Lexmark C912 Service Manual - Page 141

5055-xxx Problem Toner smears or rubs off the page. Color fades with fuzzy, poorly defined edges. Action Be sure you're using recommended paper or media. Be sure you have selected the correct Paper Weight setting for the media you're using. Be sure the top cover is completely closed and both sides are snapped shut. You may need to replace the fuser. Print out a Menu Setting page and check the level of supplies. If a toner cartridge shows 10% or less, shaking the cartridge may improve the printout. Remove the cartridges and photodevelopers from the printer. Use a lint-free, dry cloth to clean the LED's of any stray toner. Wipe one at a time and proceed from the front of the printer to the back in one gentle swipe. It may take more than one pass. Use a different spot on the cloth or a new cloth for each LED. Reinstall supplies and test. Remove the supplies from the printer. Check the LEDs are free to move upward. With the supplies out, the metal post is visible on the LED. Push up on the post and make sure it returns to its previous position. If the LED is binding, it is possible there is an incorrect screw holding the cover in place. If too long a screw is installed in the cover it will bind against the LED. The correct screw length is 3.5 mm. Install the screws and test. Debris in the contact blocks may cause fading. Make sure there is nothing in the contact block to keep it from seating securely when the top cover is closed. Diagnostic information 2-91