Table 7-31. Vertical Dots Possible Cause Action Contaminated Static Eliminator teeth. Clean the Static Eliminator. Poor contact between the Static Eliminator and the Engine Controller Board. Clean the contacts, if contaminated. If the problem remains after cleaning, or parts are damaged or deformed, replace them. Deformed or deteriorated Transfer Roller. Replace the Transfer Roller. Defective Engine Controller Board. Replace the Engine Controller Board. Table 7-32. Vertical White Lines Possible Cause Action Lack of Toner or faulty Toner Cartridge. Redistribute the Toner in the Toner Cartridge. If the problem continues, replace the Toner Cartridge. Contamination in the Laser Path.
Clean the Laser Path. (Remove the Laser Scanner Assembly and clean the lens.) Defective Fuser. Replace the Fuser Assembly. Dirty mirror in the Laser Scanner. Replace the Laser Scanner. 7-72 Troubleshooting