Dell 5230dn Mono Laser Printer Service Manual - Page 192
Vertical stripes, process direction
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Vertical stripes (process direction) Leading edge Trailing edge Step Check 1 Check the media condition. Load new, dry, recommended media. Re-print the defective image. Does the error continue? 2 Are the media transfer route and the media path free of contamination or debris? Yes Go to step 2. Go to step 3. 3 Check the charge roll assembly for contamination and wear. Is the above component free of excess wear and contamination? Go to step 4. 4 Check the transfer roll assembly for contamination and Go to step 5. wear. Is the above component free of excess wear and contamination? 5 Check the print cartridge for proper installation. Is the above component properly installed? Go to step 6. 6 Check the heat roll and pressure roll. Remove the fuser unit assembly. CAUTION: Allow the fuser unit assembly to cool down. Replace the fuser unit assembly. Go to "Fuser unit assembly removal" on page 4-22. Is there contamination or cracks on the heat roll and/or pressure roll? No Problem solved. Remove debris or contamination. Replace the charge roll assembly. Go to "Access door removal" on page 4-7. Replace the transfer roll assembly. Go to "Transfer roll assembly removal" on page 4-80. Inspect, clean and reinstall replace the print cartridge. Go to step 7. 2-158 Service Manual