Table 7-18. Dropouts Possible Cause Action Paper might be too smooth. Check the paper (or other print media) type and quality. Printer’s operating environment does not meet specifications. Make sure the printer’s operating environment meets specifications. Wrong Toner density setting. From the print quality menu on the Control Panel, adjust the Toner density setting. Make sure EconoMode is off. Wrong Fuser setting for paper type. From the Paper Handling Menu on the Control Panel, change the Fuser Mode setting or choose another paper type from the printer driver. See also “Blank Spots” on page 7-60. Table 7-19. Faded Print/Bubbles Possible Cause Action No Drum ground path.
With no ground path the Drum cannot discharge. The negative charge on the Drum repels Toner, and leaves a white page with bubble print. 1. Check the Drum ground spring and connect it as shown on page 6-44. 2. Replace the Engine Controller Board. Engine Controller Board. Replace the Engine Controller Board. Troubleshooting the Printing System 7-65