test prints as a sample.3. Measure the interval between defects and note their position.ProcedureIQ31 White Stripes (Pinstripes)This RAP addresses image quality problems associated with the Print Engine. White stripingappears as a series of evenly-spaced pinstripes approximately 6 mm (.25 in.) apart. This indi-cates a malfunction in the X-Axis Drive. Pinstriping appears as follows:Figure 1 Example of Pinstripes on OutputInitial Actions1. Check that supported media is being used.2. Print several solid-fill test prints as a sample.ProcedureTable 1 IQ30 Repeating Print DefectsStep Questions and Actions Yes No1 Repeating defects that occur every 11.6 cm(4.58 in.) are caused by the Transfix Roller.Clean or replace the Transfix Roller asneeded.Does the problem persist?Go to Step 2. Complete.2 A repeating defect that has a different Y posi-tion on each page, but has the same X posi-tion indicates a defect on the Drum.Clean the Drum.Does the problem persist?Replace the DrumAssembly (REP2.0.3).Complete.Table 1 IQ31 White Stripes (Pinstripes)Step Questions and Actions Yes No1 Print several solid-fill test prints.Does the problem persist?Go to Step 2. Complete.2 Check the X-Axis motion.Are there any obstructions, such as cables,screws, or damaged parts?Correct the inter-ference. If theproblem persists,go to Step 3.Go to Step 3.3 Check Printhead motion.Is there any interference with the horizontalmotion of the Printhead?Does the problem persist?Correct the inter-ference.Replace the X-AxisMotor (REP 4.0.5).
