Xerox 3300MFP Service Manual - Page 128

Print-Quality Troubleshooting Vertical Black Line and Band D gital P nter D gital P nter D gital P nter D gital P nter D gital P nter Straight thin black vertical line occurs in the printing. Dark black vertical band occur in the printing. Check and Cause Solution Damaged develop roller in the print cartridge. Deformed Doctor-blade. If causes 1 and 2 occur in the print cartridge, replace the print cartridge and try to print out. Scratched surface of the charge roller in Replace the transfer roller if occurred as the print cartridge. No. 3. Partial depression or deformation on the surface of the transfer roller. Vertical White Line Digita Printer Digita Printer Digita Printer Digita Printer Digita Printer White vertical voids in the image. Check and Cause Solution Foreign matter stuck onto the window or internal lenses of LSU mirror. Foreign matter or toner particles between the developer roller and blade. (If the print cartridge is at or near endof-life, white lines or light image occur in front of the image.) It may occur when a burr and foreign substances are on the window of the print cartridge frame. ■ Foreign matter stuck onto the window: Clean the LSU window with recommended cleaner (IPA) Clean the window with a clean cotton swab. ■ Foreign matter in the LSU: Open the cover of LSU and clean with a cotton swab on the surface of the reflex mirror. Remove the foreign matter and burr of the exposure window. (Print Cartridge) If the fuser is defective, voids occur periodically at the top of a black image. Open the front cover and check ribs that correspond to the position of the voids. Remove if found. If the problems are not solved, replace the print cartridge. 5-10 Phaser 3300MFP Service Manual