Lexmark C720 User's Guide - Page 59

When you need to install a new waste toner bottle, see Replacing the waste toner bottle or the installation instructions that come with the new waste toner bottle. Fuser and air filter kit Air filter Fuser The fuser uses heat and pressure to permanently bond the toner to the print media. The air filter removes dust and other contaminants from the printer. You receive a new filter each time you order the fuser kit. The approximate yield of the fuser and air filter is 40,000 pages. Your printer monitors the life of your fuser. When the fuser reaches the end of its life, the printer shows 87 Fuser Exhausted. It is time for you to replace your fuser and air filter. If you do not already have a replacement fuser and air filter kit available, order one at this time. For more information on ordering a fuser and air filter kit, see Ordering supplies. Press Go to clear the message. The Supplies message appears on the second line of the operator panel to remind you that supplies need attention. The printer continues to display the Fuser Exhausted in the Supplies Menu until you replace the fuser and air filter. When the fuser is exhausted you may experience poor print quality and an increase in paper jams. When you need to install a new fuser and air filter, see Replacing the fuser kit or the installation instructions that come with the new fuser and air filter. 59